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IM CA71-E - Yokogawa

1. ce ccccccce Continued Signal eset EN eee OV Source of Po JoF ooo number of pulses n Preset number OFF ON 1 2 3 n of pulses A Press key Automatically turned off Providing Pulse Output Sourcing a Continuous Pulse Train Step 1 Using the function selector switch select PULSE The LCD shows the default frequency uz Step 2 Using the key set the frequency range Pressing of the key cycles through the 500 0 Hz 1000 Hz and 10 kHz options Step 3 Set the output value digit by digit using each pair of A and W output setting keys Each pair of A and keys corresponds to each digit of the LCD reading Each press of the A or W key increases or decreases the digit Increasing the digit from 9 or decreasing it from O causes the digit to overflow or underflow allowing you to set the output value without interruption Holding down the A or W key continuously changes the digit in question Pressing the key initializes the output setpoint to the de fault value differs depending on the frequency range Step 4 Pressing the puse s key once switches to amplitude setting mode The LCD provides a reading of i IM CA71 E TIP To change the frequency range place the calibrator in frequency setting mode with Step 5 Step 6 Step 7 Step 8 4 5 Sourcing Pulse Signals Set the output value digit by digit using each pair of A and Y output setting keys Each pair of A and amp keys corresp
2. 4 6 Input Two wire transmitter OOO OO mA HAL cu iii MEASURE SOURCE 24 V output CA71 AC adapter Using As a Loop Power Supply IM CA71 E 4 3 Sourcing Resistance or RTD Signal 4 3 Sourcing Resistance or RTD Signal e The calibrator sources a resistance signal by 1 receiving the resis tance measuring current supplied from the device being calibrated such as a resistance meter or RTD thermometer and 2 delivering the voltage V R x I proportional to the preset resistance R between the output terminals and 3 thus producing the equivalent resistance R V I Consequently the calibrator sources the signal correctly only for such devices that employ this method of measurement e The allowable range of the resistance measuring current that the cali brator receives from a resistance measuring device under calibration is rated as 0 1 to 5 mA Note however that accuracy lowers for resis tance measuring currents smaller than 0 5 mA For further details see Chapter 12 Specifications e Any resistance signal being sourced does not include the resistance component of the lead cables for source The calibrator is adjusted so that the signal has a resistance value as viewed from the output termi nals The whole resistance when measured at the ends of the lead cables for source is given by adding the resistance of the lead cables themselves approximately 0 1 Q on a round trip basis to the sourced resist
3. The calibrator detects temperature using its built in tempera ture sensor and outputs reference junction compensated thermoelectromotive force appropriate for the detected tem perature Step 3 To disable the INT RJ function turn off the calibrator by pressing the key Step 4 Place switch 3 back in the OFF left side position TIP Even when the INT RJ function is selected the temperature detected by an external RJ sensor precedes any other measured temperature if you plug the sensor into the RJ INPUT connector 7 4 Selecting the IPTS 68 Function By placing switch 4 IPTS 68 switch in the ON right side position you can select the IPTS 68 temperature scale when you choose the type K E J T N R S or B thermocouple or the Pt100 RTD Placing the switch in the OFF position results in the selection of the ITS 90 tem perature scale TIP When you have selected a type of thermocouple or RTD the LCD shows IPTS 68 7 6 IM CA71 E 7 9 7 6 T T 7 8 7 5 Switch Not Used Switch Not Used Although switch 5 No Use switch of the DIP has no effect on calibrator operation the switch should be placed in the OFF left side position Temp Switch Check that the switch should be placed in the OFF position Selecting the Contact In Function Contact Input for Pulse Measurement By placing switch 7 Contact In switch in the ON right side position you can measure transistor contact on off signals If you sele
4. l 1 1 IM CA71 E 1 Functions 1 2 E Main Functions e Source The calibrator sources a voltage current resistance thermocouple TC RTD frequency or pulse signal at a preset level Function DC voltage DC current SINK current Resistance Thermocouple TC RTD Frequency and pulse Description Sources a DC voltage signal in the 100 mV 1 V 10 V or 30 V range Sources a DC current signal in the 20 mA range Draws a sink current from an external power source in the 20 mA range Sources a resistance signal in the 400 Q range Sources a thermoelectromotive force corresponding to the temperature detected by a type K E J T R B S N Lor U thermocouple Sources resistance corresponding to the temperature de tected by a Pt100 or JPt100 RTD Sources a continuous pulse train with frequency in the 500 Hz 1 kHz or 10 kHz range This function also sources the preset number of pulses defined by the frequency men tioned above IM CA71 E e Measurement 1 Functions Independent of the source function the calibrator measures DC volt age AC voltage DC current and resistance signals a temperature sig nal based on a thermocouple TC or RTD as well as frequency and the number of pulses Function DC voltage AC voltage DC current Resistance Thermocouple TC RTD Frequency and pulse Description Measures a DC voltage signal in the 100 mV 1 V 10 V or 100 V range Measures
5. 1300 0 C TC 100 C or less 200 0 900 0 C 200 0 400 0 C 0 1768 C 0 05 2 C J 7 100 C or greater o ae 0 05 3 C 600 1800 C 100 C or less Pt100 200 0 850 0 C RTD 0 05 0 6 C 0 1 C Accuracy during 3 wire measurement JPt100 200 0 500 0 C Temperature coefficient Accuracy shown above x 1 5 C 6 As per JIS C 1604 1997 ITS 90 IPTS 68 may be selected through internal settings DIP switch 7 As per JIS C 1602 1995 ITS 90 L and U are DIN specs K E J T N R S and B may be switched to IPTS 68 through internal settings DIP switch L and U are not switched 12 2 IM CA71 E 12 Specifications E General specifications for both CA51 and CA71 Signal sourcing unit response time Signal sourcing unit voltage limiter Signal sourcing unit current limiter Divided output n m function Auto step output function Sweep function Memory function Measuring unit maximum input Current terminal input protection Measuring unit ground voltage Measurement display updating rate Serial interface Display Backlight Power supply Battery life Consumed power Auto power off function Applicable standards Insulation resistance Withstand voltage Operating temperature and humidity ranges Storage temperature and humidity ranges IM CA71 E IEC61010 1 IEC61010 2 31 Across input terminal and output terminal 500 V Across input terminal and ou
6. Pressing the key cycles through the 400 Q Pt100 and JPt100 options TIP e If you select the 400 Q RTD range of the SOURCE mode at the same time the RTD selected on the SOURCE mode side precedes the one selected on the MEA SURE mode side Thus you cannot select any RTD for the 2 RTD range of the MEASURE mode CA71 only e To carry out measurement based on three wire connection use the 3WIRE termi nal 5 6 IM CA71 E 5 4 Measuring Temperature with Thermocouple TC CA71 only 5 4 Measuring Temperature with Thermo couple TC CA71 only A NOTE Use the terminal adapter in locations where any voltage higher than 30 V will never be imposed on the measuring circuit Step 1 Using the function selector switch select 00m Tc Step 2 Using the key select the type of thermocouple Press ing the key cycles through the 100 mV K E J T R B S N L and U options TIP If you select the 100 mV TC range of the SOURCE mode at the same time the thermocouple selected on the SOURCE mode side precedes the one selected on the MEASURE mode side Thus you cannot select any thermocouple for the 100 mV TC range of the MEASURE mode If there has been a sudden change in the operating ambient temperature of the calibrator wait until the built in reference junction compensation stabilizes Avoid using the calibrator in locations exposed to wind from such apparatus as an air conditioner If the thermocouple has burn
7. 10 1 10 1 Calibration Standard Selection and Environmental FICCUIFOMICIAS sieniin chau atti ng Geanndanntadics 10 1 IM CA71 E Contents 10 2 Adjusting Source FUNCTIONS ccccceeeceeeeeeeeeeeeeeeeeeeeaeeeaeeseees 10 3 10 3 Adjusting Measurement FUNCTIONS ccceeeeeeeeeeeeeeeeeeeeeeneeeees 10 6 10 3 1 Adjusting DC Voltage and DC Current Ranges 10 6 10 3 2 Adjusting AC Voltage and Resistance 400 Q Ranges 10 8 10 4 Notes on the Adjustment of Temperature Ranges SCALE WOM YF recicncs ce snre sn ccssanectecierucet a 10 9 10 5 Post adjustment Verification ccccccceceeeeeeeeeeeeeeeeeeeeeaeeeeeeeeees 10 9 Vi SING ACCCSSOMES oona aa a 11 1 12 SPECHICAIOMS sess cisici ences aes ete ceiecte escent 12 1 IM CA71 E Ix Functions Functions jqe uoleolunWwWOD Jajdepe ov a a si iy Sy se imi Sse Se SN ii ei mi se a ne eS Gy Si ua in tins es iS in is YOUMS J40 UO Spow zu Ww INSLE N n19 cc O A ddns JOMOd josues YOUMS JO UO 1 MOd Po eunyesedwap IO Rp SRR oe eer I Ja JaAUOD JO aAUOD INdNI faf a y 30 9q l E Block Diagram 10 S1S 1 JUNUS NOI uo11098 9p Ueno l UOI OES rH JUB SUOD PON AYNSVAW i uo012 9S poNWw J94NOS 1 Josuas l eunyesoduay J9 J8AU09 JOpIAIp anos vwa l JO J8AU0D aHe 0A 1 gounos q 9 10 99 S sind Pujai N induj OH I 1 beyon JHNSYIN H Oo o 29u 19J 4 l l l
8. 2 xi mi lt Input resistance 10 MQ or greater 1V 0 1 1000 V 0 025 0 2 mV 0 1 m DC voltage 10 V 0 11 000 V 0 025 2 mV 1 mV Input resistance Approximately 1 MQ 100 V 0 110 00 V 0 05 20 mV 10 01 V 20 mA 0 24 000 mA 0 025 4 uA 1 pA DC current Input resistance Approximately 14 Q 100mA 0 100 00 mA 0 04 30 uA 10 uA Resistance 400 Q 0 400 00 Q 0 05 0 1 Q 0 01 Q Accuracy during 3 wire measurement Ss Approximately 10 4 85 He Xi y ROC 10V 0 11 00 V 0 5 5 dgt MQ 10 pF pul n range voltage 7 100 V 0 110 0 V Input resistance Measurement gt Approximately 1 method Average 300 V 0 300 V 0 5 2 dgft 1V MQ 10 pF value rectification 100 Hz 1 00 100 00 Hz 0 01 Hz Maximum input 30V peak 1000 Hz 1 0 1000 0 Hz ooo EA i or greater Frequency ensitivity 0 5 peak or greater pulse 10 kHz 0 001 11 000 kHz 2 dgt 0 001 kHz ve input Maximum 100 Hz CPM 0 99 999 CPM 1CPM_ CPM Counts per minute CPH Counts per hour CPH 0 99 999 CPH Temperature coefficient Accuracy shown above x 1 5 C 3 Measurement unit temperature CA71 only range and accuracy Accuracy reading percentage C Parameter Reference Accuracy 235 C per year Resolution Remarks 200 0 1372 0 C 200 0 1000 0 C 200 0 1200 0 C 0 05 1 5 C 100 C or greater 200 0 400 0 C 0 1 C 0 05 2 C 200 0
9. 20mA 20mA 0 0025 0 4 uA 100 mA 100 mA 0 004 3 WA Decade o AC calibrator 1 V 1V or AC voltage source t t Environmental Requirements Ambient temperature 23 1 C Relative humidity 45 to 75 Warm up Before use warm up the calibration standard for the period of time specified for the stan dard The indicator blinks when Oe ee Auxiliary digit indicator any source function is being operated The value should be read as 400 000 CAZ mano CAL A gt MEASURE Soul 00mV TC 4002 RTD l 100mv T _ _ PULSE LIL a ae m VAASAA a oa CAL mode indicator Cor fae AAAA a BD 0 denotes zero point Gom p cal ed SY Gan adjustment and FS a mD g JE JION p i denotes full scale E n adjustment Key for lt Keys for adjusting the Noo confirming saving t etooint value of o adjustment value PAPAA Nene TSE ig Keys for switching Keys for selecting canceling Keys for adjusting the two digits between the CAL mode including the auxiliary digit measurement and Press in combination source CAL modes CAL mode Operation keys and Display Indications 10 2 IM CA71 E 10 2 Adjusting Source Functions 10 2 Adjusting Source Functions Table 10 1 Adjustment Points of Source Functions Adjustment Points Range CAL 0 CAL FS E E EE ov o Jo oo
10. 600 1800 C 0 02 1 5 C 1000 C or greater 500 Hz _ 1 0 500 0 Hz 0 2 Hz 0 1 Hz Output voltage 0 1 15 V zero base waveform Amplitude accuracy 5 0 1 V 1000 Hz 90 1100 Hz 1 Hz 1HZ Maximum load current 10 mA requency Contact output pulse UD Se Ce Ve eee Oh sie with 0 0 V amplitude setting FET switch Pulse ON OFF 1 99 999 cycles 1 cycle Maximum open close voltage current 28 V 50 cycle mA Temperature coefficient Accuracy shown above x 1 5 C 1 Output up to 24 V 22 mA is possible when using the AC adapter 2 As per JIS C 1604 1997 ITS 90 IPTS 68 may be selected through internal settings DIP switch 3 Excitation current If less than 0 1 mA to 0 5 mA then add 0 025 Is mA Q or 0 06 Is mA C 4 As per JIS C 1602 1995 ITS 90 L and U are DIN specs K E J T N R S and B may be switched to IPTS 68 through internal settings DIP switch L and U are not switched 5 Frequency interval between one pulse and another and amplitude during pulse cycle source may have the same range as during frequency source V O O 9 5 T IM CA71 E 12 1 12 Specifications 2 Measurement unit range and accuracy for both CA51 and CA71 Accuracy reading percentage plus uV mV uA Q or dgt digit Parameter Reference Range Accuracy 235 C per year Remarks 100 mV 0 110 00 mV 0 025 20 uV 10 uV o9 3 3 22 2 lt 2 2
11. Ambient temperature and humidity Ambient temperature range 0 to 50 C Ambient humidity range 20 to 80 RH Use the instrument under non condensing condition e Flat and level locations Do not use the instrument in locations that are e exposed to direct sunlight or close to any heat source e exposed to frequent mechanical vibration e close to any noise source such as high voltage equipment or mo tive power sources e close to any source of intensive electric or electromagnetic fields e exposed to large amounts of greasy fumes hot steam dust or cor rosive gases e unstable or e exposed to a risk of explosion due to the presence of flammable gases 3 2 IM CA71 E IM CA71 E 3 3 Before Starting Source Measurement A NOTE Use the instrument under the following environmental conditions if precise source or measurement is your requirement Ambient temperature range 23 5 C ambient humidity range 20 to 80 RH non condensing When using the instrument within a temperature range of 0 to 18 C or 28 to 50 C add a value based on the temperature coefficient shown in Chapter 12 Specifications page 12 1 to the given accuracy rating When using the instrument at an ambient humidity of 30 or lower prevent electrostatic charges from being produced by using an antistatic mat or any other alternative means Condensation may occur if you relocate the instrument from places with low temperature and humidity
12. a DC voltage signal in the 1 V 10 V 100 V or 300 V range Measures a DC current signal in the 20 mA or 100 mA range The current terminals are equipped with a built in overrange input protection fuse Measures a resistance signal in the 400 Q range Measures temperature according to the type of thermo couple K E J T R B S N Lor U CA71 only Measures temperature according to the type of RID Pt100 or JPt100 CA71 only Measures frequency in the 100 Hz 1 kHz or 10 kHz range For pulse signals this function measures the number of pulses as a CPM count per minute or CPH count per hour reading You can also select and configure the following functions Function Description Divided output function n m Memory Sweep Auto step IM CA71 E Sources a setpoint x n m output signal where the vari ables m and n are defined as m 1 to 19 and n 0 to m Stores up to 50 sourced and measured values as a set Changes the output signal in a linear manner Automatically changes the value of n in a setpoint x n m output in a step by step manner 1 3 suojoun4 1 Functions e Power Supply The calibrator operates on AA size LR6 alkaline batteries or the op tional AC adapter 1 The thermocouples comply with the Japanese Industrial Standard JIS C1602 1995 ITS 90 except for the type L and U thermocouples that com ply with DIN 2 The RTD comply with the Japanese Industrial Standard
13. amp 20 mA Use the pairs of A and W keys for the decimals to make fine adjustments as the keys let you set the decimals in normal resolution Pressing the key initializes the signal setpoint to the default value 4 00 Step 3 Pressing the key causes the indicator on the LCD to change from B to The calibrator sources the preset 4 20 mA current signal between the output terminals Step 4 To turn off the output press the key once again The aw appears on the LCD and the output terminals are open cir cuited TIP If the signal setpoint is 3 mA or less no step by step setting is possible even if you operate the higher order output setting keys 4 4 IM CA71 E 4 2 3 IM CA71 E 4 2 Sourcing DC Voltage DC Current or SINK Current Signal 20 mA SINK Function The 20 mA SINK function can draw a preset amount of current from an external voltage source to the H terminal Thus you can use the cali brator in a loop test for example as a simulator for two wire transmit ters In that case use this function within the 5 to 28 V range of applied voltages The minimum value of the range for the 20 mA SINK function is 0 1 mA You can test the I O signals of a distributor by wiring the calibrator as indicated by the dashed lines in the following figure SS SS SS SS SS ee Se a aS ee eS SS eS a ee a a Distributor AC or DC power supply 1 5 V output MEASURE SOURCE CA71 Drawing SINK Current Step 1 Before connecti
14. at high accuracy levels it is advisable that the calibrator be calibrated once a year If the calibrator needs to be readjusted follow the procedure described below For a service of cali bration or readjustment contact the vender from which you purchased the instrument 10 1 Calibration Standard Selection and Envi ronmental Requirements Selection of Calibration Standard Select an appropriate calibration standard having the ranges shown in the following table and accuracy levels equal to or higher than those shown in the table Source Functions Function to Be 0 002 1 5 uV 0 002 10 uV 0 002 100 uV 0 002 1 mV Measure the current with 20 mA 22 mA 0 002 0 3 uA the DMM s mA range or measure the voltage it te ee 0 standard resistor drop across the 100 Q forthe DCA and 20 mA 20mA 0 002 0 3 uA standard resistor with the SINK functions DMM s voltage range and a high recision 5 mA DMM s resistance range rirrentecuree 4002 440Q 0 0025 0 01 O 4 ma for the Q 5 mA 0 0 High precision current 0 0025 function 400Q 2 2V 5mA source 5 mA 0 0025 DMM s voltage range IM CA71 E 0 1 juawsn py J0 e1q1 eD JO poyan 10 1 Calibration Standard Selection and Environmental Requirements Measurement Functions Function to Be Adjusted Standard s 0 0025 1 uV 0 0025 20 uV 0 0025 0 2 mV 0 005 2 mV
15. driven Py fo operation DIP switch IM CA71 E 7 1 Di YoUMsS did Aq papiaoig SuoN uUN4 7 1 Sweep Function 7 1 1 2 Sweep Function The sweep function lets you linearly change the calibrator output as shown in the following figure Sapon a at Sourced value The SOURCE ON The SOURCE OFF indication blinks indication blinks lt gt paging N Actual output OFF gt lt OFF 0 SOURCEON A A key operation Press Press ON gt When the SOURCE ON key is pressed at midpoints during a change in the output OFF gt SOURCEON A A A key operation Press Press Press ON Sweep Mode Operation Step 1 Step 2 Step 3 Step 4 Step 5 Press the key to turn off the calibrator Place switch 1 Sweep switch in the ON right side position By setting the position of switch 2 Speed switch change the sweep speed OFF left side 16 sec ON right side 32 sec Press the key to turn on the calibrator The LCD shows SWEEP Using the function selector switch select the function volt age current resistance thermocouple or RTD for which you want to source a signal In the case of pulse source the sweep function is disabled IM CA71 E 7 1 Sweep Function Step 6 Using the pair of A and Y keys set the upper limit of the signal to be output The lower limit is set to a value predeter mined depending on the selected range St
16. from 1 to 19 Using a pair of A or W keys change the value of n An output value n m times the main setpoint can be obtained ac cording to the setpoint of n The variable n can be set toa value from 0 to m IM CA71 E 4 6 Divided Output Function n m Step 6 Pressing the key causes the indicator on the LCD to change from B to ay The calibrator sources a main setpoint x n m signal between the output terminals for each range selected Step 7 To turn off the output press the key once again The ai appears on the LCD and the output terminals are open cir cuited Step 8 Pressing the key one more time cancels the divided out put n m mode TIP To change the main setpoint temporarily cancel the divided output n m mode Set the main setpoint once again Then place the calibrator in the divided output n m mode once again U O c O D IM CA71 E 4 19 4 7 Sweep Function 4 7 Sweep Function The sweep function varies the output in a linear manner For further details see Section 7 1 Sweep Function 4 8 Auto Step Function The auto step function varies the output in a step by step manner For further details see Section 7 2 Auto Step Function 4 9 Temperature Monitor Function Using the key you can show the monitored temperature on the LCD as described below When the Voltage Current Resistance or Pulse Continuous Pulse Train or Number of Pulses Range Is Selected The re
17. input terminals is 30 po te Red Black Black i a bd apsah a l Lead cables for i source Lead cables for measurement i w 98020 RD031 x oO I I 1 oe l 1m I OnO SF wate orn A Lioov maxt FUSED MEAS TERM SOURCE TERM 300V MAX 125mA S00V MAX 30V PEAK MAX 2 Gaoy max CAT 1 manoy cat YOKOGAWA SOURGE 4002 RTD 100mv TC_ PULSE Jam GY SA PULSE AA g i gt 7 S 45 S Fuse RJ sensor B9108WA A1501EF lt 3 CLON AC adapter A1020UP A1022UP or B9108WB WARNING amp It Is dangerous to operate this Instrument outside REC MALT EOK RUE RAMICERO i Its environmental specifications Refer to manual ERAESTEFKES Remove lead cables before changing batteries HORMEL DTV 7 MERWNTHO FOC RS232 communication cable 91017 SLEA a i for CA71 only IM CA71 E 11 1 saliosseodcy Husn 12 Specifications 1 Signal sourcing unit range and accuracy for both CA51 and C
18. memno A UJ key select the memory number whose data you want to read The LCD shows the data thus read out of memory The items of the read data are shown on their respective measured value and generated value display areas Ifthe area with the memory number contains no saved data the LCD shows e To cancel reading from the memory mode press the key or the rean WY key one more time e To save data anew while reading from memory overwrite the existing data by following step 2 in subsection 6 1 3 Overwriting Data in Memory IM CA71 E a suoioun Aow N 6 3 Clearing Data in Memory 6 3 Clearing Data in Memory 6 3 1 6 6 TIP Clearing Data by Selecting Desired Memory Number Step 1 Step 2 Step 3 Step 4 Press the key once The memno indicator on the LCD turns on Using the pair of memno A UJ key select the memory number whose data you want to clear Pressing the 7 key causes the LCD to show the alarm indi cation noA LLEAr no 88 indicates object memno Pressing the 4 key once again clears the data with the se lected memory number e To cancel clearing the data after the L EAr alarm indication is given press the key The calibrator reverts to memory mode saving reading e You can also clear the data after having read it from memory IM CA71 E 6 3 Clearing Data in Memory 6 3 2 Clearing All In Memory Data Globally Step 1 Press the key once The memno indic
19. of personnel or damage to the instrument This symbol indicates DC voltage current ee This symbol indicates AC voltage current gt This symbol indicates AC or DC voltage current A WARNING Indicates that there is a possibility of serious personal injury or loss of life if the operating procedure is not followed correctly and describes the precau tions for avoiding such injury or loss of life A CAUTION Indicates that there is a possibility of serious personal injury or damage to the instrument if the operating procedure is not followed correctly and describes the precautions for avoiding such injury or damage A NOTE Draws attention to information essential for understanding the operation and features lt IM CA71 E Precautions for Safe Use of the Instrument yi TIP Provides additional information to complement the present topic Damage to the instrument or personal injury or even loss of life may result from electrical shock or other factors To avoid this follow the precautions below A WARNING Use in gases Do not operate this instrument in areas where inflammable or explosive gases or vapor exists It is extremely hazardous to use the instrument under such environments Defects in protective features Do not operate this instrument if any defect seems to exist in such protec tive features as fuses Before operating the instrument make sure the pro tective features ar
20. sourced setpoint by one digit Enables Disables the output data header queries the current setting Enables Disables data hold mode queries the current setting Queries the measurement function On Off of measurement queries the current setting Sets the measuring range queries the current setting Outputs measured value Outputs error information Queries whether an external RJC sensor is connected Outputs the setting information Sets sourced setpoint queries the current setting Queries the source function On Off of source output queries the current setting Sets the sourcing range queries the current setting Switches between the normal and adjustment modes queries the cur rent setting Sets the sourced setpoint queries the current setting Sets the adjustment item queries the current setting Sets the adjustment point Saves the adjusted data Queries the measurement function Queries the source function Queries memory data Sets divided output n m mode queries the current setting Sets n m values in divided output n m mode queries the current set ting Sets the temperature monitor display for sourced TC RTD range queries the current setting TC RTD mode only Sets the display for sourced pulse range queries the current setting IM CA71 E 8 7 Detailed Description of Commands 8 7 Detailed Description of Commands IM CA71 E BL Turns the back lighting on and off queries the When normal cu
21. to places with high temperature and humidity or if the instrument experiences any sudden temperature change In that case leave the instrument under the given ambient temperature for at least one hour to ensure that the instrument is free from condensation before using the instrument E Installing or Replacing the Batteries A WARNING To avoid electrical shock always remove the source or measurement lead cables from the object under test as well as from the instrument itself A CAUTION To avoid the risk of fluid leakage or battery explosion install batteries with their positive and negative electrodes correctly positioned Do not short circuit the batteries Do not disassemble or heat the batteries or throw them into fire When replacing batteries replace all of the four batteries at the same time with new ones from the same manufacturer If the instrument will not be used for a prolonged period remove the batter ies from the instrument ce JUSWINSeSWy 901NOS Hues 310439 oO 3 Before Starting Source Measurement 3 4 Step 1 Remove the lead cables and AC adapter and turn off the cali brator before you begin installing batteries Step 2 Remove the battery holder cover by sliding it in the direction indicated by gt OPEN Step 3 Install four AA size LR6 alkaline batteries in the battery holder with their positive and negative electrodes positioned correctly as indicated on the holde
22. voltage to ground of the input termi nals is 300 V maximum To avoid electrical shock do NOT use the calibrator at any voltage exceeding the maximum voltage to ground The allowable voltage to ground when the supplied terminal adapter is at tached to the input terminals is 30 Vpeak maximum To avoid electrical shock do not use the terminal adapter for measuring any circuit voltage exceeding the maximum voltage to ground TIP e With the key you can hold the measured value e When no measurement needs to be made turn off the MEASURE mode by press ing the measure o key The measured value shown on the LCD disappears and power to the internal measuring circuit is cut off This strategy saves on battery power e The reading of a measured value is updated at approximately one second inter vals If the input is overranged the measured value on the LCD reads as IM CA71 E 5 1 JUDWSIINSPOIN oO 5 1 Connecting Cables to Terminals 5 1 Connecting Cables to Terminals For DC voltage AC voltage resistance frequency or pulse signal Step 1 Connect the red lead cable for measurement P N RDO31 to the H input terminal and the black lead cable to the L input terminal Step 2 Connect the two clips of the cables to the measuring termi nals of equipment under test while making sure the polarities are correct For DC current signal Step 1 Connect the red lead cable for measurement P N RDO31 to the mA input
23. 0 3 2 EN61000 3 3 EN55011 Class B Group Performance criterion under immunity test environments B self returnable performance deterioration Conditions of EMC Use AC adapter B9108WB for AC220 240V Lead cable for source 98020 Lead cable for measurement RD031 RS232 Communication cable 91017 and RJ sensor B9108WA attach a sleeve clamp ferrite core YOKOGAWA B9108WC Morimiya electric Co MSFC6KEX toward the main body of the instrument 12 4 IM CA71 E 12 Specifications E External Unit mm approx inches 54 5 2 15 193 7 61 f0 Ox r soov max G FUSED J eas TER 100mVv Tc_ PULSE 120 4 73 m aawer aa ac ue O Z D AAA Aa 2 Oa fa y Vv Y Y Lv Lv C A yy Note This figure shows the CA71 but there is no difference in exterior from the CA51 12 5 IM CA71 E co suoljeoyioeds YOKOGAWA Yokogawa Meters amp Instruments Corporation Yokogawa Meters amp Instruments Corporation International Sales Dept Tachihi Bld No 2 6 1 3 Sakaecho Tachikawa shi Tokyo 190 8586 Japan Phone 81 42 534 1413 Facsimile 81 42 534 1426 YOKOGAWA CORPORATION OF AMERICA U S A Phone 1 770 253 7000 Facsimile 1 770 251 2088 YOKOGAWA EUROPE B V THE NETHERLANDS Phone 31 334 64 1611 Facsimile 31 334 64 1610 YOKOGAWA ENGINEERING ASIA PTE LTD SINGAPORE Phone 65 6241 9933 Facsimile 65 624 1 2606
24. 1 Connect the red lead cable for source P N 98020 to the H output terminal and the black lead cable to the L output termi nal Step 2 Connect the two clips of the cables to the input of equipment under test while making sure the polarities are correct For 3 wire connection resistance or RTD signal Step 1 Connect the red lead cable for source P N 98020 to the H output terminal and both black lead cables to the L output terminal The two black lead cables should be fastened to gether to the L output terminals Step 2 Connect the three leading clips of the cables to the input of equipment under test while making sure the polarities are cor rect 4 2 IM CA71 E 4 2 Sourcing DC Voltage DC Current or SINK Current Signal 4 2 Sourcing DC Voltage DC Current or SINK Current Signal 4 2 1 IM CA71 E Sourcing DC Voltage or DC Current Signal Step 1 Step 2 Step 3 Step 4 Step 5 Using the Function selector switch select the desired source function from 00mV TC 1V 10V 30V and 20mA The LCD shows the default value and unit of the source func tion Set the output value digit by digit using each pair of A and Y output setting keys Each pair of A and amp keys corresponds to each digit of the LCD reading Each press of the A and W key increases or decreases the digit Increasing the digit from 9 or decreasing it from O causes the digit to overflow or underflow allowing you to set the output value w
25. 6 3 1 Clearing Data by Selecting Desired Memory Number 6 6 6 3 2 Clearing All In Memory Data Globally eeeeeeeee 6 7 6 4 Sending Out Data from Memory CA71 only ce eeecceeeeeeeees 6 7 Functions Provided by DIP Switch ccsseeseeseesseneeeeees 7 1 7 1 OWED LINCOM cee aa cae ae ae 7 2 7 2 PAULO SIED FUNCUON iescac62 25225 es tecsnceecveradesseareesdnescenre a 7 4 7 3 Selecting the INT RJ Function ccccceeeecceeeseseeeeeeeeeeeeeeeeeess 7 6 7 4 Selecting the IPTS 68 FUNCTION ccecccccceeeeeceeeeeeeeeeeeeaeeaeeaeeeees 7 6 To SWIC Nor Used orein a AE a STEE 7 7 AO TEMO SWIC caserios AT 7 7 7 7 Selecting the Contact In Function Contact Input for Pulse Measurement 0cccceeeeeneeeeeeeeeeees 7 7 7 8 Disabling the Automatic Power off Feature ccccccsseeeeeeeeeees 7 7 Communication Function CA71 only cccesseseeeeeeeeeeees 8 1 8 1 Cables Connection and Interface Specifications ccccceee 8 1 82 Getting INE Mode sa ase eels ede aoa Set eek el 8 2 83 peso MOAS cerni Whe Eee eee E ee AeA A a emer 8 2 8 4 Data FOMA onada a R An Ea 8 3 8 5 Data Sr CtUre ees ee em ee 8 3 686 7010 110 13 gt ge om ne a 8 4 8 7 Detailed Description of COMMANAS cccccccceceeeeeeeeeeeeeeeesseees 8 5 TVOUDICSIOOUING msaa tel oec eedencen a anacenmeeetends 9 1 Method of Calibrator Adjustment ccseeeessseesseeeseeees
26. A71 setting percentage plus uV mV mA Q or C Parameter Reference Range Accuracy 235 C per year Resolution Remarks 100 mV _ 10 00 110 00 mV 0 02 15uV 110 uV DC volt 1V 0 1 1000 V 0 02 0 1 mV 10 1 mV Maximum output 5 mA voltage 10V 0 11 000 V 0 02 1mV 1mV_ Maximum output 10 mA 30 V 0 30 00 V 0 02 10 mV 110 mV Maximum output 10 mA 20mA_ 0 24 000 mA 1 uA DC current 0 025 3 uA Maximum load 12 V 4 20 mA 4 8 12 16 20 mA 4mA mA SINK 20mA_ 0 1 24 000 mA 0 05 3 uA 1 uA External power supply 5 28 V Resistance 400 Q 0 400 00 Q 0 025 0 1 Q 0 01 Q JEycitation current 0 5 5 mA 2 Pt100 2 200 0 850 0 C If 0 1 mA add 0 25 Q or 0 6 C Subject RTD eE ETE 0 025 0 3 C 0 1 C device input capacitance 0 1 uF or less K 200 0 1372 0 C 0 02 0 5 C E 200 0 1000 0 C 100 C or greater 0 02 1 C J 200 0 1200 0 C 100 C or less 0 1 C T 200 0 400 0 C 0 02 0 5 C N ZOLO OO er grealen TC source accuracy does not include RJ L 200 0 900 0 C 0 02 1 C sensor accuracy RJ sensor specs 200 0 400 0 i l TG 2 sae Cee Measurement range 10 50 C R 0 02 2 5 C Accuracy when combined with main unit 1 00 C or less 18 28 C 0 5 C 0 1768 C Other than the above 1 C 5 0 02 1 5 C 100 C or greater wees 0 02 2 C 1000 C or less B
27. Adjustment Setpoint Range CAL 0 CAL FS ow Yd TC wv ovo SSCS pcz0ma kom meroma fom miv ov fvw o moov ov fovsoson acrov ov fiovsoson Pacaoov ov foovsoson 2 Apply the reference input signals listed above from the calibration standard TIP e You can also select only the range in need of readjustment to adjust it separately e Always make zero point 0 adjustments together with full scale FS adjustments 10 3 1 Adjusting DC Voltage and DC Current Ranges Step 1 Press the key while simultaneously holding down the key The LCD shows LAL Sre Step 2 Pressing the highest order A key causes the LCD to show CAL ncAS Step 3 Pressing the key enters the measurement CAL mode The indicator blinks on the LCD and the 44 symbol appears The calibrator is now ready for the defining the CAL FS setpoint of measurement functions ey ma ro Tm Ci st mna id mim CAL FS CAL mode Operation Keys and Display Indications 10 6 IM CA71 E 10 3 Adjusting Measurement Functions Step 4 Apply the CAL FS adjustment setpoint inout of each range in Table 10 2 from the calibration standard to the H and L input terminals of the calibrator Step 5 Pressing the key confirms the CAL FS adjustment setpoint At this point the 44 symbol blinks Step 6 Pressing the once again saves the adjustment setpoint in memory A NOTE e Range adjustment
28. Ambient Temperature and Humidity Use the CA51 71 in the following environment e Ambient temperature 0 to 50 C e Ambient humidity 20 to 80 RH no condensation Operating Altitude 2000 m max above sea level Location Indoors Measurement Category CAT The measurement category of the CA51 71 is III 300 Vrms max WARNING Do not use the CA150 for measurements in locations falling under Measure ment Categories IV IM CA71 E 3 Before Starting Source Measurement Measurement Category Measurement Category CAT lI CAT Il II CAT Ill IV CAT IV Distribution Entrance Cable CAT IV Internal Wiring 1 Fixed Equipment i etc Description For measurement performed on circuits not directly connected to MAINS For measurement performed on circuits directly connected to the low voltage installation For measurement performed in the building installation For measurement performed at the source of low voltage installation CAT Ill CAT II emia taney e iat face ss a ay se cel Equipment Pollution Degree Remarks Appliances portable equipments etc Distribution board circuit breaker etc Overhead wire cable systems etc Pollution Degree applies to the degree of adhesion of a solid liquid or gas which deteriorates withstand voltage or surface resistivity The pollution degree of the CA150 in the operating
29. JIS C1604 1997 ITS 90 The internal DIP switch can be configured so that the detectors comply with IPTS 68 instead 1 4 IM CA71 E 2 Names and Functions of Parts IM CA71 E Q ONO 04 T100 oov max I G FUSED SOURCE T es pa ae puse mee AT s a a a Gx BD Ft gy IL JIL ES ae _ L SS i instrument outside Ral SEET ENE O YR ORAECERO a Roler rom one ERSREUTHEPUKS S THOR ti KT JPERU TIO BITICHS 2 1 Sed JO SUOI OUN pue SoweN Da 2 Names and Functions of Parts 2 2 Front Panel POWER Key Turns on off the power supply LIGHT Key Turns on off the backlight of the LCD MEASURE Mode Functions for Measurement 3 DC Voltage AC Voltage Resistance and Pulse Input Terminals Serve as H positive and L negative input terminals when you mea sure DC voltage AC voltage resistance and pulse signals DC Current Input Terminals Serve as H positive and L negative input terminals when you mea sure a DC current signal Also serve as L terminals when you carry out 3 wire resistance measurement Three wire Input Terminals Function Selector Switch Selects a measurement function and its range RANGE DC AC Key Used to further select from range options within the selected function e If you have selected the 1 V 10 V or 100 V range use this key to toggle between the DC and AC op
30. MN oaae S aloe a Example of Key Operation Press the MEM key Indication of the selection Data is saved into the area with memory number Press the MEM SAVE key 14 and the memory mode is cancelled y A Press ee key once again Indication of the selection Press e No A key six times Indication of the selection Press the MEM SAVE key Data is saved into the area with memory number 21 and the memory mode is cancelled Working with the MEM SAVE Function A NOTE In memory mode some of the A and VY keys change to those for working with memory Consequently you cannot do the regular task of setting out put values for source The MEM No indicator begins with j if no data has been saved into memory If memory contains any saved data already a memory number immediately following the largest of the already used memory numbers is allocated to the next data as shown in the figure discussed above even if there is any not yet used memory address at some midpoint In the case of the divided output function n m the output value setpoint x n m for source is stored in memory IM CA71 E 6 3 a suolpuny Aow N 6 1 Saving Data into Memory 6 1 2 Saving Data by Selecting Desired Memory Num ber Step 1 Step 2 Step 3 TIP Press the key The memno indicator on the LCD turns on Using the pair of memno A WJ key select the desired memory number address Pressing the save 4 key sa
31. P switch IM CA71 E 2 Names and Functions of Parts 24 I O Port Cover Oo of F IM CA71 E Open this cover to connect the RS232 communication cable P N 91017 CA71 only LCD Unit Measured value Setpoint for source HOLD indicator Indicates the on screen measured value is in a hold state Contact input Indicates the contact input is selected when your choice is pulse mea surement ON OFF indicators for output ON Indicates the output is on OFF Indicates the output is off SWEEP indicator for sweep function Comes on when the sweep function is selected using the DIP switch MEM NO indicator Shows a memory number when the memory function is selected AUTO STEP indicator Comes on when the auto step function is selected Divided output function n m indicator Comes on when the divided output function n m is selected The most significant two digits 18 denote the value of n while the least significant two digits 88 mean the value of m CAL mode selection indicator The 0 and FS indicators below this indicator denote zero point and full scale adjustments respectively 2 5 Sed JO SUOI OUN pue SoweN D 2 Names and Functions of Parts k Battery replacement indicator Shows the battery level in three steps according to the level of remain ing electricity RJON indicator Indicates reference junction compensation is active when thermoelectromoti
32. The calibrator is now ready for defining the CAL 0 setpoints of measurement functions Using the function selector switch select the range to be ad justed Pressing the key confirms the CAL 0 adjustment setpoint The CAL indicator on the LCD changes to s setting the cali brator ready for full scale calibration Apply the CAL FS adjustment setpoint input of each range in Table 10 2 from the calibration standard to the H and L input terminals of the calibrator Pressing the key confirms the CAL FS adjustment setpoint At this point the 0 and FS symbol blinks Pressing the once again saves the adjustment setpoint in memory e Range adjustments are made automatically within the calibrator so that the LCD reading matches the adjustment setpoint in question given in the table with reference to the input applied as described above Therefore you need not make any range adjustment with A and VW keys e Saving the adjustment setpoint results in the overwriting of existing data Be extremely careful since the previous adjustment setpoints are cleared e The temperature measuring ranges of the RTD function are adjusted at the same time when the 400 Q range is adjusted 10 8 IM CA71 E 10 3 Adjusting Measurement Functions Step 9 The 0 and FS symbols stop blinking causing the calibrator to return to the state discussed in step 4 Using the measure ment range setting rotary switch select the next range By repeat
33. User s Manual Model CA51 71 HANDY CAL Calibrator IM CA71 E YOKOGAWA 4 2nd Eaton Dac 2006 Yokogawa Meters amp Instruments Corporation Introduction Thank you for purchasing the CA51 71 HANDY CAL Calibrator This User s Manual explains the functions of the CA51 71 as well as the operating methods and handling precautions Before using the CA51 71 read this manual thoroughly to ensure correct use of the instru ment When you have finished reading this manual store it in the car rying case for future reference E Notes This manual exclusively describes the CA71 which is more multifunc tional than the CA51 The CA51 has no temperature measurement and communication functions The contents of this manual are subject to change without prior notice for reasons of improvements in performance and or functionality Every effort has been made to ensure the accuracy of this manual If you notice any errors or have any questions however please contact the vender from which you purchased the instrument The content of this manual may not be transcribed or reproduced in part or in whole without prior permission E Trademark Acknowledgments All other company and product names appearing in this document are trademarks or registered trademarks of their respective holders E Revision Information February 2002 First edition December 2006 2nd edition Disk No CA71 E 2nd Edition Dec 2006 All Rights Reserved Co
34. YOKOGAWA AMERICA DO SUL S A BRAZIL Phone 55 11 5681 2400 Facsimile 55 11 5681 1274 YOKOGAWA MEASURING INSTRUMENTS KOREA CORPORATION KOREA Phone 82 2 551 0660 to 0664 Facsimile 82 2 551 0665 YOKOGAWA AUSTRALIA PTY LTD AUSTRALIA Phone 61 2 9805 0699 Facsimile 61 2 9888 1844 YOKOGAWA INDIA LTD INDIA Phone 91 80 4158 6000 Facsimile 91 80 2852 1441 YOKOGAWA SHANGHAI TRADING CO LTD CHINA Phone 86 21 6880 8107 Facsimile 86 21 6880 4987 YOKOGAWA MIDDLE EAST E C BAHRAIN Phone 973 358100 Facsimile 973 336100 LTD YOKOGAWA ELECTRIC RUSSIAN FEDERATION
35. ading of a sourced signal remains changed to the temperature detected by the built in temperature sensor of the calibrator as long as the key is kept held down Thus you can monitor the room s tem perature When the Temperature Thermocouple or RTD Range Is Selected e Pressing the key once allows you to monitor the electromotive force mV or resistance Q equivalent to the preset temperature The monitored value does not reflect the correction made by the RJ sensor e Pressing the key once again changes to the temperature de tected by the RJ sensor connected to the calibrator or the internal temperature of the calibrator e Pressing the key one more time reverts to the initial normal setting mode 4 20 IM CA71 E 4 9 Temperature Monitor Function TIP e In approximately 10 seconds the temperature monitor function automatically re turns to the initial normal setting mode e The reading of internal temperature may become higher than the room s tempera ture because of a temperature rise within the calibrator With an external RJ sen sor it is possible to measure the room s temperature more precisely e For a reading of monitored temperature the unit symbol mV Q or C blinks Thus you can discriminate between a setpoint and a monitored value IM CA71 E 4 21 5 Measurement A WARNING In an application where the calibrator is used together with the supplied lead cables for measurement the allowable
36. ain The am appears on the LCD and the output terminals are open cir cuited IM CA71 E 4 4 Sourcing Thermocouple TC Signals 4 4 Sourcing Thermocouple TC Signals When RJ Sensor Is Used Making Use of Refer ence Junction Compensation 4 4 1 IM CA71 E To calibrate a device with built in reference junction temperature com pensation by sourcing a thermoelectromotive force with the calibrator without using any external 0 C reference junction compensation means use the optional RJ sensor P N B9108WA Step 1 Step 2 Step 3 Step 4 Step 5 Insert the RJ sensor into the R J INPUT connector of the cali brator Insert the sensor until the locking claw in the bottom of the sensor connector locks with a click To unplug the sensor connecior unlock the connector by gently pushing the locking claw Using the function selector switch select 00mV TC Using the key select the type of thermocouple Select the type from K J E T R B S N L and U The selected type of thermocouple is shown on the LCD When the Ru sensor is connected the calibrator goes into the RJ ON status and the RJON symbol appears on the LCD Set the output value digit by digit using each pair of A and J output setting keys Each pair of A and amp keys corresponds to each digit of the LCD reading Each press of the A or W key increases or decreases the digit Increasing the digit from 9 or decreasing it from O causes the digit
37. ance signal For source of precise resistance signals use three wire connection e f capacitance between the terminals of a device under calibration is greater than 0 1 uF the calibrator may fail to source correct resistance signals Output Method Based on Three wire Connection Attach another lead cable to the L output terminal as shown in the following figure The output is provided through the three wires H L and L Connect these three wires to the device being calibrated Three wire Connection for Resistance Signal Source IM CA71 E 4 7 4 3 Sourcing Resistance or RTD Signal 4 8 Step 1 Step 2 Step 3 Step 4 Step 5 Using the function selector switch select 4002 RTD Using the key select the range Pressing the key cycles through the 400 Q PT100 and JPT100 options Set the output value digit by digit using each pair of A and Y keys Each press of the A or W key increases or decreases the digit Increasing the digit from 9 or decreasing it from 0 causes the digit to overflow or underflow allowing you to set the output value without interruption Holding down the 4 or W key continuously changes the digit in question Pressing the key initializes the output setpoint to the default value 0 Pressing the key causes the indicator on the LCD to change from B to The calibrator sources the preset resistance value between the output terminals To turn off the output press the key once ag
38. ator on the LCD turns on Step 2 Hold down the key for at least five seconds The LCD shows the ALt CLEA alarm indication Step 3 Pressing the key once again clears all of the data in memory cil SILL Ii COL LLC ALL CLEAr alarm indication TIP e To cancel clearing the data after the Ali CLEAr alarm indication is given press the key The calibrator reverts to memory mode saving reading 6 4 Sending Out Data from Memory CA71 only See Chapter 8 Communication Function 6 IM CA71 E Kaa suolpuny Aow N 7 Functions Provided by DIP Switch By configuring the DIP switch you can use the functions listed below The DIP switch can be found by removing the battery holder cover at the back of the calibrator A CAUTION Turn off the calibrator before you change the DIP switch configuration DIP Switch Factory Setting witc Position EAEEREN OFF oN left side right side Selects the sweep or auto step function fF oY fo 2 Speed Changes the speed setpoint of the sweep or auto step function fo w 3 INT RJ Selects the internal reference junction compensation for TC signal pv fo generation 4 IPTS 68 Selects the IPTS 68 temperature scale for temperature signal I generation or measurement Denotes the position is not used 6 Temp OFF Vv 7 Contact In Selects contact input based operation for pulse measurement Tw vy 8 Auto P off Cancels the automatic power off feature during battery
39. ct the contact input function the contact symbol appears on the LCD By placing the switch in the OFF position you can measure normal pulse Disabling the Automatic Power off Feature By placing switch 8 Auto P Off switch in the ON right side position you can disable the automatic power off feature and continue using the calibrator See the paragraph Automatic Power off in Chapter 3 Before Starting Source Measurement for further details A NOTE If you have disabled the automatic power off feature be sure to turn off the POWER switch when you finish using the instrument in order to prevent un usual battery power consumption IM CA71 E YyoUMs did Aq papiaoig suonouny 8 Communication Function CA71 only You can configure the calibrator from a personal computer just as you do with the calibrator s panel keys except for turning on off the power configuring the function selector switch and setting the communication function You can also verify the setpoint measured value and status of the calibrator A NOTE e With the optional communication cable P N 91017 you can use the RS232 serial port 9 pin D sub of a personal computer or any other equipment In talk only or printer mode you can output the source setpoint and mea sured value at preset intervals 8 1 Cables Connection and Interface Specifi cations Connecting Communication Cable Remove the I O port cover at the bac
40. current input terminals are equipped with a built in current input protec tion fuse Overcurrent input to the terminals will cause the fuse to blow If the fuse is blown replace it with one P N A1501EF with the specified rat ings For details on fuse replacement see subsection 5 2 3 Measuring DC Current Terminal adapter 99021 Z WARNING The allowable voltage to ground when the included terminal adapter is attached to the input terminals is 30 Vpeak maximum yu wW InNsSedN Ka Lead cables for measurement 3 EC RD031 E A SOURCE TERM 30V PEAK MAX CAZ ae YOKOGAWA lt gt MEASURE SOURCE 100mV TC 4002 ATD 100mv TC_ PULSE IM CA71 E 5 3 5 2 Measuring 300 V AC range Voltage DC Voltage AC Voltage or DC Current 5 2 Measuring 300 V AC range Voltage DC Voltage AC Voltage or DC Current 5 2 1 Measuring 300 V AC range Voltage A CAUTION If you make a mistake in wiring or in the operating procedure in this measure ment task there will be a danger of not only damage to the instrument but also personal injury due to electrical shock Exercise the utmost care when carry ing out the measurement task 9 2 2 5 2 3 5 4 Step 1 Step 2 Step 3 Make sure the lead cables for measurement are not con nected to the measuring instrument under test Using th
41. digits e Measured value exponent part E 3 E 0 E 3 de 99999 E 3 when overrange occurs or no data reside OE Outputs error information When narmal condition adjustment Syntax for setting OE lt delimiter gt Response ERRm lt delimiter gt Description of parameter m Error information m 00 No error m 11 Received command not used in this instrument m 12 Specified parameter value is outside allowed range m 13 Attempt made to execute a command that is not permitted in a certain status of the instrument m 16 An error was received during adjustment Queries whether an external RJC sensor is When normal connected condition Syntax for query OR lt delimiter gt _ _ Response m Description of parameter m Connecting condition of external RJC m 0 Not connected m 1 Connected OS Outputs the setting information men normal condition Syntax for setting OS lt delimiter gt Response Measure m lt CrLf gt m On Off oO uoljoun uonesiunwwog Function m lt CrLf gt m Measurement function Range m lt CrLf gt m Measuring range Source m lt CrLf gt m On Off Function m lt CrLf gt m Source function Range m lt CrLf gt m Source range Data m lt CrLf gt m Sourced setpoint Light m lt CrLf gt m On Off 8 8 7 Detailed Description of Commands SD Sets sourced setpoint queries the current setting When normal condition Syntax for setting SDm lt delimiter gt Syntax for query SD lt delimiter
42. e free from any defect External connection When connecting the instrument to the object under test or an external con trol circuit or if you need to touch any external circuit cut off the power to the circuit and make sure no voltage is being supplied Fuses In order to prevent a possible fire use a fuse with ratings current voltage and type specified for the instrument Do not short circuit the fuse holder Correctly use the lead cables for measurement P N RD031 and source P N 98020 without mistaking one for the other For high voltage measure ment always use the lead cable for measurement Opening of the case No person other than our service personnel is allowed to open the case since the instrument contains high voltage parts For the safe use of the optional AC adapter follow the precautions given below A WARNING Power supply Before turning on the instrument always make sure the voltage being sup plied matches the rated supply voltage of the instrument IM CA71 E Contents Wgh ie je 0 eld 0 9 vone ee sraee ee Mer oeny ete et Tne nae ea ete E Seer eee rete ae vance tes Checking Items in the Package ccccccccscsssseseeceeeeeeeeeeeeeeeeeeeeeeeeesssaaaeeeeeees ii Precautions for Safe Use of the Instrument cceceeeeeeeeeeeeeeeeeeeeeeeeeess V Tis TPUNRGHONS sects ccterrenctererd aaa aa a N 1 1 2 Names and Functions of Parts ccccccceesseeeeeeenee
43. e function selector switch select 300 Connect the lead cables for measurement to the measuring terminals of the measuring instrument under test Measuring DC or AC Voltage Step 1 Step 2 Using the function selector switch select the measurement function you want to use from 00mV TC 1V ZiO and 100V Using the key select either DC or AC The DC or AC symbol appears on the LCD Measuring DC Current Step 1 Step 2 Using the function selector switch select mA Using the key select either 20 mA or 100 mA The decimal point of the measured value shown on the LCD is repositioned IM CA71 E 5 2 Measuring 300 V AC range Voltage DC Voltage AC Voltage or DC Current IM CA71 E Replacing the Fuse The current input protection fuse in the mA 3WIRE terminal is housed inside the fuse holder labeled FUSE on one side panel of the calibra tor To replace the fuse first remove the fuse holder labeled FUSE by turning the holder counterclockwise with a flatolade screwdriver Then replace the fuse and insert the fuse holder back in place Fasten the fuse holder by turning it clockwise The replacement fuse is described below Part Number Rating A1501EF 125 mA 250 V fast acting 9 5 JUDWSDINSPOIN 5 3 Measuring Resistance or RTD CA71 only Signal 5 3 Measuring Resistance or RTD CA71 only Signal Step 1 Using the function selector switch select 2 RTD Step 2 Using the key select the range
44. eeeeeeeeeeeeeeeeaeeeeees 4 20 Ds Measurements aaa 5 1 5 1 Connecting Cables to Terminals ccccccccssseseeeeeeeeeeeeseeaeeesseees 5 2 5 2 Measuring 300 V AC range Voltage DC Voltage AC Voltage or DC Current ccccccceccssessseeeeeeeeeeeesssasaaeeeeeeeeeees 5 4 5 2 1 Measuring 300 V AC range Voltage ccecceeeeeeeeeeees 5 4 5 2 2 Measuring DC or AC Voltage cccccceeecesssseeeeeeeeeeeees 5 4 5 2 3 Measuring DC Current aicsean 5 4 5 3 Measuring Resistance or RTD CA71 only Signal 06 5 6 IM CA71 E vii SE BSRCRoR Soe Re RAR Contents 10 viii 5 4 Measuring Temperature with Thermocouple TC CA71 only 5 7 5 5 Measuring Frequency or Pulses sssseseesnnenessssssrrnrrrrrreeessrrrrnnn 5 8 5 5 1 Operating the Calibrator for Frequency Measurement 5 8 5 5 2 Operating the Calibrator for Measuring Number of Pulses 5 8 MeEMOry FUNCTIONS sissa eaaa aea a a aa 6 1 6 1 Saving Data into Memory esssannnnsesennnnnnnssnnnnesssnnrrnresnnrrrresennnrrene 6 2 6 1 1 Saving Data in the Order of Memory Numbers 6 2 6 1 2 Saving Data by Selecting Desired Memory Number 6 4 6 1 3 Overwriting Data in Memory ccccceeeceeceseeeeeeeeeeeeeees 6 4 6 2 Reading Data from Memory ccccecccccssceeceeceseeseseeeesseeeessaaees 6 5 6 3 Clearing Data in M MOSyY ccccccccccsseecececeseeceeceeeeesseeneeeseaaeees 6 6
45. eeeeeneeeeeennees 2 1 3 Before Starting Source Measurement cccccceeeeeseeeeeeeeeeeeeees 3 1 A DOUCE ane a aR 4 1 4 1 Connecting Cables to Terminals ccccccecssesseeeeeeeeeeeeseeaeeseeees 4 2 4 2 Sourcing DC Voltage DC Current or SINK Current Signal 4 3 4 2 1 Sourcing DC Voltage or DC Current Signal 4 3 422 4 20 MA FUNCTION excesses hee eines 4 4 4 2 3 20 MA SINK Function cece ceccececeeeeeeeeeeeeeeeesenees 4 5 4 2 4 Using As 24 V Loop Power Supply ccccseeeeeeeeeeees 4 6 4 3 Sourcing Resistance or RTD Signal ccccesesecceeeeeeseeseeeeeeeeees 4 7 4 4 Sourcing Thermocouple TC Signals cceeeeeeeeeeeeeeeeeeeees 4 9 4 4 1 When RJ Sensor Is Used Making Use of Reference Junction Compensation 4 9 4 4 2 When No RJ Sensor Is Used ccccceeeceeseseeeeeeeeeeeees 4 11 4 5 Sourcing Pulse Signals cceeeseeecceeeeeeseeeeeseseeeeeeeeeesaeeeeeeeees 4 12 4 5 1 Sourcing a Continuous Pulse Train ccceccceeeeeeeeees 4 12 4 5 2 Sourcing the Preset Number of Pulses Pulse Cycle 4 14 4 5 3 Using the Contact Output ec ccccccceceeeeeeeeeeeeeeeeeeeees 4 16 4 6 Divided Output FUNCTION N M cc cece sec eeeeseeeeeeeeeeeeeeseaaeaeeeees 4 18 Ad OWED FUNCION ccnn ican e ia eine ae aetna 4 20 48 Aulo Step FUNCION sass Fares oes a ia a aatia 4 20 4 9 Temperature Monitor Function ccccceceeecee
46. environment is 2 Pollution Degree 2 applies to normal indoor atmospheres Normally only non conductive pollution is emitted However a temporary electri cal conduction may occur depending on the concentration IM CA71 E 3 9 JUSWAINSeOWy 901NOS Hues 310439 oO 4 Source From the calibrator you can source a DC voltage DC current SINK current resistance thermocouple RTD frequency or pulse signal A WARNING To avoid electrical shock do not apply any voltage above 30 V to the output terminals Always use the calibrator in locations with a voltage to ground below 30 V CAUTION Do not apply any voltage to the output terminals for ranges other than 20 mA SINK Otherwise the internal circuitry may be damaged The instrument has been calibrated without taking into account a voltage drop due to the resistance component of the lead cables for source Care must be taken therefore when drawing a load current since the voltage drop due to the resistance component approximately 0 1 Q on a round trip basis of the lead cables serves as an error IM CA71 E 4 1 4 1 Connecting Cables to Terminals 4 1 Connecting Cables to Terminals Red Black Black Lead cables for source 98020 For DC voltage DC current thermocouple or pulse output Step
47. ep 7 Pressing the key initiates sweeping and the output value begins to increase e The LCD shows and the lower limit default for approximately two seconds The calibrator outputs the de fault e Then the LCD reading and the output value begin to in crease in fixed increments up to the upper limit in the sweep time set in the preceding steps e When the output reaches the setpoint the calibrator re tains the output as is and automatically holds sweep op eration Step 8 Pressing the key once again causes the output value to begin decreasing The output value decreases down to the lower limit in the same amount of time it took to increase up to the upper limit When the output reaches the lower limit the calibrator retains the output as is for approximately three sec onds and then automatically turns it off Thus one cycle of sweeping is completed Step 9 To quit the sweep function turn off the calibrator by pressing the key Step 10 Place switch 1 back in the OFF left side position to disable the sweep function A NOTE e When the output reaches the lower limit the calibrator retains the output as is for three seconds and then turns it off Thus one cycle of sweeping is completed To alter the direction in which the output changes press the key when sweeping is in progress LCD reading is changing The calibrator alters the direction of change and continues sweep operation For example pressing t
48. eption tonl Talk only mode Outputs the source setpoint and measured 8 2 value at preset intervals 0 to 3600 sec Print Printer mode Outputs the source setpoint and measured value to a printer at preset intervals 0 to 3600 sec For a 0 second interval each press of the key outputs one data item For other intervals pressing the key initiates or terminates communication IM CA71 E 8 4 Data Format TIP When communication is in progress the indicator blinks telling you data is being output Care must be taken therefore since the hold function of the MEASURE mode is disabled if you select Fant 4 or Print 8 4 Data Format Data is output from the calibrator in the following format Source Function 1V Range DC V Data 1 0000 Measure Function 100 mV Range k Data 25 5C 8 5 Data Structure The calibrator s program has the following data structure Command Parameter Delimiter Command Defined by one to three alphabetical upper case let ters Parameter A string of ASCIl code numerals or characters Delimiter Fixed to CrLf IM CA71 E 8 3 Ga uoloun uonesiunwwog 8 6 Commands 8 6 Commands BL DW UP H HD MF MO MR OD OE OR OS SD SF SO SR SY CD CL CP CW CMF CSF OM NM ND TE PU 8 4 Turns the back lighting on and off queries the current setting Moves down the m th digit of the sourced setpoint by one digit Moves up the m th digit of the
49. even if the output is turned on The measured and sourced sig nal values are abnormal The calibrator cannot be config ured or controlled via RS232 in terface based communication The hold function of the MEA SURE mode does not work at all The LCD shows Err60 at power on IM CA71 E Make sure the batteries are securely housed in the holder Check if the batteries are too low Check if the AC adapter plug is inserted to the calibrator but the adapter is not connected to the AC power source When the calibrator is operated on AC adapter Check if the AC adapter is reliably supplied with electricity Check if the MEASURE OFF key for turning on off the MEASURE mode is set to OFF When in voltage signal source check if the load current is beyond the specified limits When in current signal source check if the load resistance is too large The built in fuse may blow off if any abnormal voltage level is applied to the output terminals If this is the case the calibrator needs repair Check if the signal carries noise When in resistance signal source check if the input stage of the device under test contains a capacitor with an excessively large capaci tance Make sure the communication parameter set tings are correct Check if the communication mode is set to tonLy or Print The calibrator needs repair 9 1 Hbulooysajqnoi 10 Method of Calibrator Adjustment To maintain the calibrator
50. gt Response SDm lt delimiter gt Description of parameter m Sourced setpoint 7 digits ex 1 0000 SF Queries the source function winen normal condition Syntax for query SF lt delimiter gt Response SFm lt delimiter gt Description of parameter m Function m 0 30V m 1 10V m 2 1V m 3 100mV m 4 Resistance m 5 Pulse m 6 20mA m 7 4 to 20mA m 8 20mMASINK On Off of source output queries the current setting Peta tae Syntax for setting SOm lt delimiter gt Syntax for query SO lt delimiter gt Response SOm lt delimiter gt Description of parameter m Condition of generation m 0 Off m 1 On SR Sets the sourcing range queries the current When normal setting condition adjustment Syntax for setting SRm lt delimiter gt Syntax for query SR lt delimiter gt Response SRm lt delimiter gt Description of parameter m sourcing range 100mV When normal condition m 0 DC 100mV m 1 TcK m 3 TcJ m 4 TcT m 6 TcB m 7 Tes m 9 TeL m 10 TcU 100mV When adjustment m 0 DC 100mV m 1 TcK m 0 400Q m 1 Pt100 m 2 JPt m 1 1kHz _ m 2 10kHz 8 8 IM CA71 E IM CA71 E 8 7 Detailed Description of Commands modes queries the current setting condition adjustment Syntax for setting SYm lt delimiter gt Syntax for query SY lt delimiter gt Response SYm lt delimiter gt Description of parameter m Mode m 0 Normal mode m 1 Adjustment mode a sourced setpoint queries the current Whenadj
51. he key during an increase in the output causes the output to begin decreasing IM CA71 E 1 3 fd YoUMsS did Aq papiaoig Suonoun4 7 2 Auto Step Function 7 2 Auto Step Function The auto step function automatically changes the variable n of the n m output in a step by step manner as shown in the following figure when the divided output function n m is selected Sourced value reading T oes ll SOURCEON A Stepping time setpoint key operation Press ON Auto Step Operation when the default of nis set to 1 Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Press the key to turn off the calibrator Place switch 1 Sweep switch in the ON right side position By setting the position of switch 2 Speed switch set the time of one step OFF left side 2 5 sec step ON right side 5 sec step Press the key to turn on the calibrator Using the function selector switch select the function volt age current resistance thermocouple or RTD for which you want to source a signal In the case of pulse source the auto step function is disabled Set the output value Press the key The sweer indication on the LCD changes tO auto step and the n m symbol turns on IM CA71 E TIP Step 8 Step 9 Step 10 7 2 Auto Step Function Using each pair of A and J keys set the value of the de nominator m and the starting setpoint of the enumerator n See Section 4 6 D
52. he wall outlet Finally detach all lead cables from the instrument Use a dedicated carry case when transporting the instrument Do not bring any electrified object close to the input terminals since the internal circuit may be destroyed Do not apply any volatile chemical to the instrument s case or operation panel Do not leave the instrument in contact with any product made of rubber or vinyl for a prolonged period Be careful not to let a soldering iron or any other heat emitting object come into contact with the opera tion panel as the panel is made of thermoplastic resin 3 1 JUSWAINSeSWy 901NOS Hues 310439 e 3 Before Starting Source Measurement Before cleaning the instrument s case or operation panel disconnect the power cord plug from the wall outlet if you are using an AC adapter Use a soft clean cloth soaked in water and tightly squeezed to gently wipe the outer surfaces of the instrument Ingress of water into the instrument can result in malfunction If you are using an AC adapter with the instrument and will not use the instrument for a prolonged period disconnect the power cord plug from the wall outlet For handling precautions regarding the batteries see Installing or Re placing the Batteries on page 3 3 Never use the instrument with the cover of the battery holder opened E Environmental Requirements Use the instrument in locations that meet the following environmental requirements e
53. ing steps 4 to 8 you can adjust the measurement func tion assigned to that range TIP Press the key while holding down the key This key operation cancels the CAL mode You can use the same key operation to cancel the CAL mode during calibration before saving to memory 10 4 Notes on the Adjustment of Temperature Ranges CAL71 only Adjusting the temperature measuring ranges of the thermocouple func tion involves using special equipment to make reference junction com pensation adjustments For this reason contact the vender from which you purchased th instrument to perform this adjustment 10 5 Post adjustment Verification When adjustment work is done test the calibrator to ensure that adjust ments have been made correctly and adjustment setpoints have been saved into memory correctly To do this test turn off the calibrator once and turn it back on again Then place the calibrator in normal source or measurement mode and check the setpoints using the same calibration standard IM CA71 E 10 9 juawsn py J0 e1q1 eD JO popan 11 Using Accessories When attaching accessories to the calibrator refer to the following fig ure When connecting the included terminal adapter make sure the adapter is positioned in the correct orientation Terminal adapter Vpeak maximum 99021 Z WARNING 5 The allowable voltage to ground when x etic Seana the included terminal adapter is gri pg NA attached to the
54. is operated for approximately nine minutes all elements on the LCD begin to blink The calibrator gives off a buzzer sound to alert you If you still do not operate any key for another 30 seconds the calibrator automatically turns off The automatic power off feature is factory set to ON To continue using the calibrator after the LCD has begun blinking press any key other than the key The LCD stops blinking and lights steady allowing you to continue from the original status of the calibrator The automatic power off feature is disabled if the calibrator is operated on the AC adapter To disable the automatic power off feature when the calibrator is bat tery operated see Section 7 8 Disabling the Automatic Power off Feature IM CA71 E 3 Before Starting Source Measurement E Turning On Off the Backlight The LCD can be back lit Pressing the key turns on the backlight while pressing the key once again turns it off This feature makes it easier for you to view the LCD when operating the calibrator in dark places or when carrying out source or measurement Note that battery life shortens when the calibrator is operated on batteries A NOTE The backlight automatically turns off approximately one minute later To turn on the backlight again press the key once again IM CA71 E 3 JUSWINSeSWy 901NOS Hues 310439 oO 3 Before Starting Source Measurement 3 8 E Operating Environment Operating Environment
55. it in units of 1s Increasing the digit from 9 or decreasing it from O causes the digit to overflow or underflow allowing you to set the out put value without interruption Holding down the A or W key continu ously changes the digit in question If your choice is the 4 20 mA function see Section 4 2 Sourcing DC Voltage DC Current or SINK Current Signal for further details Note that A and W keys are also used in the following ways e The A and WV keys labeled n and m serve as keys for setting the variables n and m when you have selected the divided output func tion n m See Section 4 6 Divided Output Function n m for further details e The A and W keys labeled MEM NO SAVE and READ serve as keys for working with the memory when you have selected the memory function See Chapter 6 Memory Function for further details CLEAR Key Initializes the output setpoint causing the on screen reading to revert to 0000 for functions other than PULSE and 20 mA SINK though the number of digits depends on function selected This key serves as a key for clearing the memory when the memory function is selected Side and Rear Panels FUSE A holder for housing a fuse that protects the input during DC current measurement R J INPUT A connector to which the external reference junction compensation sensor is connected AC Adapter Connection Jack Battery Holder Opening the cover reveals the battery holder and DI
56. iter gt Response MFm lt delimiter gt Description of parameter m Measurement function m 0 300V AC m 1 100V m 2 10V m 3 1V m 4 100mV m 5 Resistance m 6 Frequency m 7 Current On Off of measurement queries the current setting Pai eae Syntax for setting MOm lt delimiter gt Syntax for query MO lt delimiter gt Response MOm lt delimiter gt Description of parameter m On Off condition m 0 Off Sets the measuring range queries the current When normal MR ee setting condition adjustment Syntax for setting MRm lt delimiter gt Syntax for query MR lt delimiter gt Response MRm lt delimiter gt Description of parameter m Measuring range 100V m 0 DC 10V m 0 DC 1V m 0 DC 100mV When normal condition m 0 100mV DC m 3 TcJ m 6 TcB m 9 TeL 100mV When adjustment m 0 100mV DC m 2 TcE m 4 TcT Q m 0 400 Q m 2 JPt Freq m 0 100Hz m 2 10kHz mA m 0 20mA 8 6 IM CA71 E IM CA71 E 8 7 Detailed Description of Commands When normal lue tion adi OD Outputs measured value condition adjustment Syntax for setting OD lt delimiter gt Response ODabcde lt delimiter gt Description of parameter lt Header section gt Output only when the header is set to enabled a V Voltage A Current O Resistance T Temperature F Frequency b DC Direct current AC Alternating current c N Normal O Overrange E No data lt Data section gt d Measured value mantissa part 7
57. ithout interruption Holding down the A or Y key continuously changes the digit in question Pressing the key initializes the output setpoint to the de fault value 0 Pressing the key causes the indicator on the LCD to change from B to The calibrator sources the preset DC voltage or current signal between the output terminals To turn off the output press the key once again The am appears on the LCD and the output terminals are open cir cuited 4 3 U O c O D 4 2 Sourcing DC Voltage DC Current or SINK Current Signal TIP If either of the following cases applies the protection circuit works to turn off the output e The output terminals or the lead cables for source connected to the output termi nals are short circuited or an excessive load current has flowed through the cables when a voltage is being output e The output terminals or the lead cables for source connected to the output termi nals are open circuited or an excessive load voltage has been sourced between the output terminals when a current is being output 4 2 2 4 20 mA Function You can set a 4 20 mA signal in 4 mA increments Step 1 Using the function selector switch select 4 20mA Step 2 Using each pair of and output setting keys which corre spond to each digit of a value from 4 to 20 set the signal ina step by step manner You can set the signal in 4 mA incre ments or decrements in the order 4 amp 8 amp 12 amp 16 amp 18
58. ivided Output Function n m for further details The starting setpoint is the minimum of the variable n for auto step operation Pressing the key initiates the automatic stepping of the divided output n m as described below Assuming the starting value of the variable n is 1 the output cyclically changes with the variable n as nchanges in the fol lowing manner n 1 gt 2 gt 3 gt m 1 gt m gt mM 1 9 73 2751 ek To quit the auto step function turn off the calibrator by press ing the key Place switch 1 back in the OFF left side position Note that disabling the divided output mode n m before placing switch 1 back in the OFF position enters sweep mode e Pressing the key to change to the SOURCE OFF state pauses the auto step operation e To execute the auto step function again press the key The auto step opera tion resumes from the value of n shown on the LCD IM CA71 E 7 5 YoUMsS did Aq papiaoig Suonoun4 7 3 Selecting the INT RJ Function 7 3 Selecting the INT RJ Function The INT RJ function provides reference junction compensation for thermoelectromotive force source in a simplified manner by means of the calibrator s built in temperature sensor For more precise refer ence junction compensation it is advisable that you use the optional RJ sensor P N B9108WA Step 1 Press the key to turn off the calibrator Step 2 Place switch 3 INT RJ switch in the ON right side position
59. k of the calibrator and connect the communication cable P N 91017 to the I O port Setting RS232 Parameters Baud rate 9600 baud Parity None Stop bits 2 Data length 8 bits Flow control None Xon Xoff control for printing only Delimiter Fixed to CrLf IM CA71 E 8 1 oO uoloun uonesiunwwog 8 2 Setting the Mode 8 2 Setting the Mode Step 1 Step 2 Step 3 Step 4 TIP Press the key while simultaneously holding down the key The LCD shows fan in its upper section and either nor tonl Y or Print in its lower section Using the pair of A and W keys select nar tant 4 or Print Press the key to confirm your mode selection If you set the mode to tanLY or Pri nt the LCD shows SEL H When the r n EL U is indicated each press of the key outputs one data item If you set any value using the pair of A and W keys with SEL U shown the calibrator outputs data using the value thus set as the time interval sec The value should be set within the range from O to 3600 e To close the communication setting screen press the key once again while simultaneously holding down the key e Even if you turn off the calibrator the communication mode and interval you have set are saved internally until you replace the batteries or reconfigure the communi cation function Thus communication will take place with the previous settings 8 3 Types of Mode nar Normal mode Permits normal transmission and rec
60. mplete with the ordered items and they are free from any damage For technical and ordering inquiries concerning the accesso ries contact the vendor from which you purchased the instrument Product AC adapter AC adapter AC adapter RJ sensor Accessories case Communication cable RS232 IM CA71 E Part Number A1020UP A1022UP B9108WB B9108WA B9108XA 91017 Remarks For 100 V AC For 120 V AC For 220 to 240 V AC For reference junction compensation For CA71 only Checking Items in the Package Optional Spare Parts Product Part Number Remarks Lead cable for source 98020 Lead cable for measurement RD031 Carrying case 93016 Terminal adapter 99021 Used for temperature measurement Fuse A1501EF 10 units as a kit Accessories case RJ sensor Communication cable iV IM CA71 E Precautions for Safe Use of the Instrument For the correct and safe use of the instrument be sure to follow the cautionary notes stated in this manual whenever handling the instru ment Yokogawa Meters amp Instruments Corporation shall not be held liable for any damage resulting from use of the instrument in a manner other than prescribed in the cautionary notes The following symbols are used on the instrument and in the User s Manual to ensure safe use A Danger Handle with Care This symbol indicates that the operator must refer to an explanation in the User s Manual in order to avoid the risk of injury or loss of life
61. n cancels the CAL mode the same key operation as for selecting the CAL mode You can use the same key operation to cancel the CAL mode during adjustment before saving to memory A CAUTION Precautions when adjusting the 400 Q range for resistance signal source 1 2 Internal Offset Adjustment When setting a resistance of 0 00 Q make sure the voltage between the H and L terminals is within 20 uV If the voltage is beyond the limits internal adjustments must be made Contact the vender from which you purchased the instrument Notes on Resistance measuring Current Adjusting the 400 Q range requires drawing two types of resistance mea suring current 1 mA and 5 mA from an external device Adjust the range separately for each of these currents Adjustment for 1 mA This adjustment is possible with the resistance measuring range of the calibration standard digital multimeter At this point make sure the resistance measuring current is 1 mA Adjustment for 5 mA Like the method of adjusting the 400 2 5 mA range shown in the fig ure Hook ups for Adjustment on page 10 3 you can make this ad justment by applying the reference current of 5 mA from the external device and then measuring the resulting voltage drop IM CA71 E 10 5 juawsn py 10 e1q1 eD JO popan 10 3 Adjusting Measurement Functions 10 3 Adjusting Measurement Functions Table 10 2 Adjustment Setpoints of Measurement Functions
62. nce m 5 Pulse m 6 20mA m 7 420mA m 8 20mMASINK When normal Syntax for query OMm lt delimiter gt Response abcde fghij fghij lt delimiter gt lt Header section of measured value gt a V Voltage A Current O Resistance T Temperature F Frequency b DC Direct current AC Alternating current c N Normal O Overrange E No data lt Data section of measured value gt d Measured value mantissa part 7 digits e Measured value exponent part E 3 E 0 E 3 lt Header section of sourced setpoint gt f V Voltage A Current O Resistance T Temperature F Frequency g DC Direct current AC Alternating current h N Normal E No data i Sourced setpoint mantissa part 7 digits j Sourced setpoint exponent part E 3 E 0 E 3 Description of parameter m Number of memory 1 to 50 8 10 IM CA71 E IM CA71 E 8 7 Detailed Description of Commands NM Sets divided output n m mode queries the current When normal setting condition Syntax for setting MNm lt delimiter gt Syntax for query MN lt delimiter gt Response MNm lt delimiter gt Description of parameter m n m mode m 0 Off Sets n m values in divided output n m mode queries the current setting condition Syntax for setting NDnm lt delimiter gt Syntax for query ND lt delimiter gt Response NDnm lt delimiter gt Description of parameter n n value 2 digits among numbers from 00 to 19 where n lt m m m value 2 digits among n
63. nd amp keys corresponds to each digit of the LCD reading Each press of the A or W key increases or decreases the digit Increasing the digit from 9 or decreasing it from O causes the digit to overflow or underflow allowing you to set the output value without interruption Holding down the A or Y key continuously changes the digit in question Pressing the key initializes the output setpoint to the de fault value differs depending on the frequency range Pressing the purse ser key once switches to amplitude setting mode The LCD provides a reading of hi Set the output value digit by digit using each pair of A and J output setting keys Each pair of A and amp keys corresponds to each digit of the LCD reading Each press of the A or W key increases or decreases the digit Increasing the digit from 9 or decreasing it from O causes the digit to overflow or underflow allowing you to set the output value without interruption Holding down the A or W key continuously changes the digit in question Pressing the key initializes the output setpoint to the de fault value 0 1 V Press the ruse se key once again to show cant on the LCD Then press the 4 key The source setpoint reading of the LCD changes to a numeric value which represents the num ber of pulses IM CA71 E TIP Step 7 Step 8 Step 9 4 5 Sourcing Pulse Signals Set the number of pulses value digit by digit using each pair of A and Y output setting ke
64. ng to the terminals select sf with the source range setting rotary switch Step 2 Connect the positive terminal of an external power source to the H output terminal and the negative terminal to the L output terminal Step 3 Turn on the external power source and press the key The indicator on the LCD changes from maa to The calibrator sources the preset current value of the 20 mA SINK function between the output terminals Step 4 To turn off the output press the key once again The aw appears on the LCD and the output terminals are open cir cuited 4 5 U O c D 4 2 Sourcing DC Voltage DC Current or SINK Current Signal 4 2 4 Using As 24 V Loop Power Supply A maximum load current of 22 mA can be drawn from the calibrator by selecting the 30 V range and setting the sourced voltage to 24 V With this function you can use the calibrator as a loop power supply in place of the distributor in a two wire loop as shown in the following figure Thus you can measure a 4 20 mA current signal Using the supplied terminal adapter P N 99021 makes it easy to wire the calibrator for this application A NOTE Since the function discussed above requires a significant amount of DC cur rent 22 mA operation on batteries will reduce the battery life considerably To avoid this problem operate the calibrator on the AC adapter In this applica tion no source output other than 24 V can be taken at the same time
65. o om o 20mA Seethe igure peon o0onma o 400 0 Fourwire connection ooasma o 4000 See the igure below 1 Adjust the source functions so that the readings of the calibration standard output values of the CA51 71 match the adjustment points listed above TIP e You can also select only the range in need of readjustment to adjust it separately e Always make zero point 0 adjustments together with full scale FS adjustments 20 mA output Standard resistor SINK 100 Q DMM Voltage range High precision current source 20 mA and SINK ranges 400 Q 5mA Hook ups for Adjustment Step 1 Press the key while simultaneously holding down the key The LCD shows LAL Srce Step 2 Pressing the key enters the source CAL mode The indicator blinks on the LCD and the symbol ap pears The calibrator is now ready for the zero point adjust ment of source functions Step 3 From Table 10 1 select the range you want to adjust Then point the function selector switch to that range and press the key IM CA71 E 10 3 juawsn py s0 e1q1 eD JO poyan 10 2 Adjusting source Functions Step 4 Step 5 Step 6 Step 7 Step 8 Step 9 Step 10 A NOTE Conform that the symbol is appearing on the LCD Read the calibrator output on the calibration standard Then using the lowest order pair of A and WY keys adjust the read ing so that it matches the given CAL 0 adjustment setpoin
66. of pulses counted up to the moment If the count exceeds the limit the calibrator shows the maximum number and stops counting e When counting pulses the calibrator disables the automatic power off fea ture TIP To measure contact input switch to that measurement function with the DIP switch in the battery holder For further details see Section 7 7 Selecting the Contact In Function Contact Input for Pulse Measurement IM CA71 E 5 9 JUDWSIINSPOIN oO 6 Memory Functions IM CA71 E The built in memory has the following four functions With a pair of sourced and measured signal values in a set the calibrator can handle a maximum of 50 sets of data hereinafter simply referred to as data by means of its built in memory Saving to Memory MEM SAVE You can save data to memory Reading from Memory MEM READ You can show data in memory on the LCD When data is being read from memory the source output remains turned off Thus you cannot do any source task using data stored in memory Clearing Memory MEM CLEAR You can clear data stored in memory Sending Data from Memory CA71 only You can send data in memory to an external personal computer using the communication function This function requires use of the optional RS232 communication cable P N 91017 For further details see Chapter 8 Communication Function Keys and labels related to memory function 6 1 o suolpun
67. onds to each digit of the LCD reading Each press of the A or W key increases or decreases the digit Increasing the digit from 9 or decreasing it from O causes the digit to overflow or underflow allowing you to set the output value without interruption Holding down the A or Y key continuously changes the digit in question Pressing the key initializes the output setpoint to the de fault value 0 1 V Press the rutse s key once again to show cant on the LCD Then press the euse se7 key one more time to revert to fre quency setting mode Pressing the key causes the indicator on the LCD to change from B to The calibrator sources a continu ous pulse train with the preset frequency and amplitude be tween the output terminals To turn off the output press the key once again The aa symbol appears on the LCD and the output terminals are open circuited the rurse ser key Then change the frequency range using the key IM CA71 E 4 13 U O c O D 4 5 Sourcing Pulse Signals 4 5 2 Sourcing the Preset Number of Pulses Pulse Cycle Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Using the function selector switch select PULSE The LCD shows the default frequency uz Using the key set the frequency range Each press of the key cycles through the 500 0 Hz 1000 Hz and 10 kHz options Set the output value digit by digit using each pair of A and Y output setting keys Each pair of A a
68. pproximately 7 VA using 100 V AC adapter Approximately 10 minutes auto power off can be disabled through a DIP switch setting EN61326 1 1997 A1 1998 EN55011 1998 Class B Group 1 DC 50 MQ or greater kVAC for one minute K suonesijoads 12 3 12 Specifications External dimensions WHD Weight Standard accessories Optional accessories sold separately Spare parts Safety standards EMC Approximately 190 x 120 x 55 mm Approximately 730 g including batteries All of the following are included Lead cables for source one red two black 98020 Lead cables for measurement one red one black RDO31 Carrying case 93016 Terminal adapter for CA71 99021 User s manual IM CA71 E Fuse A1501EF for current terminal input protection Four AA size LR6 alkaline batteries A1070EB x 4 AC adapter A1020UP 100 V AC power supply AC adapter A1022UP 120 V AC power supply AC adapter B9108WB 220 240 V AC power supply RJ sensor B9108WA For reference junction compensation Accessory carrying case B9108XA Communication cable 91017 Lead cables for source one red two black 98020 Lead cables for measurement one red one black RDO31 Carrying case 93016 Terminal adapter 99021 Fuse A1501EF for current terminal input protection gt EN61010 1 EN61010 2 031 Class Il Measurement category III 8300Vrms max Pollution degree 2 EN61326 Class B EN6100
69. pyright 2002 Yokogawa M amp C Corporation IM CA71 E i Checking Items in the Package After opening the package check the product as follows before use If the delivered product is the wrong model any item is missing or there are visible defects contact the vendor from which you purchased the product Main Unit Check the model specifications codes in the MODEL and SUFFIX fields of the nameplate at the back of the instrument to ensure that the instrument is exactly as specified in your purchase order CA71 Sapan NOU Yokogawa Gorporation e Model Codes Model Specification CA51 Basic model CA71 Provided with temperature measurement and communication functions e NO Serial Number Refer to this serial number on the nameplate when contacting the ven dor about the instrument IM CA71 E Standard Accessories Checking Items in the Package Make sure that the package contains all the accessories listed below and that they are all free from any damage Lead cables Lead cables for Carrying case Fuse for source measurement 93016 A1501EF 98020 RDO31 Terminal adapter 99021 Optional Accessories AA size LR6 alkaline batteries four units ne S g Dy CY User s manual IM CA71 E The products listed below are available as optional accessories If you purchased some of the optional accessories make sure the delivered package is co
70. r Step 4 After replacement reattach the battery holder cover Indication of Battery Level The battery replacement indicator shows the battery level in three steps according to the measured voltage of the batteries waa lit constantly The battery level is normal way lit constantly The battery level is below 50 full but still allows for normal operation a flashing Replace the batteries Note that the battery replacement indicator is driven by directly mea suring the battery voltage when the calibrator is in actual operation Consequently the indicator may read differently depending on the bat tery load condition e g the load condition of the source output or on off state of the measurement function if the batteries are too low IM CA71 E IM CA71 E 3 3 Before Starting Source Measurement If the calibrator will be used under a wide variety of conditions it is advisable that the battery replacement indicator be verified under heavy loads MEASURE mode is on and the SOURCE mode is set to the 20 mA 10 V output E Connecting the AC Adapter A WARNING Make sure the voltage of the AC power source matches the rated supply voltage of the AC adapter before connecting the AC adapter to the AC power source Do not use any AC adapter other than the dedicated AC adapter from Yokogawa M amp C Corporation Step 1 Make sure the calibrator is turned off Step 2 Insert
71. re common to all of the source functions 12 Function Selector Switch Selects a source function and its range 13 RANGE Key Used to further select from range options within the selected function e If you have selected the 100 mV TC range use this key to select the voltage output or the type of thermocouple as the key cycles through the 100 mV K E J T R B S N L and U options e If you have selected the 400 Q RTD range use this key to select the resistance range or the type of RTD as the key cycles through the 400 Q Pt100 and JPt100 options e If you have selected the PULSE range use this key to select the frequency range as the key cycles through the 500 0 Hz 1000 Hz and 10 kHz options 14 SOURCE ON Key Turns on off the source output 15 PULSE SET Key If you have selected the PULSE range use this key to cycle through the frequency amplitude and pulse count options for pulses being gen erated 16 TEMP Key Allows you to monitor temperature by selecting from the room tempera ture C reference junction temperature C thermocouple mV and RTD Q options IM CA71 E 2 3 Sed JO SuO OUN pue SoweN Di 2 Names and Functions of Parts 2 4 17 n m Key Turns on off the divided output function n m 18 A and V Output Setting Keys 19 20 21 22 23 Set the output value of a source function Each pair of A and W keys corresponds to each digit of the reading thus increasing decreasing the dig
72. rrent setting condition Syntax for setting BLm lt delimiter gt Syntax for query BL lt delimiter gt gt Response BLm lt delimiter gt Description of parameter m 0 Off m 1 On DW Moves down the m th digit of the sourced setpoint When normal by one digit condition Syntax for setting DWm lt delimiter gt Description of parameter m Specifies a digit 1 the lowest digit to 5 the highest digit UP Moves up the m4h digit of the sourced setpoint by When normal one digit condition Syntax for setting UPm lt delimiter gt Description of parameter m Specifies a digit 1 the lowest digit to 5 the highest digit H Enables Disables the output data header queries the When normal current setting condition adjustment Syntax for setting Hm lt delimiter gt Syntax for query H lt delimiter gt gt Response Hm lt delimiter gt For details on the header see the OD command Description of parameter m Enables Disables the header m 0 Disabled m 1 Enabled HD Enables Disables data hold mode queries the current When normal setting condition Syntax for setting HDm lt delimiter gt Syntax for query HD lt delimiter gt gt Response HDm delimiter Description of parameter m Specifies data hold m 0 Hold Off m 1 Hold On oO uoljoun uonesiunwwog 8 5 8 7 Detailed Description of Commands MF Queries the measurement function When miotal condition Syntax for query MF lt delim
73. s are made automatically within the calibrator so that the LCD reading matches the adjustment setpoint in question given in the table with reference to the input applied as described above Therefore you need not make any range adjustment with A and W keys e Saving the adjustment setpoint results in the overwriting of existing data Be extremely careful since the previous adjustment setpoints are cleared Step 7 The 44 symbol stops blinking causing the calibrator to return to the state discussed in step 4 Using the function selector switch select the next range By repeating steps 4 to 6 you can adjust the measurement function assigned to that range TIP Press the key while holding down the key This key operation cancels the CAL mode You can use the same key operation to cancel the CAL mode during calibration before saving to memory When adjusting DC current range using the key change DC 20 mA gt DC 100 mA IM CA71 E 10 7 juawsn py J0 e1q1 eD JO poyan 10 3 Adjusting Measurement Functions 10 3 2 Adjusting AC Voltage and Resistance 400 Q Ranges Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 A NOTE Press the key while simultaneously holding down the key The LCD shows LAL Sre Pressing the highest order A key causes the LCD to show CAL AcAS Pressing the key enters the measurement CAL mode The indicator blinks on the LCD and the symbol appears
74. selected thermo couple The thermoelectromotive force is sourced with reference to 0 C Step 1 Step 2 Step 3 Step 4 Step 5 Using the function selector switch select 100m TC Using the key select the type of thermocouple Select the type from K J E T R B S N L and U The selected type of thermocouple is shown on the LCD Set the output value digit by digit using each pair of A and Y output setting keys Each pair of A and amp keys corresponds to each digit of the LCD reading Each press of the A or W key increases or decreases the digit Increasing the digit from 9 or decreasing it from O causes the digit to overflow or underflow allowing you to set the output value without interruption Holding down the A or Y key continuously changes the digit in question Pressing the key initializes the output setpoint to the de fault value 600 C for a type B thermocouple Pressing the key causes the indicator on the LCD to change from gaa to ay A thermoelectromotive force mV equivalent to the preset temperature develops between the output terminals To turn off the output press the key once again The am appears on the LCD and the output terminals are open cir cuited 4 5 Sourcing Pulse Signals 4 5 Sourcing Pulse Signals 4 5 1 You can source a preset type of continuous pulse train a pulse signal with a preset frequency or the preset number of pulses Amplitude setpoint Frequency based
75. t in Table 10 1 In the CAL mode the lowest order pair of 4 and W keys are used to increase or decrease the least significant two digits including the auxiliary digit Adjust the value mea sured with the calibration standard to the given adjustment setpoint in Table 10 1 Press the key to confirm the CAL 0 adjustment setpoint The CAL indicator on the LCD changes to s setting the cali brator ready for full scale adjustment Using the lowest order pair of A and keys adjust the reading of the calibration standard so that it matches the given CAL FS adjustment setpoint in Table 10 1 Press the key to confirm the CAL FS adjustment setpoint The 0 and FS A Hl symbols on the LCD blink I Pressing the 9 once again saves the ett adjustment setpoint in memory The 0 and FS symbols stop blinking causing the calibrator to return to the state discussed in step 4 Using the function selector switch select the next range By repeating steps 4 to 9 you can adjust the source function assigned to that range e Saving to memory results in the overwriting of existing data Be extremely careful since the previous adjustment setpoints are cleared e Both the thermocouple and RTD ranges are adjusted at the same time when the 100 mV and 400 Q ranges are adjusted 10 4 IM CA71 E TIP 10 2 Adjusting source Functions With the CAL mode selected press the key while holding down the key This key operatio
76. t out the LCD shows the ho symbol IM CA71 E 5 7 yu wW InNsSedN Ka 5 5 Measuring Frequency or Pulses 5 5 Measuring Frequency or Pulses 5 5 1 5 5 2 5 8 Operating the Calibrator for Frequency Measure ment Step 1 Using the function selector switch select FREQ 30Vmax Step 2 Using the key select 100 Hz 1000 Hz or 10 kHz Pressing the key cycles through the 100 Hz 1000 Hz 10 kHz CPM and CPH options Note however that the range reading of the LCD is given as shown below when no signal is present LCD Reading 1000Hz Operating the Calibrator for Measuring Number of Pulses The CPM option in this measurement counts pulses per minute while the CPH option counts pulses per hour Step 1 Using the function selector switch select FREQ 30Vmax Step 2 Using the key select either CPM or CPH Pressing the key cycles through the 100 Hz 1000 Hz 10 kHz CPM and CPH options Step 3 The indicator turns on and the calibrator goes into a standby for counting state The calibrator begins counting pulses the moment the key is pressed to cancel the hold state IM CA71 E 5 5 Measuring Frequency or Pulses A NOTE If you press the key after the completion of counting while the indicator is lit the calibrator restarts counting from 0 If you press the key halfway before the selected time one minute or one hour expires the calibrator stops counting at that moment The LCD shows the number
77. terminal and the black lead cable to the L input terminal Step 2 Connect the two clips of the cables to the measuring termi nals of equipment under test while making sure the polarities are correct For thermocouple signal CA71 only Step 1 Connect the terminal adapter P N 99021 to the input termi nals This will help you connect the cables easily Step 2 Connect between TC RTD terminals The positive output leadwire of the thermocouple to the H terminal of the terminal adapter and the negative output leadwire to the L terminal For RTD signal CA71 only Step 1 When using the terminal adapter P N 99021 connect the H L and L terminals of the terminal adapter to the H Land mA terminals of the three wire input terminal block of the calibra tor respectively Step 2 Connect the A B and B output leadwires of the RTD to the H L and L terminals of the terminal adapter respectively 5 2 IM CA71 E 5 1 Connecting Cables to Terminals A CAUTION e Before connecting the calibrator to the device under test cut off the power to the device e Do not apply any voltage or current exceeding the allowable voltage 300 V or current 120 mA Otherwise there will be a danger of not only damage to the instrument but also personal injury due to electrical shock e Mistaking the H voltage input terminal for the mA current input terminal and vice versa when wiring is extremely dangerous NEVER make this mistake e The
78. the key once again The a appears on the LCD and the output terminals are open cir cuited A NOTE e The contact has polarities Always connect the positive side to the H output terminal of the calibrator and the negative side to the L output terminal Exercise the utmost care not to allow the contact current to exceed 50 mA IM CA71 E 4 17 4 6 Divided Output Function n m 4 6 Divided Output Function n m The divided output function n m outputs a value n m times the setpoint of a voltage current resistance thermocouple or RTD signal Thus the output value is defined as Output value Main setpoint x n m 4 18 Keys and labels related to divided output function n m For details on how to set the sourced signal level of each range see Sections 4 2 Sourcing DC Voltage DC Current or SINK Current Sig nal to 4 4 Sourcing Thermocouple TC Signal Follow the steps shown below with the calibrator output turned off Step 1 Step 2 Step 3 Step 4 Step 5 When the setting of the sourced signal level of each range is complete follow step 2 and later steps Using each pair of A or keys set the main setpoint Press the key to enter the divided output n m mode The LCD shows nm 7 i The higher order two digits repre sents the value of n and the lower order two digits the value of m Using a pair of A or amp keys set the value of m The variable mcan be set to a value
79. the plug of the optional AC adapter into the AC adapter connection jack E Turning On Off the Power Turning On Off the POWER Switch e Pressing the key once when the power is off turns on the calibrator Pressing the key once again turns off the calibrator A NOTE Before disconnecting the AC adapter from an AC power source turn off the calibrator by pressing the key A NOTE When operating the calibrator on batteries disconnect the AC adapter plug from the instrument Once you connect the AC adapter plug to the instrument the instrument no longer operates on batteries Thus the instrument will not turn on unless the AC adapter is connected to an AC power source O1 JUSWAINSeSWy 901NOS Hues 310439 oO 3 Before Starting Source Measurement Turning On Off MEASURE Mode TIP Pressing the measure or key after power on turns off the MEASURE mode e If the MEASURE mode is not needed and therefore turned off power to the measurement circuit is also turned off within the cali brator Thus you can save on battery power if the calibrator is running on batteries e Turning off the MEASURE mode causes the on screen measured value to disappear e To resume measurement when the MEASURE mode is off press the measure or Key Once again One to two seconds are taken for the LCD to turn on after the MEASURE mode is turned on 3 6 Automatic Power off When the calibrator is running on batteries and no key
80. tions e If you have selected the FREQ range use this key to select the range of frequency measurement as the key cycles through the 100 Hz 1 kHz 10 kHz CPM and CPH options e If you have selected the mA range use this key to select from the 20 mA and 100 mA ranges e If you have selected the 100 mV TC range use this key to select the voltage range or the type of thermocouple as the key cycles through the 100 mV K E J T R B S N L and U options CA71 only e If you have selected the Q RTD range use this key to select the resistance range or the type of RTD as the key cycles through the 400 Q Pt100 and JPt100 options CA71 only If you have selected the TC or RTD range in the source mode of display the TC or RTD type options on the SOURCE function side precede those on the MEASURE mode side IM CA71 E 2 Names and Functions of Parts 8 MEASURE OFF Key Turns on off the MEASURE mode Turning off the mode causes the measured value shown on the LCD to disappear If the MEASURE mode is not in use and therefore turned off the power to the measure ment circuit within the calibrator is also turned off This strategy saves on battery power if the calibrator is running on batteries 9 HOLD Key Holds the measured value being displayed Also used to start CPM or CPH measurement or communication 10 MEM Key Used to turn on off the memory function SOURCE Mode Functions for Generation 11 Output Terminals These terminals a
81. to overflow or underflow allowing you to set the output value without interruption Holding down the A or W key continuously changes the digit in question Pressing the key initializes the output setpoint to the de fault value 600 C for a type B thermocouple 4 9 U O c D 4 4 Sourcing Thermocouple TC Signals Step 6 Pressing the key causes the indicator on the LCD to change from aaa to A thermoelectromotive force based on the temperature detected by the RJ sensor develops be tween the output terminals Step 7 To turn off the output press the key once again The am appears on the LCD and the output terminals are open cir cuited A NOTE e When you have attached the RJ sensor to the device being calibrated wait until the detected temperature stabilizes before you begin using the calibra tor e If no reference junction compensation is required be sure to remove the RJ sensor from the calibrator TIP As a means of easily providing reference junction compensation without using any external RJ sensor you can use the temperature sensor within the calibrator For further details on how to work the temperature sensor see Section 7 3 Selecting the INT RJ Function 4 10 IM CA71 E 4 4 2 IM CA71 E 4 4 Sourcing Thermocouple TC Signals When No RJ Sensor Is Used From the output terminals the calibrator sources a thermoelectromotive force corresponding to the preset temperature of a
82. tput terminal 3 7 0 50 C 20 80 RH no condensation 20 50 C 90 RH or less no condensation Approximately 1 second time between start of voltage change and when voltage enters accuracy range Approximately 32 V Approximately 25 mA Output setting x n m n 0 m m 1 19 n lt m n value sent automatically when n m function selection is selected two options approximately 2 5 seconds step or approximately 5 seconds step Sweep time two options approximately 16 seconds or approximately 32 seconds 50 value sets sourced and measured values are stored as value sets with the same address up to 50 value sets can be stored Voltage terminal 300 V AC Current terminal 120 mA DC Fuses 125 mA 250 V Maximum 300 V AC Approximately once per second Enabled when communication cable RS232 is connected sold separately as optional accessory CA71 only Segmented LCD approximately 76 mm x 48 mm LED backlight auto off after one minute from when LIGHT key is turned on Four AA size LR6 alkaline batteries or special AC adapter sold separately Measurement off output 5 V DC 10 KQ or greater Approximately 40 hours Simultaneous signal source measurement output 5 V DC 10 kQ or greater Approximately 20 hours Simultaneous signal source measurement output 20 mA 5 V Approximately 12 hours using alkaline batteries with backlight off A
83. u ous pulse trains Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Using the function selector switch select PULSE The LCD shows the default frequency uz Using the key set the frequency range Each press of the key cycles through the 500 0 Hz 1000 Hz and 10 kHz options Set the output value digit by digit using each pair of A and J output setting keys Each pair of A and amp keys corresponds to each digit of the LCD reading Each press of the A or W key increases or decreases the digit Increasing the digit from 9 or decreasing it from O causes the digit to overflow or underflow allowing you to set the output value without interruption Holding down the A or amp key continuously changes the digit in question Pressing the key initializes the output setpoint to the de fault value differs depending on the frequency range Pressing the purse ser key once switches to amplitude setting mode The LCD provides a reading of liv mii miri Changing the reading of tiv to utv with the UJ key causes the calibrator to enter contact output mode Press the euse s key once again to show cont on the LCD Then press the ruse se key one more time to revert to fre quency setting mode IM CA71 E 4 5 Sourcing Pulse Signals Step 7 Pressing the key causes the indicator on the LCD to change from aa to The output terminals turn on and off at the preset frequency Step 8 To turn off the output press
84. umbers from 01 to 19 where n lt m Sets the temperature monitor display for sourced TC RTD range queries the current setting a TC RTD mode only epnetton Syntax for setting TEm lt delimiter gt Syntax for query TE lt delimiter gt Response TEm lt delimiter gt Description of parameter m Condition of display m 0 Value of temperature m 1 Value of equivalent voltage resistance m 2 Reference junction temperature PU Sets the display for source pulse range queries When normal the current setting condition Syntax for setting PUm lt delimiter gt Syntax for query PU lt delimiter gt Response PUm lt delimiter gt Description of parameter m Condition of display m 0 Frequency m 1 Pulse width m 2 Pulse number When normal k uoljoun uonesiunwwog Troubleshooting E Failure Checklist Troubleshoot the cause of any problem using the following checklist Should the problem persist even if you have taken the given corrective action or if you notice any problem not listed herein contact the vender from which you purchased the instrument Problem Corrective Action The LCD shows nothing even if When the calibrator is operated on batteries the POWER switch is turned on The LCD shows everything except for the measured value The SOURCE indicator remains set to OFF even if the SOURCE ON key is operated for signal source The output cannot be turned on for signal source or no signal is output
85. usinent Syntax for setting CDm lt delimiter gt Syntax for query DC lt delimiter gt Response DCm lt delimiter gt Description of parameter m Sourced setpoint 8 digits ex 1 00003 fie adjustment item queries the current When adjustment Syntax for setting CLm lt delimiter gt Syntax for query CL lt delimiter gt __ gt _ Response CLm lt delimiter gt Description of parameter m Adjustment item m 3 Adjustment of source m 4 Adjustment of measurement Sets the adjustment point When adjustment Syntax for setting CPm lt delimiter gt Description of parameter m Adjustment point m 0 FS adjustment m 1 Zero adjustment Saves the adjusted data When adjustment Syntax for setting CW lt delimiter gt Be sure to execute CW command after adjustment for each function range Without executing CW command the adjusted value will be deleted when the power is turned off oO uoljoun uonesiunwwog 8 9 8 7 Detailed Description of Commands Queries the measurement function When adjustment Syntax for query CMF lt delimiter gt Response CMFm lt delimiter gt Description of parameter m Measurement function m 0 AC 300V m 1 100V m 2 10V m 3 1V m 4 100mV m 5 Resistance m 6 Frequency m 7 Current Queries the source function When adjustment Syntax for query CSF lt delimiter gt Response CSFm lt delimiter gt Description of parameter m Function m 0 30V m 1 10V m 2 1V m 3 100mV m 4 Resista
86. ve force is being sourced The thermoelectromotive force output when this indicator is off represents the 0 C based output 2 6 IM CA71 E 3 Before Starting Source Measurement E Operating Precautions Precautions for Safe Use of the Instrument When using the instrument for the first time be sure to read the instruc tions given on pages iv and v of the section Precautions for Safe Use of the Instrument Do not open the instrument s case Opening the case is extremely hazardous as the instrument contains high voltage parts Contact the vendor from which you purchased the instrument for a service of inspecting or adjusting the internal assem bly In case of failure Should the instrument begin to emit smoke give off an unusual odor or show any other anomaly immediately turn off the POWER key If you are using an AC adapter disconnect the plug from the wall outlet Also cut off power to the object under test that is connected to the input terminals Then contact the vendor from which you purchased the instrument AC adapter Use an AC adapter dedicated to the instrument Avoid placing any load on the AC adapter or prevent any heat emitting object from coming into contact with the adapter General Handling Precautions IM CA71 E Before carrying around the instrument turn off power to the object un der test and then the POWER key of the instrument If you are using an AC adapter disconnect the power cord from t
87. ves the sourced and measured currently on display signal values at that moment into the area with the selected memory number address To cancel the memory mode saving reading press the key one more time Executing the MEM SAVE function automatically cancels the memory mode 6 1 3 Overwriting Data in Memory Step 1 Step 2 Step 3 Step 4 6 4 Press the 7 key Using the pair of memno A GJ key select the desired memory number address Press the save 4 key The LCD shows r FLALE to alert you Pressing the save 4 key once again overwrites the data in that memory number Alarm indication for memory overwriting IM CA71 E A NOTE 6 1 Saving Data into Memory e To stop overwriting the data press the key one time This cancels sav ing data reverting to the original state of being able to save read data to from memory TIP To cancel the memory mode saving reading press the key one more time Executing the MEM SAVE function automatically cancels the memory mode 6 2 Reading Data from Memory Step 1 Step 2 Step 3 TIP Press the key once The LCD shows MEM No xx At this point the MEM No indicator shows a memory number imme diately following the one most recently used to save data Memory is ready for data saving Pressing the reap WY key causes the on screen reap indication to blink indicating the calibrator is reading from memory Using the pair of
88. y Aow N 6 1 Saving Data into Memory 6 1 Saving Data into Memory 6 1 1 Saving Data in the Order of Memory Numbers 6 2 Step 1 Step 2 Step 3 Step 4 TIP Press the key The memno indicator on the LCD turns on At this point the indicator shows a memory number immedi ately following the one most recently used to save data Pressing the save 4 key saves the sourced and measured currently on display signal values at that moment into the area with that memory number address Executing the MEM SAVE function cancels the state of selecting memory reverting to normal setting mode To save the next data item into the area with the next memory number press the key once again Now the MEM No indicator shows a memory number one count larger than the previous one Pressing the save 4 key saves the sourced and measured currently on display signal values at that moment into the area with that memory number address the previous memory number address 1 To cancel the memory mode saving reading press the key one more time Executing the MEM SAVE function automatically cancels the memory mode IM CA71 E 6 1 Saving Data into Memory ndicates the memory number with which data is already saved lt All these are not yet used gt l mae 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 49 50 MEM No 07 Indication when selected These Z not A used All _ are not ie used Case Il 01
89. ys Each press of the A or VJ key increases or decreases the digit Increasing the digit from 9 or decreasing it from 0 causes the digit to overflow or under flow allowing you to set the output value without interruption Holding down the A or W key continuously changes the digit in question Pressing the key initializes the output setpoint to the default cant thus reverting to the mode of sourcing continuous pulse trains Pressing the key causes the indicator on the LCD to change from B to The calibrator sources the preset number of pulses with the preset frequency and amplitude between the output terminals When source is complete the calibrator automatically turns off the output and ceases operation The B appears on the LCD and the output terminals are open circuited To stop sourcing pulses halfway press the key when pulse output Is in progress The i appears on the LCD and the output terminals are open circuited IM CA71 E 4 15 4 5 Sourcing Pulse Signals 4 5 3 4 16 Using the Contact Output You can turn on or off the output terminals This setting is possible for both the mode of sourcing a continuous pulse train and the mode of sourcing a given number of pulses An FET is used as the contact switching device Since the way of using the contact output is the same for both the source of continuous pulse trains and the source of a num ber of pulses this subsection only refers to the procedure for contin

IM CA71-E - Yokogawa

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