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1. Calib ltem Standard Input Accuracy Recommend Equipment Range DCV 10V Digital meter Max 11v 10ppm 50uv 1281 FLUKE or equivalent DCA 20mA Digital meter Max 22mA 50ppm 0 4yA 8 2 Ambient Condition for Calibration Ambient temperature Relative humidity Warming up 23C 17 45 to 75 RH Standard equipment must be warmed up to the given time Do not connect the calibrator to the power supply until it has been exposed to the calibrating ambient condition for 24 hours Then set the calibrator to a non automatic power off state followed by warming it up to half an hour Note Power supply for calibration During the calibration it is good practice to replace the old battery with a new alkaline one 8 3 Operation Output Calibration Operating calibration in order of items and calibration points in the following table Item No Output Range Calib Point 1 DCV 10V O FS OFS 2 DCA 20mA O FS 8 3 1 Calibrating 10V range 1 The calibration wiring diagram is shown in the following diagram digital meter1281 GUARD UptmA s XTT Va 0 0 0 Eo sLooP aie Hi Lo 2 First press the two keys VWmA and mA simultaneously and then press the key POWER to enter the calibrator in a state of calibrating 10V output when the symbols OUTPUT CAL 0 ON and the unit V appear in the display 3 Set the digital meter to a corr2. VOLTAGE mA SOURCE V mA function select key LCD display area lt P output digit select key Zero FS points Setting ke ae A V output value setting key 25 of single AN X S N step setting key x ie Ca output terminals OUTPUT 0 FS 00008 0 0 00 A A A A V a OUTPUT When this symbol appears in the display it denotes OFF the calibrator in an output state When this symbol appears in the display it denotes the calibrator in a calibration state This symbol appears when the calibrator is in a state of calibration denoting that the zero point or the full scale point is now in calibration When this symbol appears it denotes that the battery is nearly used up and needs replacing now When this symbol appears it denotes that the output digits need setting These symbols denote the individual units of current output values These symbols denote that the output signal is turned on or off 3 Replacing the battery Z N Warning The test leads must be removed and the power supply of the calibrator must be shut down prior to replacing the battery If the symbol lappears in the display it denotes that the battery is nearly used up and needs replacing according to the following steps 1 Remove the test leads and shut down power supply of the calibrator 2 Remove the holster from the calibrator Op
3. to enter the calibrator in a maintenance state when the symbol AP XX appears in the display Press the key W when the symbol AP OF appears in the display denoting that there is no automatic power off function available to the calibrator When the symbol AP ON appears in the display the calibrator recovers its automatic power off function 4 Turn off the power supply again to exit the maintenance state 7 Performance Capabilities Output Function amp Specification applicable to temperature range from 18 Cto 28 C within one year after calibration Output Output Range P Resolution Accuracy Remark Range 0 05 of Max output 0 000 DCV 10V 1mV set value current 2 mA to 11 000V 2mV 0 05 of Max load 0 000 DCA 20mA 0 001mA set value 1k2 at 20mA to 2 000mA 4uA note 1 Analog 0 05 of Max load transmitter 0 000 set value 1k2 at20mA 20mA 0 001mA absorb to 22 000mA 4uA current Loop 10 Max output 24V power current 25mA Notes 1 When the battery voltage exceeds 6 8V the maximum load is 1K2 at 20mA When its voltage lies between 5 8V and 6 8V the maximum load is 7002 at 20mA 2 Temperature coefficient 0 005 of range per C for the temperature ranges 5 C to 18 C and 28 C to 50 General Specifications Power supply Battery life Max permitted voltage Operating temperature Operating relative humidity
4. Storage temperature Storage humidity Size Weight Accessories Option Safety 8 Calibration Note 9V battery ANSI NFDA 1604A or IEC 6LR619V alkaline ca 12 hours under the condition of 10mA 30V between any two terminals or between any terminal and earth ground 0 C to 50 C lt 80 RH lt 10 C to 55 C lt 90 RH 200 X 100 X 40 mm with holster 550g with holster operation instruction a set of CF 36 industrial test lead with alligator clips attached to probes AC power supply adapter VCPS industrial test lead CF 31 A with probe clips Certified as compliant to IEC1010 provisions Safety standard issued by International Electrotechnical Commission In order to keep the designed accuracy of the calibrator it is recommendable to calibrate your calibrator once a year The following example shows the use of recommended standard equipment to perform the calibration During the operation never apply more than maximum permitted voltage to the output terminal of the calibrator otherwise the overvoltage will lead to possible damage to the output section During the operation avoid short circuit and never apply more than the maximum permitted voltage to the output of the calibrator or to a coworking standard device otherwise any maloperation will cause possible damage to their internal circuits 8 1 Selecting Standard Equipment Calibrating Output Characteristics
5. displaying the unit mA Press the key mA 100 to display the symbols r and 0 FS Press the key mA _ to select the output to be set in a certain value of mA or mA followed by displaying the unit mA or mA Press the key A V which can change the output in a value of 100 where 0 denotes 4mA and 100 denotes 20mA Now press the key mA 100 again to exit the step current output 6 Press the key ON OFF to turn on off the output followed by displaying the symbol ON or OFF 5 5 Simulating Transmitter output absorption current 1 Insert one end of the test lead into the XMT output jack of the calibrator and connect the other end to the input of the user s instrument and the power supply as shown in the following diagram 2 The key operation is the same as that of DC current output in subsection 5 2 rma XMT r V 4 LAN MAN PAN MAA Note Range of power supply 5 to 25VDC During the operation at the current output try your best to use an external 24VDC power source in a mode of connection with a transmitter thus being able to prolong the battery life 6 Other Features The following operation can change the automatic power off function of the calibrator 1 Turn off the power supply of the calibrator 2 Press the key POWER when the full screen appears in the display Now release the POWER key and immediately press the key mA
6. prevent the user and the calibrator from any electric shock and other hazards it is necessary to observe the following regulations N Warning Caution Do not operate the calibrator at the working field where there exists flammable gas or explosive gas or vapor It is very dangerous to operate the calibrator in such a surrounding Never apply more than 30V between any two terminals or between any terminal and earth ground Disassembly No one is allowed to remove the split case top amp bottom of the calibrator except professionals In use The calibrator can t perform both input and output simultaneously No direct connection can be made between both input and output Maintenance Periodically wipe the case with a damp cloth and detergent do not use any corrosive solvents Note To keep the calibrator in a designed accuracy it needs warming up 5 minutes before it is put into use lf the calibrator is not in use it is recommended to shut down the power supply or keep it in an off state In such a way the battery can prolong its life greatly During the operation of the output current do your best to adopt external 24VDC power supply and use the mode of connecting a transmitter which can prolong the battery life greatly Ifthe user requires a higher accuracy of the calibrator he should make contact with our manufacturer 2 Instrument Panel Layout and Function Je
7. Operation Instruction for Voltage mA Source Sana rYN Safety Information ccccceeeeceeeeeeeeeeeeeeeeeneeeeeenseseeeneenes 1 Instrument Panel Layout and Function 2 0 ceeseeeeeees 3 Replacing the Battery cescsceeeeeeeeeeeeeeeeeneneeeeeeeeeeeens 4 Power on off of Calibrator ceceseeeeeeeeeeeeeeeeeeeeeneneeees 5 Output from Calibrator ccccccceceeeeeee eee eeseeeeeseneeenseeeenseneeD Other Features i cere nienia naa seneecdevenectene 9 Performance Capabilities cccsceseeeeeeeeeeeeeeeereeeneee 9 Calibration sree sce vecieuieiecs fence dick aaa are ikana 11 Points for Attention to Use of Operation Instruction 14 1 Safety Information To ensure the safety operation the following signs are used only as specified in this operation instruction NWarning Caution Note A warning shows that if the operation does not comply with the following correct instruction it is possible to bring hazards to the user or cause damage to the calibrator in use The warning also points out how to avoid the accidents A caution shows that if the operation does not comply with the following correct instruction it is possible to cause damage to the calibrator in use The caution also points out how to avoid maloperation A note serves as sign to remind the user that he must understand the correct operation of the calibrator and its characteristics To
8. en the battery cover 3 4 at the back of the calibrator by releasing the lock in the indicated direction Replace the used up battery with a new one Put the battery cover back and lock it in the indicated direction Put the holster back onto the calibrator 4 Power On Off of Calibrator 4 1 Power key Operation Press the power key to turn on the power supply of the calibrator Then press it again to hold it in one second and the power will be off When the power is turned on the calibrator starts to make self diagnosis internally and the full screen is in display After this appropriate operation should be carried out Note Power on To ensure the correct operation of the calibrator with power on It is good practice to turn off the power supply pausing 5 seconds and then restart the calibration 4 2 Automatic power off By the shipping time the calibrator is set in the factory like this In case there is no operation of the calibrator within a period of 10 minutes after power on it will cut off the power supply automatically However users can decide whether they want to use the function of the automatic power off or not The setting can also be done by themselves See section 6 5 Output from calibrator The appropriate output terminal of the calibrator produces the DC voltage and current set by the user or simulating a transmitter Caution During the operation do not apply voltage to the output term
9. esponding range 4 With the output stabilized operate the keys lt P and A WY to set the indication of the calibrator in identity with the reading of the digital meter 5 Press the key mA 25 to start flashing in the display Note denoting the calibrated point has been stored Press the key mA and the display will indicate the symbol ICAU FS With the output stabilized repeat the steps 4 and 5 Now press the key mA again and the display will indicate the symbol CAL 0 FS With the output stabilized repeat the steps 4 and 5 Calibration storage Press the key 25 to store the calibrated point when the display does not start flashing denoting that the calibration storage is invalid 8 3 2 Calibrating 20mA range 1 The calibration wiring is shown in the following diagram digital meter 1281 ptmA XMT T V 4 YOOP Press the key V mA to enter the calibrator in a state of 20mA output calibration and then the symbols OUTPUT CAL 0 ON and the unit mA appear in the display Repeat the steps from 3 to 6 in subsection 8 3 1 Turn off the power supply again to exit the calibration state 9 Points for Attention to Use of Operation Instruction The present operation instruction is subject to change without notice The content of the operation instruction is regarded as correct When
10. ever any user finds its mistakes omission etc he or she is requested to make contact with the manufacturer The present manufacturer is not liable for any accident and hazard arising from any maloperation The functions described in this operation instruction should not be used as grounds to apply this product to a particular purpose MB 0004 01
11. function and dis obeu play the unit mA 3 Press the key mA to select the output to be set in mA or and display the unit 6 mA in which 0 is 4mA and 100 is 20mA Press the key lt lt gt to select the set digits for output Press the key A V to change the numerical value of the set digits which can do carry or number decrement automatically Hold the pressed key in one second and the numerical value will keep varying Press the key ON OFF to turn on off the output followed by displaying the symbol ON or OFF 5 3 25 of step current output The electric connection is the same as that of the current output Press the key V mA to select the mA function followed by displaying the unit mA or mA Press the key mA 25 to display the symbol r Press the key mA to select the output to be set in mA or followed by displaying the unit mA or mA Press the key A V to change the output in a value of 25 in which 0 denotes 4mA and 100 denotes 20mA Now press the key mA 25 again to exit the step current output 6 Press the key ON OFF to turn on or off the output followed by displaying the symbol ON or OFF 5 4 Current Output Set for Zero Point amp Full Scale The electric connection is the same as that of the current output Press the key V mA to select the mA function following by
12. inal If any improper voltage is applied to the output terminal it will cause damage to the internal circuit Output Operation Procedure Function Operation Displa Setting Range Operation Pare play 9 g DCV 10V 0 000 V 0 0000 11 0000 V t 00 000 22 000 mA DCA 20mA 20mA 00 000 mA t 025 00 112 50 mA 025 00 mA 5 1 DC voltage output 1 Insert one end of the test lead into the output jack of the calibrator and connect the other end to the input of the user s instrument as shown inthe following diagram 2 When the display indicates the symbol OUTPUT it denotes that the calibrator is in an output state 3 Press the key V mA to select the V function and display the unit V 4 Press the key lt lt P to select the set digits for output 5 Pressthekey A V to change the value of the set digits The value can do carry or number decrement automatically Hold the pressed key in one second and the value will be kept varying 6 Press the key ON OFF to turn on or turn off the output and the display indicates the symbol ON or OFF 5 2 DC current output 1 Insert one end of the test lead into the mA output jack of the calibrator and connect the other end to the input of the user s instrument as shown in the following diagram Fees eek es 0 0 Q AAT AX 2 Press the key V mA to sele 4 KD O ct the mA
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