AUTORANGING DIGITAL CLAMP METER
Contents
1. 3 times per second nominal Operating conditions O C to 50 C at gt 75 RH Noncondensing Storage conditions 20 C to 60 C 80 RH with battery removed Accuracy Accuracy specification at 27 C 5 C less than 75 RH Power Supply Two 1 5 V AAA size battery Battery Life 150 hours typical with carbon zinc Dimensions 215 x 80 x 40 mm approx Weight 280gms including battery approx Accessories Pair of test leads x 1 1 5V AAA battery installed x 2 Instruction manual x 1 Carrying Case x 1 Max Jaw Opening 30mm 4 3690AUTO 28 09 2012 1 2 Electrical Specification DC CURRENT Auto Ranging Overload Protection 400A 1 5 rdg 5 dgts 600A DC Max for 1 minute 600A 2 0 rdg 5 dgts AC CURRENT Auto Ranging Accuracy Range 50 6OHZ Overload Protection 1 75 rdg 3 5 rdg 600A AC Max AC Voltage Auto Ranging Range 4V 40V 400V 600V Resolution 1mV to 1V Accuracy 1 2 rdg 4 dgts on 50 60 Hz 2 rdg 25 dgts on 40 500Hz 4 rdg 5dgits on 600v Input impedance gt 10MV Over load protection 600V DC or 600V AC rms DC Voltage Auto Ranging Range 400mV 4V 40V 400V 600V Resolution 0 1mV to 1V Accuracy 0 5 rdg 8 dgts on 400mV to 400V 0 7 rdg 2 dgts on 600V Input impedance gt 10MV Over load protection 600V DC or 600V AC rms 2 OPERATION 1 Before taking any measurements read the safety inform2. Bus Bar upto t6mmx65mm Cable upto 438mm Diameter meco BIAL AR la iii Rulumi i SNCS at Tg ea i CIm m AUTORANGING DIGITAL CLAMP METER ie d i ath fe MANUAL 1 2 Electrical Specification Accuracies are reading number of digits at 27 5 C and humidity of less than 75 RH AC CURRENT 50 60Hz 40A 3 Adigt 1000A AC Max 400A 1000A 2 4dgt for 1 minute DC VOLTAGE Auto Ranging Ranges 4V 40V 400V 1000V 0 5 rdg 4 dgt on 4V 0 7 rdg 4 dgt on 40V amp 400V 1 of rdg 4 dgt on 1000V Accuracy Resolution ImV to 1V Input Impedance 10MV onall ranges except 11MV on 4V Overload Protection 1200V DC 800V AC AC VOLTAGE Auto Ranging 40 500Hz Range 4V 40V 400V 750V Accuracy 1 0 rdg 8 dgt on all ranges except 1 5 rdg 8 dgt on 750V Resolution ImV to 1V Input Impedance 10MV_on all ranges except 11MV on 4V Overload Protection 1200V DC 800V AC RESISTANCE Auto Ranging Range 400V 4KV 40KV 400KV 4MV 40MV Accuracy 0 7 rdg 4 dgt on all ranges except g g g 1 2 of rdg 4 dgt on 4MV 2 5 of rdg 4 dgt on 40MV MODEL DT3150 1 SPECIFICATIONS 1 1 General Specification Display mg 3 digit liquid crystal display LCD witha maximum reading of 3999 Polarity Automatic positive implied negative polarity indication Overrange OL or OL is displayed Zero Automa
3. 2 5 of rdg 4 dgt on 40MV 3 1 SPECIFICATIONS 1 1 General Specification Display mg 3 digit liquid crystal display LCD witha maximum reading of 3999 Polarity Automatic positive implied negative polarity indication Overrange m OL or OL is displayed Zero Automatic Low battery is displayed when the battery indication voltage drops below the operating level Measurement 3 times per second nominal rate Operating m O C to 50 C at lt 70 relative humidity Environment Storage m 20 C to 60 C 0 to 80 R H with battery Temperature removed from meter Accuracy m Stated accuracy at 27 C 5 C lt 75 relative humidity Power m Two 1 5V AAA Size Battery Battery life 200 hours typical Dimensions m 250 x 98 x 35mm approx Weight m 400gms including battery approx Accessories m Pair of test leads x 1 instruction manual x 1 1 5V batterys installed x 2 Carring Case x 1 Maximum Jaw 55mm Opening 2 Resolution 0 1V to 0 01MV Test Current 0 7mA on 400V 0 1mA on 4KV 30A on 40KV 4A on 400KV Overload Protection 500V DC AC Continuity Check Threshold Level 40V Approx Response Time 1m Sec Approx Open Circuit Voltage 0 4V Approx Indication is displayed on LCD and buzzer sounds at continuity Overload Protection 500VDC AC Diode Test Measurement Current 1 0 0 6 mA Approx Open Circuit Voltage 1 5V Approx Overload Protection 500V
4. DC AC Frequency Auto Ranging Range 10 00Hz 50 00Hz 500 0Hz 5 000kHz 50 00kHz 500 0kHz Accuracy 0 5 rdg 2 dgt Sensitivity 3V Overvoltage Protection 200V DC or AC peak Duty Cycle Auto Ranging Range 1 to 90 Accuracy 0 5 rdg 5 dgt Resolution 0 1 Overvoltage Protection 200V DC or AC peak 4 2250Hz AUTO 28 09 2012 2 OPERATION Before taking any measurements read the safety information section Always examine the instrument for damage contamination excessive dirt grease etc and defects Examine the test leads for cracked or frayed insulation If any abnormal conditions exist do not attempt to make any measurements SELECT BUTTON In ACV Range it will select ACV Hz Duty function In V PF range it will select resistance or diode or countinuity function In Hz it will select Hz Duty function DATA HOLD BUTTON Press Data Hold button to toggle in and out of Data Hold mode In the Data Hold mode the H annunciator is displayed 2 1 Current Measurements 1 Set the Function Range switch to the highest 1000A AC range 2 Press the trigger to open transformer jaws clamp onto one conductor only and release trigger Jaws should be completely closed Read the current directly on the display It is recommended that the conductor be placed at the center of the closed jaws for maximum accuracy Fig 1 Fig 1 3 When the reading is l
5. pressing select key 3 Turn off power to the circuit under test 2 6b ACV position For line frequency measurement Sensitivity 2V Frequency Range 40Hz to 500Hz Duty Cycle 10 to 90 Overvoltage Protection 1000V DC or 750V AC peak 1 Connect test lead to VV and COM terminal 2 Set rotary switch to ACV posotion 3 Select Frequency or Duty cycle by pressing Select key 4 Connect the test leads across the source or load under measurement 3 MAINTENANCE WARNING Remove test leads before changing battery or servicing Battery Replacement Power is supplied by two 1 5V AAA size battery or Equivalent The appears on the LCD display when replacement is needed To replace the battery remove the screw from the battery cover and lift off the battery case Remove the batterys amp repleced with new batterys 4 SAFETY INFORMATION The following safety information must be observed to ensure maximum personal safety during the operation of this meter 1 Do not use the meter if the meter or test leads look damaged or if you suspect that the meter is not operating properly 2 This Clamp Meter is designed to take current measurements on circuits with a maximum voltage difference of 500VAC between any conductor and ground potential Using the instrument for current measurements on circuits above this voltage may cause electric shock instrument damage or damage to the equipm
6. BY DATE MODEL NO 10 2250Hz AUTO 28 09 2012 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 2 10 2 11 2 12 ES s a meco 3690 AUTOT DC AC CLAMP METER MODEL 3690AUTO USER MANUAL Transformer Jaw This is used to sense the current signal To measure DC AC current conductor must be enclosed by the jaw Transformer Trigger This is used to open the jaw Function selector switch This is use to select the function user desired such as DCA ACA X ohm continuity diode and Hz Data Hold Button Zero Button LCD This is a 3 digit liquid crystal display with maximum indication of 4000 counts Low Battery Symbol When this Symbol appears it means the battery voltage drops below the minimum required voltage Refer to section V for battery replacement VV Hz gt Input Terminal This terminal is used as input for voltage ohm continuity diode and frequency measurement COM Terminal This terminal is used as common reference input Hz Duty Button Range Button Select Button FRONT PANEL CONTROLS meco 3690 2 2 ae 2 11 2 12 2 6 2 8 2 1 SPECIFICATIONS 1 1 General Specifications Display 3 digit liquit crystal display LCD Max reading 3999 counts Polarity Automatic Positive implied negative polarity indication Zero adjustment Automatic Over range indication OL or OL Low battery mark turns on Sample rate
7. NDIA Tel 0091 22 27673311 16 27673300 Board Fax 0091 22 27673310 27673330 E mail sales mecoinst com Web www mecoinst com SR NO CHECKED BY DATE MODEL NO 12 3150 28 09 2012 MECO AUTORANGING DIGITAL CLAMP METER MODEL 2250 Hz AUTO MECO DT 2250 HzAUTO DIGITAL CLAMP METER DATA HGLD al ar LIL r COM es vO OMA INSTRUCTION MANUAL 1 2 Electrical Specification Accuracies are reading number of digits at 27 5 C and humidity of less than 75 RH AC CURRENT 50 60Hz 40A 3 4dgt 1000A AC Max 400A 1000A 2 4dgt for 1 minute DC VOLTAGE Auto Ranging Ranges 4V 40V 400V 1000V 0 5 rdg 4 dgt on 4V 0 7 rdg 4 dgt on 40V amp 400V 1 of rdg 4 dgt on 1000V Accuracy Resolution ImVto1V Input Impedance 10MV on all ranges except 11MV on 4V Overload Protection 500V DC 350V AC for 15 sec on 4V range 1200V DC 800V AC on all other ranges AC VOLTAGE Auto Ranging 40 500Hz Range 4V 40V 400V 750V Accuracy 1 0 rdg 8 dgt on all ranges except 1 5 rdg 8 dgt on 750V Resolution ImV to 1V Input Impedance 10MV on all ranges except 11MV on 4V Overload Protection 500V DC 350V AC for 15 sec on 4V range 1200V DC 800V AC on all other ranges RESISTANCE Auto Ranging Range 400V 4KV 40KV 400KV 4MV 40MV Accuracy 0 7 rdg 4 dot on all ranges except 1 2 of rdg 4 dgt on 4MV
8. ation section Always examine the instrument for deamage contamination excessive dirt grease etc and defeets Examine the test leads for cracked or frayed insulation If any abnormal conditions exist do not at ettempt to make any measurement 2 Data Hold Button Press data hold button to toggle in and out of data hold mode in the data hold mode the HOLD annunciator is displayed 3 Select Button In x Range it will select DCV or ACV function in V gt F range it will select resistance or diode or continuity function 4 Range Button Press Range button to select the manual range mode and turn off the Auto annunciator The meter remains in the range it was in when manual ranging was selected In the manual range mode Each time you press Range button the range and the input range annunciator in crements and a new value is displayed To exit the manual range mode and return to autoranging press and hold down Range button for 2 seconds The auto annunciator turns back on 5 D Zero Button Press D zero button to enter the relative mode the D zero annunciator turn on zero the display and store the displayed reading as a refrenece value press and hold down the D zero button for 2 seconds to exit the reative mode 6 Hz Duty Button In ACV range it will select ACV HZ Duty function in Hz range it will select Hz Duty function EE Resistance Auto Ranging Ra
9. d on the meter 13 NOTE 15 NOTE 14 MECO Certificate of Calibration We hereby certify that this product has been calibrated and found to be in accordance with the applicable SPECIFICATIONS and STANDARDS Accuracies of the standard equipment used in this calibration are traceable to the National Standards MECO METERS PVT LTD Plot No EL 60 MIDC Electronic Zone TTC Industrial Area Mahape Navi Mumbai 400710 INDIA Tel 0091 22 27673311 16 27673300 Board Fax 0091 22 27673310 27673330 E mail sales mecoinst com Web www mecoinst com SR NO CHECKED BY DATE MODEL NO 16 S690AUTO 28 09 2012
10. d secure the screw 12 S690AUTO 28 09 2012 PRECAUTION 1 Observe all safety rules while making measurements CAUTION should be exercised when making measurements since dangerous voltages can be present in normally safe circuit or areas 2 If this instrument is NOT going to be operated for an extended period remove the battery since damage can result from leakage 4 SAFETY RULES The following safety information must be observed to ensure maximum personal safety during the operation of this meter 1 Do not use the meter if the meter or test leads look damaged or if you suspect that the meter is not operating properly 2 This clamp meter is designed to take current measurements on circuit with a maximum voltage difference of 500VAC between any conductor and ground potential Using the instrument for current measurements on circuit above this voltage may cause electric shock instrument damage or damage to the equipment under test 3 Turn off power to the circuit under test before cutting unsoldering or breaking the circuit Small amounts of current can be dangerous 4 Use caution when working above 60V DC or 30V AC rms Such Voltages pose a shock hazard 5 When using the probes keep your fingers behind the finger guards on the probes 6 Measuring voltage which exceeds the limits of the clamp meter may damage the meter and expose the operator to a shock hazard Always recognize the meter voltage limits as state
11. e test leads across the source or load under measurement 2 2 Voltage Measurements 1 Connect the red test lead to the VV jack and the black test lead to the COM jack 2 Set the Function Range switch to the desired Voltage type AC or DC Connect the test leads to the device or circuit being measured For DC a sign is displayed for negative polarity positive polarity is implied 2 3 Resistance Measurements Connect red test lead to the VV jack and black test lead to the COM jack Set function Range switch to V PH position If the resistance being measured is connected to a circuit turn off power to the circuit being tested and discharge all Capacitors 4 Connect test leads across the resistance being measured When measuring high resistance be sure not to contact adjacent points even if insulated because some insulators have a relatively low insulation resistance causing the measured resistance to be lower than the actual resistance 5 Read resistance value on digital display If a high resistance vaiue is shunted by a large value of capacitance allow display to stabilize 2 4 Diode Test 1 Connect the red test lead to the VV jack and black test lead to the COM jack 2 Setthe Function Range switch to the V PH position select PF by pressing select key 3 Turn off power to the circuit under test 2 6b ACV position For line frequency measu
12. ent under test 8 2250Hz AUTO 28 09 2012 Before measuring current make certain the test leads are removed from the instrument 3 The instrument is protected for overload upto 500 VAC for 1 minute Do not take current readings on circuits where the maximum current potential is not known Do not exceed the maximum currents that this instrument is designed to measure 4 Turn off power to the circuit under test before cutting unsoldering or breaking the circuit Small amounts of current can be dangerous 5 Use caution when working above 60V DC or 30V AC rms Such voltages pose a shock hazard 6 When using the probes keep your fingers behind the finger guards on the probes 7 Measuring voltage which exceeds the limits of the clamp meter may damage the meter and expose the operator to a shock hazard Always recognize the meter voltage limits as stated on the front of the meter MECO CERTIFICATE OF CALIBRATION We hereby certify that this product has been calibrated and found to be in accordance with the applicable SPECIFICATIONS and MECO STANDARDS Accuracies of the standard equipment used in this calibration are traceable to the National Standards MECO METERS PVT LTD Plot No EL 60 MIDC Electronic Zone TTC Industrial Area Mahape Navi Mumbai 400710 INDIA Tel 0091 22 27673311 16 27673300 Board Fax 0091 22 27673310 27673330 E mail sales mecoinst com Web www mecoinst com SR NO CHECKED
13. erence of 500VAC between any conductor and ground potential Using the instrument for current measurements on circuits above this voltage may cause electric shock instrument damage or damage to the equipment under test Before measuring current make certain the test leads are removed from the instrument The instrument is protected for overload upto 500 VAC for 1 minute Do not take current readings on circuits where the maximum current potential is not known Do not exceed the maximum currents that this instrument is designed to measure Turn off power to the circuit under test before cutting unsoldering or breaking the circuit Small amounts of current can be dangerous Use caution when working above 60V DC or 30V AC rms Such voltages pose a shock hazard When using the probes keep your fingers behind the finger guards on the probes Measuring voltage which exceeds the limits of the clamp meter may damage the meter and expose the operator to a shock hazard Always recognize the meter voltage limits as stated on the front of the meter CERTIFICATE OF CALIBRATION We hereby certify that this product has been calibrated and found to be in accordance with the applicable SPECIFICATIONS and MECO STANDARDS Accuracies of the standard equipment used in this calibration are traceable to the National Standards MECO METERS PVT LTD Plot No EL 60 MIDC Electronic Zone TTC Industrial Area Mahape Navi Mumbai 400710 I
14. l 2 Set rotary switch to Hz posotion 3 Select Frequency or Duty cycle by pressing Select key 4 Connect the test leads across the source or load under measurement 2 2 Voltage Measurements 1 Connect the red test lead to the VV jack and the black test lead to the COM jack 2 Set the Function Range switch to the desired Voltage type AC or DC Connect the test leads to the device or circuit being measured For DC a sign is displayed for negative polarity positive polarity is implied 2 3 Resistance Measurements Connect red test lead to the VV jack and black test lead to the COM jack Set function Range switch to V P position If the resistance being measured is connected to a circuit turn off power to the circuit being tested and discharge all Capacitors 4 Connect test leads across the resistance being measured When measuring high resistance be sure not to contact adjacent points even if insulated because some insulators have a relatively low insulation resistance causing the measured resistance to be lower than the actual resistance 5 Read resistance value on digital display If a high resistance value is shunted by a large value of capacitance allow display to stabilize 2 4 Diode Test 1 Connect the red test lead to the VV jack and black test lead to the COM jack 2 Setthe Function Range switch to the V position select PF by
15. ng select button O Insert the test lead in to the input jack a Connect the test lead to the test points the beeper sounds conninuosly If the resistance is less than 40V 16 Frequency a Setthe rotary switch at Hz range b Insert the test lead in to the input jack c Connect the test lead to the points of measurement and read the frquency form the display 10 3 Select ACV range by pressing select button 4 Select frequency or duty cycle by pressing Hz Duty button 5 Connect the test leads across the source or load under measurment 3 MAINTENANCE WARNING Remove test leads before changing battery performing any servicing Never operate instrument unless bottom cover is closed TROUBLE SHOOTING If there appears to be s malfunction during the operation of the meter the following steps should be performed in order to isolate the cause of the problem 1 Check the battery 2 Review the operating instructions for possible mistakes in operating procedure 3 Inspect and test the Test Probes for a broken or intermittent connection BATTERY REPLACEMENT When the low battery symbol is displayed on LCD replace the old battery with new battery A Turn the power off and remove the test leads from the clamp meter Remove the screw of the battery compartment Slide off the battery compartment Remove the old battery Insert new battery umOoOM Replace the battery compartment an
16. nge 400V 4KV 40KV 400KV 4MV 40MV Resolution 0 1V to 0 01MV Accuracy 0 75 rdg 8 dgts on 400V to 400KV 1 0 rdg 6 dgts on 4MV 2 0 rdg 4 dgts on 40MV 0 4V DC 600V DC or AC rms Open Circuit Volts Over load protection Diode test Test Current 1 0 mA 0 6 mA Accuracy 3 0 rdg 3 dgts Open circuit volts Overload protection Continuity Audiable indication less than 40V 20V Overload protection 600V DC or AC rms Frequency Auto Ranging 3 0V DC typical 600V DC or AC rms Ranges 100Hz 1KHz 10KHz 100KHz 500KHz Resolution 0 1 Hz to 0 1 KHz Accuracy 0 3 rdg 2 dots Sensitivity 3 0V rms min Effect reading 10 9999 Overload protection 200V DC or AC rms Duty Cycle Auto Ranging Range 1 to 90 Accuracy 0 5 rdg 5 dgts Resolution 0 1 Overload protection 200V DC or AC rms A DC AC Current Measurements 7 WARNING Make sure that all the test leads are disconnected from the meter s terminal for current measurement 8 DC Current a Set the rotary switch at DCA range b Push the zero button to stop the reading at zero for one second If the reading is not stopped at zero release the button a while and push it again c Press the trigger to open the jaw and fully enclose the conductor to be mesured No air gap is allowed between the two half jaws d Read the measured value from the LCD display e Make sure
17. oltage Protection 200V DC or AC peak Capacitance Auto Ranging Range 40nf 400nf 4mf 40mf 100mf Accuracy 5 rdg 10 d gt Resolution 0 01nf to 0 1mf 4 3150 28 09 2012 2 OPERATION Before taking any measurements read the safety information section Always examine the instrument for damage contamination excessive dirt grease etc and defects Examine the test leads for cracked or frayed insulation If any abnormal conditions exist do not attempt to make any measurements SELECT BUTTON In ACV Range it will select ACV Hz Duty function In V PH range it will select resistance or diode or countinuity function In Hz it will select Hz Duty function DATA HOLD BUTTON Press Data Hold button to toggle in and out of Data Hold mode In the Data Hold mode the H annunciator is displayed 2 1 Current Measurements 1 Set the Function Range switch to the highest 1000A AC range 2 Press the trigger to open transformer jaws clamp onto one conductor only and release trigger Jaws should be completely closed Read the current directly on the display It is recommended that the conductor be placed at th e center of the closed jaws for maximum accuracy Fig 1 _ m Fig 1 meco sola meco val 3 When the reading is lower than 400 counts set the range switch to the next lower range position For maximum accuracy select the lowest range possible without over 5 ranging the me
18. ower than 400 counts set the range switch to the next lower range position For maximum accuracy select the lowest range possible without over 5 ranging the meter 4 Touch probes to the diode A forward voltage drop is about 0 6V typical for a silicon diode 5 If the digital display reads overrange OL reverse the lead connections The placement of the test leads when the forward reading is displayed indicates the orientation of the diode The red lead is positive and the black lead is negative If overrange OL is displayed with both lead connections the junction is open If a low reading less than 1000 is obtained with both lead connections the junction is shorted internally or if junction is measured in a Circuit the junction is shunted by a resistance less than 1KV In the letter case the junction must be disconnected from the circuit in order to verify its operartion 2 5 Continuity Measurement In continuity test the beeper sounds continuously if the resistance is less than 40V 2 6 Frequency amp Duty Cycle Measurement There are 2 positions for Frequency amp Duty cycle measurements a Hz position Not for line frequency measurement b ACV position 2 6a Hz position Not for line frequency measurement Sensitivity OV Frequency Range 10Hz to 500kHz Duty Cycle 1 to 90 Overvoltage Protection 200V DC or AC peak 1 Connect test lead to VV and COM termina
19. rement Sensitivity 2V Frequency Range 40Hz to 500Hz Duty Cycle 10 to 90 Overvoltage Protection 1000V DC or 750V AC peak 1 Connect test lead to VV and COM terminal 2 Set rotary switch to ACV posotion 3 Select Frequency or Duty cycle by pressing Select key 4 Connect the test leads across the source or load under measurement 2 7 Capacitance measurement 1 Set function Range Switch to 4 position 2 Short the leads of the capacitor to be tested togather to ensure that there is no charge on the capacitor 3 Insert the capcitor leads into the capacitor test socket 4 Read the capacitance value in the display 3 MAINTENANCE WARNING Remove test leads before changing battery or servicing Battery Replacement Power is supplied by two 1 5V AAA size battery or Equivalent The 4 appears on the LCD display when replacement is needed To replace the battery remove the screw from the battery cover and lift off the battery case Remove the batterys amp repleced with new batterys 8 3150 28 09 2012 4 SAFETY INFORMATION The following safety information must be observed to ensure maximum personal safety during the operation of this meter 1 Do not use the meter if the meter or test leads look damaged or if you suspect that the meter is not operating properly This Clamp Meter is designed to take current measurements on circuits with a maximum voltage diff
20. resistance measurement remove power from the circuit being tested and discharge all the Capacitors 13 Resistance a Setthe rotary switch at V gt F range b Insert the test lead in to the input jack c Ifthe resistance being measured is connected to a circuit turn off power to the circuit being tested and discharge all the capacitors d Connect test lead across the resistance being measured When meansuring high resistance be sure not contact adjacent points even if insulated because some insulator have a relatively low insulation resistance causing the measured resistance to be lower than the actual resistance e Read resistance value on digital display If a high resistance value is shunted by a large value of capacitace allow 9 display to stabilize 17 Duty Cycle a Set the rotary switch at Hz range b Select duty cycle by pressing Hz Duty button O Insert the test lead in to the input jack a Conncet the test lead to the points of measured and read duty cycle from the display 18 Frequency amp Duty Cycle measurement There are 2 positions for frequency amp duty cycle measurment a Hz position not for line frequency measurement b ACV position for line frequency measurement a Hz position not for line frequency measurment Sensitivity 3V Frequency range 100 Hz to 500KHz Duty cycle 1 to 90 Overload protection 200V DC or AC peak 1 Set the rotary switch at H
21. ter 4 Touch probes to the diode A forward voltage drop is about 0 6V typical for a silicon diode 5 If the digital display reads overrange OL reverse the lead connections The placement of the test leads when the forward reading is displayed indicates the orientation of the diode The red lead is positive and the black lead is negative If overrange OL is displayed with both lead connections the junction is open If a low reading less than 1000 is obtained with both lead connections the junction is shorted internally or if junction is measured in a circuit the junction is shunted by a resistance less than 1KV In the letter case the junction must be disconnected from the circuit in order to verify its operartion 2 5 Continuity Measurement In continuity test the beeper sounds continuously if the resistance is less than 40V 2 6 Frequency amp Duty Cycle Measurement There are 2 positions for Frequency amp Duty cycle measurements a Hz position Not for line frequency measurement b ACV position for line frequency measurement 2 6a Hz position Not for line frequency measurement Sensitivity OV Frequency Range 10Hz to 500kHz Duty Cycle 1 to 90 Overvoltage Protection 200V DC or AC peak 1 Connect test lead to Hz and COM terminal 2 Set rotary switch to Hz posotion 3 Select Frequency or Duty cycle by pressing Select key 4 Connect th
22. that the offset value caused by the residual magetism is still removed If the new offset value is produced remove it with the zero button and make a new measurement again according to the c amp d If the current to be measured is larger than the current measured before or the direction of current changes the new offset value will be produced 9 AC Current a Set the Function Range switch to the ACA range b Press the trigger to open transformer jaws clamp onto completely closed Read the current directly on the display It is recommended that the conductor be placed at the center of the close jaws for maximum accuracy B DC AC Voltage Measurements 10 WARNING Maximum input for DCV is 600V and for ACV is 600V Do not attempt to take any voltage measurement that exceeds the limits Exceeding the limits could couse electrical shock and damage to the clamp meter S690AUTO 28 09 2012 11 DC Voltage a Set the rotary switch at 2 range b Insert the testleads into the input jack c Connect the test probe in parallel to the circuit to be measured d Read the measured value from the LCD display 12 AC Voltage a Set the rotary switch at ES range b Select ACV by pressing selcet button a o Insert the test tead in to the input jack Connect the test probe in parallel to the circuit to be measured e Read the measured value form the LCD display WARNING Before taking any in circuit
23. tic Low battery is displayed when the battery indication voltage drops below the operating level Measurement a 3 times per second nominal rate Operating m O C to 50 C at lt 70 relative humidity Environment Storage m 20 C to 60 C 0 to 80 R H with battery Temperature removed from meter Power m Two 1 5V AAA Size Battery Battery life m 200 hours typical Dimensions m 247x 76x 39mm approx Weight m 465gms including battery approx Accessories Pair of test leads x 1 instruction manual x 1 1 5V batterys installed x 2 carring case x 1 Maximum Jaw sm Can measure round cables upto 43mm Opening dia amp Flats Bus Bar 65mm x 16mm 2 Resolution 0 1V to0 01MV Test Current 0 Z7mA on 400V 0 1mAon4KV 30A on 40KV 4uA on 400KV Overload Protection 500V DC AC Continuity Check Threshold Level 40V Approx Response Time 1m Sec Approx Open Circuit Voltage 0 4V Approx Indication is displayed on LCD and buzzer sounds at continuity Overload Protection 500V DC AC Diode Test Measurement Current 1 0 0 6 mA Approx Open Circuit Voltage 1 5V Approx Overload Protection 500V DC AC Frequency Auto Ranging Range 10 00HZ 50 00Hz 500 0Hz 5 000kHz 50 00kHz 500 0kHz Accuracy 0 5 rdg 2 dgt Sensitivity 3V Overvoltage Protection 200V DC or AC peak Duty Cycle Auto Ranging Range 1 to 90 Accuracy 0 5 rdg 5 dgt Resolution 0 1 Overv
24. z 2 Connect test lead in to the input jack 3 Select frequency or duty cycle by pressing Hz Duty button 4 Connect the test leads across the source or load under measurement b ACV position for line frequency measurement Sensitivity 2V Frequency range 40 Hz to 500Hz Duty cycle 10 to 90 Overload protection 600V DC or 600V AC rms 1 Set the rotary switch at V 11 2 Connect test lead in to the input jack 14 Diode a Set the rotary switch at V gt F range Select by pressing select button c Insert the test lead in to the input jack d Turn off power to the circuit under test e Touch probes to the diode A forward voltage drop is about 0 6V typical for a silicon diode f If the digital display reads over range OL reverse the lead connections The placement of the test leads when the forweard reading is displayed indicates the orientation of the diode The red lead is positive and the black lead is negative If overrange OL is display with both lead connection the juction is open if a low reading less than 1000 is obtained with both lead conncetion the junction is shorted internally or if junction is measured in a circuit the junction is shunted by a resistance less than 1kV in the letter case the junction must be disconnected form the circuit in order to verify its opertion 15 Continuty a Set the rotary switch at V gt range b Select by pressi
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