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Figure 4-2 replacing a fuse

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Summary of Contents for 77

Page 1: ...Process calibrator Multimeter ZUTEMER 77 User Manual www zutemer cz ...

Page 2: ...eter Case 1 Safety Information 1 Symbols 3 2 Understand Meter 3 Power on 3 Automatic Power off 3 Low Battery Display 4 Rotary Switch 4 Push Buttons 4 Screen Display 5 Input Output Terminals 7 Using Display HOLD mode 7 3 Operation 7 Measuring AC Voltage 7 Measuring DC Voltage 8 ...

Page 3: ... Resistance 10 Using Current Output Function 10 Constant Current Output in SOURCE mode 11 Constant Current Output in SIMULATE mode 11 Manual step Output 12 Setup Function 12 4 Maintenance 12 General Maintenance 12 Replacing the Batteries 12 Replacing Fuses 13 5 Specifications 15 Safety and Conformity 15 General Feature 15 Detailed Accuracy indicator 17 ...

Page 4: ... to see whether they are the same as shown in the packing list Keep the packing materials for late delivery Standard and chosen accessories supplied are listed as follows Chosen ones are bought at purchaser s options Standard accessories 1 testing wire with alligator clips 1 user s manual 2 1 5V LR6 Alkaline batteries 2 63mA 250V Fast Fuses Safety information The design manufacture and test of the...

Page 5: ...e test lead When disconnecting test leads disconnect the live test lead first l Read carefully and make sure well understanding of this Manual before use l Make sure the requirements in the Manual are strictly followed and keep the Manual for reference whenever needs l Mis operation may cause accidents and damages to the Meter in testing Caution To avoid possible damage to the Meter or to equipmen...

Page 6: ...e buildings lines industrial field devices CAT Ⅳ Overvoltage of class four secondary pollution according to IEC61010 refers to the level of protection for the pulse compression typical installation location includes Three phase utility power supply equipment for any outdoor power lines or equipment Any outdoor transmission lines Electricity meter front end over current protection device Section Tw...

Page 7: ... as soon as possible if symbol displays on the screen Rotary Switch Turn the rotary switch to any position to open the Meter Standard display of the function will appear in the screen Press green button to select green function of the rotary switch When the rotary switch turned to another function the screen will display information of the new function Sets on a certain function will not extend to...

Page 8: ...illustration Under measurement function readings display and held function Under output function select output set towards left Under output function select output settings towards left set output increase set value Step output output makes step and linear increase by 25 or 100 for each press Set output decrease set value Step output output makes step and linear decrease by 25 or 100 for each pres...

Page 9: ...er mode 6 250Ω HART Lights when 250Ω HART resistance function is active 7 0 FS Lights when calibration is active 8 Shows low battery state 9 LOOP POWER Starts 24v loop circuit power supply 10 ACDC Direct current Alternating current 11 mVA kΩ Measurement or output unit 12 25 100 Shows 25 or 100 manual step output of Dc mA in output mode 13 output set 14 continuity test function in measurement mode ...

Page 10: ...f 600V Ω diode and continuity test Using display hold mode Display HOLD Under output mode the Meter freezes data displayed in the reading part when pressing button to enter into display hold mode screen displays symbol Repress button to exit from display hold mode Section Three Operation This section introduces how to use this Meter Most functions are available by turning rotary switch White symbo...

Page 11: ...Meter l Because the testing current output by the meter may go through all possible links between probes the measured resistance value in the circuit could be different from the rated value Continuity test Warning l To avoid damage to the Meter or equipment under test cut all power off and release electricity fully from all capacitor before testing continuity 1 turn the rotary switch to 2 insert b...

Page 12: ... under test and then read the measured value when stable 4 Press button to display current value in percentage form Table 3 1 current value in percentage form current value Displayed In percentage form 22 000mA 162 50 0 000mA 25 00 4 000mA 0 00 20 000mA 100 00 22 000mA 112 50 Measuring loop circuit current The function may measure current value powered with 24VDC constant voltage 24V loop circuit ...

Page 13: ...obes to the circuit under test and then read the measured value when stable 4 Press button to display current value in percentage form Using current output function The meter offers 0 20 mA and 4 20mA current output functions Two output modes SOURCE mode supply current from internal source SIMULATE mode simulate absorb current from external source Two Configuration modes Constant current output co...

Page 14: ...3 Press button to display current value in percentage form 4 press buttons to set output value 5 Connect the leading wire to the circuit under test Constant current output SIMULATE mode SIMULATE mode refers to simulate a group of loop circuit current transmitter with the Meter If there are cases of an external DC voltage range from 5 28 v and tested loop current in series then select SIMULATE mode...

Page 15: ...e This section provides some basic maintenance procedures Repair calibration and servicing not covered in this manual must be performed by qualified personnel For maintenance procedures not described in this manual contact a ZUTEMER s Service Center General Maintenance Periodically wipe the case with a damp cloth and detergent do not use abrasives or solvents l Take out the batteries if the meter ...

Page 16: ...g To avoid personnel injury or damage to the meter use only the specified fuse The specification is 63mA 250V fast melt 3mA 250V fuse protection is in the mA current output terminal To check whether fuses are blown 1 Turn the rotary switch to 2 Plug the black test into COM and the red test lead into the mA input Use an ohmmeter to check the resistance between test leads If the resistance is about ...

Page 17: ... 14 Figure 4 2 replacing a fuse ...

Page 18: ...Mark CE Quality Standard Develops designs and manufactures in confirmty with ISO 9001 General feature Display Screen digit display in four digits 5 in current measurement and output refresh display 2 5 displays second operation temperature and moisture range 0 40 ºC relative moisture 85 no condensation storage temperature and moisture range 20 ºC 60 ºC relative moisture 90 no condensation accuracy...

Page 19: ...hen using alkaline battery measures any parameter about 100 hours DC current output SIMULATE about 50 hours DC current output SOURCE 20mA 1000Ω load about 2 5 hours low battery displays battery symbol automatic power off The default value is 5 mins if no operation which is adjustable preheating time 10min closed case calibration No internal adjustments needed battery access door Battery or fuse re...

Page 20: ...ing detailed accuracy indicator Measuring part range frequency accuracy remark DC voltage 50V 10mV 0 5 4 Measuring impedance 10 MΩ standard value Common mode restrain 50Hz or 60Hz 100Db String mode restrain 50Hz or 60Hz 45dB Overload protection 600V peak peak value AC voltage 500V 100mV 0 5 20 45Hz 100Hz frequency beeps 45Hz 400Hz Adaptive to range from 10 to 100 AC conversion mean value Measuring...

Page 21: ...peak peak value diode 2V 0 001V 1 20 DC current 20mA 0 001mA 0 2 4 overload protection 63mA 250V fast melt protection loaded voltage about 18mV mA Outputting detailed accuracy indicator output function range output designated range frequency accuracy remark DCI DC current 20mA 0 000 22 000mA 0 001mA 0 2 4 Max load 1kΩ at 20mA SIMULATE Simulate transmitter 20mA 0 000 22 000mA 0 001mA external power...

Page 22: ...The content of the operation instruction is regarded as correct Whenever any user finds its mistakes omission etc he or she is requested to contact the manufacturer l The present manufacturer is not liable for any accident and hazard arising from the customer misuse or inadvertent operation l The functions described in this operation instruction should not be used as grounds to apply this product ...

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