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UUT starts source test
voltage.
C.
16 User Manual
.
Operating procedure
A.
Be aware that the test voltage for high resistance
measurements dangerous and can cause
electric shock!
M191 Insulation Tester Calibrator________________________________________ MEATEST, s.r. Enter requested resistance value using either numerical keyboard rotary button. Usetestleads deliveredwith
UUTsforhighertest voltages.
Change the resistance value allowedonly when attached test voltage lower than Voin TableII.
Notes:
Testleads deliveredwiththe calibratorareapprovedforapplication upto5kVDC. Setupresistance not changed.
J. Select resistance range UUTif necessary. Insteadofthis “Err1 Toohigh
test voltage! ”isdisplayed. Calibrator can measure
time interval for what the UUT test voltage presented the calibrator output terminals. During the
measurement the calibrator goes automatically through sequence statues: OFF, STANDBY, RUNNING, OFF. the test
voltageis over Voandattempt change theresistance isregistered, calibrator doesnot disconnect theoutput
terminals andshows errormessage “Err2 Set voltage bellow !”. Activate UUT measurement, typically pushing button the UUT. Select HVR mode pushing repeatedly FUNCTION FUNCTION DOWN button until HVRlabel
appears the display.
M191 starts measure test voltage and current. Select requested test voltage level UUT.
I. Switch
offthetest voltagefirstordecreaseits valuetolevellowerthanshown inthetableII.Test current displayed only when output terminals are ON. M191 calibrator measures the test voltage and display both test voltage and current.
Don't changesetresistance value when test voltageabove Vois connectedtotheoutputterminals, see tableII. the test voltage is
higher than the limits TableII, calibrator does not execute the ONcommand. Test current not displayed when set
resistance higher than 300.
In Timer function calibrator automatically connects the output terminals resistance value 100 MO. Decrease test voltagebefore continue.
Before the output terminals are switched ONstate, calibrator measures test voltage. Disconnect M191 output terminals using the button OUTPUT ON. Use only test leads with guaranteed isolation according test voltage
range UUT.
4. Green LED starts light.
G.0 GQ. Connect UUT the output terminals. Confirm the value by
pushing the appropriate unit button kQ, MQ, TQ.
E. Switch the UUT output OFF remove test voltage from its output.o.
H. Calibrator displays accuracy selected resistance point %. Connect output terminals the M191 pushing the button OUTPUT ON.5 TIMER Timer function
Timer function allows verify Timer features safety testers and megaohmmeters. The value
cannot modified.
- Accuracy. Compare UUT reading M191 set resistance.
D. Use test leads delivered with UUT whenever possible.
B.
F
