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