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