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