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