_________________________________________M191 Insulation Tester Calibrator
4.00 19.999 000 000
10.
Fig. Sign “n/a“ is
displayed instead reading the display line. Reading the test
voltage has suppressed zero band +/- VDC. Displayed value
varies depending set main resistance value range 000 V.0 1000. This value test voltage sourced UUT and connected the calibrator
output terminals.0 GO. Calibrator calculates and displays test current. Maximum safe test voltage which allowed apply the output terminals. Maximum allowed working voltage is
from range 000 depending set resistance.
During function change, output terminals are always disconnected.99.Press the OUTPUT button again disconnect the output terminals.0 999.
- max. the mode any resistance value range
from 1TO can set and connected the output terminals.00 99. Switching the resistance value under test voltage is
allowed limited voltage range.9 000 000
500.99 000 000
20.0 000 000
Tab II.00 99.0 999.0 the test voltage not measured.M 000 1500
100. Calibrator measures the test voltage when resistance set range from to
300.
- Test current. range from 300.r.
- Applied test voltage. Test current value calculated according to
formula Itest Utest where set resistance value and Utest measured test voltage.9 000 000
300.9 000 000
1.00 99.0 499. Green LED goes off and the information
field the display shows the following off symbol .
MEATEST, s.4 HVR High resistance source mode
The calibrator basic function High resistance source mode (HVR). The resistance partial ranges, absolute voltage limits and maximum applicable
test voltage when the resistance switched over are shown the table:
Resistance range (fi) Vmax Absolute test voltage
(V)
Vo Maximum test voltage for
overswitching (V)
10.1 1000.
Calibrator measures continuously test voltage even when output terminals are OFF.o.0 299.000 9.99 50
100.999 000 000
10.000 9.9 250 250
1. The internal voltmeter has one range kV.99 000 000
100. High resistance mode ranges
In HVR mode the calibrator display enables setting only the main resistance value.
User Manual v16 15
. HVR mode
Following information are displayed the display:
- Set resistance value O
