Continuity Test / Diode Test; Rotary Field Indication; Measurement Point Illumination - Unitest Beha 2000 a alpha Bedienungsanleitung

4.6 Continuity Test / Diode Test

Make sure that UUT is not live. Test voltage polarity at
handle test probe is positive (+).
Check that UUT is not live by carrying out a double-pole
voltage test.
Connect both test probes with UUT. A signal sound is au-
dible for continuity and the LED for continuity Rx/Ω is il-
luminated.

4.7 Rotary Field Indication

The voltage testers are equipped with a double-pole rotary field
indicator.
The safety measures as mentioned in paragraph 2.0 have
to be met.
The rotary phase indication is always active. The symbols R
or L are always displayed. However, the rotary direction can
only be determined within a three-phase system. Here, the in-
strument indicates the voltage between two external conduc-
tors.
Connect the instrument test probe with the supposed
phase L2 and the handle test probe with the supposed
phase L1. Touch contact electrode (11).
The voltage and the rotary field direction are displayed.
L1
R
signifies that the supposed phase L1 is the actual phase
L1 and the supposed phase L2 is the actual phase L2
==> right rotary field
L
signifies that the supposed phase L1 is the actual phase
L2 and the supposed phase L2 is the actual phase L1
==> left rotary field.
When re-testing with exchanged test probes the opposi-
te symbol has to be illuminated.

4.8 Measurement Point Illumination

Voltage testers 2000 are equipped with a measurement point
illumination feature. Thus, working under bad lighting condi-
tions (e.g. division switch cabinets) is made easier.
Press button for measurement point illumination (10) on
instrument rear.
The measurement point illumination is active during ap-
prox. 45 seconds (only for UNITEST 2000 gamma).
16
L2 L3
N
PE
R
L2 L3
L1
N
PE
L