ELMACRON VA/V3, Manual

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6.2 HARDWARE CHECK
A check of the hardware is only necessary if you suspect that there is something wrong with your water
sampler.
1 Disconnect the power supply.
2 Press
M
and turn the power supply on, while keeping the button pressed during 10 seconds
(until the display shows
CH01
).
3 The sampler performs a self-test according to table 6.2.1.
6.2.1 Hardware check
CH01
Test of the LED display All 4 LED-diodes lights up
CH02
Test of the function keys Press the keys in numeric order and the
corresponding sign is shown on the display
CH03
Test of valves & the compressor The display shows
U1, U2, U3
when the
corresponding valve is tested and then
conp
when
the compressor is tested
CH04
Test of the IR-detectors
E-01
shows on the display if the bottle is dirty, if
the bottle is clean the display shows
Conn
CH05
Test of the overflow protection
E-08
if there is water in the vacuum tube
NOVA
if it is OK
CH06
Test of menu diodes All diodes on the menu line lights up
6.3 CALIBRATION
The water sampler is always pre-calibrated when delivered. Pre-calibration is only necessary when the sampler
has been shut of for a longer time.
6.3.1 Pre calibration
1. Disconnect the power supply.
2. Connect the reference instrument to VA/V3 through the Amphenol contact at the lower side of
VA/V3.
NOTE! Check the polarity; brown connector to
+
and blue connector to
-
.
3. Press
-
and turn the power supply on, while keeping the button pressed during 10 seconds until the
display shows
Cal1.
4. Set the out signal from the reference instrument to 20.0 mA. Press
=
to continue.
5. The display shows
C20.0
during 5 seconds.
6. The display shows
Cal2
.
Set the out signal from the reference instrument to 4.0 mA. Press
=
to
continue.
7. The display shows
C04.0
during 5 seconds.
8. The display shows
Cal3
. Set the out signal from the reference instrument to 0.0 mA. Press
=
to
continue.
9. The display shows
C00.0
during 5 seconds.
10. The sampler returns to sampling mode.
11. The calibration is complete.