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Functions
8.4 Configuration
8.4.3.2
Configuration: Device test: Display/keys/flow
Test of display
Test of keys
Test of flow switch
8.4.3.3
Configuration: Device test: Inputs/outputs
Test analog outputs
Test of relays
Test ext. sol. valve
Test of inputs
Configuration: Device test: Inputs/outputs: Test analog outputs
Analog 1:
Analog 2:
Analog 3:
Analog 4:
154
You can select the following three tests in this menu.
• Test of display
In this test, all characters in the character set of this analyzer
are output in succession at every position of the display. The
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display remains empty if characters are output which cannot
be displayed. This is a cyclic test, i.e. once the complete char‐
acter set has been processed, it starts from the beginning
again. The test is repeated continuously until terminated by
pressing the <ESC> key.
A corresponding message will inform you of this before the
test is started.
• Test of keys
This test takes 30 s, and the time remaining up to the end of
the test is output on the display. During this time you can press
all input keys in succession. The analyzer normally recognizes
that a key has been pressed and indicates this. This test cannot
be prematurely cancelled.
• Test of flow switch
This indicates whether the sample gas flow is correct or not.
Depending on the type of gas supply, it may be necessary to
switch on the pump using the <PUMP> key.
In this menu you can call the tests of the electric inputs and out‐
puts of the analyzer. You require the following equipment to carry
out these tests:
• Ammeter
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• Ohmmeter
• Power supply (24 V DC)
• Test plugs
The analyzer has four analog outputs and an output current range
0.20 mA
of 0/2/4 ... 20 mA. You can test these by setting any value of the
0.40 mA
1.55 mA
output current between 0 and 20 mA in this menu display.
3.33 mA
To test these outputs, connect an ammeter to the corresponding
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analog outputs on plug X80 and measure the output current. The
pin assignments of plug X80 are described in section Pin assign‐
ments (Page 53).
Equipment Manual, 04/2022, A5E37100388-012
ULTRAMAT 23
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