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7.1.3
Operating gases
The following calibration gases must be provided in order to guarantee problem-free
continuous operation:
• As zero gas for ULTRAMAT 23: Ambient air
• As zero gas for ULTRAMAT 6: Nitrogen with a purity of 5.0
• Specification of calibration gas (full-scale value gas): We recommend a full-scale
value calibration with a calibration gas containing the component to be measured in a
concentration of approximately 80% of the full-scale value.
Example: CO component measured with an ULTRAMAT 23 in the measuring range
0 ... 200 mg/m
80% = 160 mg/m
To verify the compatibility of various calibration gas components, please contact your
calibration gas supplier.
7.2
Commissioning
7.2.1
Function test
You need the following documents for this:
• Circuit diagram
• Gas flow diagram
• Operating instructions for all analyzers
By switching on the supply voltage, you are putting the system into ready state. Then:
• Assign the analyzer parameters according to their function.
• Check or simulate the heating control loops.
• Check all status messages of the analyzers and the system (e.g. moisture monitoring,
cooler, temperature monitoring of sample gas line, flow monitoring, reference gas
monitoring, switch operation, etc.).
• Check the analog signals of the analyzers (4 - 20 mA).
• Check the pumps and solenoid valves for proper functioning.
• Simulate the status messages of the system at the S7 inputs and check the
respective reaction, e.g. pump shutdown on condensate penetration, flow monitoring,
switch operation, heater fault messages, cooler status messages, analyzer status
messages, valve enables, automatic calibration cycle, maintenance messages and
fault messages to the control center, etc.
• Introduce the calibration gases and perform a manual calibration or autocalibration.
Set CEM CERT
Operating Instructions, 03/2020, A5E34491309-11
3
. This yields an optimal calibration gas concentration of 200 mg/m
3
CO. Nitrogen is typically added to make up the calibration gases.
Commissioning
7.2 Commissioning
3
x
35
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