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5. Note the pressure.

6. Wait approximately 5 minutes. Note the pressure again.

If the pressure change lies under 1 hPa, the sample gas/reference gas path is adequately tight.

This value is based on the tare volume of the measuring module 7 ml and the volume of the

pressure measuring device of 25 ml.

9.6.7 Checking CALOMAT 7 for leaks

Procedure

1. Connect a pressure measuring instrument (manometer) to the sample gas outlet.

Measuring range approx. 200hPa rel. to 1000hPa rel. with appropriate measured value

resolution (0.1hPa).

Absolute pressure gauges with correspondingly good resolution are also suitable.

2. Connect the sample gas inlet to a compressed air source via a shuto󹪜 mechanism. The

shuto󹪜 mechanism must demonstrate a leakage rate <10

-5

hPa*l/s.

3. Pressurize the analyzer module step-by-step with an overpressure of approx. 200hPa.

4. Close the shuto󹪜 mechanism and wait for approximately 5 minutes until the sample gas that

󹪞owed in has reached the ambient temperature.

5. Note the pressure.

6. Wait approximately 5 minutes. Note the pressure again.

If the pressure change lies under 5hPa, the sample gas path is adequately tight.

This value is based on the tare volume of the measuring module 7 ml and the volume of the

pressure measuring device of 23 ml.

9.7 Requirements for startup

You have ensured that

• The device has at least one analyzer module,

• All required gas lines and facilities are connected to the device and are checked for leaks and

tightness with an overpressure,

• No gas has been introduced into the device yet.

Information on how to connect the gas lines correctly is available

• in section "Gas connections (Page91)" and

• in the device-speci󹪝c operating instructions.

Commissioning

9.7Requirements for startup

Wall-mounted device

Operating Instructions, 07/2023, A5E31930403-AB 139

Siemens SIPROCESS GA700 Operating Instructions

Other manuals for Siemens SIPROCESS GA700