Siemens ULTRAMAT 23 gas analyzer 7MB series for measuring CO

Siemens ULTRAMAT 23 gas analyzer 7MB series for measuring CO

SO2 0-500ppm to 0-2500ppm

CH4 0-500ppm to 0-20%

NOX 0-250ppm to 0-500ppm

O2 0-5% to 0-25%

CO 0-1000ppm to 0-100%

CO2 0-1000ppm to 0-100%

Single component and two-component analyzers

Hardware requirements: PC/laptop; 486DX-66 with at least 8 MB RAM and a hard drive with at least 10 MB of free space; Idle COM ports: RS232 or RS485,
The transmission distance can reach up to 500 meters, and using repeaters can achieve even longer transmission distances.
Software requirements: Windows 95/98 or NT (version 4.0 or higher).
Preparation for startup:
Check for leaks and measure the pressure using a U-tube pressure gauge. Check the leakage of the sample gas path according to the following method:
Apply a pressure of approximately 0.1 bar in the sample gas path
Wait for about 1 minute until the temperature of the incoming gas stabilizes
• Record the pressure
Continue waiting for 15 minutes, then record the pressure again. If the change in pressure within 15 minutes is not greater than 1 hPa (1 mbar), it indicates that the sample gas path has sufficient leak resistance.
Gas processing, gas sampling devices, gas coolers, liquid condensation tanks, filters, all controllers, recorders or indicators (if connected) should be prepared for their operation.
Start up
Power on: When the analyzer is set to the desired voltage and all connections are complete, you can connect the analyzer to the power supply. Connect the power supply of the analyzer and allow it to preheat
Self calibration overview: When the analyzer starts, it will use the connected medium for calibration. This' self calibration 'will calibrate the zero point and sensitivity of the IR channel.
If there is an O2 sensor, its sensitivity will also be calibrated simultaneously.
Note: If there is no O2 sensor in the analyzer, nitrogen can be used for self calibration. If the analyzer is equipped with an O2 sensor, only air can be used for self calibration.
Select the media provided based on the configuration of the analyzer (gas connection), and these media cannot be parameterized using software.
During the operation, you can manually trigger a self calibration by pressing the CAL key. The ULTRAMAT 23 analyzer can also perform a self calibration cycle,
For example, the self calibration cycle is conducted periodically (with adjustable cycle time)
Duration: The duration of self calibration depends on various factors. It takes about 3 minutes and consists of the following parts:

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Assign the function 'Sync' to a relay (see section 5.10.1.2)
Assign the function 'Activate CAL Relay' to the digital input SYNC (see section 5.10.1.3).
Two analyzers without internal pumps and internal solenoid valves (used to switch between sample gas and zero gas when self calibrating).
The self calibrating main control instrument controls an electromagnetic valve through a digital output to switch between sample gas and zero gas for self calibration.
The cyclic self calibration of the main control instrument triggers a parallel self calibration for the slave instrument through its digital output SYNC and the digital output SYNC of the slave instrument.
Parameter setting: Self calibrating main control instrument
• Enter the self calibrated cycle time, for example: 6 hours (see section 5.8.4)
Assign the function 'Sync' to a relay (see section 5.10.1.2)
Assign the function 'zero gas' to a relay (see section 5.10.1.2)
Assign the function 'Activate CAL Relay' to the digital input SYNC (see section 5.10.1.3).
Passive instrument
Set the self calibration cycle time to "0" to avoid executing a cycle of self calibration when triggered
Assign the function 'Sync' to a relay (see section 5.10.1.2)
Assign the function 'self calibration' to the digital input SYNC (see section 5.10.1.3).

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Siemens ULTRAMAT 23 gas analyzer 7MB series for measuring CO

Double the set value of the blowing time
The duration of internal electronic device adjustment (equivalent to 2.5 times the time constant "within T90"); See section 5.9.3).
If an O2 sensor is used, the electronic adjustment time requires at least 60 seconds
Cycle time: The self calibration cycle time (the time between two automatic calibration triggers) can be set between 0-24h.
If you set "0" as its set value, the self calibration loop will terminate.
Note: However, for analyzers in preheating mode, their self calibration will be performed twice, starting approximately at the 5th and 30th minute after the analyzer is started.
To compensate for changes in environmental temperature, you should choose a cycle time between 3-12 hours.
Calibration: After installing the analyzer, you can use calibration gas to calibrate the analyzer (see Section 5.8).
Calibration should be performed using a gas containing sufficient concentration of the tested component (between 70% and 100% of the full-scale value of the sample gas in N2 or synthetic air).
Perform a calibration
Be careful to ensure that the gas flow rate is between 1.2-2.0L/min. Before starting the measurement, the analyzer needs to run for at least 30 minutes,
Because only after this period of time can the sufficient stability of the analysis part be guaranteed (99% value).
Compensation for temperature effects: The compensation for temperature effects is stored in the EEPROM of ULTRAMAT 23 and can only be modified in the factory.
Noise suppression: Any possible noise can be suppressed by adjusting various time constants (see Section 5.9).
According to the differences in environmental conditions, the analyzer should be recalibrated every six months to one year.
System settings for analyzer parallel connection