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Siemens ULTRAMAT 23 Product Information

Continuous gas analysis
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Continuous Gas Analysis
ULTRAMAT 23
Supplement 1 for Operating Instructions
C79000-G52xx-C216-03
Product Information
Introduction
Device model and validity
This supplement describes the device, ULTRAMAT 23 with a hydrogen-sulphide sensor. The supplement only covers the
specific components of this ULTRAMAT 23 version.
The standard operating instructions for the ULTRAMAT 23 (C79000-G52xx-C216) as of revision 03 should be read in any
case to ensure safe operation of this device. This applies, above all, to the warnings and safety information provided there.
Safety information
Safety information
You can find additional specific safety information in the respective sections of these operating instructions. Adherence to
these instructions is essential for safe handling of the device or situation described therein!
DANGER
Danger of poisoning
This device is designed to measure hydrogen sulfide and dihydrogen sulfide, H
Hydrogen sulfide is highly toxic even in small concentrations! The odor threshold for hydrogen sulfide is 0.02
vpm at (20 vpb). Persons exposed to this gas with concentrations up to 100 vpm for several hours demonstrate
poisoning symptoms such as fatigue, headache, loss of appetite and lack of concentration. With a
concentration from approximately 200 to 250 vpm, the olfactory receptors in the nose will be numbed so that
the odor is no longer perceived. Inhalation of H
fatal poisoning. Concentrations above 1 000 vpm cause death within a few minutes, concentrations above
5 000 vpm cause death within a few seconds!
When using this device in plant where there may be high concentrations of H
following continual precautions to prevent the effects of poisoning:
● Connect the gas outlet of the analyzer to a gas exhaust unit so that no gas can escape into the
environment!
● Before you begin maintenance on the analyzer, make sure that the H
close to 0 vpm. Before beginning work, always flush the gas path of the analyzer and the gas sampler with
ambient air or nitrogen for a duration of about 10 minutes .
● Check for leaks in the analyzer at regular intervals!
DANGER
Danger of explosion
This device is used in biogas plants, among other places. When it is used in biogas plants, you should expect
that the sample gas will contain methane, which forms explosive mixtures with oxygen or air in certain
concentrations. These conditions are possible with certain operating states of the plant.
● To avoid the danger of an explosion, it is essential to install a flame arrester upstream of the analyzer in the
sample gas line of biogas plants.
© Siemens, All rights reserved Ⓟ 2009, 2010, 2012
A5E02769382-03, 03/2012
S concentrations of 500 vpm longer than 30 minutes can cause
2
S)!
2
S and you therefore need to take
2
S concentration in the analyzer is
2
1

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Summary of Contents for Siemens ULTRAMAT 23

  • Page 1 ULTRAMAT 23 version. The standard operating instructions for the ULTRAMAT 23 (C79000-G52xx-C216) as of revision 03 should be read in any case to ensure safe operation of this device. This applies, above all, to the warnings and safety information provided there.

  • Page 2: Area Of Application

    Product information / technical updates Description Area of application This device is designed to measure H Application areas include ● Biogas plants ● Sewage plants ● Drinking water treatment ● Feeding of biogas into the natural gas grid Function Measuring principle The hydrogen sulfide enters through the diffusion barrier (gas diaphragm) into the sensor and is oxidized at the working electrode.
  • Page 3 Inlet chopper compartment flushing Oxygen sensor Condensation trap with filter Atmospheric pressure sensor Safety fine filter Hydrogen sulphide sensor Figure 2 ULTRAMAT 23, 19" rack-mounted enclosure with internal sample gas pump and optional oxygen measurement Supplement 1 for Operating Instructions C79000-G52xx-C216-03 A5E02769382-03, 03/2012...
  • Page 4 Figure 3 ULTRAMAT 23, 19" rack-mounted enclosure without internal sample gas pump, with optional oxygen measurement Supplement 1 for Operating Instructions C79000-G52xx-C216-03 A5E02769382-03, 03/2012...

  • Page 5: Technical Data

    Technical data S sensor for measuring ranges from 500 to 5000 vpm H General information Measured components Maximum of 4, comprising three infrared-sensitive gases, one oxygen and one hydrogen sulfide Measuring ranges Smallest measuring range 0 ... 500 vpm Largest measuring range 0 ...
  • Page 6 S sensor for measuring ranges from 5 to 50 vpm H General information Measured components Maximum of 4, comprising three infrared-sensitive gases, one oxygen and one hydrogen sulfide Measuring ranges Smallest measuring range 0 ... 5 vpm Largest measuring range 0 ...

  • Page 7: Operation

    Subsequently, the device enters the measuring mode and continuously measures. Since a hydrogen sulphide sensor is used with this ULTRAMAT 23 model, the device can measure a maximum of 2 IR components if an oxygen sensor is also being used at the same time.
  • Page 8 S sensor. A complete overview of all the device's control functions can be found in the standard operating instructions of the ULTRAMAT 23 (C79000-G52xx-C216-03). Press the ENTER key in measuring mode to start the operating mode. The main menu appears with the follow options.
  • Page 9 Calibration control functions You first need to select the H S sensor in order to adjust it. To do this, navigate in the operator menu as follows: Calibration -> Please enter code -> Calibrate probe -> Choose component -> H The following screen appears: Cal after install Start zero cal.
  • Page 10 Temperature compensation of sensitivity To do this, proceed as follows: 1. Select the menu screen 'TC parameter input' (see above). 2. Position the cursor on the second line 3. Then press the ENTER. button. The following screen appears: A: +4.2117e+0 B: -2.8547e-1 C: +5.5450e-3 D: -2.8001e-5...
  • Page 11 Calibrating the measuring range Span calibration You can calibrate the sensitivity of the sensor using this function. To do this, proceed as follows: MR Cal. Set span gas value Start Cal. MR1+2 1. Position the cursor on the 3rd line (Start Cal.) of the screen. 2.
  • Page 12 Drift values You can use this function to display the drift values of the zero point and sensitivity (MR 1 and MR 2) and to reset them to zero. To do this, navigate as follows: Calibration -> Please enter code -> AUTOCAL/Drift values-> Drift values. The following screen appears: Thermo-AUTOCAL: OFF Drift values...
  • Page 13 Protection and purging function of H S probes (display in the operating screen: 'Protection Probe H2S') Hydrogen sulfide (H S) is a corrosive gas, especially in wet condition and in combination with other gases. A protection and purging function has been implemented since H S concentrations above the specified continuous concentration impair the functionality and service life of the H S probes (50 vpm and 5 000 vpm).
  • Page 14 Sequence parameters The zero gas purge time is twice the AUTOCAL purge time. The sample gas purge time is equal to the AUTOCAL purge time. The AUTOCAL purge time is an adjustable parameter; its setting is described in the operating instructions, C79000- G52xx-C216, section 5.8.4.
  • Page 15 Probe purging function Definition of purging function of 50 vpm probe The maximum continuous concentration is 12.5 vpm. Although a measurement above such a concentration is still correct, the probe is damaged by an exposure of more than 10 minutes. Therefore measurements above 12.5 vpm must be carried out discontinuously and alternately with purging gas.
  • Page 16 Sequence parameters The zero gas purge time is twice the AUTOCAL purge time. The pre-purging phase is equal to the AUTOCAL purge time. The AUTOCAL purge time is an adjustable parameter; its setting is described in the operating instructions, C79000-G52xx- C216, section 5.8.4.
  • Page 17 Fault and maintenance requirements The faults and maintenance requirements of the H S sensor for the most part correspond to those of the O sensor and are described in the 'Maintenance' section of the operating instructions C79000-G52xx-C216-03. The following faults and maintenance requirements are specific to the H S sensor: Table 1 H S specific fault messages...

  • Page 18: Replacing The Sensor

    Replacing the sensor DANGER Danger of poisoning The replacement of the sensor module represents interference in the gas path. The sample gas circulating therein may contain toxic components that lead to death in certain concentrations. To ensure that the sample gas is free of toxic material when replacing the sensor module, the gas path must be flushed with ambient air or nitrogen for a period of about 10 minutes before performing the task.
  • Page 19 Proceed as follows to remove the old sensor: 1. Flush the gas path for about 10 minutes with zero gas (AUTOCAL) 2. When sample gas is no longer present in the gas path, disconnect the analyzer from the power supply. 3.

  • Page 20: Replacement Parts

    Proceed as follows to install the new sensor: 1. Tighten the new H S sensor by hand in the holder up to the mechanical limit (shaded) Figure 7 Sensor holder (shaded) 2. Plug the cable with the connector onto the sensor. 3.
  • Page 21 Appendix TüV Expert's Report Supplement 1 for Operating Instructions C79000-G52xx-C216-03 A5E02769382-03, 03/2012...
  • Page 22 Siemens AG Industry Sector Postfach 48 48 90026 NÜRNBERG Supplement 1 for Operating Instructions C79000-G52xx-C216-03 Supplement 1 for Operating Instructions C79000-G52xx-C216-03 A5E02769382, 03/2012 A5E02769382-03, 03/2012...

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