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ExTox NH3-20-IS Instruction Manual

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Instruction Manual
ExTox Transmitter
NH3-20-IS

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Summary of Contents for ExTox NH3-20-IS

  • Page 1 Instruction Manual ExTox Transmitter NH3-20-IS...
  • Page 2 Instruction Manual ExTox Transmitter NH3-20-IS Foreword We thank you very much for your confidence in our products and us, the ExTox Gasmess- Systeme GmbH. The Transmitter NH3-20-IS as well as all other ExTox -Products and services stand for our high quality targets. Our business is the health protection of mankind, protection of the envi- ronment and installations.

  • Page 3: Table Of Contents

    Instruction Manual ExTox Transmitter NH3-20-IS Content Introduction     Features of the Transmitter NH3-20-IS     Indications and Facilities of the Transmitter     Configuration     Access to the Parameters     Settings     Measuring Mode and Special Modes  ...

  • Page 4: Introduction

    We kindly ask you not to repair the transmitter or to perform any changes which go beyond the measures described herein. Otherwise you endanger your own safety and your warranty claims of merchantability. In such cases please contact ExTox or authorised ExTox Service Partner. Third parties take the responsibility for correct performance of work when mainte- nance and repairs are done by them.

  • Page 5: Features Of The Transmitter Nh3-20-Is

    Furthermore it allows the selective ammonia detection in all fluid mediums (pH-range 7 to 12). NH3-20-IS serves for the preferably early detection of ammonia leakages. An accurate meas- urement of ammonia concentration should not and cannot be performed by this system. Due to this the indicated ppm-values are of minor importance.

  • Page 6: Indications And Facilities Of The Transmitter

    Configuration Selection keys The Transmitter NH3-20-IS consists of measuring electrode and measuring converter ET-F. The display serves for indication of actual measuring values during measuring mode. During configuration and calibration of the transmitter the parameters to be set and the correspond- ing value are indicated.

  • Page 7: Settings

    Instruction Manual ExTox Transmitter NH3-20-IS Release the key  After successful locking the Operation LED changes from blinking light to permanent light.  Settings The table shows all parameters. Their meaning and the possibilities of setting are described in the same order as they appear on the display when they are selected by means of the key "MODE".

  • Page 8: Measuring Mode And Special Modes

    Alarm and fault relays are closed. Please pay attention to the fact that the task of the transmitter NH3-20-IS mainly is quick detection of leakages when interpreting the measured value. Accuracy of the issued measured value is limited.

  • Page 9: Adjustment

    4. In case one or more of the following states are recognized, it has to be checked via the ammonia test set whether the sole is free from ammonia by means of a probe. UL out of the above mentioned typical range  NH3-20-IS is in over-scale of measuring range  NH3-20-IS indicates values above 15 ppm. ...

  • Page 10: Adjustment With Calibration

    ExTox Transmitter NH3-20-IS Adjustment with Calibration The described procedure following below is used on factory sided calibration by ExTox. It is hardly possible to perform this on site and requires experience on handling of the IS-Electrode and reference solutions. This should only be performed by trained personal and in particular cases.
  • Page 11 Instruction Manual ExTox Transmitter NH3-20-IS Zero Point Adjustment Put the transmitter now into the fitting again. Change now to the indication of measured values and wait until a stable measured value is set. In case the value is different from zero, correct the setting by using the arrow keys.

  • Page 12: Installation And Initial Operation

    Attention: Deviations of this information and the actual operating conditions may lead to malfunctions. In this case please contact ExTox to clarify the case and to adjust the transmit- ter if necessary. The same is valid for permanent change of the operating conditions.

  • Page 13: Electrical Installation

    The clamp connection is described in the Transmitter Data Sheets (DB). Connection of the power supply and the current output is done via 3-line, double shielded line. The ExTox transmitter cable disposes of the described features. The wire cross-section and the corresponding line resistance determine the maximum dis- tance between transmitter and control unit (DB).

  • Page 14: Maintenance

    This is the reason why the elec- trodes of the transmitter are excluded of warranty. Each transmitter is adjusted by ExTox before delivery takes place. The state of transmitter is documented in the test certificate of the transmitter, which is enclosed in each delivery.

  • Page 15: Visual Check

    You as user of the gas detection system bear the responsibility for the correct performance of the maintenance. ExTox as manufacturer can only place all necessary details to build up your specific maintenance concept at your disposal. We are glad to support you with this task and to submit a maintenance quotation acc.

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