CO2 Meter GASLAB PolyXeta 2 PX2 EX Series User Manual
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CO2 Meter GASLAB PolyXeta 2 PX2 EX Series User Manual

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User Manual
PolyXeta®2 PX2 EX and TOX
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2024-05 V3.3.8
English
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YouTube Video
2024-05-06
GA_PX2_Ex_Tox_CO2Meter_E

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Summary of Contents for CO2 Meter GASLAB PolyXeta 2 PX2 EX Series

  • Page 1 User Manual PolyXeta®2 PX2 EX and TOX YouTube Video Version: 2024-05 V3.3.8 Release date: 2024-05-06 Language: English Name of file: GA_PX2_Ex_Tox_CO2Meter_E...

  • Page 2: Table Of Contents

    Table of Contents General ............................... 4 Safety ..............................4 Installer and Operator’s Responsibilities ..................... 4 Maintenance ............................4 Limited Warranty ..........................5 Part Disposal ............................5 Applicability ............................5 Intended Use ............................6 Approvals ............................. 6 2.2.1 Marking and Certificates according to ATEX Directive 2014/34/EU and Measuring Function ..6 2.2.2 Marking and Certificates according to IECEx only for PX2-1 ............
  • Page 3 Further Notes and Restrictions......................26 Functional Safety / SIL ........................27 Safety Function Analog Output Signal 4–20 mA ................28 Safety Function Relay Outputs for Operation as Stand-alone Gas Detector........29 Safety Function Central Bus for Operation as Stand-alone Gas Detector ........30 SIL Conditions ............................

  • Page 4: General

    Glossary ............................. 69 List of Revisions ..........................70 1 General 1.1 Safety The user manual must be carefully read, understood and followed by all persons who install, use, maintain and check the product. In addition, the user manual “PolyGard 2 and PolyXeta®2 Service-Tool and Display” must be ®...

  • Page 5: Limited Warranty

    1.4 Limited Warranty MSR-Electronic GmbH does not assume any liability in case of improper or incorrect use of the de-vice. The installer and operator are solely responsible for the design and use of the product. If the product is not used, maintained or repaired in accordance with the user manual, warranty and product liability claims as well as claims arising from any guarantees assumed by MSR-Electronic GmbH for the product will be forfeited.

  • Page 6: Intended Use

    2.1 Intended Use The PolyXeta®2 fixed gas detectors of the PX2-1 series are designed to detect and warn of toxic and combustible gases as well as of oxygen and refrigerants in the hazardous areas of zones 1 and 2 according to Directive 2014/34/EU.
  • Page 7 * Temperature range for ATEX approval: The actual temperature range may vary within these limits due to other approvals or temperature limits of the sensors used. Therefore, the smaller range lasered on the PolyX- ® 2 PX2 and on the sensor head is always valid. User Manual PolyXeta 2 PX2 EX and TOX 2024-05 V3.3.8...

  • Page 8: Terms And Special Conditions For Safe Use

    2.2.3 Terms and Special Conditions for Safe Use • The Type Examination Certificates for the Measuring Function do not include the use of the PCE06 con- figuration tool. • The gap lengths of the flameproof joints of this equipment are partly longer and the gap widths of the flameproof joints are partly smaller than required in Table 3 of EN 60079-1:2014.

  • Page 9: Combustible Gases

    2.2.6 Combustible Gases The following sensor heads for combustible gases are certified by DEKRA Testing and Certification GmbH acc. to DIN EN 60079-29-1 (Measuring Function for Explosion Protection, Test Certificate: BVS 15 ATEX E 129 X) and approved by the DNV SE acc. to the Marine Equipment Directive 2014/90/EU. Sensor head Measuring range Relative gas density...
  • Page 10 User Manual PolyXeta 2 PX2 EX and TOX 2024-05 V3.3.8 Page 10 | 71 ®...
  • Page 11 The following sensor heads for toxic gases are approved by DNV SE according to the Marine Equipment Directive 2014/90/EU. Sensor head Measuring range Relative gas density (Air =1) SX1-1-E1110-A Carbon monoxide (CO) 0–50 ppm 0.97 SX1-1-E1110-C Carbon monoxide (CO) 0–150 ppm 0.97 SX1-1-E1110-E Carbon monoxide (CO)

  • Page 12: General Description

    3 General Description 3.1 Device Description The fixed gas detector type "PX2" consists of a sensor head and an I/O unit. PX2-1 series is approved according to ATEX and IECEx for zones 1 and 2. PX2-2 series is certified by the ATEX Declaration of Conformity of the manufacturer. Both series are SIL2 certified.

  • Page 13: Mounting Instructions

    4 Mounting Instructions Caution: Check the device for completeness and accuracy using the delivery documents and the identification label on the device. Electronics can be destroyed by electrostatic discharge (ESD). Therefore, the installation work should be done only by persons connected to ground, e. g. by standing on a conductive floor or by taking appropriate grounding measures (acc.
  • Page 14 The mounting is done without opening the housing by using the 2 holes (D = 8 mm) of the fastening strap with suitable screws. The maximum permissible torque for this is 3.2 Nm. The exact dimensions are shown in the Figure 1. Cable Glands NPT 3/4”(ANSI B1.20.1) Internal Thread...

  • Page 15: Electrical Installation

    5 Electrical Installation Caution: The gas detector PX2-1 must only be opened under gas-free and voltage-free conditions. The gas detector PX2-2 should only be opened under gas-free conditions and it must be voltage-free. The enclosed cable gland must be checked for admissibility for the requested requirements before installation in position “Entry 3”.
  • Page 16 • For the recommended cross sections and lengths please refer to Table 6. • The analog output signal of warning devices without display can be used for the measurement control. To carry out these regular checks with the housing closed it is recommended to lead the analog signal out to the safe area via a cable.

  • Page 17: Connection Diagram

    5.2 Connection diagram Alarm Relay = R1 Parameter set Fault Relay = R2 Parameter set AC variant only for PX2-2 (zone 2) Gas Alarm Device PX2... 24 V DC 230 V AC Cable Gland Open NPT 3/4”(ANSI B1.20.1) NPT 3/4”(ANSI B1.20.1) Internal Thread Entry 2 Entry 4...

  • Page 18: Commissioning

    6 Commissioning 6.1 General Notes Before delivery all PX2 gas detectors without exception run through a complete functional test with an initial calibration of the sensors as documented in the enclosed calibration protocol. However, transportation, storage, installation or other environmental conditions may lead to (mostly small) deviations.

  • Page 19: Running-In Characteristics

    6.3 Running-in Characteristics After switching on or after an internal reset of the microcontroller, the PX2 detector always runs through a start routine with defined status of the outputs. The start always begins with the diagnosis and warm-up period. When they have succeeded and finished, the measurement operation starts. External intervention is not possi- ble during this start routine.

  • Page 20: Operating Modes

    7 Operating Modes Caution: The gas detector PX2-1 must only be opened under gas-free and voltage-free conditions. The gas detector PX2-2 should only be opened under gas-free conditions and it must be voltage-free. After completion of work, the gas detector must be closed again. The cover has to be completely screwed in and secured with the locking screw against inadvertent loosening.
  • Page 21 When the alarm evaluation is activated, only with alarm threshold > 0, the gas signal is checked with each measure- ment cycle, if it is ≥ alarm threshold (alarm evaluation for increasing concentration) respectively ≤ alarm threshold (alarm evaluation for falling concentration) and if exceeding respectively falling below, the alarm LED and the op- tional alarm relay are triggered.

  • Page 22: Alarm Acknowledgement

    7.2.1 Alarm Acknowledgement The acknowledgement of the function "Latching" requires that after the alarm has been triggered, the gas-free state has to be ensured with additional measures (e.g. portable handset that has already been turned on outside the danger zone). Only after having ascertained that there is no more gas present, you are allowed to reset the pending alarm only locally on the device having released the alarm by manually pressing (5 sec.) the internal button (see Figure 2) or by activating the "ESCAPE"...

  • Page 23: Faults

    7.4 Faults The PX2 detector includes a diagnostic module for the continuous monitoring of the relevant functions and parameters as well as a processor-independent watchdog. These features set the PX2 device into the safe mode "Fault" in case of an internal or external error. The following Table 9 shows all possible errors, possible causes, the related troubleshooting and the resulting device status.
  • Page 24 Display Fault Re- Analog Central Cause Remedy Output Error Code Text Mess. Sensor Head (SX1/SSAX1) DP1- Sensor element defective 0x8001h Sensor Over-tem- Temperature < range > 0x8040h pera-ture Measured value processing 0x8002h ADC Error System voltages <> Replace sen- 0x8004h Voltage Intern sor head...

  • Page 25: Notes On Usage

    8 Notes on Usage 8.1 Ambient Conditions The PX2 gas detector series is intended for continuous, fixed monitoring of gas-air mixtures under atmospheric conditions. The PX2-1 gas detector series is marked with the device category II 2 G and thus approved for use in hazardous areas of zones 1 and 2.

  • Page 26: Further Notes And Restrictions

    • In order to get correct measurement results of the combustible gases, an oxygen concentration of more than 10 % vol is necessary. Oxygen concentrations > 21 % vol can affect the reading. • If catalytic sensors for combustible gases are exposed to concentrations exceeding the measuring range, the reduced oxygen concentration leads to a falling measurement signal, although gas may still be present.

  • Page 27: Functional Safety / Sil

    9 Functional Safety / SIL Note: In conjunction with the remote sensor head option SSAX1, the PolyXeta ® 2 PX2 is not SIL-tested. If outputs are used as a safety feature, special conditions must be observed. They are described under this point and must be strictly observed.

  • Page 28: Safety Function Analog Output Signal 4-20 Ma

    9.1 Safety Function Analog Output Signal 4–20 mA The connected evaluation unit must monitor the 4–20 mA output signal if it is < 2,4/3,3 mA or > 21.2 mA. It is necessary to always check the 4–20 mA output signal during calibration. When using the analog output as a safety-related output, you aren’t allowed to change the following parame- ters in the menu "System parameters".

  • Page 29: Safety Function Relay Outputs For Operation As Stand-Alone Gas Detector

    9.2 Safety Function Relay Outputs for Operation as Stand-alone Gas Detector When using the alarm relays as safety-related output you must also use the fault relay and connect it to a manned station. This is essential in order to detect a device failure and take appropriate measures. The fault relay is energized during normal operation and the contact is closed.

  • Page 30: Safety Function Central Bus For Operation As Stand-Alone Gas Detector

    9.3 Safety Function Central Bus for Operation as Stand-alone Gas Detector When using the central bus as safety-related output you must also use the fault relay of the central controller and connect it to a manned station. This is essential in order to detect a device failure and take appropriate measures.

  • Page 31: Sil Conditions

    9.4 SIL Conditions • The application instructions and restrictions of this user manual must be considered. Regional and na- tional regulations for calibration and maintenance must be observed. • The simultaneous use of the 4-20 mA signal and the alarm relay for safety related warnings will not lead to an increased SIL level.

  • Page 32: Maintenance And Servicing

    10 Maintenance and Servicing Caution: For testing the sensor, do not use a lighter. If gassed with a lighter the sensor cannot be employed for reliable measurement and must first be recalibrated. The sensor may be damaged, and the cali- bration should then be repeated at much shorter intervals.

  • Page 33: Visual Inspection

    10.1 Visual Inspection Note: As described under 10.0, the visual inspection interval may deviate from the manufacturer's recommendation depending on the type of gas and ambient conditions and must always be determined by the person responsible for the gas warning system. The visual inspection should be carried out every 3 months by an instructed person and includes at least the following activities: •...
  • Page 34 The functional check should only be carried out every 6 months by qualified specialists only and includes at least the following activities: • Visual inspection according to chapter 10.1 • • Check zero-point : Apply zero gas. If the measured value on the display or on the STL06 Service-Tool is outside the permissible range , you have to perform the zero calibration.

  • Page 35: System Check / Proof Test

    10.3 System Check / Proof Test Measuring and testing equipment used within of the proof test (multimeters, etc.), must be in a proper state. To meet this requirement, the measuring devices have to be calibrated at regular intervals. The system control has to be carried out by a qualified person at least every 12 months and includes at least the following activities: •...

  • Page 36: Calibration

    Calculation of current signal at analog output, depending on the test gas concentration for combustible gases: Setpoint of current signal= (16 mA / measuring range * test gas conc. * ZP factor) + 4 mA ZP factor: conversion factor for replacement calibration (target gas / test gas) Test gas concentration - actual concentration of the test gas If the current signal differs by ±...

  • Page 37: Necessary Equipment And Gases

    10.4.2 Necessary Equipment and Gases • Gas application kit: Cal01_PX2 • Magnetic pen for menu operation: MSR_Pen_PX2, for version with display • STL06_PX2 Service-Tool or PCE06-PGX2 Software, for version without display • Kit for withdrawal of gas consisting of a flow and pressure regulator/indicator •...

  • Page 38: Exchange Of Sensor Head

    11 Exchange of Sensor Head 11.1 General Notes Instead of performing a field calibration you can simply and comfortably replace the sensor head in the field by a calibrated one. At the end of sensor lifetime, it is the same procedure. Caution: The gas detector PX2-1 must only be opened under gas-free and voltage-free conditions.

  • Page 39: Exchange Of Sensor Head Ssax1

    11.3 Exchange of Sensor Head SSAX1 • Select Special Mode. • Open cable gland. • Pull off the sensor head plug in the housing, stretch the cable slightly and carefully pull it out through the open cable gland. • Take the new sensor head out of the original packaging. •...

  • Page 40: Sensor Specifications

    12 Sensor Specifications 12.1 Catalytic Sensor Element (Pellistor) for Combustible Gases The integrated sensor works according to the catalytic bead principle. The ambient air to be monitored diffuses through the opening on the sensor head into the measuring chamber of the sensor. Here the combustible gases and vapours are catalytically burned at a heated detector (Pellistor).
  • Page 41 Sensor head CAS No. Target gas Test gas Factor Relative LEL/ Admissible range Reaction Run-in Flow rate Warm- Life- sensit. %v/v for calibration time sponse sponse time time time time ↑ time Meas. range Gas type Range Value indication ↑ t Zero Gain SX1-1-...
  • Page 42 Source: EN 60079-20-10. In the case of factory calibration, the sensor-specific variable sensor current is measured; in the case of further calibrations, a deviation in the specified range in relation to the test gas used may result. Expected lifetime in air under normal ambient conditions User Manual PolyXeta ®...

  • Page 43: Electrochemical Sensor Element For Oxygen

    12.2 Electrochemical Sensor Element for Oxygen The oxygen sensor works according to the principle of a galvanic fuel cell. Due to oxidation, an electric current proportional to the oxygen partial pressure flows. The electrolyte is partially consumed by the electrochemical process. This limits the service life of the sensor. Recommended calibration interval under optimum operating conditions: 12 months for E1195-A5/A7 or 6 months for E1195-A2/A3 Sample gas Oxygen...
  • Page 44 Sensor head Target gas Test gas Admissible range for calibra- Reaction Run in Flow rate Warm up Response time Life-time tion time time time Meas. Gas type Range Reading Gain ↑ t ↑ t ↓ t ↓ t zero range SX1-1- % vol % vol...

  • Page 45: Electrochemical Sensor Element For Toxic Gases

    12.3 Electrochemical Sensor Element for Toxic Gases The integrated sensor is a sealed electrochemical cell with 3 electrodes, sensing, reference and counter or with 2 electrodes, sensing and counter. The ambient air to be monitored diffuses through the opening on the sensor head into the measuring chamber of the sensor. The chemical process of the measurement is based on a redox reaction consisting of oxidation and reduction.
  • Page 46 Sensor Admissible range for Tempera- Storage Humidity Pressure Reac- Run- Flow Warm- Life- Target gas Test gas head calibration ture range tempera- range range tion rate up time sponse time ture time time time ↑ Meas. Gas type Range Reading range range Zero...
  • Page 47 In the case of factory calibration, the sensor-specific variable sensor current is measured; in the case of further calibrations, a deviation in the specified range may occur in relation to the test gas used. User Manual PolyXeta ® 2 PX2 EX and TOX 2024-05 V3.3.8 Page 47 | 71...
  • Page 48 CROSS SENSITIVITY - SENSOR ELEMENT Gas concentration of cross gas / reaction sensor SX1-1- E1110-A 50/-0.5 15/0.0 200/<1.0 100/11.5 10/-0.1 15/0.5 10/-0.3 50/-3.0 100/8.5 E1110-C 2/<0.5 25/0 20/<0.5 50/<10 100/<20 E1110-E 2/<0.5 25/0 20/<0.5 50/<10 100/<20 E1110-F 2/<0.5 25/0 20/<0.5 50/<10 100/<20 E1110-H...
  • Page 49 CROSS SENSITIVITY – SENSOR ELEMENT (VOC Sensors) Gas concentration of cross gas / reaction of sensor SX1-1- E1160-X 5/1,64 5/0,4 5/5,37 5/1,5 -/5,5 5/1,1 5/8,68 5/0,27 5/0,36 2/6,79 5/1,83 5/0,59 5/3,84 5/8,97 SX1-1- E1160-X 5/1,1 5/5,29 5/3,38 -/4,65 5/1,23 5/5,96 5/0,59 0,5/7,5 5/0,65...

  • Page 50: Display

    13 Display 13.1 Assembly and Disassembly For terminal connection and exchange of sensor head you have to dismount the display. This work may be carried out only when the device is voltage-free. Disassembly • Open cover. • Push the white retaining bracket upwards (arrow 1, red) and lift the display board slightly. •...

  • Page 51: Status Led

    13.2 Status LED The status LEDs indicate the operating state (see also chapter 6.3). Colour of Status-LED Interval Meaning Green Continuous = Operating voltage Flashing = Maintenance message Yellow Continuous = Failure Slowly flashing = Warming-up Fast flashing = Special mode = Alarm Table 25: Status LED The backlight of the display changes from...

  • Page 52: List Of Spare Parts, Accessories

    14 List of Spare Parts, Accessories 14.1 List of Spare Parts Item Sensor Head Measuring Range Order No. Included in Type Examination Certificates of Measuring Func- tion Methane (CH 0–100 % LEL SX1-1-P3400-A-1 n-hexane (C 0–100 % LEL SX1-1-P3435-A-1 Hydrogen (H 0–100 % LEL SX1-1-P3440-A-1 Propane (C...
  • Page 53 User Manual PolyXeta 2 PX2 EX and TOX 2024-05 V3.3.8 Page 53 | 71 ®...
  • Page 54 Item Sensor Head Measuring Range Order No. Included in Type Examination Certificates of Measuring Func- tion Carbon monoxide (CO) 0–50 ppm SX1-1-E1110-A-M Carbon monoxide (CO) 0–150 ppm SX1-1-E1110-C-M Carbon monoxide (CO) 0–250 ppm SX1-1-E1110-E-M Carbon monoxide (CO) 0–300 ppm SX1-1-E1110-F-M Carbon monoxide (CO) 0–500 ppm SX1-1-E1110-H-M...

  • Page 55: Accessories

    14.2 Accessories Note: When using an accessory of item No. 08 or 13, there may be deviations in the device characteristics (including re- sponse time and sensitivity of the sensor). Item Description Order No. Included in Type Examination Certificates of Measuring Function Gas application kit (calibration adapter) for PolyXeta 2 sensor head series...

  • Page 56: Specifications

    16 Specifications All specifications were collected under optimal test conditions. We confirm compliance with the minimum requirements of the applicable standard. Electrical Power supply 20–28 V DC. reverse polarity protected 24 V AC ± 10 % (21.6 V AC–26.4 VAC) •...
  • Page 57 Sensor head SX1 Housing / colour Stainless steel 1.44004 / natural Dimensions (Ø x H) 30 x 61 mm (1.18 x 2.40 in.) Weight Ca. 0.15 kg (0.33 lb.) Protection class IP64 Sinter Element: Stainless steel 1.4404 • Material • Min. density 4.15 g/cm³...
  • Page 58 When operating in representative conditions > IP64 protection, the recommended calibration and mainte- nance intervals are halved. User Manual PolyXeta 2 PX2 EX and TOX 2024-05 V3.3.8 Page 58 | 71 ®...

  • Page 59: Declarations Of Conformity

    17 Declarations of Conformity Figure 5: EU Declaration of Conformity PX2-1 Zone 1 (Page 1) User Manual PolyXeta 2 PX2 EX and TOX 2024-05 V3.3.8 Page 59 | 71 ®...
  • Page 60 Figure 6: EU Declaration of Conformity PX2-1 Zone 1 (Page 2) User Manual PolyXeta 2 PX2 EX and TOX 2024-05 V3.3.8 Page 60 | 71 ®...
  • Page 61 User Manual PolyXeta 2 PX2 EX and TOX 2024-05 V3.3.8 Page 61 | 71 ®...
  • Page 62 Figure 7: EU Declaration of Conformity PX2-1 Zone 1 (Page 3) User Manual PolyXeta 2 PX2 EX and TOX 2024-05 V3.3.8 Page 62 | 71 ®...
  • Page 63 Figure 8: EU Declaration of Conformity PX2-2 Zone 2 (Page 1) User Manual PolyXeta 2 PX2 EX and TOX 2024-05 V3.3.8 Page 63 | 71 ®...
  • Page 64 User Manual PolyXeta 2 PX2 EX and TOX 2024-05 V3.3.8 Page 64 | 71 ®...
  • Page 65 Figure 9: EU Declaration of Conformity PX2-2 Zone 2 (Page 2) User Manual PolyXeta 2 PX2 EX and TOX 2024-05 V3.3.8 Page 65 | 71 ®...
  • Page 66 Figure 10: UKCA Declaration of Conformity PX2-1 Zone 1 (page 1) User Manual PolyXeta 2 PX2 EX and TOX 2024-05 V3.3.8 Page 66 | 71 ®...
  • Page 67 Figure 11: UKCA Declaration of Conformity PX2-1 Zone 1 (page 2) User Manual PolyXeta 2 PX2 EX and TOX 2024-05 V3.3.8 Page 67 | 71 ®...

  • Page 68: List Of Abbreviations

    List of Abbreviations Units Milliampere Minute Square millimetre Nano-Ampere Newton-Meter parts per million Sec. Second Volt (tension) Voltampere V AC Volt for Alternating Current V DC Volt for Direct Current Products from MSR-Electronic GmbH PCE06 PolyGard 2/PolyXeta 2 PC-Software PCE06 ®...
  • Page 69 Glossary Adjustment Correction of the measured value by the deviation from the target value in order to obtain a correct measured value display (see also calibration). Calibration Determination of the deviation between the current value and the actual target value under specified condi- tions (equivalent to adjustment or a combination of calibration and adjustment when calibrating MSR-Electronic GmbH devices).
  • Page 70 Warm-up period (stabilization time) Time span from switching on the device PX2 in a specific atmosphere to the moment when the measured value reaches the specified deviations and is stable. Zero gas Test gas containing neither the target gas nor troublesome impurities (synthetic air: 20 % O , rest N or for oxygen sensors 99.9 % N...
  • Page 71 Product Returns If any Product fails under normal use, you may return it to us, by first submitting a customer case support ticket (click here). Policies and procedures for returns and refunds related to the same are located at www.co2meter.com/pages/faq. All returns for refund after thirty (30) days from shipment of the applicable product will incur a 25% re-stocking fee.

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