Atest Gaz SmArtGas 4 User Manual
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Atest Gaz SmArtGas 4 User Manual

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User Manual
Gas Detector
SmArtGas 4
Product code: PW-044-SG4-X
POD-061-ENG R03

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Summary of Contents for Atest Gaz SmArtGas 4

  • Page 1 User Manual Gas Detector SmArtGas 4 Product code: PW-044-SG4-X POD-061-ENG R03...
  • Page 2 We design, manufacture, implement and support: Systems for Monitoring, Detection and Reduction of gas hazards We invite you to familiarize yourself with our offer on www.atestgaz.pl Atest Gaz A. M. Pachole sp. j. ul. Spokojna 3, 44-109 Gliwice Poland tel.: +48 32 238 87 94 fax: +48 32 234 92 71 e-mail: contact@atestgaz.pl...

  • Page 3: Table 1: Optical Indicators Status Notation

    www.atestgaz.pl Remarks and reservations Read and understand this manual prior to connection and operation of the device. Keep the User Manual with the device for future reference. The manufacturer shall not be held responsible for any errors, damage or defects caused by improper selection of suitable devices or cables, errors in installation of equipment or any misuse due to failure to understand the document content.

  • Page 4: Table Of Contents

    www.atestgaz.pl Table of contents 1 Preliminary information..........................6 1.1 Functional properties..........................6 1.2 Marking of explosion protection......................7 1.3 Cable glands............................7 1.4 The principle of operation........................8 1.5 Gas detector status..........................8 1.6 Detected gases............................9 1.7 Output signal............................9 2 Safety..............................9 2.1 Conditions of the working environment....................10 3 Description of the construction......................12 4 Input-output interfaces.........................13 4.1 Electric interface..........................13...
  • Page 5 www.atestgaz.pl List of Figures Figure 1: Location and role of the device in Gas Safety System..............6 Figure 2: Information on the rating plate of the device................7 Figure 3: The construction of the device and its dimensions..............12 Figure 4: The construction of the gas detector – version with acoustic – and its dimensions.....12 Figure 5: Electric connections for version with digital port RS-485.............13 Figure 6: Electric connections for version with digital port Teta Bus............13 Figure 7: The way of connecting the detector depending on the direction of current flow......14...

  • Page 6: Preliminary Information

    Preliminary information The SmArtGas 4 gas detector is a device designed as a components of the Gas Safety System dedicated for operation in areas with potentially explosive atmospheres and under heavy-duty industrial conditions with broad range of ambient parameters variations (high temperatures, corrosive gases, moisture and dust). The key feature of the device, indispensable to guarantee safe and unproblematic operation is its conformity to requirements of the ATEX EU Directive.

  • Page 7: Marking Of Explosion Protection

    www.atestgaz.pl Storing, in the memory of the gas detector such parameters as: substance CAS number, location name, serial number, the intervals between mandatory calibrations, etc. Marking of explosion protection Figure 2: Information on the rating plate of the device Description Number of the notified body responsible for supervision of the device Numbers of Ex certificates issued for the device Ex code for the device...

  • Page 8: The Principle Of Operation

    www.atestgaz.pl The principle of operation The gas detectors measures the concentration of a given component, and then turns it – depending on the variety (described below) – to understandable signal for other devices of the gas safety system. In addition to the implementation of the measurement, the detector analyses the value of the measured concentration and may provide information about exceeding the following threshold values: warning 1,...

  • Page 9: Detected Gases

    Measurement parameters configuration document (DOK-6073). Information about sensors properties can be found in User Manual – Sensors used in gas detectors produced by Atest Gaz (POD-062-PL). Output signal RS-485 – this port allows easy integration with data transmission systems, visualization systems in ACP, industrial controllers –...

  • Page 10: Conditions Of The Working Environment

    www.atestgaz.pl Before painting the facility walls make sure that the device is properly secured against unintentional painting or paint splashing. Before use of silicon or silicon-based materials (paints, adhesives, sealant, etc.), make sure that the device is properly secured against unintentional coating. The recommended position for the detector operation is the position with its measuring head looking down (see Figure 4).
  • Page 11 • pollution of the detector – e.g. the presence of silicone can cause damage to catalytic detector – see User Manual – Sensors used in gas detectors produced by Atest Gaz (POD-062-PL), • crossover effect – the sensor also reacts to other gases, e.g. an electrochemical sensor of carbon monoxide can also react with hydrogen –...

  • Page 12: Description Of The Construction

    www.atestgaz.pl Description of the construction ~170 Earth clamp 127 (spacing of mounting holes) Cable gland Locking screws Bushing Measuing head ~107/130* M48x1 *version with display Figure 3: The construction of the device and its dimensions ~205 Figure 4: The construction of the gas detector – version with acoustic – and its dimensions .

  • Page 13: Input-Output Interfaces

    www.atestgaz.pl Input-output interfaces Electric interface Assignment of contacts on the terminal block depends on the device configuration (see details is Section 10). All possible options of the terminal block layouts are shown on illustrations below. 4.1.1 Digital port RS-485 Figure 5: Electric connections for version with digital port RS-485 Port Name Description...

  • Page 14: Rs-485

    www.atestgaz.pl RS-485 Communication via the RS-485 employs either the Modbus ASCII or the Sigma Bus protocol (when the detector is used with other devices of the Sigma system). For detectors with the RS-485 outputs the output signal has a digital form (see appendix [4]). In general, the detector status is specified by means of the following variables: Measurement results expressed as percentage of the full range.

  • Page 15: Relay

    www.atestgaz.pl The current signal may be dependent on alarms (discrete current values). The signal values are given in the table below. Current output Status 2 mA Critical failure 4 mA No alarm 9 mA Warning 1 11 mA Warning 2 13 mA Alarm 22 mA...
  • Page 16 www.atestgaz.pl • detectors of gases with densities less than air density must be mounted nearby the room ceiling with the maximum distance between the face of the measuring head to the room ceiling from about 20 to 30 cm, • detectors of gases heavier than air must be mounted nearby the room floor with the maximum distance between the face of the measuring head to the room floor from about 20 to 30 cm, detectors should me mounted at locations where gathering (accumulation) of gas is expected due to architectural properties of the facility (e.g.
  • Page 17 www.atestgaz.pl The detectors can be optionally furnished with a mounting bracket to mount the detector within a certain distance from the wall (e.g. in case of rough or uneven walls). Eventually, a shield can be made to protect the detector head against water splashes and prevent from penetration of water into the detector interior when water drips down walls.

  • Page 18: Figure 8: Grounding Connection And Correct Cable Laying

    www.atestgaz.pl Figure 8: Grounding connection and correct cable laying The cable shield shall be isolated and slightly protrude from the cable entry inside the detector. The shield cannot be connected to any device point. A detailed description of the preparation of the cable and connecting the cable to the detector is provided in appendix [9].

  • Page 19: Commissioning

    www.atestgaz.pl Unused screw terminals must be tightened home. Commissioning New detectors and factory calibrated and checked. The detector behaviour after power on is described in Table 3. If a test of the gas detection system is required, supply test gas to the gas detector and make sure that the detector behaviour is in line with the specification.

  • Page 20: Troubleshooting

    www.atestgaz.pl Setting of jumpers Operation mode SOURCE of electric current (default setting) SINK for electric current Table 8: Configuration of the embedded source of electric current 6.4.2 End-line terminals The communication port is furnished with end-line terminals. Configuration of these terminals needs opening of the device housing to insert a jumper into the terminal connector (TERM.).
  • Page 21 Gas detectors manufactured by Atest Gaz are classified to the A category of instruments (see appendix [10]) with respect to environments conditions for calibration.
  • Page 22 www.atestgaz.pl tightness of cables in cable glands, retighten glands when necessary, symptoms of a flameproof housing damage. 6.6.3 Replacement of fast wearing parts Please refer to Table 12 for the recommended lifetime and replacement schedule of fast wearing parts. It is highly recommended to entrust all jobs related to the measuring head to the service staff of the manufacturer or to properly trained personnel.

  • Page 23: Utilization

    Gas detectors SmArtGas 4 are designed for operation in areas with potentially explosive atmospheres. Thus, its explosion-proof properties must be verified and maintained on regular basis in the following way: checking and cleaning inserts made of sintered material (dry cleaning with a brush or a cloth), checking of the cable gland with verification of its sound installation and lack of damage.

  • Page 24: Technical Specification

    www.atestgaz.pl Technical specification Power supply • Voltage V 15 – 50 V • Power 0,48 – 4 W Environment In operation Storage • Ambient temperatures Ta Specified depending on: 0 – 40 • the temperature class of the device (see ATEX below), •...

  • Page 25: Table 10: Technical Specification

    www.atestgaz.pl Integrated signalling equipment D=FLED.A: 70 dB 1 m distance (acoustic) Protection class Dimension See figure 4 Cable glands • Cable diameter range See section 10 • External thread M20 x 1.5 Acceptable cables 0.5 – 2.5 mm (cable lugs 2 x 1 mm or 2 x 0.75 mm should be used for double wires) Enclosure material...

  • Page 26: List Of Consumables

    List of consumables Consumables Lifetime Manufacturer Product code Breathing flameproof enclosure with an Depends ambient Atest Gaz PWS-046-A insert made of sintered material, size 5 conditions Breathing flameproof enclosure with an Depends ambient Atest Gaz PWS-055-A insert made of sintered material, size 2.5...

  • Page 27: Product Marking

    Measurement parameters See details and Ta in DOK-6073 „Measurement parameters configuration” configuration Without Cable gland See details in POD-066-ENG „Cable glands used in gas detectors produced by Atest Gaz” Table 14: Method of product's marking . 27|28 User Manual: POD-061-ENG R03...

  • Page 28: Appendices

    Appendices DEZG136-ENG – EC Declaration of Conformity – SmArtGas 4 PU-Z-114-ENG – SmArtGas 4, ProGas 4 – non-standard execution PU-Z-093-ENG – Instructions for removing the lock of a detector with a catalytic sensor PU-Z-113-ENG – Register map of gas detectors of PW-017, PW-044 and PW-093 type PU-Z-073-ENG –...
  • Page 29 EU Declaration of Conformity Atest Gaz A. M. Pachole sp. j. declares with full responsibility, that the product: (Product description) (Trade name) (Type identifier or Product code) Gas Detector SmArtGas 4 PW-044 complies with the following Directives and Standards: in relation to Directive 2014/34/EU –...
  • Page 30 SmArtGas 4, ProGas 4 – non-standard execution SmArtGas 4 Gas Detector PW-044-SG4- AI WI MC G Converter module PELm Catalytic, 40% LEL Display Without Measuring head With sinter, made of stainless steel Enclosure Aluminium, spray epoxy – white Temperature...
  • Page 31 www.atestgaz.pl Instructions for removing the lock of a detector with a catalytic sensor Detectors using a catalytic sensor (more details concerning the sensor – see Appendix PU-Z-054-ENG) are equipped with a system protecting against its damage caused by a gas concentration exceeding the measuring range of the sensor and before entering non-monotonic part of the catalytic sensor characteristics.
  • Page 32 Test Test mode Warm_Up Sensor warm-up 11..15 Inessential data, can take any value Atest Gaz A. M. Pachole sp. j. tel.: +48 32 238 87 94 p. 1/1 Appendix: PU-Z-113-ENG R01 ul. Spokojna 3, 44-109 Gliwice, Poland fax: +48 32 234 92 71 VAT No.: PL 9691433231...
  • Page 33 – red Gas overload The display has light-sensitive area, which ensures appropriate backlit of the display during operation in an unlit room. Atest Gaz A. M. Pachole sp. j. tel.: +48 32 238 87 94 p. 1/5 Appendix: PU-Z-073-ENG R04 ul.
  • Page 34 The display shows LOCK information. Display description contains sample content. The state occurs only in case of detectors with a catalytic sensor. The lock mechanism is active. Atest Gaz A. M. Pachole sp. j. tel.: +48 32 238 87 94 p.
  • Page 35 0,0 ppm turned of. AWK2100H The display shows AWK2100H message. Atest Gaz A. M. Pachole sp. j. tel.: +48 32 238 87 94 p. 3/5 Appendix: PU-Z-073-ENG R04 ul. Spokojna 3, 44-109 Gliwice, Poland fax: +48 32 234 92 71 VAT No.: PL 9691433231...
  • Page 36 Description Sensor lock – sensor off, the last measurement latched Atest Gaz A. M. Pachole sp. j. tel.: +48 32 238 87 94 p. 4/5 Appendix: PU-Z-073-ENG R04 ul. Spokojna 3, 44-109 Gliwice, Poland fax: +48 32 234 92 71 VAT No.: PL 9691433231...
  • Page 37 10 minor negative zero drift bit 11 temperature overload bit 13 calibration time is exceeded Atest Gaz A. M. Pachole sp. j. tel.: +48 32 238 87 94 p. 5/5 Appendix: PU-Z-073-ENG R04 ul. Spokojna 3, 44-109 Gliwice, Poland fax: +48 32 234 92 71 VAT No.: PL 9691433231...
  • Page 38 www.atestgaz.pl Example of connection cables for gas detector PW-017 and PW-044 with 4-20 mA output Introduction It is recommended that all system components are made according to the design created by person with the necessary skills and competence. Connection cable In case where project does not specify this, you can use the following types of shielded cables for connecting gas detectors: An example of a cable symbol...
  • Page 39 www.atestgaz.pl Example of connection cables for gas detector PW-017 and PW-044 with relay output Introduction It is recommended that all system components are made according to the design created by person with the necessary skills and competence. Connection cable In case where project does not specify this, you can use the following types of shielded cables for connecting gas detectors: An example of a cable symbol Approximate external...
  • Page 40 www.atestgaz.pl Guidelines to the cabling of the system with an RS-485 interface Introductory It is recommended that all system components are made according to the design created by person with the necessary skills and competence. Connection cable The data transmission line for the gas detectors working in the RS-485 standard should be performed only with the use of a shielded twisted pair cable.
  • Page 41 www.atestgaz.pl Power supply of the gas detector As a standard, in gas detectors with digital data transmission, it is assumed that the voltage cannot drop below 12 V (see the documentation of the detector). The power consumption of the detector is constant within the range of acceptable voltages.
  • Page 42 For the systems with RS-485 interface, it is necessary to make sure that A and B transmission signals as well as + and – power supply were led with the use of the cables which belong to one pair. Atest Gaz A. M. Pachole sp. j. tel.: +48 32 238 87 94 p.
  • Page 43 It is unacceptable to leave a reserve inside the detector. Atest Gaz A. M. Pachole sp. j. tel.: +48 32 238 87 94 p.
  • Page 44 www.atestgaz.pl Classification of chemicals used at Atest-Gaz Because of the need to present a consistent and high level of maintenance services, to ensure the safety of the calibration process and to create a basis for a rational calculation of the costs of this process, Atest-Gaz developed the "Classification of Chemical Substances"...
  • Page 45 www.atestgaz.pl Category Description Terms of facility calibration No precipitations, no strong winds, Cylinder gases, temperature over – 10 C¹. stable environment In other cases, calibration at a location that meets the above conditions (necessary to remove the detectors). No precipitations, no strong winds, Cylinder gases, temperature over + 10...

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