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Summary of Contents for MSR ELECTRONIC PolyGard 2 MC2
- Page 1 User Manual ® PolyGard 2 Sensors Sensors of the SC2 and MC2 Series for Combustible and Toxic Gases (incl. Oxygen) as well as for Refrigerants Version: 2023-11 Release date: 2023-11-28 Language: English Name of file: GA_MC2_SC2_E...
- Page 2 Imprint Up-to-date data sheets and user manuals can be found in the download area of www.msr-24.com. ® PolyGard is a registered trademark of MSR-Electronic GmbH. MSR-Electronic GmbH Buergermeister-Schoenbauer-Str. 13 D 94060 Pocking Phone: +49 8531 9004-0 www.msr-electronic.de Technical changes, misprints and errors excepted. In case of arbitration only the German wording shall be valid and binding.
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Page 3: Table Of Contents
Table of Contents General ........................... 5 1.1 Intended Use ............................5 1.2 Safety ................................ 5 1.3 Installers and Operators’ Responsibilities ..................5 1.4 Services ..............................6 1.5 Limited Warranty ........................... 6 1.6 Part Disposal ............................6 Functional Description ......................7 2.1 General .............................. - Page 4 6.5 Exchange of Sensor Head ........................21 6.5.1 Sensor SC2 ..........................21 6.5.2 Sensor MC2 ..........................21 6.5.3 Perform Function Test ......................21 Inspection and Service......................22 7.1 Inspection ............................. 22 7.2 Maintenance and Calibration ......................22 Troubleshooting ........................23 8.1 Indications for the SC2 ........................
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Page 5: General
General For installation and operation of the device, it is essential to read the user manual and follow the instructions contained therein. PolyGard ® 2 devices must be employed within the intended use. Due to on-going product development, MSR-Electronic GmbH reserves the right to change specifica- tions without notice. -
Page 6: Services
1.4 Services ® It is recommended to check the PolyGard 2 devices regularly. Due to regular maintenance any per- formance deviations may easily be corrected. Re-calibration and part replacement in the field may be implemented by a qualified technician and with the appropriate tools. Alternatively, the easily removable plug-in Sensor with the sensor element may be returned for service to MSR-Electronic GmbH. -
Page 7: Functional Description
2 Functional Description 2.1 General The Sensor includes electronics with a measuring amplifier and µController for processing the meas- ured values in addition to the gas sensor element. All relevant data and measured values of the sen- sor element are stored in a fail-safe way in the internal memory of the µController and are transmit- ted digitally to the Board of the SC2 via the MSR local bus. -
Page 8: B: Electrochemical Sensor Element For Toxic Gases And Oxygen
B: Electrochemical Sensor Element for Toxic Gases and Oxygen The integrated sensor is a sealed electrochemical cell with 3 electrodes, sensing, reference and coun- ter 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. -
Page 9: D: Infrared Sensor Element For Methane, Propane, Carbon Dioxide And R32
D: Infrared Sensor Element for Methane, Propane, Carbon Dioxide and R32 The integrated sensor is based on the principle of the infrared absorption of gases and achieves the highest requirements concerning accuracy and reliability. The sensor technology uses the individual absorption spectrum of the atomic bonds of the gas to be monitored and determines the exact con- centration present through its precise quantitative analysis. -
Page 10: Installation
3 Installation Check the order for completeness and correctness using the delivery papers and unit la- bels. Caution: Electronics can be destroyed by electrostatic discharge (ESD). Therefore, the installation work should be done only by persons connected to ground (according to DIN EN 100015). 3.1 Mounting Instructions See user manual of the SB2, MSC2, MSB2 or WSB2 Boards. - Page 11 LEL (EU) / Sensitivity % / Me- Relative Gas Density Combustible Gases Chemical Formula % vol thane (Air= 1) Acetone 2.00 Ammonia 0.60 Petrol Vapours n.d. Benzene 2.70 Butadiene 1.92 Butyl acetate 4.01 Cyclohexane 2.90 Cyclopentane 2.42 Ethane 1.05 Ethyl acetate COOC 3.04 Ethanol (Ethyl alcohol)
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Page 12: Mounting Of Sensors
Freon Group Calibration Gas MSR Code Relative Gas Density (Air= 1) FR % LFL S2020 Respective Gas > 1.15 S2061 > 1.15 FR02 FR03 S2063 R1234yf > 1.15 S2064 R123 > 1.15 FR04 FR06 S2070 > 1.15 S2077 R134a > 1.15 FR07 FR08 S2080... -
Page 13: Electrical Connection
4 Electrical Connection 4.1 Plug Connection (SC2) on SB2, MSB2, MSC2, WSB2 Caution: SC2 Sensors are equipped with a reverse polarity protected connector (3-pin). Do not plug it in by force. Ensure correct positioning. • Plug in the SC2 Sensor at the designated plug-in terminal of the Board (observe plug polarity). The connector must engage. -
Page 14: Commissioning
5 Commissioning 5.1 General Only trained technicians should perform the following when commissioning: • Check for correct mounting location. • Check for correct connection. • Install the Sensors if not already installed ex works. • Check connector for correct engagement (SC2). •... -
Page 15: Calibration
6 Calibration The STL06 Service-Tool or PCE06 Software are available for convenient on-site calibration (see user manual of STL06 Service-Tool or PCE06 Software). There is also the possibility to exchange the Sensor against a calibrated one on site. The Sensor used can then be calibrated by the user himself or by MSR-Electronic GmbH and then reused again. -
Page 16: Run-In Time
6.1 Run-in Time Caution: Prior to calibration, the sensors must be supplied with power voltage without interruption for run-in and stabilisation. The run-in time depends on the sensor element and is shown in the following tables. A: Catalytic Sensor Element (Pellistor) Run-in time Warm-up Flow rate... -
Page 17: Calibration Work
6.2 Calibration Work Prior to calibration you have to activate the mode “Special Mode” at the Board, only then the calibra- tion menu is enabled. During the Special Mode, the Board does not issue alerts. • Wait for the running-in time calibration to elapse. •... -
Page 18: B: Zero Calibration For Freon Sensors (With Laser Engraving 2000 Ppm)
B: Zero Calibration for Freon Sensors (with Laser Engraving 2000 ppm) Caution: This does not apply to Freon sensors with laser engraving 20–2000 ppm and manufactur- ing date (calibration protocol) before 1 of June 2023 (see chapter 6.2.1, point A). Instead of the digital zero-point calibration, the zero-point calibration is carried out with a potenti- ometer. -
Page 19: Calibration (Gain) With Surrogate Gas For Catalytic Sensor Element (Pellistor)
6.2.3 Calibration (Gain) with Surrogate Gas for Catalytic Sensor Element (Pellistor) For certain gases it is possible to perform a cross calibration with methane (see Table 1). The concentration of the calibration gas is calculated according to the following formula: Gas concentration ∗... - Page 20 A distinction must be made between the environment in the application and the test conditions in the laboratory. The initialisation process of the sensor to set it to the correct environment takes about 5 minutes. For measurements under real conditions, the sensor should be started in the envi- ronment of the application (see Figure 5, Real conditions).
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Page 21: Exchange Of Sensor Head
6.5 Exchange of Sensor Head Instead of the on-site calibration, the used Sensor can be simply and conveniently replaced by a calibrated one. 6.5.1 Sensor SC2 The communication of the local bus (SC2 <> Board) is continuously monitored during operation and results in an immediate error message on the Board in case of fault or interruption. -
Page 22: Inspection And Service
7 Inspection and Service For regular maintenance and calibration of the Sensor by trained technicians, we recommend con- cluding a service contract with MSR-Electronic GmbH or their authorised partners. According to EN 45544-4, inspection and service have to be executed at regular intervals. The max- imum intervals have to be determined and respected by the person responsible for the gas warning system according to the legal requirements. -
Page 23: Troubleshooting
8 Troubleshooting 8.1 Indications for the SC2 The SC2 has got no diagnostic indications; they are only available on the SB2, MSC2, MSB2 or WSB2 Board. 8.2 Indications for the MC2 The 4–20 mA output of the MC2 can be used as diagnostic indicators. Output current Device error 2 mA... -
Page 24: Specifications
9 Specifications 9.1 General All specifications were collected under optimal test conditions. We confirm compliance with the minimum requirements of the applicable standard. REGULATIONS Directives EMC Directives 2014/30/EU (for SC2 only in connection with the Boards from MSR) UKCA Compliance with: (see corresponding datasheet) EN 378 EN 14624 EN 45544-1, -3... -
Page 25: Digital Sensor Sc2
9.2 Digital Sensor SC2 ELECTRICAL Power supply 5 V DC from Board, e.g. SB2/MSB2, reverse polarity protected Power consumption • Catalytic (Pellistor) 200 mA, max. (1.0 VA) • Electrochemical 10 mA, max. (0.05 VA) 160 mA, max. (0.8 VA) • Semiconductor 60 mA, max. -
Page 26: Sensor Element
9.4 Sensor Element A: Catalytic Sensor Element (Pellistor) for Combustible Gases SENSOR ELEMENT Gas type and measuring range See datasheet DB_MC2/SC2_Ex Measuring principle Pellistor (catalytic bead principle) Temperature range -30 °C to +60 °C (-22 °F to 140 °F) Humidity range 0–95 % RH not condensing Pressure range 90–110 kPa... - Page 27 SC2-/ % LEL / ppm ± % sig. % LEL / < ± % ≤ sec. ≤ sec. ≤ sec. ≤ sec. ± % LEL < % / Air = 1 MC2-X- sig. month P3400-A 0–100 % LEL 1 (CH ) 0.1 2 (CH ) 15...
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Page 28: B: Electrochemical Sensor Element For Toxic Gases And Oxygen
B: Electrochemical Sensor Element for Toxic Gases and Oxygen SENSOR ELEMENT Gas type and measuring range See datasheet MC2/SC2_Tox Measuring principle Electrochemical Storage time Ca. 6 months Poisoning Electrochemical sensor elements are susceptible to poisoning by organic solvents. SC2- / ±... - Page 29 SC2- / °C % RH °C > years Air = 1 Months MC2-X- E1110-A 0–50 -20 / +50 15–90 90-110 10-30 0.97 E1110-C 0–150 -20 / +50 10–95 80-120 0-20 0.97 E1110-E 0–250 -20 / +50 10–95 80-120 0-20 0.97 E1110-F 0–300 -20 / +50...
- Page 30 SC2- / % vol ± % sig. ppm < ± % sig. ≤ sec. ≤ sec. ≤ sec. ≤ sec. ± ppm < % / MC2-X- month E1195-A2 0–25 0.01 n.d. n.d. E1195-A3 0–25 0.01 n.d. n.d. E1195-A5 0–25 0.01 n.d.
- Page 31 CROSS SENSITIVITY - SENSOR ELEMENT (SC2/MC2) SC2-/ MC2-X- 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-A 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 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 E1125-A...
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Page 32: C: Semiconductor Sensor Element For Freon Gases, Ethylene And Ammonia
C: Semiconductor Sensor Element for Freon Gases, Ethylene and Ammonia SENSOR ELEMENT Gas type and measuring range See datasheet MC2/SC2_Freon, LFL or MC2/SC2_HL Measuring principle Semiconductor Repeatability < ± 20 % signal Temperature range -30 to +60 °C (-22 °F to 140 °F) Humidity range 15–90 % RH (non-condensing) Pressure range... -
Page 33: D: Infrared Sensor Element For Methane, Propane, Carbon Dioxide (And R32)
D: Infrared Sensor Element for Methane, Propane, Carbon Dioxide (and R32) Sensor Element SC2/MC2 Methane/Propane/Carbon Dioxide/R32 – Premium SENSOR ELEMENT Gas type and measuring range See datasheet MC2/SC2_IR_Premium Measuring principle Infrared Accuracy ± 5 % Repeatability < ± 2 % signal Drift in air <... - Page 34 Sensor Element SC2/MC2 Methane/Propane/Carbon Dioxide SENSOR ELEMENT Gas type and measuring range See datasheet DB_SC2/MC2_IR Measuring principle Infrared (NDIR) Repeatability < ± 5 % signal time (plastic housing) 90 s Drift in air n.d. Pressure range 90–110 kPa (influence + 1.6 % on measured value per kPa) Storage temperature range See temperature range (next table) Storage time...
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Page 35: E: Mps™-Sensor Element
E: MPS™-Sensor Element SENSOR ELEMENT Gas type See datasheet DB_MC2/SC2_MPS Measuring range 0–100 % LEL Measuring principle MPS™ Resolution 0.1 % LEL Accuracy ± 2 % LEL Repeatability ± 2 % of signal Drift No drift Temperature range -40 °C to 70 °C (-40 °F to 158 °F) Humidity range 0–100 % RH non-condensing Pressure range... - Page 36 CROSS SENSITIVITY – SENSOR ELEMENT Approximate reaction of sensor to cross gas in percentage. SC2-/ MC2-X- M200-B R1234ze M205-B M400-A M405-A > 300 > 300 > 200 M440-A M480-A The table does not claim to be complete. Other gases, too, can have an influence on the sensitivity. The mentioned cross sensitivity data are only reference values valid for new sensors.
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Page 37: Ukca Declaration Of Conformity
10 UKCA Declaration of Conformity Figure 6: UKCA Declaration of Conformity ® User Manual PolyGard 2 Sensors 2023-11 Page 37 | 40... -
Page 38: List Of Abbreviations
List of abbreviations Units hour Kilopascal Inch Metre Milliampere Minute Millilitre Square millimetre Millivolt Nanoampere Parts per million s, sec. Second Voltampere V AC Volt for Alternating Current V DC Volt for Direct Current % vol Volume percent °C Degree Celsius °F Degree Fahrenheit Products from MSR-Electronic GmbH... -
Page 39: Glossary
Glossary Gas application time Time period during which test gas must be supplied to the sensor. Run-in time Time the sensor needs to be continuously supplied with the operating voltage for stabilisation be- fore calibration. Response time t Time span from the occurrence of a gas mixture at the gas inlet to the moment when the display shows 90 %. -
Page 40: Revision List
Revision List Version Date Chapter Reason for change / Notes New format, list of abbreviations, glossary, revision list 17.11.2021 µGard removed, Disposal update, Chap. Calibration AO new, NO 5 ppm and 20,000 ppm added, Data Cross Sensitivities updated, Data IR Sensor updated 08.03.2022 Sensor H... - Page 41 Tu Distribuidor MSR-Electronic de Confianza Teléfonos España (+34) 609 604 054 Perú (+51) 1 6449147 Colombia (+57) 300 929 5080 Email comercial.espana@fricaval89.com comercial.peru@fricaval89.com comercial.colombia@fricaval89.com www.fricaval89.com...
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