User Manual PolyGard
®
2 Sensors 2023-11 Page 3 | 40
Table of Contents
1 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
2 Functional Description ........................................................................................................... 7
2.1 General ..................................................................................................................................................... 7
2.2 Measuring Mode ..................................................................................................................................... 7
2.3 Special Mode ........................................................................................................................................... 7
2.4 Sensor Element ....................................................................................................................................... 7
A: Catalytic Sensor Element (Pellistor) for Combustible Gases ..................................... 7
B: Electrochemical Sensor Element for Toxic Gases and Oxygen .................................. 8
C: Semiconductor Sensor Element for Freon Gases, Ethylene and Ammonia ............. 8
D: Infrared Sensor Element for Methane, Propane, Carbon Dioxide and R32 ............ 9
E: MPS™ Sensor Element .......................................................................................................... 9
3 Installation ........................................................................................................................... 10
3.1 Mounting Instructions ........................................................................................................................ 10
3.2 Mounting of Sensors .......................................................................................................................... 12
4 Electrical Connection ........................................................................................................... 13
4.1 Plug Connection (SC2) on SB2, MSB2, MSC2, WSB2 ................................................................... 13
4.2 Terminal Connection (MC2) .............................................................................................................. 13
4.3 Registration of the Sensors SC2/MC2 ............................................................................................ 13
5 Commissioning ..................................................................................................................... 14
5.1 General .................................................................................................................................................. 14
5.2 Required Instruments for commissioning (calibration)............................................................. 14
6 Calibration............................................................................................................................ 15
6.1 Run-in Time .......................................................................................................................................... 16
6.2 Calibration Work ................................................................................................................................. 17
6.2.1 Zero Calibration .................................................................................................................... 17
A: General ................................................................................................................................. 17
B: Zero Calibration for Freon Sensors (with Laser Engraving 2000 ppm) ................. 18
6.2.2 Gain Calibration .................................................................................................................... 18
6.2.3 Calibration (Gain) with Surrogate Gas for Catalytic Sensor Element (Pellistor) ... 19
6.2.4 Extended Calibration for Semiconductor Sensor Element ........................................ 19
6.3 Calibration Analog Output ................................................................................................................ 19
6.4 Test of MPS™ Sensors ........................................................................................................................ 19
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