MSA Chillgard m-100 Operating Manual
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MSA Chillgard m-100 Operating Manual

MSA Chillgard m-100 Operating Manual

Refrigerant sensor
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CHILLGARD
M-100
Refrigerant Sensor
GB
Operating Manual
Order No.: 10086391/02

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Summary of Contents for MSA Chillgard m-100

  • Page 1 ® CHILLGARD M-100 Refrigerant Sensor Operating Manual Order No.: 10086391/02...
  • Page 2 For the Declaration of Conformity, please visit the product page on MSAsafety.com. MSA Europe GmbH Schlüsselstrasse 12 8645 Rapperswil-Jona Switzerland © MSA 2017. All rights reserved...

  • Page 3: Table Of Contents

    Control Modules ............................13     4.3. RS-485 Output Specifications ........................14     4.4. RS-485 Addressing (if applicable) ....................... 15     4.5. Gas Selection Jumpers ..........................15     Technical Specifications ............................. 16     Ordering Information ............................18 Chillgard M-100...

  • Page 4: Safety Regulations

    Product liability claims, warranties also as guarantees made by MSA with respect to the product are voided, if it is not used, serviced or maintained in accordance with the instructions in this manual.

  • Page 5: Description

    The sensor is available with a number of options including:  Refrigerant gas detected  Temperature and Relative Humidity sensors  Output – current or voltage analogue output or RS-485 ModBUS digital output  De-icer option – for low temperature applications. Chillgard M-100...

  • Page 6: Locating The Sensor

    Near heat sources, such as appliances, direct sunlight or concealed pipes or chimneys  On walls or structures subject to excessive vibration  In areas where air does not circulate freely, such as behind doors or in corners. 2.2. Mounting the Sensor 60.3 55.9 Fig. 2 Installation Dimensions Chillgard M-100...
  • Page 7 (10) Verify cover is securely attached to base by pulling on the top and bottom of the cover as shown in Fig. 4.  To remove the cover, grasp it along the recesses and pull it away from the base ( Fig. 4).  Alternatively, place a screwdriver into the slots indicated in Fig. 4 and twist. Chillgard M-100...
  • Page 8 Fig. 3 Connecting Wires to Terminal Fig. 4 Attaching or Removing the Cover Connector (1) Grasp here to release (4 places) (2) Pull on top to verify attachment (3) Pull on bottom to verify attachment (4) Twist to release (4 places) Chillgard M-100...
  • Page 9 DESCRIPTION ----- Current Output ----- ----- Voltage Output ----- ModBUS Label Fig. 5 Wiring Connections Chillgard M-100...
  • Page 10 Temperature as current (4 – 20 mA = -30 °C to +70 °C) Temp (+) out (v) Temperature as voltage (2 – 10 V = -30 °C to +70 °C) RS-485 out b RS-485 ModBUS (b) RS-485 out a RS-485 ModBUS (a) Chillgard M-100...

  • Page 11: Calibration

    The sensor is designed to operate for long periods of time with no zero drift. However, the sensor should be checked periodically to verify that the unit detects refrigerant gas. The calibration check can be done with the use of the following MSA equipment: ...

  • Page 12: Calibration Procedure

    Fig. 6 Applying Calibration Gas (6) Allow gas level to return to normal. Regulator 1.5 LPM (P/N 467896) (7) Reactivate any equipment connected to the outputs or Span Or Zero Gas Cylinder reconnect the wiring to the outputs. Chillgard M-100...

  • Page 13: Operation

    The sensor output can be connected with a control module providing a complete monitoring system ( Operating Manual of the control module). During a fault, the:  current output drops to 2 mA or  voltage output drops to 1 V. Chillgard M-100...

  • Page 14: Rs-485 Output Specifications

    -300 to +650 (°C * 10) Humidity 0x002D 0 to 100 (%RH) Gas Numbers R-22 = 6, R-404a = 27 R-134a = 15 R-123 = 12 Baud rate: 19,200; each byte is eight bits with no parity and two stop bits. Chillgard M-100...

  • Page 15: Rs-485 Addressing (If Applicable)

    Fig. 7 Jumper Settings for the RS-485-Addresses 4.5. Gas Selection Jumpers On R-22, R-404A and R-134A the gas of interest can be changed by altering the Position of jumpers J1 and J2 as shown in Fig. 8. Fig. 8 Gas Selection Jumper Settings Chillgard M-100...

  • Page 16: Technical Specifications

    0 to 65°C (-30 degrees lower temp specification with de-icer option) Relative Humidity (RH) 0 to 99% non-condensing Pressure Operating 700 -1080 hPa Warm-up time 30 minutes Pollution Degree Installation Category Operating Range 0 to 1000 ppm Limit of Detection 20 ppm Minimum Alarm 50 ppm Chillgard M-100...
  • Page 17  CE approval, complies with the applicable LVD and EMC directives Approvals (see also Declaration of Conformity)  Certified to UL Std 61010-1 and CSA 61010  Complies with ASHRAE 15-2004 *) Other gases are available. Please check with factory for availability. Chillgard M-100...

  • Page 18: Ordering Information

    ORDERING INFORMATION Ordering Information Description Part No. R-22 in Nitrogen 10086542 R-123 in Nitrogen 10086543 R-134a in Nitrogen 10086544 R-404A in Nitrogen 10086545 Chillgard M-100...
  • Page 19 ORDERING INFORMATION Chillgard M-100...
  • Page 20 For local MSA contacts, please visit us at MSAsafety.com...

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