Refrigerant Gas Detector
for Machinery Rooms, Cold Rooms & Freezers
Refrigerant Leak Detection |
Quick Start |
O/N: 1100-2291 | October 2018 Revision 0 |
Guide |
MGS-450 Quick Start Guide
Languages
This quick start guide has been translated into the following languages: Deutsch, Español, Français, Italiano and Nederlands. To download a translated document, scan here or visit http://bit.ly/2RSrzur.
1. Introduction
The MGS-450 refrigerant gas detector is designed for use in refrigeration applications and may be used as a standalone device, connected to the MGS-408 controller, or connected to a facility’s BMS / BAS. It enables compliance with refrigerant safety codes (ASHRAE 15 and EN 378) and features audible and visual alarms to alert personnel in the event of a refrigerant leak.
2. Safety Instructions
DANGER: The MGS-450 is NOT certified or approved for operation in oxygenenriched atmospheres. Failure to comply may result in severe injury or death.
WARNING: Use this product ONLY for the purposes and under the conditions listed in the user manual. Failure to comply may result in injury and / or damage to the product.
WARNING: The MGS-450 has not been designed to be intrinsically safe for use in areas classified as being hazardous locations. For your safety, DO NOT use in hazardous locations.
WARNING: Consult a qualified professional before connecting the MGS-450 to devices not mentioned in this manual. Failure to comply may result in injury and / or damage to the product..
CAUTION: Except for the maintenance detailed in this manual, this product should ONLY be opened and / or serviced by authorized personnel. Failure to comply may void the warranty.
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CODE COMPLIANCE: Comply with all local and national laws, rules and regulations associated with this equipment. Operators should be aware of the regulations and standards in their industry / locality for the operation of the MGS-450.
TECHNICIAN USE ONLY: TheMGS-450mustbeinstalledbyasuitablyqualifiedtechnician who will install this unit in accordance with these instructions and the standards in their particular industry / locality. This document is only intended as a guide and the manufacturer bears no responsibility for the installation or operation of this unit.
Failure to install and operate the unit in accordance with these instructions and with industry guidelines may cause serious injury or death and the manufacturer will not be held responsible in this regard.
3. Component Overview
(MAG #1) |
(MAG #2) |
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COMPONENT DESCRIPTION |
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1 |
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M16 Cable Glands (×6) |
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2 |
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Rubber Gasket (IP66 Version Only) |
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3 |
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Internal Alarm Buzzer |
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4 |
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Power Connections (×2) |
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5 |
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Digital Connection (Modbus) |
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6 |
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Analog Connection |
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7 |
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Tactile Switch #1 |
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8 |
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Ribbon Cable Connection (To Sensor) |
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9 |
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Tactile Switch #2 |
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10 |
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Relay 3 Connection (FAULT) |
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11 |
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Relay 2 Connection (HIGH) |
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12 |
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Relay 1 Connection (LOW) |
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13 |
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Magnetic Switch #1 |
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14 |
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Magnetic Switch #2 |
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15 |
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M20 Cable Glands (×2) |
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4. Product Specifications
Size (H×W×D): |
8.3″ × 8.9″ × 3.4″ (210 × 225 × 85 mm) |
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Weight: |
1.05 lbs (480 g) |
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Indicators: |
Multi-color Status LED |
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Internal Alarm Buzzer: 72dB @ 3.9″ (10 cm) |
Alarm Delay: |
Configurable (0 to 15 minutes) |
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Inputs: |
Tactile Switches (×2), Magnetic Switches (×2) |
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Outputs: |
Analog Output: 4 to 20 mA, 0 to 5V, 0 to 10V, 1 to 5V (default) or 2 to 10V |
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Bluetooth® |
Bluetooth® Low Energy, BLE 4.2 |
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Modbus: |
Connection: RS-485 terminal block |
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Baud Rate: 9,600 (default) or 19,200 |
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Data Bits: 8 |
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Parity: None (default), odd or even |
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Stop Bits: 1 (default) or 2 |
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Retry Time: 500 ms (minimum) |
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Power Supply: |
19.5 to 28.5 VDC or 24 VAC ±20%; 4W |
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Wiring (Power): |
2-core cable, 16 to 28 AWG |
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Wiring (Relays): |
2-core cable, 16 to 28 AWG |
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Wiring (Modbus): |
Recommended: Belden 3106A (or equivalent) 3-core, 2 twisted pair + |
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ground, shielded cable with 120 Ω characteristic impedance, 16 to |
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28 AWG |
Enclosure: |
Material: ABS |
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Protection: IP41 or IP66 |
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Temperature: |
Semiconductor: -40 to 122°F (-40 to 50°C) |
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Electrochemical: Ranges vary by gas type and / or concentration, |
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see the MGS-400 User Manual (P/N 1100-2294) for a full list of |
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temperature ranges. |
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Infrared: -40 to 122°F (-40 to 50°C) |
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Catalytic Bead: -40 to 122°F (-40 to 50°C) |
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Humidity: |
5 to 90% RH, non condensing |
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Pressure: |
23.6 to 32.5″Hg (800 to 1,100 mbar) |
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Elevation: |
0 to 6,560′ (2,000 m) altitude |
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