P/N: 1100-0999
Revision 0
June 5, 2015
IP66-Rated ABS Enclosure with Local
Sensor
Flame
Proof/
Explosion
Proof Ex d
Enclosure with Local
Sensor
Magnetic
Wand
CAUTION: DO NOT USE the MGS-550 in oxygen-enriched environments of >21% oxygen. High “o -scale” readings may indicate an explosive concentration.
WARNING: Strictly follow the instructions in the User Manual (part number 1100-1000).
1: OPERATING AREA AND CONDITIONS
The Bacharach MGS-550 is an instrument for the continuous monitoring of toxic and combustible gases, oxygen and refrigerants in ambient air. The instrument is housed in a rugged ABS or aluminum enclosure for indoor and outdoor applications. The instrument can be connected to a Bacharach monitoring system or a Programmable Logic Controller (PLC). With the integrated alarm relay configuration, the instrument can be operated as a stand-alone unit (with additional local alarm signaling). The instrument is designed to be installed in non-classified, non-hazardous, permanent locations.
The instrument is powered by 19.5 to 28.5 VDC or 24 VAC (± 20%). The measured gas concentration is converted to a 4 to 20 mA, 0 to 5 V, 0 to 10 V, 1 to 5 V, 2 to 10 V analog and digital Modbus RTU output signal. The instrument accepts wire sizes of 16 to 24 AWG (0.2 to 1.5 mm2).
2: SAFETY INSTRUCTIONS
USER MANUAL: Before using this equipment, carefully read and strictly follow the User Manual (part number 1100-1000). The user must fully understand and strictly observe the instructions. Use the equipment only for the purposes listed and under the conditions specified in that document.
CODE COMPLIANCE: Comply with all local and national laws, rules and regulations associated with this equipment.
GENUINE PARTS: Use only genuine Bacharach spare parts and accessories, otherwise proper functioning of the equipment may be impaired.
FLAME PROOF AND EXPLOSION PROOF JOINTS: Joints of the flame proof/explosion proof enclosure are not in accordance with the relevant minimum or maximum values of EN/IEC 60079-1. The joints are not intended to be re-worked by the user.
EXPLOSIVE DIRECTIVES: As long as no EC-Type Examination Certificate per Annex II, clauses 1.5.5, 1.5.6 and 1.5.7 of Directive 94/9/EC exists: the measuring function of the gas detection transmitter for explosion protection, according to Annex II, clauses 1.5.5, 1.5.6 and 1.5.7 of Directive 94/9/EC is not covered.
When using the product in areas subject to explosion hazards, refer to the following:
●Instruments or components for use in explo- sion-hazard areas which have been tested and approved according to national, European or international Explosion Protection Regulations may only be used under the conditions specified in the approval and with consideration of the relevant legal regulations.
●The instruments or components may not be modified in any manner. The use of faulty or incomplete parts is forbidden. The appropriate regulations must be observed at all times when carrying out repairs on these instruments or
3: MOUNTING
ENVIRONMENTAL CONSIDERATIONS: Carefully consider the full range of environmental conditions to which the instruments will be exposed.
TARGET GAS CONSIDERATIONS: The physical data of the gas or vapor to be detected must be observed.
APPLICATION CONSIDERATIONS: The specifics of the application (for example, possible leaks, air movement/draft, etc.) must be observed.
ACCESSIBILITY CONSIDERATIONS: The degree of accessibility required for maintenance purposes must be granted.
ACCESSORY CONSIDERATIONS: The types of optional and accessory equipment that will be used with the system must be kept in mind.
SENSOR POSITIONING: When installing the instrument or the remote sensor, the sensor opening should always be pointing downward.
SUN SHIELD CONSIDERATIONS: If the instrument is exposed to direct sunlight, the use of a sunshield is recommended.
120.6 mm (4.75 in)
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.53 |
in) |
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0mm |
(4 |
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115 |
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FULL-SIZE
MOUNTING
TEMPLATES --
DO NOT
RESCALE
Mounting
Point (Ex d)
Mounting
Point (ABS)
Mounting
Point (ABS)
Mounting
Point
(Ex d)
144.1 mm (5.67 in)
4: WEIGHTS AND DIMENSIONS (APPROXIMATE)
COMPONENT |
WIDTH |
HEIGHT |
DEPTH |
WEIGHT |
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mm |
in |
mm |
in |
mm |
in |
kg |
lbs |
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General Purpose Enclosure |
210 |
8.3 |
225 |
8.9 |
85 |
3.4 |
1 |
2 |
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Explosion Proof Encosure |
125 |
4.9 |
190 |
7.5 |
90 |
3.5 |
1.6 |
3.5 |
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