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Bacharach MGS SERIES Installation And Operation Manual

Manual is about: Multi-Channel Input Single- and Dual-Alarm Controllers

Summary of MGS SERIES

  • Page 1

    Multi-channel input single- and dual-alarm controllers installation and operation manual instruction 6709-9000 revision 1 – october 25, 2012 product leadership • training • service • reliability.

  • Page 2

    Mgs series controller manual 2 6709-9000 rev 1 warranty policy bacharach, inc. Warrants this instrument, excluding sensors, to be free from defects in materials and workmanship for a period of one year from the date of purchase by the original owner. The sensors have a warranty period of one year fr...

  • Page 3

    Mgs series controller manual 6709-9000 rev 1 3 prior to shipping equipment to bacharach, contact our office for an rma # (returned merchandise authorization). All returned goods must be accompanied with an rma number. Pack the equipment well (in its original packing if possible), as bacharach cannot...

  • Page 4: Table Of Contents

    Mgs series controller manual 4 6709-9000 rev 1 table of contents section 1. Introduction ........................................................................ 5 1.1. O verview .................................................................................................. 5 1.2. 2-c hannel and ...

  • Page 5: Section 1.  Introduction

    Mgs series controller manual 6709-9000 rev 1 5 section 1. Introduction 1.1. Overview the mgs series controllers provide local alarm status indications (via multi-colored, per-channel leds) as well as single-level or dual-level digital (relay) alarm outputs based on 1, 2, 4, or 6 input signals and 1 ...

  • Page 6

    Mgs series controller manual 6 6709-9000 rev 1 figure 1. Sample configurations (1,2-channel).

  • Page 7

    Mgs series controller manual 6709-9000 rev 1 7 figure 2. Sample configurations (4,6-channel) mgs controllers have either one or two relay outputs: one for single- level alarm controllers (“alarm”), and 2 for dual-level alarm controllers (“alarm high” and “alarm low”). Unlike the alarm leds that prov...

  • Page 8: 1.4.  Components

    Mgs series controller manual 8 6709-9000 rev 1 figure 3. Sample front panels showing status leds for dual-alarm configurations, the alarm low relay output “trips” or “energizes” if any of the inputs exceed the alarm threshold set by the low alarm pot. Similarly, the alarm high relay output “trips” o...

  • Page 9

    Mgs series controller manual 6709-9000 rev 1 9 components descriptions power input provides power to the mgs controller power led power status indicator channels (max) 1-2 channel units 4-6 channel units sensor input(s) max 2 max 6 max alarm levels single dual single dual set point pot(s) 1 2 1 2 al...

  • Page 10

    Mgs series controller manual 10 6709-9000 rev 1 note: figure 4 shows components associated with a dual- alarm configuration. For single-alarm configurations, the low alarm leds are not present. Jp1 on the single-alarm configuration is the delay jumper. Figure 5. 2-channel, dual-alarm mgs controller ...

  • Page 11: 1.5.  Specifications

    Mgs series controller manual 6709-9000 rev 1 11 1.5. Specifications specification 1-2 channel 4-6 channel product type 1-2 channel alarm controller 4-6 channel alarm controller max channels 2 6 inputs 4-20 ma 4-20 ma display led alarm indicators led alarm indicators ambient temperature range -20 to ...

  • Page 12: 2.1.  Installation Warnings

    Mgs series controller manual 12 6709-9000 rev 1 section 2. Mounting instructions 2.1. Installation warnings warning: explosion hazard! Do not mount the mgs controller in an area that may contain flammable liquids, vapors, or aerosols. Operation of any electrical equipment in such an environment cons...

  • Page 13: 2.3.  Mounting Dimensions

    Mgs series controller manual 6709-9000 rev 1 13 sensors must be located within the appropriate wire lengths from the central control unit (if used). In all cases the sensor supplied is designed for maximum sensitivity to a particular gas. However, in certain circumstances false alarms may be caused ...

  • Page 14

    Mgs series controller manual 14 6709-9000 rev 1 figure 6. Mounting dimensions (2-channel unit).

  • Page 15

    Mgs series controller manual 6709-9000 rev 1 15 figure 7. Mounting dimensions (6-channel unit).

  • Page 16: Section 3.  Wiring

    Mgs series controller manual 16 6709-9000 rev 1 section 3. Wiring 3.1. 1- and 2-channel units (single- and dual-alarm) wiring to sensors/transmitters controller terminal block controller pin number signal sensor/ transmitter cn1 1 +ve supply +v in 2 4-20 ma signal 4-20 ma out 4 -ve input gnd in cn2 ...

  • Page 17

    Mgs series controller manual 6709-9000 rev 1 17 note: the potential from -ve to +ve is approximately 15 vdc. Figure 9. Wiring (2-channel, dual-alarm unit shown) 3.2. 4- and 6-channel units (single- and dual-alarm) wiring to sensors controller terminal block controller pin number signal sensor/ trans...

  • Page 18

    Mgs series controller manual 18 6709-9000 rev 1 figure 10. Wiring (6-channel, single-alarm unit shown).

  • Page 19

    Mgs series controller manual 6709-9000 rev 1 19 figure 11. Wiring (6-channel, dual-alarm unit shown) note: an external horn is provided with 4- and 6-channel units. Refer to the next section for details..

  • Page 20

    Mgs series controller manual 20 6709-9000 rev 1 3.3. External horn (for audible alarms) horn specifications (test conditions at 25 ° c) specification description housing black abs power rating 10 w (rms), 15 w (peak) voltage 12 vdc (rated), 6-16 vdc range current 200 ma max (@ 12 vdc) sound pressure...

  • Page 21: 4.1.  Overview

    Mgs series controller manual 6709-9000 rev 1 21 section 4. Configuration and operation 4.1. Overview the following topics are explained in this section: • changing alarm limits (pots and cal header) • setting output delays (jumper) • fail-safe operation (jumper) • muting the audible alarm (key) • re...

  • Page 22

    Mgs series controller manual 22 6709-9000 rev 1 pots used to set alarm limits max # input chans number of alarms alarm type p3 p7 p8 2 1 high x 2 low x high x 6 1 high x 2 low x high x the alarm range is set over the voltage range of 0.4 v to 2.0 v. A voltage of 0.4 v equals 0 ppm and 2.0 v equals f...

  • Page 23

    Mgs series controller manual 6709-9000 rev 1 23 4.3. Changing alarm level for 2-channel, 1-alarm units step instructions 1 connect voltmeter leads to pin 4 (-ve) and pin 1 (+ve) on the cal header. 2 using the flat-blade screwdriver, adjust potentiometer p3 until the reading on the dc voltmeter corre...

  • Page 24

    Mgs series controller manual 24 6709-9000 rev 1 4.4. Changing alarm level for 2-channel, 2-alarm units step instructions 1 connect voltmeter leads to pin 4 (-ve) and pin 1 (+ve) on the cal header. 2 using the flat-blade screwdriver, adjust potentiometer p7 until the reading on the dc voltmeter corre...

  • Page 25

    Mgs series controller manual 6709-9000 rev 1 25 4.5. Changing alarm level for 6-channel, 1-alarm units step instructions 1 connect voltmeter leads to pin 4 (-ve) and pin 1 (+ve) on the cal header. 2 using the flat-blade screwdriver, adjust potentiometer p7 until the reading on the dc voltmeter corre...

  • Page 26

    Mgs series controller manual 26 6709-9000 rev 1 4.6. Changing alarm level for 6-channel, 2-alarm units step instructions 1 connect voltmeter leads to pin 4 (-ve) and pin 1 (+ve) on the cal header. 2 using the flat-blade screwdriver, adjust potentiometer p7 until the reading on the dc voltmeter corre...

  • Page 27: 4.7.  Output Delays

    Mgs series controller manual 6709-9000 rev 1 27 4.7. Output delays controllers with only single-level alarm capabilities use jumper jp1 to enable/disable a 3-minute output delay for the input level alarm. This delay provides a hysteresis preventing nuisance toggling of the alarm. The delay is enable...

  • Page 28: 4.8.  Fail Safe Operation

    Mgs series controller manual 28 6709-9000 rev 1 figure 17. Alarm response (dual-level alarms) 4.8. Fail safe operation the jp1 jumper on the 6-channel controller with dual-level alarm capabilities is used to enable/disable the high-level alarm relay (rl1) to operate in fail-safe mode. Fail-safe jump...

  • Page 29

    Mgs series controller manual 6709-9000 rev 1 29 4.9. Muting the audible alarm (key switch) if service is being carried out on the system or the user does not require a local audible alarm then it can be muted using the key switch. In the default position, the audible alarm is enabled. In the other p...

  • Page 30: Eclaration

    Mgs series controller manual 30 6709-9000 rev 1 d eclaration of c onformity the manufacturer of the products covered by this declaration: bacharach, inc. 621 hunt valley circle new kensington, pa 15068 year conformity is declared: 2012 product(s): mgs model(s): mgs controller the undersigned hereby ...

  • Page 31

    Mgs series controller manual 6709-9000 rev 1 31.

  • Page 32

    Mgs series controller manual 32 6709-9000 rev 1 world headquarters 621 hunt valley circle, new kensington, pennsylvania 15068 phone: 724-334-5000 • toll free: 1-800-736-4666 • fax: 724-334-5001 website: www.Mybacharach.Com • e-mail: help@mybacharach.Com.