Bacharach MGD-100 User manual

1: OPERATING AREA AND CONDITIONS
The Bacharach MGD-100 is an instrument for the
connuous monitoring of refrigerant, combusble,
and toxic gases. The system is available with one or
two levels of alarm, and consists of 1 to 6 remote gas
sensors connected to and powered by a controller.
The controller is powered by 12 VDC or 100-230 VAC
50-60 Hz (specified at me of order).
P/N: 6109-9002
Revision 0
January 13, 2016
2: SAFETY INSTRUCTIONS
USER MANUAL: Before using this equipment,
carefully read and strictly follow the User Manual
(part number 6109-9000). The user must fully
understand and strictly observe the instrucons.
Use the equipment only for the purposes listed and
under the condions specified in that document.
CODE COMPLIANCE: Comply with all local and
naonal laws, rules and regulaons associated with
this equipment.
GENUINE PARTS: Use only genuine Bacharach spare
parts and accessories, otherwise proper funconing
of the equipment may be impaired.
TECHNICIAN USE ONLY: This unit must be installed
by a suitably qualified technician who will install this
unit in accordance with these instrucons and the
standards in their parcular industry/country. Opera-
tors of the unit should be aware of the regulaons
and standards in their industry/country for the
operaon of this unit. These notes are only intended
as a guide and the manufacturer bears no responsi-
bility for the installaon or operaon of this unit.
Failure to install and operate the unit in accordance
with these instrucons and with industry guidelines
may cause serious injury including death and the
manufacturer will not be held responsible in this
regard.
SAFE MOUNTING: This monitor must be connected
by a marked, suitably located and easily reached
switch or circuit-breaker as means of disconnecon.
WARNING: Strictly follow the
instrucons in the User Manual
(part number 6109-9000) available
at www.MyBacharach.com.
CAUTION: DO NOT MOUNT the
MGD-100 in an area that may
contain flammable liquids or
vapors. Operaon of electrical
equipment in such an area cons-
tutes a safety hazard.
GAS DETECTOR and CONTROLLER
QUICK INSTALLATION GUIDE
3: WEIGHTS AND DIMENSIONS
Type/Enclosure Dimensions Weights
IP41 3.35” x 5.59” x 2.09”
86 x 142 x 53 mm
6.3 oz
180 g
IP66 6.89” x 6.5” x 3.29”
175 x 165 x 82 mm
1 lb 6 oz
629 g
IP66 w/ Splash
Guard
6.89” x 8.9” x 3.29”
175 x 225 x 82 mm
1 lb 9 oz
700 g
IP66 w/ Remote
Sensor
6.89” x 6.1” x 3.29”
175 x 155 x 82 mm
1 lb 11 oz
790 g
IP66 w/ Ex d
Remote Head
6.89” x 6.1” x 3.29”
175 x 155 x 82 mm
2 lb 10 oz
1185 g
IP66 w/ PRV
Sensor Head 6.89” x 6.1” x 3.29”
175 x 155 x 82 mm
2 lb 0.3 oz
916 g
IP66 Airflow/
Duct (See Table)
6.89” x 4.9” x 3.29”
175 x 125 x 82 mm
1 lb 4 oz
578 g
Ex d (Enclosure) 5.12” x 6.3” x 3.54”
130 x 160 x 90 mm
9 lb 4 oz
4200 g
ENVIRONMENTAL CONSIDERATIONS: Care-
fully consider the full range of environmental
condions 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 applicaon (for example, possible leaks,
air movement/dra, etc.) must be observed.
ACCESSIBILITY CONSIDERATIONS: The degree
of accessibility required for maintenance
purposes must be granted.
ACCESSORY CONSIDERATIONS: The types of
oponal and accessory equipment that will be
used with the system must be kept in mind.
ELECTRONIC CONSIDERATIONS: The system
contains sensive electronic components that
can be easily damaged. Do not touch nor
disturb any of these components.
Mount the MGD-100 and Controller according
to the above consideraons, product dimen-
sions (see Secon 3), maximum wiring lengths
(see Secon 5), and the corresponding mount-
ing dimensions shown in the illustraons that
follow.
4: MOUNTING
3.39 in (86.0 mm)
2.09 in (53 mm)
1.4 in
(36.00 mm)
1.69 in (43.0 mm)
4.72 in (120 mm)
0.28 in
(7.0 mm)
4.07 in (103.50 mm)
1.0 in
(25.00 mm)
1.0 in
(25.00 mm)
018 in
(4.50 mm)
�
0.18 in
(4.50 mm)
�
0.35 in
(9.0 mm)
�
0.31 in
(8.0 mm)
5.1 in
(130 mm)
5.4 in
(138 mm)
5.9 in (151 mm)
3.5 in
(90 mm)
5.1 in (130 mm)
6.3 in (160 mm)
Mounng Holes
2 x Clearance for M6
(146 mm)
(122 mm)
(42 mm)
(59 mm)
(123 mm)
(101 mm)
(144 mm)
M42 thread
4.8 in
5.7 in
5.7 in
2.3 in
1.7 in
4.0 in
mounng slots =
0.35 in (9mm) long x
0.24 in (6mm) wide
Use 3/16-inch screws
(5mm - 6mm )
4.8 in
1”BSP thread
Exd Remote
Head
PRV/IP66
Vent Pipe
Monitoring 1
in BSP Head
Standard
IP41 Housing
Ex d Housing
IP66 Housing
Inches 12 x 12 12 x 24 18 x 18 24 x 24 24 round
1 x 1
1 x 2 1.5 x 1.5 2 x 2 Pi x 1 x 1
Area (ft2) 1 2 2.25 4 3.14
Feet
Units Duct Size
Supported CFM & Duct Sizes for Duct Mount Housing
Standard
IP41 Sensor
Housing
1-2 Sensor
Controller Housing
0.6 in
(15.5 mm)
0.6 in (15.0 mm)
0.5 in (12.7 mm)
2.9 in (74.5 mm)
0.2 in
(4.8 mm)
0.2 in
(5.0 mm)
2.0 in
(50.0 mm)
0.4 in (10.0 mm)
Screw
Screw
0.4 in (9.0 mm)
0.5 in (12.7 mm)
0.6 in
(15.0 mm)
1-2 Sensor
Controller
Housing
O 0.18 in (4.60 mm)
O 0.20 in (5.10 mm)
Mounng
Hole
9.47 in (240.50 mm)
8.85 in (224.70 mm)
10.26 in (260.50mm)
5.13 in (130.25 mm)
9.55 in (242.50 mm)
4-6 Sensor
Controller Housing

World Headquarters
621 Hunt Valley Circle
New Kensington, PA 15068 USA
Phone: [phone] • Fax: [phone]
Toll Free: 1-800-736-4666
Website: www.MyBacharach.com
E-mail: [email protected]
5: WIRING
1: Strip 0.2 to 0.25 inches (5 to 7 mm)
of wiring insulaon.
2: Connect the wires as indicated.
SHIELD WIRE WARNING: Con-
nect the shield of the power wires
to the earth ground of the central
control system (e.g., chassis,
ground bus bar, etc.).
WARNING: The mains power supply
cable should be of an approved type
based on local regulaons. Connec-
on to the mains power supply
must be made via an approved,
readily-accessible, switched and
fused plug and socket (or as per
local wiring regulaons) which
should be within 10 feet (3 meters)
of the control unit.
CABLE OPENINGS: The metal IP51 controller
housing provides a number of PG7 openings for
cable glands or plugs. Each MGD-100 IP41 transmit-
ter will have a single opening for an M20 cable
gland, as well as an oponal knockout opening.
Each MGD-100 IP66 tranmier has 3 openings
These openings can be used for field wiring, direct
aachment of a sensor or wiring of a remote
sensor. Unused openings must be closed with a
suitable plug and gasket, maintaining the IP or Ex d
rang.
114A Georges Street Lower
Dun Laoghaire • Co Dublin • Ireland
Phone: [phone] • Fax: [phone]
NOTE: To make wiring connecons,
you must first open the MGD-100
housing. The enclosure lid of the IP66
housing has four capve screws.
NOTE: Aer wiring is completed,
carefully re-assemble the enclosure
and its components, nong the
keyed ribbon cable and sensor
connectors. Aer installaon is
complete, be sure to refer to the
User Manual (part number 6109-
9000) for detailed instrucons on
registering the sensors and configur-
ing the MGD-100 for proper opera-
on.
Controller PCB
Volt Free
Alarm
Relay
RV1
Mains
Power
Fail Safe Jumper Seng:
OFF
ON
OFF: High Relay Is Energized
On Alarm (Energized on High
Alarm Condion)
ON: High Relay Is Normally
Energized (De-energized on
High Alarm or Mains
Failure Condion)
Transformer
Channel 1 Channel 2
(Oponal)
SENSOR 1
ON OFF
SENSOR 2
ON OFF
FAIL
SAFE
ON
OFF
HIGH
Relay
NC COM NO
MAINS
12V
Fuse 2 Fuse 1
A
u
d
i
b
l
e
A
l
a
r
m
B
u
z
z
e
r
KEY
RED
RED
Chan 1
Alarm LED Chan 2 Alm
LED (Opt.)
GRN
Controller PCB
High Alarm
Relay
(Volt Free)
RV1
SC
SENSOR
Fail Safe Jumper Seng:
OFF
ON
OFF: High Relay Is Energized
On Alarm (Energized on High
Alarm Condion)
ON: High Relay Is Normally
Energized (De-energized on
High Alarm or Mains
Failure Condion)
Transformer
Channel 1 Channel 2
(Oponal)
SENSOR 1
ON OFF
SENSOR 2
ON OFF
FAIL
SAFE
ON
OFF
HIGH
Relay 2
NC COM NO
MAINS
12V
Fuse 2 Fuse 1
A
u
d
i
b
l
e
A
l
a
r
m
B
u
z
z
e
r
LOW
Relay 1
NC COM NO
KEY RESET
RED
RED
YEL
YEL
Chan 1 Alarm LEDs Chan 2 Alm LEDs (Opt.)
GRN
Low Alarm
Relay
(Volt Free)
Mains
Power
RED RED RED RED RED RED
Chan 1
Alarm LED
Chan 2
Alarm LED
Chan 3
Alarm LED
Chan 4
Alarm LED
Chan 5
Alarm LED
Chan 6
Alarm LED
GRN
SENSOR 1 SENSOR 2 SENSOR 3 SENSOR 4 SENSOR 5 SENSOR 6
ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF
NC COM NO
High Relay
+ 12V -
- SIREN +
PSU KEY
FAIL SAFE
ON
OFF
RV1
To Lid
Ground
Connecon
Base Ground Connecon
Repeat for sensor
channels 3 through
6 as required.
Relay
Output
Fail Safe
Jumper Seng:
OFF
ON
OFF: High Relay Is
Energized On Alarm
(Energized on High
Alarm Condion)
ON: High Relay Is
Normally Energized
(De-energized on
High Alarm or Mains
Failure Condion)
Sensor Enable
Jumper Sengs:
OFF
ON
OFF: Sensor is
disabled for this
channel
ON: Sensor is
enabled for this
channel
Ensure that connecons 1 to 4
on each sensor connect to their
corresponding numbers on the
terminal block in the main
alarm unit, otherwise the
system will not funcon
correctly and could be
damaged.
Fuse
MAINS
12V
50/60Hz
Fuse
REPLACE FUSE
WITH M205
T2AL250V
Mains
Power
Horn
(12 VDC, 200 mA Max)
Key
Switch
Fuse
MAINS
12V
50/60Hz
Fuse
REPLACE FUSE
WITH M205
T2AL250V
RED RED RED RED RED RED
Chan 1
Alarm LEDs
Chan 2
Alarm LEDs
Chan 3
Alarm LEDs
Chan 4
Alarm LEDs
Chan 5
Alarm LEDs
Chan 6
Alarm LEDs
YEL YEL YEL YEL YEL YEL
GRN
SENSOR 1 SENSOR 2 SENSOR 3 SENSOR 4 SENSOR 5 SENSOR 6
ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF
NC COM NO
High Relay Low Relay Fault Relay
NC COM NO NO COM NC
+ 12V -
- SIREN +
PSU KEY RESET
RV1
To Lid
Ground
Connecon
Base Ground Connecon
Mains
Power
Horn
(12 VDC, 200 mA Max)
Key
Switch
Push
Buon
Switch
Repeat for sensor
channels 3 through
6 as required.
Ensure that connecons 1 to 4
on each sensor connect to their
corresponding numbers on the
terminal block in the main
alarm unit, otherwise the
system will not funcon
correctly and could be
damaged.
Relay
Outputs
Fail Safe
Jumper Seng:
OFF
ON
OFF: High Relay Is
Energized On Alarm
(Energized on High
Alarm Condion)
ON: High Relay Is
Normally Energized
(De-energized on
High Alarm or Mains
Failure Condion)
Sensor Enable
Jumper Sengs:
OFF
ON
OFF: Sensor is
disabled for this
channel
ON: Sensor is
enabled for this
channel
FAIL SAFE
ON
OFF
2 Channel 1 Alarm 2 Channel 2 Alarm
6 Channel 1 Alarm 6 Channel 2 Alarm
Refer to the User Manual (part number 6109-
9000) at www.MyBacharach.com for detailed
instrucons on accessing the internal components
for wiring.
SC Gas Sensor PCB
IR Gas Sensor PCB
SC
SENSOR
IR Gas Sensor PCB
4-conductor cable (stranded);
500  (152 m) max;
22 AWG; Max 8.8Ω/wire
4-conductor cable (stranded);
500  (152 m) max;
22 AWG; Max 8.8Ω/wire
4-conductor cable (stranded) (6 places max);
500  (152 m) max; 22 AWG; Max 8.8Ω/wire
4-conductor cable (stranded) (6 places max);
500  (152 m) max; 22 AWG; Max 8.8Ω/wire