Bosch LP Combustible GAS DETECTOR
The D382 Combustible Gas Detector (Macurco GD‑2A) detects the presence of combustible gases such as
propane and natural gas (methane). It is rated by Underwriters Laboratories (UL) to alarm below 25% of
the lower explosion level (LEL) of propane or methane. Use in non-hazardous locations such as residences,
retail stores, office buildings, and institutional buildings. It is usually installed in rooms where gas appliances are located or in rooms that are
susceptible to gas seepage.
Brand: BOSCH
Model: D382
Country of Origin: GERMANY
Features:
- 12 VDC/VAC or 24 VDC/VAC operation, Combustible Gas Detector (Macurco GD-2A)
- Self-purging semiconductor sensor requires no maintenance or recalibration,
- SPDT (Form C) alarm Relay and SPST (Form A) trouble relay designed for seamless connection to control panels or other devices,
- Installer selectable self-restoring or latching functionality,
- Red and Green LED status indicators.
Notice
Do not use in industrial locations such as
factories, refineries and chemical plants.
Notice
The D382 does not detect carbon monoxide.
Functions:
Input Power
The detector uses a full-wave bridge rectifier so it is
independent of input power polarity. It operates on AC
or DC voltages from 12 V to 24V. A switching regulator
is used to efficiently match the wide input voltage
range to the fixed internal power system.
Status LEDs
The detector has one green and one red status LED on
the front of the detector.
The detector has an internal two-minute time delay
that prevents alarms during the warm-up of the gas
sensor. During the warm-up period, the green LED
light flashes. Once the delay is over, the continuous
green light indicates normal operation.
The detector has a supervisory circuit of critical
functions. A trouble condition, due to a failure of a
non-reliable component, results in both lights flashing
and the trouble relay activating. A power failure also
causes the trouble relay to activate.
The red LED turns on at the same time the alarm relay
activates to indicate the alarm condition.
Certifications and approvals:
3M (Macurco) holds the following Listings and
Approvals:
Region Certification
USA UL FTAM: Gas and Vapor Detectors and
Sensors (UL2075)
Technical specifications
Environmental Considerations
Temperature (operating): +32°F to +120°F (0°C to +49°C);
For UL installations, +40°F to +120°F
(+4.4°C to +49°C)
Mechanical Properties
Color: White
Dimensions (H x W x D): 4.5 in. x 5.0 in. x 1. 625 in.
(11.4 cm x 12.7 cm x 4.1 cm)
Weight (shipping): 0.54 lb (0.25 kg)
Outputs
Alarm
Relay Configuration: one SPDT (Form C)
Relay Rating: 0.125 A, 40 V, 3 VA
Set Point: 25% below LEL for propane or methane
Trouble
Relay Configuration: one SPST (Form A)
Relay Rating: 0.25 A, 40 v, 10 VA
Power Requirements
Current
Alarm: At 12 VDC: 70 mA; at 24 VDC: 35 mA
At 12 VAC: 100 mA; at 24 VAC: 65 mA
Standby: At 12 VDC: 45 mA; at 24 VDC: 22 mA
At 12 VAC: 65 mA; at 24 VAC: 45 mA
Voltage
VDC input: 12 VDC to 24 VDC
VAC input: 12 VAC to 24 VAC, 50 Hz or 60 Hz
