The Honeywell 2108B2001, also cataloged as the 2108B2001 Searchpoint Optima Plus, operates as a dedicated hardware component for infrared gas concentration sensing and 4-20 mA loop signaling within industrial safety systems.
Hardware Specifications
Parameter
Specification
Model
2108B2001
Brand
Honeywell
Origin
USA
Weight
2.5 kg
Dimensions
150 mm x 120 mm x 120 mm
Operating Temp
-40 deg C to +65 deg C
Power Consumption
5 W
4-20 mA HART Loop Protocol and Channel Isolation
The 2108B2001 processes continuous optical absorption metrics through dual-path infrared sensing architectures, converting hydrocarbon concentrations into standardized electrical signals. The 4-20 mA HART loop protocol enables simultaneous analog process variable transmission and digital parameter configuration across control networks. Channel-to-channel isolation within the receiver circuitry prevents ground loops and common-mode voltage interference during prolonged outdoor exposures. Cold junction compensation (CJC) and internal temperature tracking algorithms maintain measurement linearity across extreme ambient thermal variations without zero drift.
Frequently Asked Questions
Q: What is the nominal response time for this infrared gas detector?
A: The detector delivers a T90 response time of less than 4 seconds under standard hydrocarbon exposure conditions.
Q: Can the 4-20 mA output be configured for fault indication signaling?
A: Yes, the output can be scaled to drop below 3.5 mA or rise above 21 mA to indicate specific optical or hardware fault conditions.
Q: What type of cable entry threads are available on the stainless steel housing?
A: The housing accommodates either M20 or 3/4-inch NPT threaded entries depending on the specific variant configuration.
Field Installation Guidelines
Mount the detector securely to a rigid structural support or dedicated mounting bracket using the 316 stainless steel housing to minimize mechanical vibration interference.
Ensure the optical path between the transmitter and receiver windows remains completely unobstructed by structural elements or accumulated debris.
Route shielded twisted-pair instrumentation cables through approved conduit fittings, ensuring proper shield grounding at the control panel end only.
Verify that the power supply voltage remains strictly within the 18 to 32 VDC range during full operational load conditions to prevent brownout faults.
