Det-Tronics 014046-201 (model reference PIRECLA11A1T1) — a PointWatch Eclipse® Model PIRECL diffusion-based infrared combustible gas detector for continuous, fixed monitoring of flammable hydrocarbon gases from 0 to 100% Lower Flammable Limit (LFL).
The PointWatch Eclipse is built for on- and offshore oil and gas facilities and other downstream hydrocarbon applications. Standard outputs are an electrically isolated 4–20 mA signal with HART communication and RS-485 serial communication supporting MODBUS and ASCII; an optional relay output board adds two programmable alarm relays and one fault relay. Heated sapphire optics, a stainless steel explosion-proof housing with tethered weather baffle, an integral wiring compartment and a built-in tri-color LED remove the need for external junction boxes or display modules. The detector is performance certified to methane, propane, ethylene and butane and ships factory set and calibrated to one of these gases; routine calibration is not required, and an optional FlexVu® UD10, UD20 or UD30 universal display can be used for remote calibration.
Specifications
| Detection range |
0 to 100% LFL standard (other ranges configurable) |
| Detectable gases |
Most flammable hydrocarbon vapors; performance certified to methane, propane, ethylene and butane |
| Input voltage |
24 Vdc nominal; operating range 18 to 32 Vdc (ripple ≤ 0.5 V P-P) |
| Power consumption |
4.0 W nominal at 24 Vdc; 7.5 W maximum at 24 Vdc; 10 W maximum at 32 Vdc |
| Current output |
Linear 4–20 mA, 600 ohms maximum loop resistance at 24 Vdc |
| Alarm setpoint range |
Low and high alarm 5 to 60% LFL (EQP model low alarm 5 to 40% LFL) |
| Accuracy |
±3% from 0 to 50% LFL; ±5% from 51 to 100% LFL |
| Response time (methane, baffle installed, no filter) |
T50 4.5 s, T90 7.1 s standard response |
| Warm-up time |
Two minutes from cold power-up to normal mode; 1 hour minimum recommended |
| Self-diagnostics |
All critical tests performed once per second |
| Operating temperature |
–55°C to +75°C (–67°F to +167°F) |
| Humidity |
5 to 95% RH (FM/CSA/DEMKO verified) |
| Housing |
316/CF8M cast stainless steel |
| Conduit entries |
Two entries, 3/4 in. NPT or 25 mm |
| Wiring terminals |
UL/CSA rated up to 14 AWG; DIN/VDE rated 2.5 mm² |
| Dimensions |
9.3 × 5.2 × 4.6 in. (23.6 × 13.2 × 11.7 cm) |
| Shipping weight |
10.5 lb (4.8 kg) approximate |
| Hazardous locations |
FM & CSA Class I, Div. 1, Groups B, C & D (T4); Class I, Div. 2, Groups A, B, C & D (T4); ATEX/IECEx Ex db eb IIC T4…T5, IP66/IP67 |
| Performance standards |
FM 6310/6320, ANSI/ISA 12.13.01, CSA C22.2 No. 152; EN/IEC 60079-29-1 |
| Warranty |
5 years |
Installation notes
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Gas setting is factory-set: the detector ships calibrated to one of the four certified gases. Detecting any other gas requires configuration over HART, MODBUS or EQP system software and a device calibration.
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Allow warm-up: the detector reaches normal mode two minutes after a cold power-up, but Det-Tronics recommends at least one hour before relying on readings.
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No external junction box: field wiring lands in the integral wiring compartment; terminals accept up to 14 AWG.
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FM/CSA conditions: acidic atmospheres are excluded, and a conduit seal is not required under the FM/CSA certification.
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Remote calibration: use the optional hand-held HART communicator or a FlexVu UD10, UD20 or UD30 universal display where the detector is hard to reach.
Related models
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PIRECL EQP models — versions for Eagle Quantum Premier systems, with a low alarm range of 5 to 40% LFL.
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PIRECL safety-certified models — SIL 2 certified to IEC 61508.
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FlexVu UD10 / UD20 / UD30 — explosion-proof universal display units for remote calibration.
Specifications taken from the Det-Tronics specification data sheet "Infrared Hydrocarbon Gas Detector PointWatch Eclipse® Model PIRECL," document 90-1138 rev 12.4. Manufacturer specifications are subject to change without notice.
Documents
FAQ
Which gases does it detect?
Most flammable hydrocarbon vapors. It is performance certified to methane, propane, ethylene and butane and ships factory set and calibrated to one of these; other gases require configuration and calibration via HART, MODBUS or EQP software.
Does it need routine calibration?
No. Routine calibration is not required, and all critical self-tests run once per second.
What outputs are available?
An isolated 4–20 mA output with HART and RS-485 serial communication (MODBUS and ASCII). An optional relay board adds two programmable alarm relays and one fault relay.
What hazardous areas is it certified for?
FM and CSA Class I, Division 1, Groups B, C and D, and Division 2, Groups A to D, plus ATEX/IECEx Ex db eb IIC T4–T5 with IP66/IP67.
