Detcon Model FP-624D
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Detcon Model FP-624D
The Detcon model FP-624D by Teledyne is a “Smart” gas detection sensor designed to detect and monitor combustible gas in the air over the range of 0-100% LEL (lower explosive limit) using matched-pair catalytic bead technology.
Model FP-624D features Detcon’s MicroSafeTM intelligent electronics, non-intrusive operator interface and comprehensive fault diagnostics. The sensor transmitter features an advanced universal design that fits all existing Detcon matched-pair catalytic bead sensors, dating back over 20 years.
The sensor assembly includes the detector in a stainless steel housing, a base connector board, an explosion-proof enclosure (available in aluminium or stainless steel), a plug-in control transmitter circuit, and a splashguard with an integral cal port. The packaging is Explosion Proof (Class I, Division 1, Groups C & D).
Equipped with a standard analogue 4-20 mA current signal equivalent to the sensor range of detection, RS-485 serial communications port, two alarm relays and one fault relay, one-person remote calibration, self-adjusting zero and span, and LED indicators for fault, alarm, and calibration status. Detcon’s combustible gas sensor has an infinite shelf life and is supported by a 2-year warranty.
Features
- Performance Certified to CSA 152 cCSAus for Class I, Division 1, Groups C & D.
- Transmitter design fits all existing Detcon Catalytic Bead Sensors dating back 20 years.
- Compatible with PLCs, SCADA, DCS, via 4-20 mA, and/or RS485, and/or alarm relays.
- Sensor status and parameters are accessible via RS-485 (Modbus).
- Menu programmable relays standard (two alarms plus fault).
- Simple menu-driven calibration – less than 3 minutes.
- LED display with LED indicators for FAULT and CAL status.
- Plug-in field-replaceable transmitter.
- Long sensor life: averaging +5 years in harsh offshore drilling/production environments.
- High resistance to poisons such as sulfides, chlorides, silicon-based contaminants, etc.
- Low power consumption (less than 3.5 watts versus 8+ watts on competitive brands).
- Extensive Fault diagnostics.
Applications
- Oil and Gas Drilling Rigs
- Oil and Gas Production Sites
- Offshore Production Platforms
- FPSOs
- LNG/CNG Plants
- Refining and Petrochemical
- Pulp and Paper Mills
- Waste Water Treatment Plants
Order Information
Sensor Assemblies
| Part Number | Description |
|---|---|
| 966-524520-100 | FP-624D Catalytic Combustible Gas Sensor Assembly Alum condulet |
| 966-52452B-100 | FP-624D Catalytic Combustible Gas Sensor Assembly 316SS condulet |
Accessories
| Part Number | Description |
|---|---|
| 943-000000-000 | Calibration Sleeve / Wind Guard (for use with splash guard) |
| 960-202200-000 | Condensation prevention packet (replace annually) |
| 437-500000-000 | Stainless steel tag |
| 943-004223-000 | 2″ pipe mount with sun shade |
| 943-004221-000 | Sensor Mounting Plate for 2″ pipe |
| 943-002273-000 | Harsh location dust guard (fits 1.5 x 18 thread) |
| 033-003238-000 | Replacement filter for dust guard (pack of 20) |
| 943-002274-000 | Hazardous location dust guard (7/8) for TP series sensors |
| 943-003236-000 | Replacement filter for harsh location dust guard (pack of 20) |
| 943-003436-000 | Harsh location water guard (fits all standard splash guards) |
| 897-850000-010 | Aluminum junction box with solid lid |
| 897-850901-010 | Aluminum junction box with lens cover |
| 897-850000-316 | Stainless steel junction box with solid cover |
| 897-850901-316 | Stainless steel junction box with lens cover |
| 943-121747-SS5 | Stainless steel flow-through adapter |
| Sensor Type | Matched-pair catalytic bead |
| Sensor Life | 3 to 5 years typical |
| Measurement Range | 0–100% LEL (Lower Explosive Limit) |
| Accuracy / Repeatability | ±3% (0–50% LEL) ±5% (50–100% LEL) |
| Response / Clearing Time | T50 < 10 seconds; T90 < 30 seconds |
| Zero Drift | < 5% per year |
| Outputs | Linear 4–20 mA DC Optional HART 3 Relays (Alarm 1, Alarm 2 & Fault), Contacts Rated 5 A |
| Electrical Classification |
Explosion Proof CSAus: Class I, Division 1, Groups C, D (Tamb = -25°C to +40°C) Class I, Zone 1, Group IIB cCSA: Class I, Division 1, Groups C, D (Tamb = -40°C to +40°C) Class I, Zone 1, Group IIB |
| Performance Approvals | CSA C22.2 #152 |
| Safety Approvals | cCSAus |
| Ingress Protection | NEMA 4X, IP66 |
| Warranty | Sensor: 2 Years Transmitter: 2 Years |
| Operating Temperature Range |
Canada: -40°C to +40°C (-40°F to 104°F) USA: -25°C to +40°C (-13°F to 104°F) |
| Storage Temperature Range | -40°C to +75°C (-40°F to +167°F) |
| Operating Humidity Range | 0–99% RH, Non-condensing |
| Operating Pressure Range | Atmospheric ±10% |
| Dimensions |
254 × 155 × 109 mm (H × W × D) 10" × 6.1" × 4.3" (Including Splashguard) |
| Mounting Holes (J-Box) | 140 mm (5.5") Center-to-Center |
| Weight |
2.72 kg (6 lbs) with Aluminum J-Box 4.08 kg (9 lbs) with Stainless Steel J-Box |
| Power Input | 12–28 VDC |
| Power Consumption |
Normal Operation: 68 mA (<1.7 W) Maximum: 87 mA (2 W) |
| RFI / EMI Protection | Complies with ISO 92.0.01 |
| Analog Output |
Linear 4–20 mA DC (1,000 Ω max loop load @ 24 VDC) 0 mA – All Fault Diagnostics 2 mA – In Calibration 4–20 mA – 0–100% Full Scale 22 mA – Over-range Condition |
| Status Indicators |
4-Digit LED Display with Gas Concentration Full-Script Menu Prompts for AutoSpan, Setup Options & Fault Reporting LEDs for Alarm 1, Alarm 2, Fault & Calibration |
| Relay Outputs |
Alarm 1, Alarm 2 & Fault 5 A @ 250 VAC 5 A @ 30 VDC |
| Faults Monitored | Loop, Input Voltage, Zero Sensor, Processor, Memory, Calibration |
| Cable Requirements |
Power / Analog: 3-Wire Shielded Cable Maximum Distance: 13,300 ft (4,054 m) with 14 AWG |
| Serial Output |
2-Wire Twisted-Pair Shielded Cable for RS-485 Installations Maximum Distance: 4,000 ft (1,219 m) to Last Sensor |
| I/O Protection | Over-voltage, Miswiring, EMI/RFI Immunity |
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