Detcon Model TP-624D
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Detcon Model TP-624D
The Detcon model TP-624D by Teledyne is a “Smart” gas detection sensor designed to detect and monitor H2S in the air over the ranges of 0-20 ppm, 0-50 ppm, and 0-100 ppm using a proprietary solid-state metal oxide semiconductor technology. This innovative design offers several advantages, including longer sensor life and better temperature and humidity performance.
Model TP-624D features Detcon’s MicroSafe intelligent electronics, non-intrusive operator interface and comprehensive fault diagnostics. The sensor transmitter features an advanced universal design that fits all existing Detcon MOS H2S sensors dating back more than 20 years. The sensor assembly includes a MOS 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 B, C, D).
Equipped with a standard analogue 4-20 mA current signal equivalent to the sensor range of detection, RS-485 serial communications port, one-person remote calibration, self-adjusting zero and span, and LED indicators for two alarm relays and one fault relay and calibration status.
Features
- cCSAus approved for Class I, Division 1, Groups B, C, & D Transmitter design fits all existing Detcon MOS H2S sensors dating back 20 years.
- Compatible with PLCs, SCADA, DCS, via 0-20 mA, and/or RS-485, 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 and LED indicators for FAULT and CAL status.
- Plug-in field-replaceable transmitter.
- Response similar to electrochemical sensor: T50 less than 30sec., T80 greater than 60 sec.
- Direct response constant temperature control.
- Withstands exposure to high-range concentrations of H2S and other acid gases.
- Impervious to high moisture environments in both powered and non-powered modes.
- Extensive Fault diagnostics.
- Replaces model TP-624C.
Applications
- Oil and Gas Drilling Rigs
- Oil and Gas Production Sites
- Refining and Petrochemical
- Pulp and Paper Mills
- Waste Water Treatment Plants
TP-624 Series MOS Hydrogen Sulfide Gas Detection Sensor Assemblies
Sensor Assemblies
| Part Number | Description |
|---|---|
| 966-014520-100 | TP-624D Solid State MOS H2S Sensor Assembly Alum Condulet |
| 966-01452B-100 | TP-624D-316SS Solid State MOS H2S 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 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 | Continuous Diffusion/Adsorption, CHEMFET Solid State Metal Oxide Semiconductor |
| Sensor Life | 5 to 10 Years Typical |
| Measurement Range | 0–20 ppm, 0–50 ppm, 0–100 ppm |
| Accuracy / Repeatability | ±10% of Reading or ±2 ppm (Whichever is Greater) |
| Response / Clearing Time | T50 < 30 Seconds; T80 < 60 Seconds |
| Outputs |
Linear 4–20 mA DC RS-485 Modbus RTU 3 Relays (Alarm 1, Alarm 2 & Fault) Contacts Rated 5 A |
| Electrical Classification |
Explosion Proof CSAus: Class I, Division 1, Groups B, C, D (Tamb = -25°C to +40°C) Class I, Zone 1, Group IIB+H2 cCSA: Class I, Division 1, Groups B, C, D (Tamb = -40°C to +40°C) Class I, Zone 1, Group IIB+H2 ATEX: Ex d IIB+H2 T4 (Tamb = -40°C to +60°C) |
| Safety Approvals |
cCSAus ATEX CE Marking SIL 2 FMEDA Rating |
| Ingress Protection | IP66 |
| Warranty |
Plug-in Detector: 10-Year Conditional Warranty Transmitter: 2-Year Warranty |
| 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 | -35°C to +55°C (-31°F to +131°F) |
| Operating Humidity Range | 5–100% 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 | 22–28 VDC* *12 VDC Available by Special Order |
| Power Consumption |
Normal Operation: 68 mA (<1.7 W) Maximum: 85 mA (2 W) |
| RFI / EMI Protection | Complies with EN 50270 |
| 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 |
| Serial RS-485 Output | RS-485 Modbus™ RTU |
| Baud Rate | 9600 BPS (9600, N, 8, 1 Half Duplex) |
| 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 |
Heater, Loop, Input Voltage, 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 Cabling |
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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