The Teledyne Detcon TP-700 is a solid-state H2S sensor with field-replaceable detector and dual-output capability for hazardous area gas detection and monitoring.
Model TP-700 is a non-intrusive “Smart” sensor designed to detect and monitor H2S in air over the range of 0-100 ppm using proprietary solid state metal oxide semiconductor technology. Features plug-in, field replaceable detector with over-sized gold-plated connections, electropolished 316 stainless steel housing, fully encapsulated electronics, and dual layer surge protection. Equipped with standard analog 4-20mA and Modbus RS-485 outputs, wireless option compatible with SmartWireless product line, and optional Remote Alarm Module (RAM) and HART integration. Includes embedded intuitive software with built-in alpha/numeric display for calibration, configuration, and fault diagnostics. Solid state MOS sensor with infinite shelf life and 10-year conditional warranty. Explosion proof rated (Class I, Division 1, Groups B, C, D; ATEX II 2 G Ex d IIB + H2 T4 Gb). SIL2 certified. Available with optional Aluminum or 316 SS Junction Box.
| Performance | |
| Sensor Type | Continuous diffusion/adsorption CHEMFET Solid State Metal Oxide Semiconductor, Plug-in field replaceable |
| 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 (greater of) |
| Response/Clearing Time | T50 <30 s; T80 <60 s |
| Outputs | Linear 4-20 mA DC, RS-485 MODBUS-RTU |
| Operating Temperature Range | -40°F to +167°F; -40°C to +75°C |
| Storage Temperature Range | -31°F to +131°F; -35°C to +55°C |
| Operating Humidity Range | 5-100% RH non-condensing |
| Operating Pressure Range | Atmospheric ±10% |
| Analog Output | Linear 4-20mA DC (1,000 ohms max loop load @ 24VDC) |
| Serial RS-485 Output | RS-485 Modbus RTU |
| Power | |
| Power Input | 11-30 VDC |
| Power Consumption | Normal operation = 68mA (<1.7 watt); Maximum = 85mA (2 watts) |
| Cable Requirements - Power/Analog | 3-wire shielded cable, Maximum distance is 13,300 feet with 14 AWG |
| Physical | |
| Dimensions | 7"H x 2.2" Dia.; 178mmH x 65mm Dia. (sensor assembly only); 11"H x 6.1"W x 3.75"D; 280mmH x 155mmW x 96mmD (with junction box) |
| Weight | 2 lbs; 0.907kg (sensor only); 6 lbs; 2.72kg (w/aluminum j-box); 9 lbs; 4.08kg (w/stainless steel j-box) |
| Connectivity | |
| Cable Requirements - Serial Output | 2-wire twisted-pair shielded cable, Maximum distance is 4,000 feet to last sensor |
| Approvals & Warranty | |
| Ingress Protection | NEMA 4X, IP66 |
| Safety Approvals | cCSAus, Complies with ISA 92.01 Part 1-1998, ATEX, CE Marking, SIL2 Certified to IEC 61508 |
| Warranty | Plug-in detector – 10 year conditional; Transmitter – 2 Years |
| Other | |
| Electrical Classification | Explosion proof CSA and US (NRTL) Class I, Division 1, Groups B, C, D (Tamb = -40°C to +75°C); ATEX II 2 G Ex d IIB + H2 T4 Gb (Tamb = -40°C to +70°C) |
| Inrush Current | 1.0A @ 24V |
| RFI/EMI Protection | Complies with EN50270 |
| Baud Rate | 9600 BPS (9600,N,8,1 Half Duplex) |
Calibration, repair and maintenance for your detection instruments.