The Drager Polytron 8700 continuously monitors the levels of combustible gases. A microprocessor transmitter with a highly sensitive Infrared poison immune sensor, the PIR 7000, detects a range of hydrocarbons. Two sensor options offer maximum sensitivity to the target gas, measured in ppm, %LEL, and Vol% range. The detector is explosion-proof and suitable for indoor and outdoor use.
Sensor choices
- Type 334 measures a range of Hydrocarbons, for example, Methane and Ethylene.
- Type 340 is designed to be extra sensitive to Propane and Alkanes.
Gas readings are shown on a large graphic backlit display. Prominent LEDs, green, yellow and red, indicate status. Operation is by a magnetic wand.
E versions include a docking station that can be fitted before detector installation.
A library of 100 gases can be selected from the menu. Once the gas is chosen, automatic calibration occurs with a common gas reference such as Methane or Propane, making it easy should detection requirements change. Data and event logging functionality is included.
The gas concentration is output as a 4 to 20 mA analogue signal or a digital HART signal, allowing integration with most controllers or building management systems. Relay options enable the transmitter to act as a standalone system, triggering external preventive equipment, using two adjustable alarm concentration relays and one fault relay.
Remote sensor options permit installation in hard-to-access areas. The maximum permissible distance between the Polytron 8700 and the PIR 7000 is 30 metres. Using the optional flow cell accessory, one-person calibration is possible.
- Long-life Infrared sensor typically 15 years
- Stainless steel housed sensor suitable for use in extreme environments
- Light, efficient optics with four beam stabilising provide drift-free output and dirt resistance
- Ageing and climate compensation
- Low maintenance
- Foundation Fieldbus, Profibus and Modbus are available
- Four mounting holes included pipe and duct mountable options
- Approvals ATEX, IECEx, UL and CSA. SIL 2 certified and MED
- Operating Temperature-40 to 77°C without relay -40 to 70°C with relay
- Power requirement 10 to 30 V DC, 3-wire
- Size with Docking station 28 x 18 x 19 cm, 5.2kg. Without 28 x 15 x 13 cm, 3.9kg, Weights quoted based on Aluminium housing
Order Information
8344601 Drager Polytron 8700 IR 334 d A 4-20/HART
8344602 Drager Polytron 8700 IR 334 d A 4-20/HART relay
8344610 Drager Polytron 8700 IR 334 d S 4-20/HART
8344611 Drager Polytron 8700 IR 334 d S 4-20/HART relay
8344619 Drager Polytron 8700 IR 334 e A 4-20/HART (incl. Docking Station)
8344620 Drager Polytron 8700 IR 334 e A 4-20/HART relay (incl. Docking Station)
8344637 Drager Polytron 8700 IR 340 d A 4-20/HART
8344638 Drager Polytron 8700 IR 340 d A 4-20/HART relay
8344655 Drager Polytron 8700 IR 340 e A 4-20/HART (incl. Docking Station)
8344656 Drager Polytron 8700 IR 340 e A 4-20/HART relay (incl. Docking Station)
8344800 Drager Polytron 8xx0 Kit
Accessories
4544101 Magnetic wand
4544198 Pipe mount bracket
6812300 Duct mount kit
6811945 Duct mount kit Flow Cell for PIR 7×00
6811990 Duct mount kit Bump Test Adapter for PIR 7×00
6811625 Status indicator for PIR 7000
6811911 Splash guard for PIR 7000
8323405 Flow Cell for PIR 7000
6811630 Bump Test Adapter for PIR 7000
6811609 Insect guard for PIR 7×00
6811890 Hydrophobic filter for PIR 7×00
6811610 Calibration adapter for PIR 7×00
6811915 Process adapter for PIR 7×00, POM (Polyoxymethylene)
6811415 Process adapter for PIR 7×00, stainless steel
4544099 Aluminium junction box for remote sensor ‘d’
4544098 Stainless steel junction box for remote sensor ‘d’
6812617 Spacer
6811825 Dräger PIR 7000 334 for remote sensor ‘e’ variant
6811819 Dräger PIR 7000 340 for remote sensor ‘e’ variant
