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 docking station 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