Drager Polytron 7000 Fixed Gas Detector

  • Accepts toxic & oxygen electrochemical sensors
  • Intrinsically safe
  • IP 66/67 & SIL2

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The Drager Polytron 7000 is a gas detector that can satisfy all toxic and oxygen gas measurement applications on a single platform. It meets the requirements of the compliance market and the high specification requirements of customised solutions.

Two components make up the Polytron 7000, allowing easy installation; initially, a docking station can be wired in. The Polytron transmitter then clips into the docking station, secured by a quick-lock mechanism. The transmitter itself and the docking station are ordered separately.

A large graphic display shows status information with the help of icons and plain text and guides the user through calibration and configuration.

The wide range of outputs, 4 to 20 mA, HART LON, PROFIBUS or FOUNDATION Fieldbus, enables the Polytron 7000 on either a control system from the Drager Regard family or third party control systems. The modular design allows for the subsequent retrofit onto any mentioned interfaces.

With the Polytron 7000 remote sensor adaptor and lead, it is possible to mount the sensor up to 30 metres from the polytron 7000 transmitter. This enables the user to read and operate the transmitter from a safe area or detect toxic gases and oxygen levels in difficult to reach places while still viewing and configuring the Polytron 7000 conveniently. A duct mount kit enables the remote sensor to be mounted directly in elevated pipework.

A relay module can be supplied with two gas alarm relays and one fault alarm relay; the transmitter can either be used as a stand-alone gas detector with no need for a controller, or alarm devices can be activated locally, saving costs in cabling to and from a controller. The analogue signal can still be transmitted back to a controller if desired. (Not suitable for use in hazardous areas)

Sensors are available for over 100 different gases, designed for 24 hours, 365 days per year operation. The large size gives them their renowned long life. The built-in sensor data memory containing all the relevant gas and calibration information, onboard temperature and pressure compensation provides the sensor with its unsurpassed measurement performance. This also allows the Polytron 7000 to accept pre-calibrated sensors, a virtually maintenance-free transmitter with minimal operator intervention.

With the sensor test dongle, the Polytron 7000 performs many different patented sensor tests that ensure the reliability and functionality of the sensor and gas detection system. With three other software dongles, a range of functions is incorporated into the transmitter, adjusting it to the user or application-specific requirements. With the new sensor diagnosis function (including the sensor test), operational demands and the remaining sensor lifetime are estimated to create maintenance and exchange schedules. A data and event saving option is integrated into the data dongle. This saves the measured values and events such as alarms and warnings. The data can be downloaded onto a PDA m515-Ex via an IR interface and evaluated on a PC with the Drager GasVision software. A 15-minute concentration history is shown on the transmitter display at the push of a button.

The inclusion of a pump module enables the Polytron 7000 to draw gas samples from difficult to reach areas; the gas sample is then passed across the sensor for detection. Like all accessories in the Polytron 7000 range, the pump unit is modular and can be retrofitted into existing transmitters. (Not suitable for use in hazardous areas).

Technical Detail

  • Power Supply 16.5 to 30 V DC 2-wire
  • Temperature (operation) -40°C – 65°C. Humidity 0 to 100% r.h., non-condensing
  • Pressure (hPa) 700 – 1300
  • Dimensions (H × W × D) 0.17 x 0.14 x 0.13 m. Weight 1.98 lb
  • Housing Material Glass fibre reinforced polyester (GFRP)
  • Degree of protection (IP class) IP66/67

Order Information


8317610 with 4 to 20 mA output
8317980 with 4 to 20 mA output and sensor diagnostic dongle
8317636 with 4 to 20 mA output and relay
8317637 with 4 to 20 mA output and pump
8317638 with 4 to 20 mA output relay and pump
8317710 with 4 to 20 mA output and HART
8317776 with 4 to 20 mA output, HART and relay
8317777 with 4 to 20 mA output, pump and HART
8317778 with4 to 20 mA output, pump, HART and relay
8317810 with LON
8317816 with LON and relay
8317817 with LON and pump
8317818 with LON, pump and relay
8319430 with PROFIBUS
8319427 with PROFIBUS and relay
8319436 with PROFIBUS and pump
8319438 with PROFIBUS, pump and relay
8319440 with FOUNDATION Fieldbus
8319428 with FOUNDATION Fieldbus and relay
8319437 with FOUNDATION Fieldbus and pump
8319439 with FOUNDATION Fieldbus, pump and relay
8317990 Polytron Docking Station *one required per transmitter


8317350 Pump Module
8317360 Relay Module
1890086 Relay Connector

Software Dongles

8317618 Data Dongle
8317619 Sensor Test Dongle
8317860 Sensor Diagnostic Dongle

Enquire About This Product

Title Size
Polytron-7000-Datasheet 153 KB
Polytron EC sensor options 195 KB
Polytron 7000 Manual 4 MB

Additional information

Weight 0.09 kg