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Dräger Polytron® 8720 IR

Toxic Gases and Oxygen Detectors
  • Advanced explosion-proof transmitter for carbon dioxide detection
  • Utilizes high-performance infrared Dräger PIR 7200 sensor
  • Compatible with most control systems via HART®, Modbus, and Fieldbus
Dräger Polytron® 8720 IR Toxic Gases and Oxygen Detectors
Dräger Polytron 8720 EX e stocking station
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Focus on safety: Detect carbon dioxide with precision

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<= 8 seconds
Response time
-40°C - 77°C
Temperature (operation)
Epoxy coated copper-free aluminum or stainless steel SS316 L
Housing Material
Open full specifications

Highlights

The Dräger Polytron® 8720 IR is an advanced explosion proof transmitter for the detection of carbon dioxide in percent volume or ppm. It uses a high performance infrared Dräger PIR 7200 sensor, which can be submerged in water without damage. Besides a 3 wire 4 to 20 mA analogue output with relays, it also offers HART®, Modbus and Fieldbus making it compatible with most control systems.

Efficient, stable and robust – the Dräger PIR 7200

With its stainless steel 316L enclosure and drift free optics, the Dräger PIR 7200 is built for the harshest industrial and commercial outdoor environments. The unique 4 beam signal stabilizing system makes the sensor resistant to dust or dirt deposi More information

Dräger Polytron® 8720 IR Toxic Gases and Oxygen Detectors -

Easy device management via digital communication

The Dräger Polytron 8720 is equipped with digital interfaces allowing for quick and easy remote interrogation of the transmitter’s state. Integration with existing asset management systems such as PACTware™ is possible via DTM. In addition to the com More information

Same design, same operating principle

The Dräger Polytron 8720 belongs to the Polytron 8000 series. All transmitters in this series have the same design and user interface. This allows for uniform operation with reduced training and maintenance requirements. The large graphic backlit dis More information

Three relays for controlling external equipment

Upon request, the Dräger Polytron 8720 can also be supplied with three integrated relays. This enables you to use it as an independent gas detection system with two arbitrarily adjustable concentration alarms and one fault alarm. Audible alarms, sign More information

Safe, robust housing for every application

Polytron 8720 features a Class I, Div. 1 rated explosion proof enclosure made from aluminium or stainless steel, making it suitable for a wide range of environmental conditions. A protection type “e” version includes a convenient docking station whic More information

Make the impossible possible with the remote sensor

The remote sensor connection housing allows you to install the sensor separately from the transmitter. This allows you to simply place the sensor closer to the gas cloud in hard-to-reach locations. The display remains visible at eye level. Since the  More information

Data logger

The Polytron 8720 has a data logger, which records measuring and event data from the past years.

Specifications

<= 8 seconds
Response time
-40°C - 77°C
Temperature (operation)
Epoxy coated copper-free aluminum or stainless steel SS316 L
Housing Material

Key Facts

Type
Transmitter
Measuring Principle
Infrared
Response time
<= 8 seconds
Cable entry
M20 or 3/4" NPT
Display
Intrinsic Safety
Flameproof
Increased Safety
SIL
SIL 2 (IEC 61508-1-3)
4-20 mA
Bus
HART®

Technical Data

Power Supply
10 to 30 VDC, 3-wire
Temperature (operation)
-40°C - 77°C
Humidity
0 to 100% r.h., non-condensing
Pressure (hPa)
700 - 1300
Dimensions (H × W × D)
28x15x13 cm
Weight
5.7 Kg
Housing Material
Epoxy coated copper-free aluminum or stainless steel SS316 L
Degree of protection (IP class)
IP65/66/67

Approvals

ATEX
IECEx
UL
CSA
CE marking
GOST (EAC)
Performance approval
Shipping approval (MED)

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Your hazmat-based safety product finder

Relevant information and specific recommendations of safety equipment for more than 1,500 hazardous substances.

See the whole Product System.

This product is part of a Dräger system solution. Combine it with the following system components.

Connective Products

Controller - Dräger REGARD® 3000
Dräger REGARD® 3000
  • Modular control system for various gas and vapour monitoring
  • Multi-coloured status light signals system status
  • Allows combination of Input, Relay, and Gateway modules
More Information
Controller - Dräger REGARD® 3900 Series
Dräger REGARD® 3900 Series
  • Standalone control system with up to 16 configurable measuring channels
  • Modular setup for plant-specific customization
More Information
Controller - Dräger REGARD® 7000
Dräger REGARD® 7000
  • Highly expandable control and analysis system
  • Monitors various gases and vapours
  • Suitable for complex gas warning systems
More Information

Accessories

Dräger PolySoft software
Dräger PolySoft software

The optional Dräger PolySoft Windows® software is used for configuration, firmware upgrades, diagnostics, and downloading the Polytron's built in datalogger. All from the comfort of your control room using the digital HART® signal that rides on top of the analog 4 – 20 mA signal. Out in the field, an available non intrusive IR dongle easily connects Polytron® to PolySoft.

Duct mount kit
Duct mount kit

The duct mount kit enables gas monitoring inside ventilation ducts while keeping the transmitter outside.

​Flow cell
​Flow cell

Function test/calibration of the transmitter during high wind forces and/or high test gas concentration, including status display, suitable for process applications.

Process cuvette SGR
Process cuvette SGR

For sampling and in-line applications – reduces the inner volume of the measuring cuvette, thus providing a faster speed of response under flow conditions – made of stainless steel.

Splash guard
Splash guard

The Splash guard protects the sensor against water splashes and dirt.

Next Steps

Get in touch with Dräger

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Dräger Safety AG & Co. KGaA
Not all products, features, or services are for sale in all countries. Please contact your local Dräger representative for more information.
Revalstraße 1 23560 Lübeck Germany