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  Products > Gas Detectors > Sub-Products > Portable Gas Detector >
Multiple Gas Detector > Polytector II G750

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Brochure Polytector II G750
Product Information PDF
Order Detail
The Polytector II G750 is a modular designed gas detector and can be used in all gas endangered areas as a flexible gas measurement and detection unit. With 1 to 6 sensors, the G750 monitors several gas hazards at a time. Extremely simple and therefore safe operation of the detector, together with a robust electronic in a rugged casing, make the G750 a practical detection solution. A large graphic display shows all measurement values at once. The warning system directly indicates if a gas is measured in a dangerously high concentration.

  - 1 to 6 gases are measured and displayed at a time
  - Compact and handy, easy handling, weighs only 26     ounces (750g)
  - 3 alarm thresholds for every gas, plus TWA/STEL,     minimum/peak values
  - Automatic zero point adjustment, data logger
  - Infrared sensor for CO2
  - Intelligent "smart sensor system", pre-calibrated     sensors, easily replaceable
  - Diffusion plus integrated pump
  - Ex-protection ATEX: ` II 2G EEx ib IIC T5
  - Function tested: IBS/PFG-Nr. 413000598

Microprocessor-technique and state-of-the-art sensor technology make the G750 a specialist for measurement and monitoring of gas hazards.
Up to 6 different explosive or toxic gases and oxygen are continuously measured at a time. The "smart sensor system" allows for an adjustment of the measurement task of the G750 by exchanging the pluggable sensors. This means increased flexibility for the user.
Gas supply is made via diffusion or through a built-in sampling pump with up to 30 m sampling line. Thereby it assures that there are no hazardous gases in rooms, manholes, or drains present, so that it is safe to enter these environments.
The measurement values of the last 12 hours are stored in an optional available data logger. This data can be sent to a PC by means of an interface. Storing these measurement values on a PC allows for cost saving archiving and documentation of these values.
With its first-class accumulator the Polytector can operate for up to 14 hours. The accumulator can even get exchanged in ex-areas. Taking into consideration the numerous features on the G750 each function has been assigned to a specific key, which allows for easy operation. On the graphic display the Polytector shows the gas concentration and user instructions. A zoom function and the illuminated display assures a faultless reading of the display even if the view on the display is restricted through darkness or by wearing protection glasses. The Polytector weighs 26 ounces (750g) when fully equipped with 6 sensors, accumulator and pump. The robust design of the detector and the long life sensors assure safe operations even in harsh conditions.
TECHNICAL DATA
Gases and Ranges :
EX CH4 0..100 %LEL
CH4: 0..100 %UEG / 0..100 Vol%
O2: 0 .. 25 Vol%
CO2: ppm oder Vol%
TOX, z.B. CO, H2S ppm
IR CO2 ppm or %Vol
Detection Principles (sensors) :
EX catalytic combustion
thermal conductivity
OX electrochemical
TOX electrochemical
CO2 infrared
Response Time :

4 to 30 seconds depending on gas

Gas Supply :
Diffusion or built-in sampling pump
Power Source : Rechargeable NiMH battery pack
Operation : Touch keys for On/Off, Zoom, Pump, On/Off, battery check
Display : Graphic alpha numeric display illuminated
Alarms :
visual and audible (90dB)
Environmental Conditions :
Temperature: -10 to +50°C
Humidity : 0(20) to 98 % r.h. non condensing Pressure: 800 to 1300 mbar
Casing : Carbon fiber reinforced polyamid
weight: 750 g
Dimensions: 90 x 199 x 60 mm (WxHxD)
Protection: IP 54
Approvals : ` II 2G EEx ib IIC T5
UL (Class I, Division I, Group A, B, C, D)