MF420-Ex-2.1 | 69007

Gasmesssystem mit EX-Zulassung für Zone 1 und 2

manufactured goods

for monitoring of combustible gases and vapours or carbon monoxide
on site calibration by one person (without opening the housing), indication of measured value and system info
measuring principle: Heat tone principle (WT) or electro-chemical principle (EC)
suitable for control units GW-S 2.1, GW-S4.1 and GW-SK 6.1

For the detection and monitoring of flammable, explosive, toxic gases or oxygen. Can also be used in dusty and dirty environments. Can be used as standalone measuring system or in conjunction with the gas alarm systems GW-S 2.1, GW-S4.1 und GW-SK 6.1 as a complete gas alarm facility for hazardous areas. Approved for operation in potentially explosive atmospheres/EX areas zone 1 and zone 2.

Gas sensor with digital display in compact wall mounting housing. Diverse gases can be monitored (see ordering table). Connection cable (shielded) 3 x 1.5 mm² Cu+ protective conductor, supply and return conductor (max. 100 Ohm line resistance). Thanks to the local display, it is possible to immediately read current measured values, perform calibration and set limit values. The concentration is output via the 4–20 mA interface for further processing.

Measuring range

version WT:: 0/100 % UEG

Measuring principle

: heat tone (HT)

Service life:: ca. 3 Jahre

Supply voltage

: DC 18 − 30 V

Current input: ca. 105 mA ca. at 24 V

Operating temperature range

Ambient

temperature class T4:: -40/+60 °C

temperature class T6:: -40/+50 °C

Humidity/moisture

: 10/95 % r.F., Non-condensing

Atmospheric pressure: 700/1 300 hPa

Housing

: Wall mounting housing

material:: aluminium alloy/stainless steel

⌀ x H:: 84 x 78 mm

Weight:: 1.1 kg

Degree of protection:: IP 65 (EN 60529)

Output signal: 4–20 mA

Ex approval: Ex II 2G Ex de IIC T6/T4 Gb

MF420-Ex-2.1 | 69007

Gasmesssystem mit EX-Zulassung für Zone 1 und 2

Benefits

Application

Description

Technical data

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