400 086 1088

CN

fixed biogas analyzer- Biogas 401

The Biogas Analyser 401 monitors either continuously or intermittently, the gas components contained in

the Biogas (process control) and optionally, monitors the surrounding air to provide an early warning of

dangerous, explosive and non-combustible gases and vapours.

■ Use of various measurement sensors

■ Direct indication of a warning state on an LC-display with colored background lighting

■ Menu-assisted operation via 2 keys

■ 3 alarm levels, independently adjustable from 5–100 % of the selected test range

■ 3 floating alarm outputs for driving external warning and control equipment

■ Floating contact connections for fault and mains failure

■ Serial interface output RS 232 or RS 485

■ 4 – 20 mA current interface

■ Various types of housing available, e.g. 19" rack system, wall-mounting cabinet

■ Up to 6 measurement channels per unit

■ 1 card as Master for the control of the biogas measuring time and interval

■ Extreme service reliability

■ Low energy consumption

■ Peltier cooling element with condensation pump

■ Flow-through adjustement

■ Gas components – filter system and conditioning

■ Water sensor for the detection of condensate break-through

■ Modular construction

■ Monitoring of more than one measuring point possible

Feature

■ Monitoring of biogas, landfill gas or digester gas

■ Warning of explosive gas mixtures

■ Warning of gases that endanger health

■ Warning of non-combustible gases


Sensors: Electrochemical sensors Infrared sensors

Sensor input: 2-wire sensors (TOX 592) or 3-wire sensors (GTR 196)

for warning of explosive gas mixtures

Sensor supply: 24 V DC / 200 mA max.

Test ranges: 

CO2: 0-50 Vol.%

CH4: 0-100 Vol.%

O2: 0 - 21 Vol.%

(optionally continuous)

H2: 0-2 Vol. %

H2S: 0-50 ppm ... 0-5.000 ppm

(only discontinuous)

other ranges by request

Accuracy: < ±3 %, f.s.d.

Ambient temperature: +5 °C to +45 °C

Temperature effects: < 5 % for a ±20 °C change

Installation: Wall-mounting

Output signals: Current output 4 – 20 mA;

RS 232 or RS 485 interface;

for each measurement channel:

3 alarm relays

1 fault relay

Relay rating: 230 V, 450 VA

Voltage supply:

optional:

230 V / 50 Hz

115 V / 60 Hz

Power consumption: 100 VA

Dimensions

(W x H x D):

600 x 478 x 480 mm (9 HU)

Weight: approx. 60 kg

Fixed biogas
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