GM 901 CO Analyzer for the Emission Monitoring and Process Control

Product Publikationstyp
Information
GM 901
CO Analyzer for the Emission
Monitoring and Process Control
Application
The GM 901 Analyzer serves for
instant and non-contact measurements
(cross stack) of carbon monooxide
concentrations, for example, for
optimizing combustion processes. The
GM 901 is available as a cross-stack
or probe version. As a result it is suited
to a broad range of applications
– even for difficult measuring tasks
such as high dust loads, overpressure,
critical flow profiles or high measuring
gas concentrations.
Field of Applications
■ Power plants
■ Coal processing industry
■ Cement industry
■ Waste incineration plants
■ Paper and pharmaceutical industry
■ Steel and glass industry
■ Chemical and food industry
Device Overview
■ GM 901 Cross stack with the components:
– sender with weatherproof cover
– receiver with weatherproof cover
– evaluation unit
■ GM 901 probe version with:
– sender/receiver unit
– GPP measuring probe (gas
permea ble probe; verifiable
using test gases) or
– GMP probe (open aperture;
purge air supply necessary)
– evaluation unit
■ Options:
– PROFIBUS
– optical alignment unit, CO test
cells, mounting flange, PT 100
sensor
– purge air unit for cross-stack
version and GMP probe for
cooling and/or protection of the
sender and receiver
Key Features
■ Rapid, easy installation, commission
and project planning
■ Verifiable with test gases (GPP
probe) or filled test cells
■ User-friendly operation directly
on the evaluation unit
■ Measuring values, measuring
range and limit value indication
directly on the graphical display
■ Extremely low maintenance
requirements
■ No test gas necessary
■ Evaluation unit can be installed
up to a distance of 1,000 m
(3,200 ft) from the measuring
point (e.g. control room)

Measuring
CO
Measuring
CO
Operation
Service
Warning
Malfunction
GM901
Evaluation Unit
Operation
GM 901
Service
Evaluation Unit
Warning
Malfunction
GM 901 Cross stack
Sender
Receiver
1)
CAN bus: max. length
1,000 m (3,200 ft)
1245 ppm
EVU
Evaluation
unit
115/230 V power supply
PROFIBUS
Analog/binary signals
1)
CAN bus GM 901
connection
cable
SLV 4
purge air
unit
GM 901 Probe Version
1)
CAN bus: max. length
1,000 m (3,200 ft)
1245 ppm
EVU
Evaluation
unit
Sender/receiver unit
115/230 V power supply
PROFIBUS
Analog/binary signals
CAN bus 1)
20 mA (temp.)
GPP measuring probe
115/230 V power supply
Technical Data GM 901
Measurement data GM 901 Cross stack GMP Measuring Probe GPP Measuring Probe
Measuring principle
Measuring range CO
■ minimum range
■ maximum range
Accuracy
gas filter correlation
0…500 ppm • m
0…20,000 ppm • m
± 5 % of measuring end value (full scale)
Measuring distance GM 901-05:
0.5…8 m (1.6…26 ft)
active aperture 200…700 mm (8…28 in)
probe length 1.1 m (3.3 ft)
0…100 ppm • m
0…20,000 ppm • m
Response time
5…360 s (sec)
Plant data GM 901 Cross stack GMP Measuring Probe GPP Measuring Probe
Measuring gas temperature up to 250 °C (480 °F), standard;
up 220 °C (430 °F) 3)
max. 300 °C (570 °F); other on request
max 260 °C (500 °F) 4)
8 008 876/01-205 • DIV03/SM • Printed in Germany (11-2003) . Subject to change without prior notice
Ambient temperature
–20…+55 °C (–4…+133 °F)
Measuring gas pressure dependent on purge air blower (