CALOMAT 60 pages

© Siemens AG 2015

Continuous Gas Analyzers, extractive
CALOMAT 6

1

General information
Special versions

■ Overview

Special applications
In addition to the standard combinations, special applications
are also available upon request (e.g. higher sample gas pressure up to 2 000 hPa absolute).

■ Design
19" rack unit
• With 4 HU for installation
- in hinged frame
- in cabinets with or without telescopic rails
• Front plate for service purposes can be pivoted down
(laptop connection)
• Internal gas paths: stainless steel pipe (mat. no. 1.4571)
• Gas connections for sample gas inlet and outlet and for purging gas: fittings, pipe diameter of 6 mm or ¼"
The CALOMAT 6 gas analyzer is primarily used for quantitative
determination of H2or He in binary or quasi-binary non-corrosive
gas mixtures.
Concentrations of other gases can also be measured if their
thermal conductivities differ significantly from the residual gases
like Ar, CO2, CH4, NH3.

■ Benefits
• Small T90 time due to micromechanical-produced Si sensor
• Universally applicable hardware basis, high measuring range
dynamics (e.g. 0 to 1 %, 0 to 100 %, 95 to 100 % H2)
• Integrated correction of cross-interference, no external calculation required
• Open interface architecture (RS 485, RS 232, PROFIBUS)
• SIPROM GA network for maintenance and service information
(option)
• Electronics and analyzer part: gas-tight separation, purgeable, IP65, long service life even in harsh environments
• EEx(p) for Zones 1 and 2 (in accordance with 94/9/EC
(ATEX 2G and ATEX 3G), and Class I Div 2 (CSA) Ex(n)

■ Application
Fields of application
• Pure gas monitoring (0 to 1 % H2 in Ar)
• Protective gas monitoring (0 to 2 % He in N2)
• Hydroargon gas monitoring (0 to 25 % H2 in Ar)
• Forming gas monitoring (0 to 25 % H2 in N2)
• Gas production:
- 0 to 2 % He in N2
- 0 to 10 % Ar in O2
• Chemical applications:
- 0 to 2 % H2 in NH3
- 50 to 70 % H2 in N2
• Wood gasification (0 to 30 % H2 in CO/CO2/CH4)
• Blast furnace gas (0 to 5 % H2 in CO/CO2/CH4/N2)
• Bessemer converter gas (0 to 20 % H2 in CO/CO2)
• Monitoring equipment for hydrogen-cooled turbo-alternators:
- 0 to 100 % CO2/Ar in air
- 0 to 100 % H2 in CO2/Ar
- 80 to 100 % H2 in air
• Versions for the analysis of flammable and non-flammable
gases or vapors for use in hazardous areas (Zone 1 and
Zone 2)

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Siemens AP 01 · 2015

Field device
• Two-door enclosure (IP65) with gas-tight separation of analyzer and electronics sections
• Individually purgeable enclosure halves
• Stainless steel gas path and stubs (mat. no. 1.4571)
• Purging gas connections: pipe diameter 10 mm or 3/8"
• Gas connections for sample gas inlet and outlet: clamping
ring connection for a pipe diameter of 6 mm or ¼"
Display and control panel
• Large LCD panel for simultaneous display of:
- Measured value (digital and analog displays)
- Status bar
- Measuring ranges
• Contrast of LCD panel adjustable using menu
• Permanent LED backlighting
• Washable membrane keyboard with five softkeys
• Menu-driven operation for parameterization, test functions,
adjustment
• User help in plain text
• Graphic display of concentration trend; programmable time
intervals
• Bilingual operating software German/English, English/
Spanish, French/English, Spanish/English, Italian/English
Input and outputs
• One analog output per medium (from 0, 2, 4 to 20 mA; NAMUR
parameterizable)
• Two analog inputs configurable (e.g. correction of cross-interference or external pressure sensor)
• Six binary inputs freely configurable (e.g. for measurement
range switchover, processing of external signals from sample
preparation)
• Six relay outputs freely configurable (e.g. failure, maintenance
request, limit alarm, external solenoid valves)
• Each can be expanded by eight additional binary inputs and relay outputs (e.g. for autocalibration with max. four test gases)
Communication
RS 485 present in basic unit (connection from the rear; for the
rack unit also behind the front plate).
Options
• RS 485/RS 232 converter
• RS 485/Ethernet converter
• RS 485/USB converter
• Connection to networks via PROFIBUS DP/PA interface
• SIPROM GA software as the service and maintenance tool