Honeywell 201T User manual

Dispositif de détection de gaz
Gas Detection Device
Manuel de l’utilisateur
201T
User Manual
ERP 511391
2/07

Gas Detection Device
201T
User Manual
ERP 511391
2/07

511391 201T User Manual iii
2/07 Honeywell
Notices and Trademarks
Copyright by Honeywell International Inc.
Release 511391 February 2007
While this information is presented in good faith and believed to be accurate,
Honeywell disclaims the implied warranties of merchantability for a particular
purpose and makes no express warranties except as may be stated in its
written agreement with and for its customers.
In no event is Honeywell liable to anyone for any indirect, special or
consequential damages. The information and specifications in this document
are subject to change without notice.
Honeywell Analytics
4005 Matte Blvd, Unit G
Brossard, Quebec, J4Y 2P4

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Contacts
World Wide Web
The following Honeywell Websites may be of interest to our customers:
Telephone
Contact us by telephone at the numbers listed below:
Sales Informations
Contact us at [e-mail]
Honeywell Organization WWW Address (URL)
Honeywell Analytics http://honeywellanalytics.com
Corporate http://www.honeywell.com
International http://content.honeywell.com/global/
Organization Phone Number
United States
and Canada Honeywell Analytics
1-800-563-2967
1-450-619-2450
Fax: [phone]
Asia Pacific Honeywell Asia Pacific Inc.
Hong Kong (852) 23 31 9133
Europe Honeywell Pace
Brussels, Belgium [32-2]728-2711
Latin America Honeywell International Inc.
Sunrise, Florida, U.S.A. [phone]

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Symbol Definitions
The following table lists the symbols used in this document to denote
certain conditions:
Symbol Definition
ATTENTION: Identifies information that requires
special consideration
TIP: Identifies advice or hints for the user, often
in terms of performing a task
REFERENCE _ INTERNAL: Identifies an
additional source of information within the
bookset.
CAUTION
Indicates a situation which, if not avoided, may
result in equipment or work (data) on the system
being damaged or lost, or may result in the
inability to properly operate the process.
CAUTION: Indicates a potentially hazardous
situation which, if not avoided, may result in minor
or moderate injury. It may also be used to alert
against unsafe practices.
CAUTION: Symbol on the equipment refers the
user to the product manual for additional
information. The symbol appears next to required
information in the manual.
WARNING: Indicates a potentially hazardous
situation which, if not avoided, could result in
serious injury or death.
WARNING symbol on the equipment refers the
user to the product manual for additional
information. The symbol appears next to required
information in the manual.

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Contents
Unpacking ........................................................................................ 11
Description ....................................................................................... 11
Installation Guidelines ...................................................................... 11
Determining the Number of Systems ............................................... 12
Wall-mount Installation ..................................................................... 13
Duct-type Installation ........................................................................ 15
Detection Range and Alarm Levels .................................................. 17
ELECTRICAL WIRING ..................................................................... 18
Remote Sensor Configuration (Optional) .......................................... 19
Specifications ................................................................................... 20
Periodic Inspections And Calibration ................................................ 20
USER INTERFACE .......................................................21
Testing Procedure ............................................................................ 21
4-20 mA CONFIGURATION ................................................................. 22
Addresses Configuration ................................................................... 25
Network vs Binary Addresses .............................................................. 26
LIMITED WARRANTY ....................................................29
Limited Warranty .................................................................................. 29
ReStocking Policy ................................................................................. 29
Exclusions ............................................................................................. 30
Warranty Limitation and Exclusion ....................................................... 30
Disclaimer of Unstated Warranties ........................................................ 31
Limitation of Liability .............................................................................. 31

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Unpacking
Unpacking
After opening the package and removing the equipment and
components, make sure that you have all the items described on the
order form or packing slip.
Description
The 201T Series transmitters are able to detect a wide range of toxic
and explosive gasses. The transmitters can operate in stand-alone or
network mode via their optional 4-20mA or relays.
Catalytic sensors are used to detect hundreds of different gasses and
inflammable vapor concentrations. Toxic gasses are detected by way of
electrochemical cells, while metal-air battery cells are used to detect
oxygen. Moreover, a second generation of semi-conductor detectors
offer a highly effective solution for a variety of different applications.
Installation Guidelines
These guide lines must be strictly observed to assure that the
equipment will work properly. If they are not applied, Honeywell will not
recognize any liability in case of improper operation:
• Make sure to locate all units easily accessible for proper service.
• Avoid any location where units could be subject to vibrations.
• Avoid any location close to any electromagnetic interference.
• Avoid any location where there are large temperature swings.
• Verify local requirements and existing regulations which may affect
the choice of location.

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Determining the Number of Systems
Determining the Number of Systems
The number of transmitters required is determined by a unit’s
operational radius of surveillance. Using the table below, the number of
units required can be easily evaluated.
Several factors can influence the number of transmitters required, such
as: intended use, type of gas and the level of protection required. The
greater the number of transmitters, the greater the level of protection.
Gas Detected Surveillance
Radius Area Covered
CO Carbon monoxyde 50 ft (15 m) 7854 sq ft (707 sq m)
NO2 Nitrogen dioxide
Others 23 ft (7 m) 1257 sq ft (154 sq m)

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Wall-mount Installation
Wall-mount Installation
Installation of the monitor simply requires the physical mounting of the
enclosure and connection of the power and output lines.
* May differ in certain applications. Hot NO2 from exhaust systems is
lighter than ambient air.
Note: The installation heights recommended by Honeywell represent
general guidelines. Always confirm with local laws and
regulations before proceeding, as these take precedence over
manufacturer's recommendations.
Detected Gas Relative Density
(air = 1) Installation Height
C2H4O Ethylene oxide 1.50 1 ft. (30 cm) from floor
CL2Chlorine 2.50 1 ft. (30 cm) from floor
CO Carbon monoxide 0.968 3 - 5 ft. (1 - 1.5 m) from floor
H2S Hydrogen sulfide 1.19 1 ft. (30 cm) from floor
H2 Hydrogen 0.07 1 ft. (30 cm) from ceiling
HCL Hydrogen chloride 1.30 1 ft. (30 cm) from floor
HCN Hydrogen cyanide 0.932 1 ft. (30 cm) from ceiling
NO Nitrogen monoxide 1.04 1 ft. (30 cm) from floor
NO2 Nitrogen dioxide 1.58 (*cold) 1 - 3 ft. (30 cm to 1 m) from ceiling
O2 Oxygen 1.43 3 - 5 ft. (1 - 1.5 m) from floor
SO 2 Sulfur dioxide 2.25 1 ft. (30 cm) from floor
R11
Refrigerants
5.04
1 ft. (30 cm) from floor
R12 4.20
R22 3.11
R134A 3.52
COMB
Most combustibles are heavier than air, with the exception of methane, hydro
gen,ethylene and acetylene. For gases that are heavier than air, sensors should
be installed approximately 30 cm (1 ft.) from the floor. For combustibles that are
lighter than air, sensors should be installed 30 cm (1 ft.) from the ceiling, close
to the potential leak source.

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Wall-mount Installation
201T housing with bottom view and knock-out dimensions (in inches).
Note: A separate knock-out and conduit must be used when cables
connected to relay use more than 24 Vdc
201T housing and mounting dimensions

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Duct-type Installation
Duct-type Installation
The 201T can be duct-mounted. It is most efficient when air speed is
between 500 and 4,000 ft/minute (2.5 to 20.3 m/sec), and can be
installed either for fresh air or exhaust monitoring. Make sure to verify
all the requirements and existing regulations that may affect the choice
of its location. We recommend installation on a straight duct 3 feet (1 m)
away from any curve.
1. Post the drilling guide
to the ventilation duct.
2. Drill the openings for
the sampling tubes.
3. Insert the sampling
tube with lateral air
holes in the
appropriate connector,
orienting the air holes
facing airflow. Tighten
with the (8-32 5/16”)
screw on the
connector.
4. Insert the exhaust tube
into the appropriate
connector, orienting
the slant away from airflow. Tighten with the (8-32 5/16”) screw on
the connector.
5. For a ventilation duct longer than 20 inches (51 cm), extra tubing is
necessary. It is preferable to drill a hole at the opposite side facing
the detection unit to support the far end of the tube. Seal the end of
the tube with the cork supplied. If necessary, seal the openings on
the duct around the tubings.

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Duct-type Installation
6. Install the box on the duct.
7. Connect the power and the outputs as shown in the ELECTRICAL
WIRING section.
8. Before mounting the cover of the sampling unit box, start the
ventilation feeding fan and check if there is any leakage. If
necessary, seal with air plugs.
9. The cover should be mounted using metallic screws (6-32 1/2”).
Note: To convert from CFM to velocity (ft./min.), divide the flow by the
area. Example: In a 2 ft. x 4 ft. duct, where the area is 8 sq. ft. and
the air velocity is 30,000 CFM : 30,000 CFM / 8 sq. ft. = 3,750 ft/
minute.

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Detection Range and Alarm Levels
Detection Range and Alarm Levels
A different alarm level may have been programmed in order to satisfy
the constraint of a particular application.
Gas Detected Range Alarm A Alarm B AlarmC
C2H4O Ethylene oxide 0-20.4 ppm 1.0 ppm 5.0 ppm 9.0 ppm
CL2Chlorine 0-15.3 ppm 0.5 ppm 1.0 ppm 13.0 ppm
CO50 Carbon monoxide 0-51 ppm 9 ppm 15 ppm 45 ppm
CO100 Carbon monoxide 0-102 ppm 25 ppm 45 ppm 90 ppm
CO250 Carbon monoxide 0-255 ppm 25 ppm 200 ppm 225 ppm
CO500 Carbon monoxide 0-510 ppm 50 ppm 250 ppm 450 ppm
CO1000 Carbon monoxide 0-1020 ppm 100 ppm 500 ppm 900 ppm
H 2S Hydrogen sulfide 0-51 ppm 10 ppm 15 ppm 45 ppm
H2Hydrogen 0-2.55% Vol. 1.00% Vol. 2.00% Vol. 2.25% Vol.
HCL Hydrogen chloride 0-51 ppm 3 ppm 4 ppm 45 ppm
HCN Hydrogen cyanide 0-51 ppm 5 ppm 9 ppm 45 ppm
NO Nitrogen monoxide 0-102 ppm 25 ppm 35 ppm 90 ppm
NO2Nitrogen dioxide 0-10.2 ppm 0.72 ppm 2 ppm 9 ppm
O2 Oxygen 0-25.5% Vol. 19.5% Vol. 22.0% Vol. 23.0% Vol.
SO2Sulfur dioxide 0-10.2 ppm 2 ppm 5 ppm 9 ppm
R-11
Refrigerant Q2 0-1020 ppm 500 ppm 750 ppm 900 ppm
R-12
R-22
R134A
COMB Combustibles 0-102% LEL 25% LEL 50% LEL 90% LEL

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Electrical Wiring
Electrical Wiring
24V IN
V
+-
V
E.O.L.
BShield
R>
RC>
NC NO +-
NC
NO A
SORTIE 4@20mA OUTPUT
J3
J1
PT1
LD10 S2
V+
ABB
A
V-
V+
V-
previous
next
next
previous
EOL Positions
Disabled RRC
Always respect minimum
voltage requirements at
device
RELAY OUTPUTS
N.O. N.C.
COMM
Normally closed
Normally open
RISK OF ELECTRIC SHOCK