Comet T5140 User manual

COMET SYSTEM, s.r.o., Bezrucova 2901 Specifications are subject to change without notice.
756 61 Roznov pod Radhostem, Czech Republic ie-snc-n-t51(2)xx-06
CO2industrial transmitters with 4–20 mA or 0-10 V output
QUICK START MANUAL
T5140 •T5240 •T5141 •T5241 •T5145 •T5245
PRODUCT DESCRIPTION
Programmable transmitters with 4 –20mA or 0 - 10V output are designed for measurement of CO2 concentration in air. Devices can
only be used in a chemical non-aggressive environment.
The CO2concentration is measured using the dual wavelength NDIR sensor with the multipoint calibration. This principle compensates
aging of the sensing elements and offers maintenance free operation and outstanding long term stability.
Measured values are displayed on a two-line LCD display. The device is also equipped with three-color LED for visual indication
of the CO2concentration. Using TSensor software (see www.cometsystem.com) you can set up measuring range of device output,
measurement mode of CO2concentration and limits of CO2LED indication. For device connection to PC is used USB adapter SP003
(optional accessories).
Durable plastic case of the devices contains electronics and connection terminals. For easy connection/disconnection of the output cable
use the transmitter in version TxxxxL with plug connector Lumberg instead of the cable gland.
type *
output
measured value
construction
mounting
T5140
4 - 20 mA
CO2
ambient air
wall
T5240
0 - 10 V
CO2
ambient air
wall
T5141
4 - 20 mA
CO2
probe on cable
wall
T5241
0 - 10 V
CO2
probe on cable
wall
T5145
4 - 20 mA
CO2
duct mount
fix by means of the cable gland
T5245
0 - 10 V
CO2
duct mount
fix by means of the cable gland
* models marked TxxxxZare custom - specified devices
INSTALLATION AND OPERATION
The transmitters T5140 (T5240) and T5141 (T5241) fasten on a flat surface with two screws or bolts. The external CO2probe unpack
and connect to the T5141 (T5241) device. Then place the probe into the measured environment. The T5145 (T5245) transmitter install
by inserting themetalstem intothe Pg21cable glandsothat themeasured airwasfedinto theheadof device(see Technicalspecification).
To fasten the stem it isalso possible to use the flangePP4 or PP9 (optional accessory). Payattention to the mount of the device, because
incorrect choice of working position or measuring point could adversely affect accuracy and long-term stability of measured values.
Theconnectingterminalisaccessibleafter unscrewingthefour screwsinthecornersof thecaseandremoving thelid.Passthe connecting
cable through released gland and connect the wires according to diagram. Tighten gland and screw the lid.
For device connection it is recommended to use shielded cable (external diameter 4 to 8mm) with wire cross-section 0.14 to 1.5 mm2.
Maximum cable length of the current loop is 1200m, maximum voltage output cable length is 15m. For TxxxxL devices it is recommended
to use shielded cable (external diameter 3 to 6.5 mm) with wire cross-section max. 0.75 mm2. All cables should be located as far as
possible from potential interference sources.
The internal test starts after switching the device. During this time (about 20 s) LCD display shows ---- instead of CO2concentration
value.
Devices don’t require special operation and maintenance. We recommend you periodic calibration for measurement accuracy validation.
ERROR STATES
Device continuously checks its state during operation and if an error appears, it is displayed relevant code:
Err 2 - CO2concentration measurement error occurred, not connected external probe CO2G-10 is indicated as Err4
Err 0, Err 3 and Err 4 - it is a serious error, please contact distributor of the device.
SAFETY INSTRUCTIONS
-Don’t connect or disconnect transmitter while power supply voltage is on.
- Installation, electrical connection and commissioning should be performed by qualified personnel only.
- Devices contain electronic components, it needs to liquidate them according to legal requirements.
- To complement the information in this data sheet read the manuals and other documentations that are
available in the Download section for a particular device at www.cometsystem.com

Authorized Distributor in Australia
Pacific Sensor Technologies Pty Ltd
Unit 4, 3 Neutron Place Rowville, VIC 3178 Australia
1300 662 720 | [email protected]
www.pacificsensortech.com.au