COMET T5140 CO2 Industrial Transmitters User Manual

COMET T5140 CO2 Industrial Transmitters

Product Description
The product is a CO2 concentration measuring device that uses a dual- wavelength NDIR sensor with multipoint calibration. This ensures maintenance- free operation and long-term stability. The measured values are displayed on a two-line LCD display, and the device also has a three-color LED for visual indication of CO2 concentration. The device can be configured using the TSensor software and can be connected to a PC using the optional USB adapter SP003. The device comes in six models, with different output types, measured values, constructions, and mounting options.

Product Usage Instructions

To install the device, unscrew the four screws in the corners of the case and remove the lid. Pass the connecting cable through the released gland and connect the wires according to the diagram. Tighten the gland and screw the lid back on. Make sure to use shielded cables with appropriate wire cross- sections and avoid potential interference sources.

When you switch on the device, an internal test will start, and the LCD display will show —- instead of CO2 concentration value for about 20 seconds. The device does not require any special operation or maintenance, but periodic calibration is recommended for measurement accuracy validation.

If an error occurs during operation, a relevant code will be displayed on the device. For example, Err 2 indicates a CO2 concentration measurement error, while Err 4 indicates that an external probe CO2G-10 is not connected. If you encounter any serious errors, please contact the device distributor.

When using the device, follow these safety instructions: do not connect or disconnect the transmitter while power supply voltage is on; installation, electrical connection, and commissioning should be performed by qualified personnel only; and dispose of electronic components according to legal requirements.

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 CO2 concentration 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 CO2 concentration. Using TSensor software (see www.cometsystem.com) you can set up measuring range ofdevice output, measurement mode of CO2 concentration and limits of CO2 LED 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.

models marked TxxxxZ are 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 CO2 probe unpack and connect to the T5141 (T5241) device. Then place the probe into the measured environment. The T5145 (T5245) transmitter install by inserting the metal stem into the Pg21 cable gland so that the measured air was fed into the head of device (see Technical specification). To fasten the stem it is also possible to use the flange PP4 or PP9 (optional accessory). Pay attention 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.
• The connecting terminal is accessible after unscrewing the four screws in the corners of the case and removing the lid. Pass the 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 CO2 concentration 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 – CO2 concentration 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

Technical specifications

Electrical Wiring

LED indication (preset by manufacturer): green (0 to 1000 ppm), yellow (1000 to 1200 pm), red (1200 to 2000/10000 ppm

References

• Manufacturer of Dataloggers, Thermometers, Hygrometers,CO2 meters
• Manufacturer of Dataloggers, Thermometers, Hygrometers,CO2 meters

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