COMET T0110 Programmable Temperature Transmitter Instruction Manual

COMET T0110 Programmable Temperature Transmitter

Product Information

The T0110 Transmitter is a programmable temperature transmitter with a 4-20 mA output. It is designed for accurate temperature measurement and transmission. The transmitter settings can be adjusted using a PC connected via the optional SP003 communication cable (not included in delivery). The Tsensor program, available for free download at www.cometsystem.com, allows users to set the measured range, turn on/off the LCD display, and make adjustments to the device. The calibration procedure is described in the “Calibration manual.pdf” file, which is commonly installed with the software.

The TxxxxL version of the transmitter features a watertight male connector instead of a cable gland, allowing for easy connection and disconnection of the output cable. The male Lumberg connector RSFM4 has an IP67 protection rating. Models marked TxxxxZ are
non-standard versions of the transmitters and are not covered in this manual.

Before connecting the device, it is important to read the instruction manual provided.

Product Usage Instructions

Device Setting from the Manufacturer

The device settings can be modified using a PC. Please refer to the procedure described at the end of the instruction manual for details.

Installation of the Transmitter

For optimal performance, it is recommended to use shielded twisted copper cable with a maximum length of 1200m. The cable should be installed indoors and should not be parallel to power cabling to avoid interference signals. Maintain a safety distance of up to 0.5m to prevent undesirable induction of interference signals. The outside diameter of the cable for T0110 devices should be between 3.5mm and 8mm (e.g., SYKFY), and for T0110L devices, consider the female connector. Do not connect the shielding at the connector side.

LCD Info Mode

The transmitter has an LCD Info mode that allows users to verify several settings without using a computer. To access this mode, unscrew the transmitter lid and briefly press the button located between the display and interconnection terminals using a tool (e.g., screwdriver). In the Info mode, no measurements or output current generation occur. The transmitter remains in Info mode for 15 seconds before automatically returning to the measuring cycle.

Please note that the above information is a summary from the user manual and is subject to change. For detailed instructions and further information, please refer to the complete user manual provided with the product.

© Copyright: COMET SYSTEM, s.r.o.
It is prohibited to copy and make any changes in this manual, without explicit agreement of company COMET SYSTEM, Ltd. All rights reserved.
COMET SYSTEM, Ltd. makes constant development and improvement of their products. Manufacturer reserves the right to make technical changes to the device without previous notice. Misprints reserved.

Instruction manual for use of T0110 transmitter

• Transmitter is designed for measurement of ambient air temperature at °C or °F. Measuring temperature sensor is non-removable instrument part. Measured temperature is displayed on LCD display. It is possible to switch OFF the LCD display. Transmitter is connected to circuitry by current loop.
• All transmitter setting is performed by means of the PC connected via the optional SP003 communication cable (not included in delivery). Program Tsensor for transmitter setting is available to download free at www.cometsystem.com. Program enables to set measured range and on/off the LCD display. It supports make the adjustment of the device too. This procedure is described at file „Calibration manual.pdf“ which is installed commonly with the software.
• Transmitter version TxxxxL with watertight male connector instead of a cable gland is designed for easy connection/disconnection of the output cable. The protection of male Lumberg connector RSFM4 is IP67.
  Models marked TxxxxZ are non-standard versions of the transmitters. Description is not included in this manual.
  Please read instruction manual before the first device connection.

Device setting from the manufacturer

Transmitter is set from the manufacturer to the following parameters: value at output I1: temperature, range 4 – 20 mA corresponds to -30 to +80 °C display: switched ON Modification of the setting is possible to do by means of the PC using procedure described at the end of this document.

Installation of the transmitter

Transmitter is designed for wall mounting. There are two mounting holes at the sides of the case. Don’t connect transmitter while power supply voltage is on. Interconnection terminals of T0110 are accessible after unscrewing four screws and removing the lid. Lace the cable through a gland at the case wall. Connect the cable to terminals with respecting the signal polarity (see figure). Terminals are self-clamping and can be opened by a suitable screwdriver. For the opening, insert the screwdriver to upper terminal hole and lever by him. Do not remember to tighten glands and case lid with inserted packing after cables connecting. It is necessary for warranting of protection IP65. Connect complementary female connector for T0110L transmitter in accordance with the table in Appendix A of this manual. It is recommended to use shielded twisted copper cable, maximal length 1200m. The cable must be located at indoor rooms. The cable should not be led in parallel along power cabling. Safety distance is up to 0.5 m, otherwise undesirable induction of interference signals can appear. Outside diameter of the cable for T0110 device must be from 3,5 to 8 mm (e.g. SYKFY), for device T0110L with respect to the female connector. Do NOT connect shielding at connector side.

In the application where air flow is too low it is possible that measurement accuracy may be a bit lower (in decimals of °C) due to undesirable warm influence which develops in transmitter electronics because of its own power dissipation. Mechanical construction of the transmitter and working position is minimizing this effect, but in critical applications we recommend to use optimal value of load resistor Rz (see “Typical application wiring”). It minimizes power dissipation to minimal value. If Uss and Rz are set, it is possible to do it by inserting of suitable serial resistor into current loop at estimation device side.

Electrical system (wiring) may do only worker with required qualification by rules in operation.

Dimensions – T0110

Dimensions – T0110L

Typical application wiring

Calculation of minimum power voltage Uss for proper operation:
Uss min> Uo min+Imax*Rz, where: Uo min= 9 V Imax… approximately 20 mA Rz… sensing resistor (shunt)

Choice of optimal power voltage and load resistor for current loop.

area no 1 ….. transmitter doesn’t work correctly
area no 2 ….. optimal Uss and Rz
area no 3 ….. transmitter is working but it is possible to see undesirable warm influence.

LCD Info mode

Several settings of installed transmitter are possible to verify without using computer. It is necessary to connect at least power of current loop I1.
Unscrew the transmitter lid and shortly press button between display and interconnection terminals by means of a tool (e.g. screwdriver).

• Range and type of value for output 1 (current loop I1 = symbol „1“ on display). Type of value, assigned to output 1, is indicated by displayed unit (here °C = temperature). Upper line displays current value corresponding to measured value (lower line). Here 4 mA corresponds to -30 °C.
• Press button again to get value for upper point (same output, same value) similarly as at previous point. Here 20 mA corresponds to 80 °C.
• Press button again to end info mode and display actual measured values.

Notice: during info mode no measurement and no output current generation proceed. The transmitter stays at info mode 15 s and then automatically goes back to measuring cycle.

Readings on LCD display

°C, °F
Reading next to this symbol is measured temperature or error state of value.

Technical parameters:

• Analog output:
  • Current loop with range from 4 to 20 mA
  • Current output in case of error: <3.8 mA or >24 mA
• Measuring parameters:
• Ambient temperature (internal RTD sensor Pt1000/3850ppm):
  • Measuring range: -30 to +80 °C
  • Display resolution: 0.1 °C
  • Accuracy: ± 0.4 °C (For values on LCD display. For values on analog output too, if selected output range is set inside measuring range).
  • Power: 9 to 30 V dc, maximum ripple 0.5 %
  • Response time (air flow approximately 1 m/s):
  • temperature: t90 < 4 min (temperature step 20 °C)
  • Recommended interval of calibration: 2 years
  • Measuring interval and LCD display refresh: 0.5 s
  • Communication with computer: via USB port by means of USB communication cable SP003
• Protection: IP65
• Operating conditions:
  • Operating temperature range: -30 to +80 °C, over +70°C switch LCD display OFF
  • Operating humidity range: 0 to 100 %RH
  • Outer characteristics in accordance with Czech National Standard 33-2000-3:
  • normal environment with the specifications: AE1, AN1, BE1
  • Working position: the stem downwards
  • Electromagnetic compatibility: complies EN 61326-1
  • Not allowed manipulations: It is not allowed to operate the device under other than specified conditions in technical parameters. Devices are not designed for locations in chemically aggressive environment.
  • Storing conditions: temperature -30 to +80 °C
  • humidity 0 to 100 %RH without condensation
  • Dimensions: see dimensional drawings
  • Weight: approximately 140 g
  • Material of the case: ASA

Procedure of modification of transmitter adjustment

• device adjustment is performed by means of the optional SP003 communication cable, connected to USB port of the PC.
• It is necessary to have installed configuration program Tsensor on the PC. It is free to download at www.cometsystem.com. During installation please take care about installation of driver for USB communication cable.
• Connect SP003 communication cable to the PC. Installed USB driver detect connected cable and create virtual COM port inside the PC.
• Unscrew four screws of the device lid a remove the lid. If device is already installed to measuring system, disconnect leads from terminals.
• Connect SP003 communication cable to the device. Display must light up, or at least must light up all symbols for one second (if LCD was switched OFF by program before).
• Run installed Tsensor program and select corresponding communication COM port (as described above).
• When new setting is saved and finished, disconnect the cable from the device, connect leads into its terminals and place the lid back to the device.

Error states of the device

Device continuously checks its state during operation. In case error is found LCD displays corresponding error code:

• Error 0
  First line displays „Err0“.
  Check sum error of stored setting inside device’s memory. Output value is < 3.8 mA. This error appears if incorrect writing procedure to device’s memory occurred or if damage of calibration data appeared. At this state device does not measure and calculate values. It is a serious error, contact distributor of the instrument to fix.

• Error 1
  Measured value is over upper limit of allowed full scale range. There is a reading „Err1“ on LCD display. Output value is about 24.5 mA. This state appears if measured temperature is higher than approximately 600°C (i.e. high non-measurable resistance of temperature sensor, probably opened circuit).

• Error 2
  There is a reading „Err2“ on LCD display. Output value is about 3.8 mA. Measured value is below lower limit of allowed full scale range. This state appears if measured temperature is lower than approximately -210°C (i.e. low resistance of temperature sensor, probably short circuit).

• Error 3
  There is a reading „Err3“ on LCD display upper line.
  Error of internal A/D converter appeared (converter does not respond, probably damage of A/D converter). No measurements proceed. Output value is about 3.8 mA. It is a serious error, contact distributor of the instrument.

• End of operation
  Device itself (after its life) is necessary to liquidate ecologically!

Technical support and service

Technical support and service is provided by distributor. For contact see warranty certificate.

COMET SYSTEM, s.r.o., Bezrucova 2901 756 61 Roznov pod Radhostem, Czech republic

Specifications are subject to change without notice. IE-SNC-T0110-06

Appendix A

References

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

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