COMET T0310 Programmable Transmitter Of Temperature User Manual

COMET T0310 Programmable Transmitter Of Temperature

Instruction

Device type| Temperature| Pressure| Output| Galvanic isolated output
---|---|---|---|---
T0310| | –| RS232| –
T0410| | –| RS485|
T5410| | ü| RS485|

Device is designed for the measurement of ambient temperature at °C or °F, device T5410 support atmospheric pressure measurement at hPa, PSI, inHg, mBar, oz/in2, mmHg, inH2O and kPa too. It is possible to set pressure correction for altitude (offset). Device setting is provided by user’s software, see latter. Device T0310 communicate via link RS232, devices T0410 and T5410 via link RS485. Supported communication protocols are Modbus RTU, protocol compatible with standard Advantech-ADAM, ARION and communication with HWg–Poseidon devices. Devices are preset from the manufacturer to Modbus RTU communication protocol. If you would like to use different communication protocol then Modbus RTU, it is necessary preset them through user’s software – see latter. Temperature and pressure sensors are non-removable device parts, pressure sensor is placed inside the electronic case. Measured values are optionally shown on dual line LCD display. Display can be switched OFF totally too.

Use user’s software TSensor for the setting of all device parameters (recommended). It is free to download at www.cometsystem.com. It supports making the adjustment of the device too. This procedure is described at file „Calibration manual.pdf“ which is installed commonly with the software. Change of some parameters is possible to do without user’s software with Windows hyperterminal (change of communication protocol, its parameters, LCD display setting). It is described in file “Description of communication protocols of Txxxx series” which is free to download at the same address.

Transmitter version T xxxx L with a watertight male connector instead of a cable gland (RS232) or glands (RS485) is designed for easy connection/disconnection of communication cable. Male Lumberg connector RSFM4 has protection IP67.

Models marked T xxxx Z are non-standard versions of the transmitters. Description is not included in this manual.

Please read the instruction manual before the first device connection.

Device setting from the manufacturer

If special setting was not required in the order device is set from the manufacturer to the following parameters:

• communication protocol: Modbus RTU
• device address: 01
• communication speed: 9600Bd, without parity, 2 stop bits
• display: switched ON
• temperature unit: °C
• pressure unit: hPa
• correction for altitude: 0 hPa (absolute pressure)

Device installation

Device is designed for wall mounting. There are two mounting holes at the sides of the case. Don’t connect device while power supply voltage is on. Interconnection terminals for T0310, T0410 and T5410 devices 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 smaller terminal hole and lever by him. Do not forget 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 T0310L, T0410L and T5410L transmitters in accordance with the table in Appendix B of this manual. Working position is with the sensor cover downwards – see figure.

Devices T0310 are supplied with connection cable equipped with connector for connection to RS232 interface. For devices with RS485 output there is recommended to use shielded twisted copper cable, maximal length 1200m. The cable must be located at indoor rooms. Nominal cable impedance should be 100 Ω, loop resistance max. 240 Ω, cable capacity max. 65 pF/m. Outside diameter of the cable for T0410 and T5410 connection must be from 3 to 6.5 mm. Suitable cable is e.g. SYKFY 2x2x0.5 mm2, where one wire pair serves for device powering and the other pair for the communication link. For devices T0310L, T0410L and T5410L use cable with respect to female connector parameters. Do NOT connect shielding at connector side. The cable should be led in one line, i.e. NOT to „tree“ or „star“. The termination resistor should be located at the end. For short distance another topology is allowed. Terminate the network by a termination resistor. The value of the resistor is recommended about 120 For short distance termination resistor can be left out.

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

Dimensions – T0310 Transmitter with RS232

Dimensions – T0410, T5410 Transmitter with RS485

Dimensions – T0310L, T0410L, T5410L Connection: see Appendix B

Typical application wiring, a connection of terminals

T0310 – power from communication port T0310 – power from external voltage source

T0410, T5410 – RS485

Info mode If in doubt of setting of installed device, verification of its address is enabled even without using computer. Power should be connected. Devices with RS232 interface have address always set to one.

Unscrew device cover and shortly press button next to connection terminals (jumper should be opened). Actual adjusted address of the device is displayed on LCD display at decimal base, for HWg-Poseidon’s communication protocol there is shown number corresponding with ASCII address code. Next press of button exits info mode and actual measured values are displayed.

Note: No measurement and communication is possible during info mode. If device stays in info mode for longer than 15 s, device automatically returns to the measuring cycle.

Setting of pressure correction for altitude For device T5410 only! If there is necessary to read value of atmospheric pressure corrected with respect to altitude, it is possible to set corresponding pressure offset for this altitude. It is possible to do it with Users software. This value is then automatically added to measured pressure value. The resultant value of pressure with added correction for altitude must be between 300 hPa and 1350 hPa (from 4.351 PSI to 19.580 PSI). Outside this range device sends value of Error 2!

Description of communication protocols Detailed description of each communication protocols including examples of communication is available in individual document “Description of communication protocols of Txxxx series” which is free to download at www.cometsystem.com.

Note: After switching ON the power of the device it can last up to 2 s before the device starts to communicate and measure!

Modbus RTU Control units communicate on master-slave principle in half- duplex operation. Only master can send request and only addressed device responds. During sending of request no other slave station should respond. During communication, data transfer proceeds in binary format. Each Byte is sent as eight bit data word in format: 1 start bit, data word 8 bit (LSB first), 2 stop bits1 , without parity. Device supports communication speed from 110Bd to 115200Bd. Sent request and response have syntax: ADDRESS OF DEVICE – FUNCTION – Modbus CRC

Supported functions

• 03 (0x03): Reading of 16-bit registers (Read Holding Registers)
• 04 (0x04): Reading of 16-bit input gates (Read Input Registers)
• 16 (0x10): Setting of more 16-bit registers (Write Multiple Registers)

Jumper and button are located next to the connection terminals. If the

communication protocol Modbus is selected the function of jumper and button is as follows:

• Jumper opened – device memory is protected from writing, from device side it is only enabled to read measured value, writing to memory is disabled (no change of device address, communication speed and LCD setting is enabled).
• Jumper closed – writing to device memory is enabled by means of User’s software.
• Jumper opened and button shortly pressed – device goes to Info mode, see chapter „Info mode“.
• Jumper closed and button pressed for longer than six seconds – causes restoring of manufacturer setting of communication protocol, i.e. sets Modbus RTU communication protocol, device address sets to 01h and communication speed to 9600Bd – after button press there is “dEF” message blinking at LCD display. Six seconds later message “dEF” stays shown, it means manufacturer setting of communication protocol is done.

Modbus registers of the device

Variable| Unit| Address[hex] X| Address[dec] X| Format| Size| Status
---|---|---|---|---|---|---
Measured temperature| [°C] [°F]| 0x0031| 49| Int10| BIN16| R
Address of device| [-]| 0x2001| 8193| Int| BIN16| R/W*
Code of communication speed| [-]|

0x2002

| ****

8194

| ****

Int

| ****

BIN16

| ****

R/W*

Serial number of device Hi| [-]| 0x1035| 4149| BCD| BIN16| R
Serial number of device Lo| [-]| 0x1036| 4150| BCD| BIN16| R
Version of Firmware Hi| [-]| 0x3001| 12289| BCD| BIN16| R
Version of Firmware Lo| [-]| 0x3002| 12290| BCD| BIN16| R

Addition for device T5410 – with atmospheric pressure measurement

Variable| **Unit*| Address[hex] X| Address[dec] X| Format| Size| Status**
---|---|---|---|---|---|---

Atmospheric pressure

| hPa| ****

0x0034

| ****

52

| Int*10| ****

BIN16

| ****

R

PSI| Int1000
inHg| Int100
mBar| Int10
oz/in2| Int10
mmHg| Int10
inH2O| Int10
kPa| Int*100

Explanation:

• • depends on device setting (by User’s software)
• Int10 register is in format integer10
• R register is designed only for reading
• W* register is designed for writing, for details see file “Description of communication protocols of Txxxx series”
• X register addresses are indexed from zero – register 0x31 is physically sent as value 0x30, 0x32 as 0x31 (zero based addressing).

Note: In case there is a need for reading of measured values from the device with higher resolution than one decimal, measured values in device are stored also in „Float“ format, which is not directly compatible with IEEE754.

Protocol compatible with Advantech-ADAM standard

Control units communicate on master-slave principle in half-duplex operation. Only master can send requests and only addressed device responds. During sending request any of slave devices should respond. During communication data is transferred in ASCII format (in characters). Each Byte is sent as two ASCII characters. Device supports communication speed from 1200Bd to 115200Bd, parameters of the communication link are 1 start bit + eight bit data word (LSB first) + 1 stop bit, without parity.

Jumper is located next to connection terminals.

If communication protocol compatible with standard Advantech-ADAM is selected, its function is the following:

• If jumper during switching ON the power is closed, device always communicates with following parameters regardless stored setting in the device: communication speed 9600 Bd, without check sum, device address 00h
• If jumper during switching ON the power is not closed, device communicates in accordance with stored setting.
• If jumper is closed during device operation, device temporarily changes its address to 00h, it will communicate in the same communication speed as before closing jumper and will communicate without check sum. After jumper is opened setting of address and check sum is reset in accordance with values stored in the device.
• Communication speed and check sum are possible to change only if jumper is closed.
• Jumper closed and button pressed for longer than six seconds – causes restoring of manufacturer setting of communication protocol, i.e. sets Modbus RTU communication protocol, device address sets to 01h and communication speed to 9600Bd – after button press there is “dEF” message blinking at LCD display. Six seconds later message “dEF” stays shown, it means manufacturer setting of communication protocol is done.

For communication with device T5410 which measure more than one value, there is necessary to add at the end of command, number of communication channel, where the measured value is mapped. Command for value reading is #AAx(CRC) cr, where AA is device address, x is number of communication channel, CRC is check sum (can be used or not).

Command #AA(CRC) cr for reading all measured values at once is supported for multichannel devices since firmware version 02.60.  Response: > (temperature)(relative humidity)(dew point temperature)(absolute humidity) (specific humidity)(mixing ratio)(specific enthalpy)(atmospheric pressure)cr

ARION communication protocol – AMiT company The device supports communication protocol ARiON version 1.00. For more details see file “Description of communication protocols of Txxxx series” or www.amit.cz

Communication with HWg Poseidon units Device supports communication with HWg-Poseidon units. For communication with this unit set the device with setup software TSensor to communication protocol HWg–Poseidon and set correct device address. This communication protocol supports read temperature at °C, relative humidity, one of computed value (dew point temperature or absolute humidity) and barometric pressure at kPa (depended by device type). For atmospheric pressure correction to altitude setting
there is Users software TSensor.

Jumper and button

If communication with HWg Poseidon unit is selected, the function of jumper and button is as follows:

• Jumper opened and button shortly pressed – device goes to Info mode, see chapter „Info mode“.
• Jumper closed and button pressed for longer than six seconds – causes restoring of manufacturer setting of communication protocol, i.e. sets Modbus RTU communication protocol, device address sets to 01h and communication speed to 9600Bd – after button press there is “dEF” message blinking at LCD display. Six seconds later message “dEF” stays shown, it means manufacturer setting of communication protocol is done.

Error States of the device

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

• Error 0
  First line displays „Err0“.
  Check sum error of stored setting inside device’s memory. 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 device to fix.
  Error 1 Measured temperature (no pressure) is over upper limit of allowed full scale range. There is a reading „Err1“ on LCD display. Value read from the device is +999.9 (for pressure reading there is +999.9 hPa correct value). This state occurs 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. Measured temperature is below lower limit of allowed full scale range or pressure measurement error occurred. Value read from the device is -999.9.
  This state appears in case of:

  • Measured temperature is lower than approximately -210°C (i.e. low resistance of temperature sensor, probably short circuit).
  • Measured pressure value with added correction for altitude is outside of range from 300 hPa to 1350 hPa (from 4.351 PSI to 19.580 PSI) or the pressure sensor is damaged. Please check setting of pressure correction for altitude with User’s software.

• Error 3 There is a reading „Err3“ on LCD display. Error of internal A/D converter appeared (converter does not respond, probably damage of A/D converter). This error does NOT affect pressure measurement. Measured temperature is NOT measured. It is a serious error, contact distributor of the device.

• Error 4 There is a reading „Err4“ on LCD display. It is internal device error during pressure sensor initialization. Under this condition device does NOT measure atmospheric pressure. Value read from device is -999.9. Pressure sensor is probably damaged. It is a serious error, contact distributor of the device.

Readings on LCD display

• °C, °F Reading next to this symbol is measured temperature or error state of value.
• hPa, PSI, inHg, Reading next to this symbol is measured pressure or error state of value. If selected pressure unit is mBar or oz/in2 or mmHg or inH2O or kPa, there is shown only value (number) without corresponding pressure unit!
• °C / °F DP Reading next to this symbol is calculated dew point temperature or error state of value. symbol 3 near the left edge of the display Is on if jumper is closed.

Technical parameters of the device

RS 485 Interface:

• Receiver-Input Resistance: 96 kΩ
• Devices on bus: max. 256 (1/8 Unit Receiver Load)

Measuring parameters:

• Ambient temperature (RTD sensor Pt1000/3850ppm):
• Measuring range: -30 to +80 °C
• Resolution of display: 0.1 °C
• Accuracy: ± 0.4 °C

Atmospheric pressure (T5410 only):

Unit| hPa, mBar| PSI| mmHg| inHg| inH 2 O| oz/in 2| kPa
---|---|---|---|---|---|---|---
Range| 600| 8.70| 450.0| 17.72| 240.9| 139.2| 60.00
1100| 15.95| 825.1| 32.48| 441.6| 255.3| 110.00
accuracy|
T=23 °C| ±1.3| ±0.02| ±1.0| ±0.04| ±0.5| ±0.3| ±0.13
0≤T≤40°C| ±1.5| ±0.02| ±1.1| ±0.04| ±0.6| ±0.3| ±0.15
Else| ±2.0| ±0.03| ±1.5| ±0.06| ±0.8| ±0.5| ±0.20

Response time (air flow approximately 1 m/s): temperature t90 < 4 min (temperature step 20 °C) atmospheric pressure : t90 <44s

• Recommended calibration interval: T0310, T0410 2 years T5410 1 year

• Measuring interval and LCD display refresh: 0.5 s, atmospheric pressure 2 s

• Power: 9 to 30 V dc
  There is possible to change response time. For more details see file “Description of calibration and adjustment procedure.pdf”, which is installed together with Users software.

• Consumption: T0310 (RS232) 6 mA T0410, T5410 (RS485) max. 0.5W

• Protection: T0310(L), T0410(L) IP65 T5410(L) IP54

Operating conditions

Operating temperature range: -30 to +80 °C, over +70 °C switch LCD display off Operating relative humidity range: 0 to 100 %RH Outer influence in accordance with Czech National Standard 33-2000-3: normal environment with those specifications: AE1, AN1, AR1, BE1 Working position: with sensor cover downwards Electromagnetic compatibility: complies EN 61326-1

Not allowed manipulation It is not allowed to operate the device under conditions other than specified in technical parameters. Devices are not designed for locations with chemically aggressive environment. Temperature sensor must not be exposed to direct contact with water or other liquids. It is not allowed to remove the sensor cover to avoid any mechanical damage of the sensors.

Do not use the device in an explosive environment.

• Storing conditions: temperature -30 to +80 °C, humidity 0 to 100 %RH without condensation
• Dimensions: see dimensional drawings
• Weight: approximately T0310(L) 220 g, T0410(L) 140 g, T5410(L) 140 g
• Material of the case: ASA

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.

Appendix A Connection of transmitters with RS485 output to the PC

The ELO E214 converter is an optional accessory for connection of transmitter with RS485 interface to the PC via USB port. Link RS485 is connected across pin 9 A(+) and pin 8 B(-). The pull up, pull down and termination resistors are part of the transmitter. These internal resistors can be connected to the bus by connecting the corresponding pins of CANON connector (for more information see the operation manual for ELO E214).

The ELO E06D converter is an optional accessory for connection of transmitter with RS485 interface to the PC via serial port RS232. Connector marked RS232 connect directly to the PC. Power voltage +6V DC from an external acdc adapter connect to pin 9 of connector marked RS485, 0V connect to pin 5 and link RS485 connect across pin 3 A(+) and pin 4 B(-). Time out setting is performed by connecting the corresponding pins of the connector marked RS485 (for more information see the operation manual for ELO E06D).

Appendix B

Documents / Resources

| COMET T0310 Programmable Transmitter Of Temperature [pdf] User Manual
T0310 Programmable Transmitter Of Temperature, T0310, Programmable Transmitter Of Temperature, Transmitter Of Temperature, Temperature
---|---

References

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

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>