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Summary of Contents for Atal TR485-103D-150
- Page 1 TRANSMITTER TR485-103D-150, TR485- 103D-700 Programmable transmitter of temperature, relative humidity and other derived humidity values with RS485 serial output Instruction Manual...
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Page 2: Transmitter Setting From The Manufacturer
Instruction Manual for use of temperature and relative humidity transmitter TR485-103D-150, TR485-103D-700 Transmitter is designed for measurement of air temperature at °C or °F and relative humidity of air without aggressive ingredients with computing one of the following values: dew point temperature, absolute humidity, specific humidity, mixing ratio and specific enthalpy. - Page 3 It is recommended to use shielded twisted copper cable (e.g. SYKFY ). Outside diameter of the cable must be from 3 to 6.5 mm, 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.
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Page 4: Description Of Communication Protocols
Typical application wiring, connection of terminals Info mode If in doubt of setting of installed transmitter, verification of its address is enabled even without using computer. Power should be connected. Unscrew transmitter cover and shortly press button next to connection terminals (jumper should be opened). - Page 5 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 Jumper and button are located next to connection terminals.
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Page 6: Error States Of The Device
115200Bd, parameters of communication link are 1 start bit + eight bit data word (LSB first) + 1 stop bit, without parity. Jumper Jumper is located next to connection terminals. If communication protocol compatible with standard Advantech-ADAM is selected, its function is the following: •... -
Page 7: Readings On Lcd Display
Error 1 Measured (calculated) value 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. This state appears in case of: • Measured temperature is higher than approximately 600°C (i.e. high non-measurable resistance of temperature sensor, probably opened circuit). -
Page 8: Technical Parameters Of The Instrument
Technical parameters of the instrument: 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 +125 °C Resolution of display: 0.1 °C Accuracy: ±... - Page 9 The value computed from ambient temperature and relative humidity: Display resolution: 0,1 °C You can choice one of the next value:. Dew point temperature Accuracy: ±1,5 °C at ambient temperature T < 25°C and RH >30% Range: -60 to +80 °C Absolute humidity Accuracy: ±3g/m...
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Page 10: End Of Operation
Storing conditions: temperature -30 to +80 °C, humidity 0 to 100 %RH without condensation Dimensions: case with electronics 89x73x37 mm, length of stem 150mm (TR485-103D- 150)/700mm (TR485-103D-700) Weight: TR485-103D-150 approximately 250 g, TR485-103D-700 approximately 600 g Material of the case: ABS, stem from stainless steel Optional accessory... - Page 11 Appendix A Connection of ELO E06D converter (RS232/RS485) (optionally accessory of the transmitter TR485-103D-700) The ELO E06D converter is an optional accessory for connection of transmitter/transmitters with RS485 interface to the PC via serial port RS232. Connect connector marked RS232 directly to the PC, connect power to connector marked RS485.
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