Teracom TSH330 Manuel utilisateur
TSH330_R1.2 – May 2022 Page 1
www.teracomsystems.com
TSH330
IP54 Modbus RTU temperature and humidity sensor
Version 1.2 / May 2022
USER MANUAL
Page 2 TSH330_R1.2 – May 2022
1. Short descripon
TSH330 is an IP54 temperature and humidity sensor with an RS-485 interface. It supports the
Modbus RTU protocol.
The temperature and humidity sensor integrates basic elements plus signal processing and
provides a fully calibrated digital output. A unique capacive element is used for measuring relave
humidity while the temperature is measured by a bandgap element. Both elements are seamlessly
coupled to a 12-bit analog to digital converter. This results in superior signal quality.
The digital sensor is mounted in an IP65-rated enclosure. This provides protecon against
dust and water sprays. A cable gland with locknut and screwless terminal block allows easy cable
installaon.
2. Features
• RS-485 interface carrying up to 32 nods;
• LED indicator for status of communication;
• Changeable bitrate and other communication parameters;
• Firmware update via the interface.
3. Applicaons
• Server room and data centers humidity and temperature logging.
• Environmental quality monitoring and assessment.
• Humidity and temperature monitoring in building management systems.
• Humidity and temperature logging for mobile operator facilities, vineyards,
greenhouses, etc.
4. Specicaons
• Physical characteristics
Dimensions: 65.6 x 99 x 36 mm
Weight: 70 g
• Environmental limits
Operating temperature range: -20 to 60°C
Operating relative humidity range: 5 to 95% (non-condensing)
Recommended operating range is 20% to 80% RH (non-condensing) over –10 °C to 60 °C.
Prolonged operation beyond these ranges may result in a shift of sensor reading, with slow recovery time.
It is possible that in some weather condions the moisture in the air in the lter cap may condense. This may result in a
shi of sensor reading, with slow recovery me.
Storage temperature range: -20 to 60°C
Storage relative humidity range: 5 to 95% (non-condensing)
Ingress protection: IP54
• Power requirements
Input Voltage (including -15/+20% according to IEC 62368-1): 4.5 to 26 VDC
Input Current: 5 mA@5VDC
• Humidity measurements
Accuracy (min): ±3.0 %RH (in 20 to 80 %RH range)
Accuracy (max): ±5.0 %RH (in 5 to 95 %RH range)
Resolution: 0.1 %RH
• Temperature measurements
Accuracy (min): ±0.4 °C (in -10 to +60°C range)
Accuracy (max): ±0.6 °C (in -20 to +60°C range)
Resolution: 0.1 °C
• Warranty
Warranty period: 3 years
TSH330_R1.2 – May 2022 Page 3
5. Pinout
Pin Descripon Corresponding
UTP wires color
Line B- RS485 Blue
Line A+ RS485 Blue/White Tracer
GND Ground (negave) supply Brown
+4.5÷26V Posive power supply Brown/White Tracer
6. Installaon
The device is designed for wall mounng using screws passing through the sloed holes in
the enclosure.
A daisy-chained (linear) topology for mulple sensors should be used. UTP/FTP cables are
mandatory for interconnecon. The last sensor in the chain should have a terminator of 120ohm
installed on the bus. TSH330 has a built-in terminator. To enable it, please close the jumper.
7. Installaon ps
The locaon and the mounng posion of sensors have a direct eect on the accuracy
of measurements. The ps below will ensure good measuring results:
• Sensor shall be installed about 1.2-1.4 m above the floor;
• Avoid exposure to direct sunlight - solar radiation causes measurement inaccuracy;
• For outdoor usage, the sensors should be installed with protection from direct rain;
• Avoid mounting over ventilation shafts and windows/doors;
• Avoid attaching to walls in front of a chimney.
• It is recommended to mount the device in an accessible location for easier
maintenance.
Aenon:
The device should be installed with always lter and gland facing the oor.
8. Status indicator
The status of the device is shown by a single LED, located on the front panel:
• If the LED blinks for a period of 1 second, the sensor works properly;
• If the LED blinks for a period of 3 seconds, there isn‘t communication with the
controller;
• If LED doesn‘t blink, there isn‘t a power supply.
Page 4 TSH330_R1.2 – May 2022
9. Factory default sengs
Disconnect the sensor from the bus (switch o the power supply).
Press and hold the “cong” buon. Don’t release the buon, connecng the sensor to the bus
(switch on the power supply).
The “status” LED will be ON for 3 seconds and aer this will ash for 7 seconds. Aer the 10-th
second the LED will be ON.
Release the buon. The sensor will restart with factory default sengs.
10. Firmware update
The rmware of the sensor can be updated with a Teracom controller which supports
MODBUS RTU or MBRTU-Cong soware. For more details ask your dealer.
11. Modbus address table
Register name R/W FC
PDU
Address
(Decimal)
Logical
address
(Decimal)
Oset
(Decimal) Data size Default Valid values
RS-485 address R/W 03/06 10 40011 40001 16-bit uns. integer 1 1-247
Baud rate * R/W 03/06 11 40012 40001 16-bit uns. integer 19200 2400, 4800, 9600, 19200,
38400, 57600
Parity, data, stop bits * R/W 03/06 12 40013 40001 16-bit uns. integer 1 1=E81, 2=O81, 3=N81
Data order R/W 03/06 13 40014 40001 16-bit uns. integer 1 1=MSWF (MSW, LSW)
2=LSWF (LSW, MSW)
Sub-family number R 3 14 40015 40001 16-bit uns. integer 0xCD
FW version R 3 15 40016 40001 16-bit uns. integer
Vendor URL R 3 18 40019 40001 64 bytes UTF-8 teracomsystems.com
Float test value (MSWF) R 3 82 40083 40001 32-bit oat -9.9(0xC11E6666)
Float test value (LSWF) R 3 84 40085 40001 32-bit oat -9.9(0xC11E6666)
Signed integer test value R 3 86 40087 40001 16-bit sig. integer -999(0xFC19)
Signed integer test value (MSWF) R 3 87 40088 40001 32-bit sig. integer -99999(0xFFFE7961)
Signed integer test value (LSWF) R 3 89 40090 40001 32-bit sig. integer -99999(0xFFFE7961)
Unsigned integer test value R 3 91 40092 40001 16-bit uns. integer 999(0x03E7)
Unsigned integer test value (MSWF) R 3 92 40093 40001 32-bit uns. integer 99999(0x0001869F)
Unsigned integer test value (LSWF) R 3 94 40095 40001 32-bit uns. integer 99999(0x0001869F)
Temperature °C R 3 100 40101 40001 32-bit oat
Humidity %RH R 3 102 40103 40001 32-bit oat
Dew point °C R 3 104 40105 40001 32-bit oat
Temperature °F R 3 200 40201 40001 32-bit oat
Humidity %RH R 3 202 40203 40001 32-bit oat
Dew point °F R 3 204 40205 40001 32-bit oat
Temperature °C x 100 R 3 400 40401 40001 16-bit sig. integer
Humidity %RH x 100 R 3 401 40402 40001 16-bit sig. integer
Dew point °C x 100 R 3 402 40403 40001 16-bit sig. integer
Temperature °F x 100 R 3 500 40501 40001 16-bit sig. integer
Humidity %RH x 100 R 3 501 40502 40001 16-bit sig. integer
Dew point °F x 100 R 3 502 40503 40001 16-bit sig. integer
MSWF - Most signicant word rst - (bits 31 … 16), (bits 15 … 0); LSWF - Least signicant word rst - (bits 15 … 0), (bits 31 … 16);
PDU address - Actual address bytes used in a Modbus Protocol Data unit
A “NaN” value is returned for unavailable oang-point values (e.g. in case of measurement error)
* The sengs will take eect aer restarng the sensor by a power-on reset.
12. Recycling
Recycle all applicable material.
Do not dispose of in the regular household refuse.
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