www.sentera.eu
MIW-RSTHX-2-EN-000 - 15 / 02 / 2018
8 - 11
ATTENTION
Do not exceed the maximum power supply rating! Measure before installation!
Unregulated 24 VAC supply units provide higher nominal output voltage and
activate the integrated fuse protection.
ATTENTION
We advise you not to use G and F-type articles together on the same network. If
G and F-type articles are used together on the same network, make sure you use
separate power supplies for both types. Always connect different article types to
separate AC transformers or use the same article version.
CAUTION
Do not expose to direct sunlight!
OPERATING INSTRUCTIONS
Calibration procedure:
Both the relative humidity and temperature sensor elements are factory calibrated.
Recalibration is not necessary.
Bootloader
Thanks to the bootloader functionality, the sensor firmware can be updated via
Modbus RTU communication. To enter ‘Boot mode”, put a jumper onto pins 3 and
4 of the P1 header and restart the power supply (see
Fig. 5
). Once ‘Boot mode’ is
activated, the firmware can be updated via SM Boot application (part of 3SModbus
software suite) or Sensistant.
Fig. 5 P1 header
1 2 3 4 5
Put a jumper onto pins 1 and 2 and wait
for at least 5 seconds to reset the Modbus
communication parameters
1 2 3 4 5
Put a jumper onto pins 3 and 4 and restart
the supply to enter bootloader mode
LED indications
1.
When the green LED is on, the measured value (temperature or relative humidity)
is between the minimum and maximum alert range values (
Fig 6 - 1
).
2.
When the yellow LED is on, the measured value (temperature or relative humidity)
is in the alert range (
Fig 6 - 2
).
3.
When the red LED is on, the measured value (temperature or relative humidity)
is below the minimum measurement range value or above the maximum value.
Blinking red LED indicates loss of communication with a sensor (
Fig 6 - 3
).
Fig. 6 LED indications
3
2
1
RSTHX-2
COMBINED TEMPERATURE AND RELATIVE
HUMIDITY ROOM TRANSMITTER
