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RELATIVE HUMIDITY + TEMPERATURE ON/OFF CONTROLLER----------------------------------------------------------RHX96A

  • Input : RH and T signals from sensor
  • 0/ 1 / 2 / 3 / 4  setpoints corresponding to
    temperature or humidity
  • Accuracy : ±3% RH, ±0.3°C
  • User programmable
  • 85~265 V AC SMPS or 20~35 V DC supply
  • Sensor break indication
  • 2 x isolated retransmission outputs
    corresponding to temperature and / or humidity
Specifications           All specifications at ambient of 25 °C, unless specified otherwise
Inut Basic RH and T signals from
Compatible sensors RSHT20 (General purpose /
wall mount) RSHT30(Wall
Mount) RSHT40(Duct mount)
must be ordered separately
Distance between sensor &
Range limit 0~100% RH
-20~100 °C(32~212 °F)
Also see sensor range and
Fig 1
Accuracy ± 3% RH, ± 0.3 °C
Resolution 0.1 or 1
Display Upper : 4 digit, 7 segment
0.56" (14.2 mm) green LED
Lower : 4 digit, 7 segment
0.56"(14.2 mm) red LED
Status indication LEDs for relay status
LEDs for communication
No. of relays 0/1/2/3/4 electromagnetic
Relay contact type NO-C-NC
Relay contact rating 5A/230V AC, resistive
SSR Drive 12 V DC drive signal for
external SSR
No. of analog output 0 / 1 / 2
Retransmission output Current or voltage
corresponding to RH or T
Current output 4~20 mA / 0~20 mA isolated
from input
Maximum load for current output 600 ohms
voltage output 0~10 V DC isolated from
Load for voltage output >10 Kohms
Mutual isolation between
1KV AC / 1 minute
Port RS485
Protocol Modbus RTU
Slave ID User programmable(1~256)
Setpoint 0~100
Unit °C, °F
Resolution User selectable
0.1, 1
High scale 0~100
Low scale 0~100
Digital filter A(minimum) ~ F(maximum)
Hysteresis(ONOFF control) 0.1~99.9
Bias for RH & T -10 to 10
Relay logic a. Full Scale Hi
b. Full Scale Lo
c. Heat
d. Cool
Setpoint lock ON, OFF
Relay action Reverse / direct
Retransmission output Corresponding or RH or T
Keyboard Tactile, 3 keys
Enclosure construction Plug-in (circuit removable without affecting terminal wiring)
Dimensions(in mm) 96(W) x 96(H) x 100(D)
Mounting Panel mount
Panel cutout 92 x 92mm
Supply voltage a) 85~265 V AC, 50/60 Hz
b) 20~35 V DC (optional)
Power consumption 3 watts maximum
Operating ambient temperature 0~50 °C
Relative humidity Below 90%, non condensing

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