Multi-function Humidity and Temperature Transmitter - CAEL-HT Series

? Remote probe w/M12 connector
? Metal probe reduce electromagnetic interference
? 2-wire 4-20mA with selectable physical quantity
? 0 - 100%RH measurement, temperature range up to +120°C (248°F)
? Probe pressure up to 10 bar
? IP-65 housing
? 1-point user adjustment
? Analog output and RS485

  • Model Number: CAEL-HT Series
  • Data Sheet: Date Sheet File
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  • Multi-function Humidity and Temperature Transmitter
  • Multi-function Humidity and Temperature Transmitter
  • Multi-function Humidity and Temperature Transmitter
  • Multi-function Humidity and Temperature Transmitter
  • Multi-function Humidity and Temperature Transmitter
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Product Specification

CAEL-HT Series Multi-function Humidity and Temperature Transmitter

SERIAL's latest CAEL series Temperature and Humidity transmitter meets the harsh environmental requirements for temperature and humidity measurement. Via temperature and relative humidity values, the output can be calculated dew point temperature, absolute humidity, wet bulb temperature, the specific enthalpy and other parameters of humidity.

CAEL series Temperature and Humidity transmitter supported wall mount type, duct type and remote probe type. Metal probe provides a high temperature, mechanical stress, pressure and withstand harsh environments generated by the fine waterproof housing can avoid environmental contamination and prevent condensation generated.

Parameter values measured through the two analog output channels, the output may be a current or voltage output. You can simply establish a network by RS485 connection to achieve remote monitoring and data logging, measurement data through the storage device for analysis and processing.

LCD monitor would displays three measurement parameters at the same time, or the font is enlarged for single display to provide different visual needs. Touch buttons without having to open the housing can be set a one point adjustment for temperature and humidity, output selection, range setting, adjustment parameters, and do not carry the computer in the environment field will be able to complete the setup work.

CAEL-HT Series Humidity and Temperature Transmitter Features
? Remote probe w/M12 connector
? Metal probe reduce electromagnetic interference
? 2-wire 4-20mA with selectable physical quantity
? 0 - 100%RH measurement, temperature range up to +120°C (248 °F)
? Probe pressure up to 10 bar
? Display and touch buttons for convenient operation
? Excellent quality and stable measurement
? IP-65 housing
? 1-point user adjustment
? Analog output and RS485
? MODBUS RTU protocol with integer and floating type
? Unit support metric or imperial
? Alarm output
? Dip switch setting
? Configure adapter support

CAEL-HT Series Humidity and Temperature Transmitter Applications
? Semiconductor and microelectronics industry
? Pharmaceutical industry, paper industry
? Environmental chambers, drying equipment, spraying equipment
? Agriculture, farms
? Greenhouse, storage room, cooling chamber
? Building Automation
? Environment and ventilation control

CAEL-HT Series Humidity and Temperature Transmitter Technical Data

Humidity
Measurement range 
0 - 100 %RH
Accuracy (including non-linearity, hysteresis, and repeatability)
  CAEL-HTA 
±1.5%RH @ 25℃ (20 - 80%RH)
±2%RH @ 25℃ (0 - 20/80 - 100%RH)
  CAEL-HT
±2%RH @ 25℃ (20 - 80%RH)
±3%RH @ 25℃ (0 - 20/80 - 100%RH)
  CAEL-HTB
±3%RH @ 25℃ (20 - 80%RH)
Temperature coefficient (from 0°C to 80°C)
typ. ±0.02%RH/℃
Humidity Hysteresis
±1%RH 
Recovery time after 150 hours of condensation 
10 second
Long term drift 
< 0.25%RH/year
Response Time (at 63% of signal) from 33 to 75%RH
10 second (at 1m/s air flow)


Temperature
Measurement range
-40 ~ 120 ℃
Accuracy (including non-linearity, hysteresis, and repeatability)
±0.2℃±0.003*T @ 25℃
±0.7℃ (-40 ~ 5℃)
±0.3℃ (5 ~ 60℃)
±0.9℃ (60 ~ 120℃)
Long term drift
< 0.02℃/year


Analog output (two channels)
Current version 
2-wire or 3-wire, 4 - 20 mA
Voltage version
0 - 1 V / 5 V / 10 V
Accuracy of analog outputs at +25°C
±0.1% full scale
Temperature dependence
±0.005%/°C full scale
External loads
current output RL < 500 ohm
voltage output 0 - 1 V output RL > 2k ohm
0 - 5 V and 0 - 10 V outputs RL > 10k ohm


RS485 Modbus RTU
ID
1 - 247
Baud rate
9600/19200/38400/57600/115200
Data format
N81/N82/E81/E82/O81/O82


Psychrometric calculations (option)
(Td) dew point temperature, (A) absolute humidity, (Tf) frost/dew point temperature, (R) mixing ratio,
(S) enthalpy, (Tw) wet bulb temperature, (E) water vapor pressure


Display with touch button (option)
LCD
128 x 64 dots without backlight
Lines
1,2 or 3
Buttons 
capacitive x3


Alarm (option)
Relay type
Electromagnetic x1
Contact
SPDT / 8A / 277 VAC (resistive load)
Dual mode logic
AND/OR
Activate
High-point and Low-point with enable
Setpoint
-9999 to 9999
Hysteresis
0 to 9999
Delay
0 to 3600 second
Latch
on/off


Power supply
2-wire current version
11 - 35 VDC RL<50 ohm
20 - 35 VDC RL<500 ohm
3-wire current version
15 - 35 VDC, 12 - 29 VAC
Voltage version
15 - 35 VDC, 12 - 29 VAC
RS485 version
15 - 35 VDC, 12 - 29 VAC


Power consume (25 °C, V+ 24 VDC)
Current version
max. 40mA
Voltage version
typ. 10mA
Voltage version + alarm
typ. 25mA
RS485 version
typ. 25mA
RS485 version + alarm
typ. 40mA


Mechanics
Cable gland
PG9 with strain relief
Cable bushing
4.5 - 8.2 mm/0.18" - 0.32"
Housing material
PC, POLYCARBONATE
Housing classification 
IP65
Probe pressure 
10bar
Terminal block 
AWG 12 - 24
Cable of remote probe version
2m, shield PVC, 80°C
Connection 
Cable gland w/ terminal block or M12-4 pin


Probe material
Wall mount version
ABS/brass nickel-plated
Duct version
aluminum
Remote probe version
brass nickel-plated/aluminum 


Temperature range
without display
-40 ~ 80°C (-40 ~ 176°F)
with display 
-20 ~ 70°C (-4 ~ 158°F)


Probe temperature range
Duct and remote probe version
-40 ~ 120°C (-40 ~ 248°F)


Electromagnetic compatibility
Complies with EMC standard
EN61326-1, Industrial Environment

CAEL-HT Series Humidity and Temperature Transmitter Ordering Guide 
Model
Installation
Output
Connection
Psychrometric 
calculations
(Option)

Display with 
touch button
(Option)

Alarm
(Option)
CAEL-HTA
CAEL-HT
CAEL-HTB



Wall mount      (110)
Duct                (120)
Remote probe (130)
Remote probe (131)
Remote probe (135)
Remote probe (136)
*2-wire 4 - 20mA (2)
3-wire 4 - 20mA  (7)
0 - 10V               (3)
0 - 5V                 (5)
0 - 1V                 (6)
RS485                (4)
Cable gland    (A) 
M12-4 pin       (B)
(with 2m cable)



Yes          (M) 





Yes        (D)





Yes    (R)





*2-wire 4…20mA version without Alarm option 

Ordering example
CAEL-HT-120-7AMDR
Humidity accuracy: ±2%RH (20 - 80%RH)
Installation: Duct version
Output: 3-wire 4 - 20 mA
Connection: Cable gland with terminal block
Psychrometric calculations: Yes
Display with touch button: Yes
Alarm: Yes 

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