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CEMA CHT3 SERIES
3-wire Temperature & Humidity Transmitter for Indoor/ Duct/ Remote Type
● With compact design and reasonable price, easy to install, high C/P ratio

● Foreign-made sensor with high accuracy and long-term stability



 
INPUT
Input.................................... capacitive humidity sensor & PT 100 Ω
Measuring range.....................................temperature: upon request
............................................................................. humidity: 0~100%
Working range ................temperature: -40~60°C ; humidity: 0~95%
OUTPUT
Output .....................................................................4~20mA ; 3-wire
Connection of signal ...................................................... 3-wire loop
Display type ......LCD Module with back light, double line character
Display range .............................. upon request, one decimal place
Height of character ............................................................ 5.56mm
ACCURACY (at 25°C)
Temperature ............................................ ±0.3°C+0.002°C x tactual
Humidity...............................................................................±2% RH
Load resistance ........................... 4~20mA ≤ 500Ω / 0~10V ≥ 10KΩ
Output calibration (ZERO & SPAN) adjustment range .....................
.......................................................10% of zero-point and full-range
Response time t90 (at 25°C) ...................................................< 20S
ENVIRONMENT
Media measured ...........................................................................air
Working temperature ............. housing: 0~50°C ; probe: -40~60°C
Working humidity .............................................. 0~95 % (non-cond.)
Storage temperature......................................................-25 ~ +60°C
ELECTRICAL REGULATION
Power supply ............................................................. 24VDC ± 15%
Electrical connection....................................................4P connector
Installation ............ indoor / duct-mounting / remote type with fl ange
Protection degree ............................................IP 65 (Sensor: IP 20)
Electrical protection ..............................................polarity protection
Certifi cation..................................................................................CE
Housing .............................................................. PC fi re-proof class
Probe .................................................................. PC fi re-proof class
cable (CTH3 21) ........................................................................P...VC
Option .............water-proof shield for outdoor use / metal connector
Weight ............... CTH3 19 119g / CTH3 20: 164g / CTH3 21: 221g
File
Name Size Time Download
CEMA CTH3 SERIES 366KB 2012/9/28 PM 02:49:42 Download

 
 
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