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美國 EdgeTech DewTrak II冷鏡變送器
Optical Chill Mirror Hygrometer
The EdgeTech Model DewTrak II dew point / humidity transmitter is
an optical chill mirror hygrometer designed to continuously measure
the moisture content in gases. The instrument is powered by 24Vdc.
The DewTrak II uses the chilled mirror dew point temperature
condensation principle to determine the water vapor concentration in
gas mixtures, and a platinum resistance thermometer to accuray
measure that temperature. Outputs include 4 to 20mA, 0 to 5 Vdc,
or 0-10Vdc and an RS232 serial port as well as electrically isolated
relay contacts.
Configuration Options
Various housings are available for most applications
which include:
? Wall Mount
? Duct Mount
? Pipe Mount
? Remote Type
Fea t ures
? 4 wire PRT measurement for Dew Point
and AT (optional)
? ±0.2°C Accuracy for both Dew Point and Temperature
? Long term stability and repeatability
? RS232, bi-directional, Serial Output
? Electronics housed in IP65 enclosure (Wall Mount)
? Aluminum housing for other configurations
? 2 analog outputs
(4-20mA / 0-5Vdc to 0-10Vdc selectable)
Options
? AT Air Temperature
? RD 2 line LCD display (graphical display)
Three parameter displayed at one time
? AC AC universal supply 85 to 230Vac
? SC1 Flow through sample chamber
? HPO High Pressure (20 bar)
Dew Point / Humidity Transmitter
Wall Mount
With AT probe
Duct Mount
D E W T R A K I I
S P E C I F I C A T I O N
Range: Dew Point (Standard) -40°C to 60°C (-40°F to 140°F)
Air Temperature (Optional) -40°C to 60°C (-40°F to 140°F)
RH (Optional) 1% to 95%
Accuracy: ± 0.2°C for both Dew Point and Temperature
Hysteresis: Negligible
Repeatability: ±0.05°C
Response: 1°C/sec not including settling time
Flow Rate: Static to 3,000 linear ft/min
Pressure: 100 psig maximum (higher pressure available on special order)
Analog Outputs: 2 analog ouputs (4-20mA / 0-5 Vdc to 0-10Vdc selectable)
Load: 4 to 20mA: 0 to 250 ohms
0 to 5/10 Vdc: 1 K ohm or higher
Relay Outputs: 2 programmable alarm relays
K1: Clean mirror / Alarm 1
K2: Servolock / Alarm 2
Contact Rating: Normally Open (NO) 3A at 25Vac, 0r 30Vdc
Remote Cable Configuration:
Dew Point: 10 ft. standard, 50 ft. maximum
Air Temperature (Optional): 10 ft. standard, 50 ft. maximum
For Dew Point: 2 stages of cooling (TEC) with a depression of 60°C
Mirror: Standard: Chrome plated
Optional: Gold or Platinum
Power Supply: 24Vdc ± 20%, 1A maximum
Weight: 3 lbs. or 1.4 kg
如果您對本品感興趣請與我公司
北京東方安諾生化科技有限公司
: 轉8011
:徐
:www.annovatech。。com
:cathyxu_8828@yahoo.cn
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