Specifications A-1
January 2006
Performance
Accuracy [complete system at 25°C (77°F)]
Dew/Frost Point: ± 0.2°C (± 0.36°F)
Temperature (optional): ± 0.15°C (± .27°F)
Pressure (optional): ± 0.5% of full scale
Relative Humidity (optional): Governed by accuracy of dew point and temperature sensors
Other Humidity Parameters:
(optional)
Governed by accuracy of dew point, temperature and pressure sensors
Sensitivity > 0.05°C (0.09°F)
Repeatability ± 0.05°C (±0.09°F)
Hysteresis None
Measurement Ranges
Chilled Mirror Sensors:
(available)
1111H, D-2, SIM-12H, 1311DR, 1311XR
Range: –80°C to +85°C (–112°F to +185°F)
dew/frost point, depending on sensor used
Temperature Sensor:
(optional)
T-100E: –100°C to +100°C (–148°F to +212°F)
Pressure Sensors (optional): PT-30A: 0 – 30 psia (0 to 2 bar)
PT-300A: 0 to 300 psia (0 to 21 bar)
User supplied 4-20mA or 0-5 volt signal
Recommended
Sample Flow
0.5 to 5.0 scfh (0.25 to 2.5 L/min)
Response Time
Dew/Frost Point Cooling
Rate:
1.5°C (2.7° F)/sec [typical, above 0°C (32°F)]
Temperature Response:
(optional)
< 7 sec for step change within +25°C to +70°C (+77°F to +158°F)
Pressure Response (optional): 1 sec to 90% of steady state (10% to 90% change)
Update Time 1 sec
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