Edgetech Instruments DewTrak II 冷镜露点湿度计 (-20°C ~ 65°C; -40°C ~ 60°C)

Sample Measurement Ranges (from 25°C ambient): 

D Sensor Probe:

Dew/Frost Point (Standard): -20°C to 65°C (-4°F to 149°F)

Air Temperature (Optional): -40°C to 70°C (-40°F to 158°F)

Relative Humidity (Optional): 5% to 90% 

DX Sensor Probe:

Dew/Frost Point: -40°C to 60°C (-40°F to 140°F)

Air Temperature (Internal DX AT Sensor): -40°C to 60°C (-40°F to 140°F)

Relative Humidity: 5% to 90% 

Accuracy (in Sample Measurement Range):

Dew/Frost Point: ±0.2°C (±0.5 gr/lb.) standard, ±0.1°C (±0.25 gr/lb.) optional

Temperature: ±0.1°C 

Hysteresis: Negligible 

Repeatability: ±0.05°C dew/frost point (±0.1 gr/lb.) 

Response: 1°C/sec (2.7 gr/lb./sec), not including settling time 

Flow Rate: Static to 3,000 linear ft./min 

Pressure:

D Sensor: 100 psig maximum

DX Sensor: 50 psig maximum 

Outputs:

Analog: 2; 4 to 20 mA, 0 to 5 Vdc, or 0 to 10 Vdc

Serial: 1; RS-232 

Load:

4 to 20 mA: 0 to 250 ohms

0 to 5/10 Vdc: 1 k ohm or higher 

Power Supply: 24 Vdc ±20%, 1 A maximum 

EPA Noise Level: < 0.02 K 

Weight: 3 lb. (1.4 kg) 

Dimensions:

Controller: 5 in. (130 mm) W x 5 in. (130 mm) H x 4 in. (99 mm) D

Dew Point Probe: 9 in. (230 mm) L x 3 in. (80 mm) Dia.

Temperature Probe: 10 in. (250 mm) L x 0.4 in. (10 mm) Dia.

Datasheet

Applications

Air Make-up for Clean Rooms and Data Centers

Automotive

Biologics and Cell Culture

Critical Purged Atmospheres

Dryer Efficiency

Engine Air Intake and Exhaust Testing

Fluidized Bed Driers

Food Storage and Packaging

Glove Box Environments

High Purity Welding

HVAC

Medical Packaging

Pharmaceuticals

Wind Tunnels