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CHILLED MIRROR
SENSOR SELECTION
EdgeTech’s family of chilled mirror
(optical dew point) sensors use a fundamental
principle when measuring a dew point and have
excellent accuracy, stability and repeatability
characteristics. They are NIST traceable and each
system can perform an Automatic Balance Control
(ABC) function which nulls the contaminants
without effecting the continuous operation.
EdgeTech sensors are known as the preferred dew
point transfer standard in calibration labs.
S Series Chilled Mirror Dew Point Sensors
S-Type Depression @25°C (77°F)
S1 Single-Stage Thermo Electric Cooler (TEC), ow through sensor 45°C (81°F)
S1P High pressure (900PSIA) single stage (TEC), ow through sensor 45°C (81°F)
S2 Two-Stage (TEC), ow through sensor 65°C (117°F)
S2P High Pressure (900PSIA) two stage (TEC), ow through sensor 65°C (117°F)
S2SC Two-Stage (TEC), self cooling (fans), ow through sensor 65°C (117°F)
S3 Three-Stage (TEC), ow through sensor 95°C (171°F)
Model type S1 S2 S2SC S3 DS1 DS2
Com.Air CA-C1 X X X X
DEWMASTER DM-C1 X X X X X X
DPM-99 DPM-99 X X X X
DPS DPS X X
VIGILANT V-C1 X X X X X X
1500-DC 1500-C1 X X X X X
1500-AC 1500-C2 X X X X X X
Model type A1 A3
137 AIRCRAFT 137-C1 X X
Model type D1 D2
DEWTRAK 200-C1 X X
200M DEWTRAK 200M-C1 X X
S Series Sensor
Standard Chassis Mount
(Remote Mount Optional)
D Series Chilled Mirror Dew Point Sensors
DS-Type Depression @25°C (77°F)
DS1 Single-Stage (TEC), Insertion probe sensor includes a 10ft cable 45°C (81°F)
DS2 Two-Stage (TEC), Insertion probe sensor includes a 10ft cable 60°C (108°F)
D1 single stage probe sensor - 45degc depression 45°C (81°F)
D2 two stage probe sensor – 60degc depression 60°C (108°F)
D Series Sensor
Probe style
Specications for S, D and A Series Sensors
Dew Point/Frost Point Accuracy ±0.2°C (0.36°F) Standard, ±0.15°C (0.27°F) Optional
Sensitivity >0.03°C (0.05°F)
Sample Flow 0.5 to 5.0 SCFH (0.25 to 2.5L/min)
Pressure Rating Vacuum to 300 PSIA for S Series sensor, Vacuum to 50 PSIA for D Series sensor (using pressure tting) (900 PSIA optional for
Cooling Stages Single-Stage (S1, D1, S1P & A1), Two-Stage (S2, D2, S2SC & S2P), Three-Stage (S3 & A3), of thermoelectric cooling
Dew Point Measurement Range -75°C to 100°C (-103 to 212°F)
Mirror Material Chrome plated
Operating Temperature -25° to 105°C (-13 to 221°F)
Repeatability ± 0.05°C (0.9°F)
Functionality Requires EdgeTech monitor to function
S1 & S2 sensor)
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