S4000 TRS

Precision Dew-Point Hygrometer
A precision laboratory dew-point hygrometer with the ultimate accuracy, reliability and long-term performance for humidity measurement and calibration.

Product Features

  • 0.1°Cdp accuracy (0.18°Fdp)
  • Measurement range: -100 to +20°Cdp (-148 to +68°Fdp)
  • Precision 100 Ω 4-wire platinum resistance thermometer
  • Dual optics detection system
  • Available with VCR couplings for optimum trace moisture sampling
  • Dual multi-function LED display with unit indicator
S4000 TRS

Technical Specification

Measurement TechnologyChilled Mirror
Measurement Range-100 to +20°Cdp (-148 to +68°Fdp)
Measurement Accuracy±0.1°Cdp (±0.18°Fdp)
±0.1°C temperature (±0.18°F)
Measurement Units°Cdp; °Fdp; °C, °F temperature; % RH, ppmV, ppmW, g/m3, g/kg, ppmW for SF6
Response Speed0.5°C/sec (0.9°F/sec) + settling time (dew-point dependent)
Sensitivity0.01°C (0.02°F)
RepeatabilityBetter than 0.1°C (0.18°F)
Resolution0.01 (0.1 for % RH)
Dew-Point Sensor
MirrorGold plated copper
Temperature Measurement4-wire Pt100 1/10 DIN class B
Sample Flow Rate0.1 to 0.7 l/min (recommended)
(0.21 to 1.48 scfh)
Integrated Flowmeter0 to 1 l/min (0 to 2.12 scfh)
Sensor PressureAtmospheric
Auxillary CoolingInternal refrigeration
Remote PRT
Temperature Measurement4-wire Pt100 1/10 DIN class B
Resolution0.01°C (0.02°F)
Dual Optics detectionWide band red LED with dual photo sensors, all system insulated


2 channels
10 mV/°Cdp, 4-20 mA
data hold, ABC status, optics alarm
Auxillary input
pressure transducer
4-20 mA input for automatic compensation 0-0.34 MPa (0-50 psia) (optional)
Operating Temperature0 to +40°C (+32 to +104°F)

560W x 600D x 860H mm - Mini Rack (22.05 x 23.62 x 33.86 inches)

85.0kg (187.39 lbs)
Power Supply

90 to 265 V AC; 50/60 Hz
100-115 or 220-240 V AC, 50-60 Hz

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