HygroCal100 User’s Manual
Michell Instruments
37
APPENDIX A
Appendix A Technical Specifi cations
Chamber
Generation Range 5 to 95% RH
RH Stability ±0.5%
RH Uniformity ±0.5%
Stabilization Time Typically <5 min for full stability from step changes of 10% RH
Control Probe
RH Accuracy ±0.8%
Temperature accuracy ±0.2%
Long Term Stability ±1% per year
Electrical Specifi cation
User Interface 4.3" color LCD with touchscreen
Interface with probes
24V excitation voltage, accepts signals: 0-20 mA, 4-20 mA, 0-1
V, 0-5 V, 0-10V
Measurement Units %RH, temperature in °C, °F
Displayed Resolution 0.1
Data Logging
2Gb internal memory available for log fi les; or 10.6 years storage
at 5 second intervals
Battery (optional) 1500 mAh
Power Supply 24 V DC (100 to 240 V AC, 50/60 Hz adaptor included)
Mechanical Specifi cation
Probe Ports
8 - sensor body diameters 5 to 25mm, accommodated by port
adaptors
Chamber Volume 1050cm
3
approximately
Maximum Probe Insertion Depth 60mm (2.36")
Desiccant Reservoir Capacity 25cm
3
Saturator Reservoir Capacity 25ml
Environmental Conditions +5 to +40°C (+41 to +104°F)
Dimensions 100 x 250 x 300mm (3.94 x 9.84 x 11.81") h x w x d
Weight 3.2kg (7.05lbs)