` RH-CAL Portable Relative Humidity Calibrator - Alpha Controls & Instrumentation Inc.

Edgetech Instruments

RH-CAL Portable Relative Humidity Calibrator

Microprocessor based, programmable humidity calibration system to be used in the lab or out in the field

Starting At
$21,025.00 CAD
Normally ships in 1-2 Weeks

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Unlike other comparative systems RH CAL is entirely self-sufficient. It does not need compressed air or a water connection to operate, which allows this system to be truly portable.

RH CAL is a microprocessor based, programmable humidity calibration system that is at home in the metrology lab or out in the field performing on site NIST traceable humidity calibrations. The system offers the highest accuracy available for both relative humidity and ambient temperature.

With RH CAL, temperature and relative humidity are controlled independently; therefore, you are not limited to performing calibrations at the surrounding ambient temperature, which may not be appropriate for your unique calibration protocol. Using Edgetech’s Optical Chilled Mirror (OCM) primary measurement technique for traceability and feedback control, RH CAL is a standalone, portable humidity calibration system.

Contributing to RH CAL’s ease of use are features such as maintenance reducing Automatic Balance Cycle (ABC), an integral ambient temperature probe and D2 chilled mirror sensor which are located in the sample chamber providing not only superior accuracy but the fastest response.

• Edgetech field proven Optical Chilled Mirror (OCM) technology
• Completely self-sufficient and portable humidity calibration system
• Highest accuracy available for both RH and temperature (AT):
         RH Accuracy: ± 0.5%
         RH Range: 5% to 95%
         AT Accuracy: ± 0.2°C
         AT Range: 10°C to 50°C
• Temperature and RH controlled independently
• Automatic correction for mirror contaminants
• Certified measurements against NIST traceable standards
• Standard features, where others charge extra

Measurement Performance:
Temperature and RH Ranges: RH: 5 to 95%
AT: 10 to 50C
Dew/Frost Point: -40 to 60C, D2 sensor
Accuracy: RH: 0.5%
AT: 0.2C
Dew/Frost Point: 0.2C nominal
Dew/Frost Point and Temperature Sensors: 3-wire Platinum Resistance Thermometer(PRT) 100 ohms at 0C, nominal
Depression: 60C (113F), nominal, D2 sensor
Slew Rate: 1.0C (1.8F) / second max., above 0C
Repeatability: 0.05C
Hysteresis: Negligible
Power Requirements: 100 to 240 VAC, 50-60 Hz
150 Watts Maximum
Sample Flow Rate: 1 liter / minute (2.0 SCFH)
Operating Temperature: Control Unit: 0 to +50C (+32 to +122F)
Outputs: Analog (0-5VDC or 4-20mA) and RS232C serial port
Display: Multi-Line Graphical LCD Display
Weight: 15.4kg (34 pounds)
Dimensions: 52.4cm(W) x 43.7cm(D) x 21.7cm(H)
Sensor Materials: Chromium, glass, epoxy, anodized aluminum
Enclosure: Ultra high-impact structural copolymer carrying case

• Educational Institutions
• Government Agencies
• Metrology

Spare desiccant canister filled with DrieRite
Normally ships in 3-4 Weeks
$638.00 CAD
DrieRite 1 or 5 LB jar
Normally ships in 3-4 Weeks
Starting At
$158.00 CAD
Spare seals for probe access ports
Normally ships in 3-4 Weeks
$109.00 CAD
Replacement humidity generator seals, red, seals the SS tube during transportation
Normally ships in 3-4 Weeks
$87.00 CAD
Blank chamber cover, for use with data loggers or other completely immersed
Normally ships in 3-4 Weeks
$326.00 CAD
Wall mount humidity transmitter chamber cover, insulated
Normally ships in 3-4 Weeks
$326.00 CAD
Standard humidity probe - chamber cover insulated
Normally ships in 3-4 Weeks
$724.00 CAD
Edgetech instruments D- probe (chamber cover,insulated)
Normally ships in 3-4 Weeks
$724.00 CAD
Foam lined rugged plastic shipping case
Normally ships in 3-4 Weeks
$1,211.00 CAD