按原理分类 >> 校验和湿度发生

OptiCal

Humidity Calibrator

The OptiCal is a bench-top, fully self-contained humidity/ temperature calibrator. The system comprises a humidity and temperature controlled chamber that can house up to five or more humidity sensors, depending on their physical dimensions. The humidity and temperature within the chamber are closed-loop controlled and continuously monitored by a precision chilled mirror reference hygrometer. The OptiCal works by time proportioning the flows of dry and saturated air according to the pre-selected relative humidity value. The chamber temperature is controlled by a four-zone Peltier heat pump arrangement for maximum stability and minimum temperature gradient. The saturator assembly can be filled easily with distilled water reservoir at the front of the unit and the easily accessible desiccator can be re-charged by heating when required. No other maintenance is necessary. The only external service required is a single phase power supply.

亮点

Precision relative humidity and temperature calibrator
Generate 10 to 90% RH over 10 to 50°C temperature
Integral cooled mirror reference hygrometer
Humidity and temperature profile generation for unattended verification of sensors
Transportable calibrator enables on-site calibrations

技术指标

REFERENCE HYGROMETER
Type	Optidew cooled mirror dew-point transmitter
HUMIDITY
Generator Range	10-90% RH
Accuracy Control Element	≤±1% RH (10–70% RH) ≤±1.5% RH (70–90% RH)
Stability	±0.2% RH (20–80% RH)
TEMPERATURE
Generator Range	+10°C to +50°C (lowest T set point = 10ºC below ambient)
Accuracy	±0.1°C
Stability	±0.1°C
CHAMBER
Ramp Rate	+20 to +40°C: 1.5°C/minute +40 to +20°C: 0.7°C/minute
Control Element	Removable relative humidity sensor
GENERAL
Probe Ports	Up to 5 – sensor body diameters 5 – 25mm accomodated by port adapters
Chamber Volume	2000cm³
Chamber Dimensions	105 x 105 x 160mm (w x h x d)
Instrument Dimensions	520 x 290 x 420mm (w x h x d)
Set Point Resolution	0.1 for humidity and temperature
Displays	High definition 2 lines alpha numeric
Measurement Units	ºC, ºCdp, % RH g/kg, g/m³, (t-t_d), a_w
Outputs	Analogue: Two channels 4-20 mA or 0-20 mA Digital: RS232 (RS485 optional) Alarm: Volt free contact, 2A @ 30 V DC
Supply	85–264 V AC, 47–63 Hz, 150 VA
Weight	20kg