current position:home page>Products>Analysis Instrument>PST>

Humidity and Temperature Probe Calibrator - Michell OptiCal

Updated:2025-03-13

Brand: PST/Michell
Model: OptiCal
Description: The OptiCal is a premium, self-contained calibrator for humidity sensors. It features an integrated chilled-mirror reference which enables the operator to perform calibrations that are traceable to na
Data download

Feedback
WeChat

QQ

Online Service

Product Details

Humidity and Temperature Probe Calibrator - Michell OptiCal Description：

Product Manual Datasheet

Built-in Chilled Mirror Reference Hygrometer

Features

Simple operation and maintenance

Easy calibration of relative humidity sensors

Excellent chamber stability and uniformity

Manual control or optional straightforward automated set point programming

Humidity and temperature-controlled chamber

Generate 10 to 90% RH over +10 to +50°C temperature

Built in precision chilled mirror reference instrument

Transportable to allow on-site calibrations

The OptiCal is a premium, self-contained calibrator for humidity sensors. It features an integrated chilled-mirror reference which enables the operator to perform calibrations that are traceable to national standards.

The calibration chamber accommodates up to 5 probes or sensors of any brand or model. The chamber is insulated, and temperature controlled for maximum stability and minimum temperature gradients.

Specifications

Humidity
Generated Range	10 - 90% RH
Control Element Accuracy	≤ ±1% RH (10-70% RH) ≤ ±1.5% RH (70-90% RH)
Stability	±0.2% RH (20-80% RH)
Temperature
Generated Range	+10 to +50°C (+50 to +122°F)
Accuracy	±0.1°C (±0.18°F)
Accuracy	±0.1°C (±0.18°F)
Chamber
Ramp Rate	+20 to +40°C (+68 to +104°F): 1.5°C / minute (2.7°F / minute) +40 to +20°C (+104 to +68°F): 0.7°C / minute (1.2°F / minute)
Control Element	Removable relative humidity sensor
Reference
Accuracy	Dew Point: ±0.2°C (±0.36°F) Temperature: ±0.1°C (±0.18°F)
Measurement Units	Dew Point: (°C/°F), % RH Temperature: (°C/°F), gm^-3, gkg^-1, water activity (a_W)
Outputs	Analog: 4-20 mA or 0-20 mA over user-settable output Accuracy: ±0.2°C (±3.6°F) Digital: 500 Ω maximum load resistance Alarm: RS232 @ 9600 baud rate Volt free contact, 30 V, 100 mA maximum
General
Probe Ports	Up to 5 - sensor body diameters 5 to 25mm (0.2 to 0.98") accommodated by port adapters
Chamber Volume	2000cm³ (112.1in³)
Chamber Dimensions	105 x 105 x 160mm (4.13 x 4.13 x 6.3") (h x w x d)
Instrument Dimensions	290 x 520 x 420mm (11.4 x 20.5 x 16.5") (h x w x d)
Set-point Resolution	0.1 for humidity and temperature
Displays	2 line Vacuum Fluorescent Display
Supply	85 to 264 V AC, 47/63 Hz, 150 V A
Weight	20kg (44lbs)