Humidity calibrator RH CAL

dew-pointprogrammableportable

Overview
The RH CAL is a microprocessor‑based, programmable portable humidity calibration system for metrology laboratories and on‑site NIST‑traceable calibrations. It uses EdgeTech’s Optical Chilled Mirror (OCM) primary measurement technique and provides independent control of temperature and relative humidity while operating without compressed air or external water connections.

Key features

• EdgeTech field‑proven Optical Chilled Mirror (OCM) technology for primary traceability
• Completely self‑sufficient and portable: no compressed air or water required
• Independent temperature and relative humidity control
• Automatic Balance Cycle (ABC) for reduced maintenance and fast stabilization
• Integral ambient temperature probe and D2 chilled mirror sensor for fast, accurate feedback
• Certified measurements traceable to NIST

Technical overview

• Measured parameters: Moisture %, Temperature °C, Dew point °C
• Method: Dew Point / Optical Chilled Mirror
• RH range: 5% – 95% RH; RH accuracy: ±0.5% RH
• Dewpoint range: −40°C – +50°C TP; Gas temperature range: 10°C – 50°C
• Temperature accuracy: ±0.2°C (ambient) / Dewpoint accuracy: ±0.1°C TP
• Resolution: 0.1°C; Response time T90: 1°C/s; Flow rate: 0.25 – 2.5 l/min

Outputs & physical

• Outputs: 4–20 mA; 0–5 V; RS232 alarm
• Supply voltage: 100–220 V
• Protection class: IP65; Connection: 6 mm
• Display: Graphic display
• Dimensions: 52 × 20 × 43 cm; Weight: 5 kg