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RH926KH 373

The Foxboro RH926KH 373 is an industrial-grade circular chart recorder designed for continuous process monitoring and documentation in demanding environments. This electromechanical recorder provides reliable analog trend recording with robust mechanical construction.

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Key Features
1. Recording System
12" (305mm) diameter circular charts

Mechanical clock drive (spring-wound or electric)

Standard 24-hour rotation (adjustable to 12/48/72h)

±0.5% full-scale accuracy

2. Input Configuration
Single-pen or dual-pen versions

Input types:

Voltage: 0-10V, ±10V

Current: 4-20mA

Potentiometric: RTD/TC (model dependent)

3. Mechanical Design
Cast aluminum case with hinged window

NEMA 4X/IP65 front panel rating

Ambient temperature: -20°C to +55°C

4. Chart Options
Paper charts:

100-division radial scale

Oil/water-resistant material

Ink recording (replaceable cartridge)

5. Model Variant (373)
Special scale range (consult factory)

Explosion-proof option (Class 1 Div 1)

Typical Applications
Boiler pressure/temperature logging

Steam plant monitoring

Legacy process documentation

Regulatory compliance recording