The Omega CTXL-TRH-G is a dual-channel circular chart recorder engineered for continuous environmental monitoring of temperature and relative humidity. It combines analog chart recording with digital display and alarm functions, making it suitable for laboratories, clean rooms, storage facilities, museums, and industrial applications requiring reliable long-term data documentation.
Technical Specifications
Temperature Measurement
• Range: −17.7 °C to 49 °C (0 °F to 120 °F)
• Display Accuracy: ±1 °C (±2 °F)
• Chart Accuracy: ±1.5 °C (±3 °F)
• Resolution: 0.1 °C or °F
Relative Humidity Measurement
• Range: 0% to 98% RH
• Display Accuracy: ±3% RH (15% to 90% RH typical)
• Chart Accuracy: ±4% RH (15% to 90% RH typical)
• Resolution: 1% RH
Recording System
• Chart Size: 8-inch (200 mm) circular
• Recording Periods: 1, 7, or 32 days configurable
• Data Storage: Non-volatile memory for charted data
• Interface: RS232 serial communication for data download
Display and Control
• LCD Readout: Backlit dual-channel display with real-time readings, minimum, maximum, and average values
• Keypad: Membrane keypad with lockout feature for setting protection
Alarms and Outputs
• High/Low Alarms: Audible buzzer and visual LED indicators
• Relay Outputs: Dual SPDT relays for high alarms
• Voltage Outputs: Dual outputs for low alarm control
• Temperature Setpoint Resolution: 0.5 °C or °F with 0.5 °C/°F deadband
• Humidity Setpoint Resolution: 1% RH with 3% RH deadband
Physical
• Enclosure: ABS plastic, rugged construction
• Mounting: Benchtop or wall-mount
• Dimensions: 335 mm H × 271 mm W × 67 mm D (13.2″ × 10.7″ × 2.6″)
• Weight: Approximately 3.2 kg (7 lb) with batteries
• Operating Temperature: −17.7 °C to 49 °C (0 °F to 120 °F)
– Key Features
• Simultaneous two-parameter recording on single 8-inch chart
• Selectable recording intervals for optimal chart resolution
• PC interface software for real-time monitoring and data retrieval
• Dual independent alarm channels with relay and voltage outputs
• Keypad lockout prevents unauthorized parameter modification
– Typical Applications
• Environmental monitoring in controlled storage environments
• Laboratory and clean room climate documentation
• Museum and archive preservation verification
• Industrial process environment tracking
• Historical environmental data recording
– Compatibility & Integration
RS232 serial communication enables data download and real-time display via supplied PC interface software. Chart data scaling and analysis available through software platform.
