1. Simultaneous Monitoring: Clean Room Monitor displays temperature, humidity, and differential pressure readings simultaneously on a 7-segment LED display for comprehensive environmental assessment.
2. Remote Sensor Connectivity: Allows connection of remote temperature and humidity sensors with cables up to 10 meters in length, enabling flexible placement for accurate data collection.
3. Independent Alarms: Programmable alarms for temperature, humidity, and differential pressure, ensuring prompt notification of any deviations from preset thresholds.
4. Integrated Buzzer: Audible alarm with acknowledgment feature alerts users to alarm limit violations, enhancing operational awareness.
5. Software Calibration: Clean Room Monitor facilitates precise calibration of sensors for accurate measurements, ensuring data integrity and reliability.
6. Password Protection: Secures programming settings with password protection, preventing unauthorized access and tampering.
7. Modbus RTU Communication: Isolated RS-485 communication protocol allows seamless integration with Modbus RTU networks, enabling remote monitoring and control.
8. Compact Design: Stainless steel front plate and modular wall mounting design with small footprint ensure easy installation and integration into various clean room environments.

Technical Specifications:

1. Input:
– Temperature & Humidity Sensor: Remote sensors with cable length up to 10 meters.
– Differential Pressure Sensor: Integrated sensor with brass hose nozzles for positive and negative pressure connections.
2. Range & Resolution:
– Temperature: -20.0°C to 60.0°C, with a resolution of 0.1°C.
– Humidity: 0% to 100% RH, with a resolution of 0.1%.
– Differential Pressure: Displayed with upper 4-digit 0.4” red LED display.
3. Accuracy:
– Temperature: ±0.5°C.
– Humidity: ±2% RH.
– Differential Pressure: ±1% of full scale.
4. Indication:
– Differential Pressure: Upper 4-digit 0.4” red LED display.
– Temperature: Middle 4-digit 0.4” red LED display.
– Humidity: Lower 4-digit 0.4” red LED display.
– Status Indication: Three LEDs for alarm status, one for each parameter.
– Audio Indication: Integrated buzzer for alarm limit violations.
5. Communication:
– RS-485 Slave: Isolated communication with Modbus RTU Protocol.
– Programmable Settings: Baud rate (9600 bps), parity (O/E/N), data bits (8), stop bits (1/2), and slave ID (1-250).
– Minimum Polling Interval: 500 milliseconds.
6. Programmable Parameters:
– Set Point: Programmable for each parameter.
– Programming: Via three front push buttons with password protection.
– Alarm Logic: High or low, user programmable.
7. Environmental:
– Operating Ambient Temperature: 0 to 50°C.
– Humidity: Below 95% RH, non-condensing.
8. Electrical:
– Supply Voltage: 24VDC ±10%.
– Power Consumption: Less than 1.2 watts at 24VDC.
9. Dimensions:
– Flush Mounting Plate: SS-304.
– Front Plate Size: 90 mm (H) x 110 mm (W).
– Back Enclosure: MS with powder coating.
– Overall Dimensions: 90 mm (H) x 110 mm (W) x 43 mm (D).
– Mounting: Modular wall mounting with stainless steel front.