Our Standard Certifications
CRM-111-2 Integrated/Remote Oxygen Sensor
The CRM-111-2 Remote Oxygen Sensor is a sophisticated monitoring device designed for various applications, including pharmaceutical clean rooms, HVAC systems and animal house clean rooms, etc. This sensor features a 7-segment LED display that provides real-time indication of Oxygen gas levels in percentage volume per volume (% V/V). Users can set two programmable alarms (AL1, AL2) with integrated buzzers for immediate notification upon alarm limit violations. With a user-friendly interface and password-protected programming, the sensor allows for easy customization of parameters, including alarm set points and logic (high or low). It also offers software calibration, indicating when calibration is due or when sensor replacement is required. The isolated RS-485 communication with MODBUS RTU Protocol facilitates seamless integration with PLCs, SCADA systems, and other monitoring platforms.
1. 7 Segments L.E.D. Display:
– CRM-111-2 Remote Oxygen Sensor provides Clear and visible 4-digit seven-segment LED display for accurate Oxygen gas indication in % V/V.
2. User Programmable Alarms (AL1, AL2):
– Two user-settable alarms with the flexibility to define alarm limits based on specific requirements.
3. Integrated Buzzer for Alarm Violation:
– Immediate audio feedback through an integrated buzzer upon violation of alarm limits, with acknowledgment capability.
4. Software Calibration Facility:
– Convenient software-based calibration, ensuring accurate readings and allowing for timely adjustments.
5. Password-Protected Programming:
– Enhanced security with password protection for programming, preventing unauthorized access and alterations.
6. Isolated RS-485 Communication:
– Isolated RS-485 communication with MODBUS RTU Protocol for seamless integration with PLCs, SCADA, and other systems.
7. Built-In Relays:
– Remote Oxygen Sensor provides two built-in relays for configuring programmable alarms, providing additional control and notification options.
8. Optional 4-20mA Output:
– Optional 4-20mA output with a load capacity of 680Ω, offering compatibility with various monitoring and control systems.
Technical Specifications:
1. Sensor Type:
– Integrated/Remote Oxygen Sensor.
2. Measurement Range & Resolution:
– Oxygen (O2): 0 to 25% V/V, with a resolution of 0.01.
3. Accuracy:
– ± 2% of Full Scale.
4. Display:
– 0.4” Red LED display for Oxygen gas indication, accompanied by status LEDs for alarms and communication.
5. Programmable Parameters:
– User-settable set points (AL1, AL2), programmable through three front keys with password protection. Alarm logic is customizable as high or low.
6. Environmental Conditions:
– Operating temperature range: 0 to 50°C.
– Humidity: Below 95% RH, non-condensing.
7. Electrical Specifications:
– Supply Voltage: 18 to 36VDC (Typically 24VDC).
– Power Consumption: Less than 1.2 watts at 24VDC.
8. Output Options:
– Optional 2 SPDT relays or 1 DPDT relay with a rating of ‘2A/24VDC.’
– Optional 4-20mA output with an accuracy of 0.125% FS.
9. Communication:
– RS-485 communication with MODBUS RTU Protocol, programmable settings for baud rate, parity, data bits, stop bits, slave ID, and minimum polling interval.
10. Dimensions:
– Flush mounting plate: SS-304.
– Front plate size: 90mm(H) x 110mm(W).
– Back enclosure: MS with powder-coated finish.
– Overall Dimensions: 90mm(H) x 110mm(W) x 38mm(D).
– Modular wall mounting with a stainless steel front for versatility.
| Clean room application in Pharmaceutical |
| Pharma Environments monitoring applications |
| HVAC (Heating, ventilation, Air conditioning, Cooling) |
| Animal house clean room |