Rapidox - Model 2100 OEM-SIL2 -High-performance Zirconia Oxygen (O2) analyser

Zirconia oxygen sensors are extremely rugged and particularly suitable for monitoring inert atmospheres and aggressive industrial applications directly within manufacturing processes such as additive manufacturing (3D printers), soldering ovens and furnaces. High temperature (650°C) and vacuum applications are particularly suited to this model. The SIL2 version is particularly suited to applications where there is an additional risk of human suffocation, and the sensor needs to be relied upon to warn correctly of the presence of a suffocating atmosphere. The SIL2 design shrinks the failure window where a dormant fault condition could exist from days or weeks to just a few minutes.

The Rapidox 2100 OEM-SIL2 analyser is supplied in a custom DIN rail enclosure with or without local display and keypad (these are for programming and not in the scope of SIL2). The sensor cable can be made to any length up to 25m and there are a choice of sensor mounting options including aluminium and stainless manifolds as well as vacuum fittings (ISO-KF and CF). It has fully programmable analogue (voltage and current) outputs and alarm relays as well as RS232 / RS485 digital signalling as standard. In addition to the standard Rapidox digital communications protocol and software, Modbus-RTU is included as standard. The analyser is designed specifically for seamless integration to PLC systems.

• SIL2 dual microprocessor designed to meet the requirements of IEC 61598/61511
• Auto-test function set every ten (10) minutes to test alarm relay operation by injecting a false sensor signal without disruption to the attached equipment
• Set of LED status indicators (continuously integrity tested)
• Multiple high-spec electrical alarm relays with built in redundancy
• Type K thermocouple option (out of the scope of SIL2)
• 24Vdc 20W power
• Pre-calibrated sensors for uninterrupted service
• Digital outputs tested for the flow of data without interruption
• Voltage (0-5V) and current (4-20mA) outputs checked for integrity
• Alarm indications such as sounder are continuously monitored for integrity
• Master alarm and Master relay added
• Zirconia sensor supplied with bespoke cable
• Fast and accurate measurement of oxygen
• Fully programmable analogue outputs
• Data logging software

Type                                                          Measurement

O2 Sensor Range                                    10 -20ppm to 30% Zirconia version. 10 -26 ppm extended range available on request

O2 Sensor Accuracy                                ±1% of the actual measured oxygen content OR 0.5ppm (whichever is the greater)

Ambient Operating Temperature         5-35°C 0-95% RH non condensing

Ambient Operating Pressure                800 to 1200mbar absolute

Max Sample Gas Pressure                    Up to 10 bar gauge (200bar burst pressure)

Max Sensor Temperature                     650°C

O2 Sensor Response                              4 seconds for a T90 step change @1L per min flow

Life Expectancy                                       >17,000 hours

Sensor Cable                                           2m high temp as standard. Any length up to 25m available on request

Voltage                                                     24V VDC +/-10%

Voltage Outputs                                     0-5V (0-10V on request) - continuously self-tested under SIL2

Current Outputs                                     4-20mA - continuously self-tested under SIL2

Digital Outputs                                       RS232 / RS485 & Modbus RTU - continuously self-tested under SIL2

Sample Connections                              Nipple or Swagelok

Display                                                      OLED display & keypad on enclosure version (not in the scope of SIL2)

Dimensions                                              70mm x 130mm x 105mm

Weight                                                      <0.5kg in enclosure, OEM board 120g

Power / Warm-up Time                          20W / 1-2 minutes at 20°C

Alarms                                                       2 alarm relay circuits, fully user-configurable - self-tested every 10 minutes under SIL2

Calibration                                                Any 2 or 3 gases - Pre-calibrated Sensors available

UL Compliance                                         All paints, cables, wires, plastic materials etc are UL certified and marked

Enclosure Materials                                 Painted Aluminium

Din Rail Option                                         DIN Rail Mountable enclosure

Functional Safety                                      Meets the requirements of SIL2 under IEC 61508/61511

• Additive Manufacturing
• Metal Powder Processing
• Solder Reflow Oven
• Combustion
• Glove Boxes
• Metal Heat Treatment
• Manufacturing
• Inert Gas Blanketing
• Forming Gas
• Research & Development