Electrochemical oxygen sensor Microx

zirconiaRS-232analog

Microx Oxygen Analyzer
Compact oxygen analyzer with zirconia and electrochemical sensor options
The Microx is a compact oxygen analyzer available with zirconia (ZR) or electrochemical sensor options. It uses a remote sensor head for near-process or in-process installation and supports multiple measurement ranges from ppm to percent levels. The instrument includes three configurable alarm relays and an LCD for real-time O2 concentration readout.

Applications

• Gas generation (oxygen and nitrogen)
• Glove boxes and containment systems
• Additive manufacturing
• Inert gas blanketing/coating processes
• Semiconductor processing
• Industrial gas testing and analysis

Key features

• Zirconia (ZR) and electrochemical sensor options
• Three configurable alarm relays (dry contact, 5 A)
• LCD display with O2 concentration
• 4…20 mA analogue output (resolution 1 ppmV / 0.01 %)
• RS232 digital communications
• Remote sensor design for near- or in-process installation
• Measurement ranges from ppmV to percent levels
• Fast response and long sensor life for zirconia option

Sensor technical data (Zirconia option)
Measurement ranges: 0…1,000 ppmV; 0…25 %; 0…96 %
Output resolution (4…20 mA): 1 ppmV / 0.01 %
Lower detection limit: 1 ppmV (ppm ranges) / 0.01 % (% ranges)
Sample flow (extractive): 100–500 ml/min (250 ml/min optimal); direct insertion: up to 6 m/s
Pressure range: 900…1100 mBar (abs)
Response time (T90): <15 s @ 25 °C (within selected range)
Operating temperature: -25 °C…+60 °C
Humidity: 0–95 % RH non-condensing
Expected sensor life: up to 5 years (application dependent)
Calibration interval: 12 months (application dependent)

Analyzer / Electrical data
Display: LCD
Output signal: 4…20 mA
Digital communications: RS232
Relay outputs: Three configurable relays, dry contact (5 A)
Electrical interface: 12-way terminal block
Power supply: 85–230 V AC (50–60 Hz) or 24 V DC
Max. power consumption: 6 W
Ingress protection (mounting dependent): DIN rail IP20 / Panel IP40 / Wall IP65
Housing material: ABS
Mounting: DIN rail (M36), panel, wall

Technical specifications

• Model / family: Microx
• Product number (SKU): SW10154
• Brand: Ntron
• Weight: 1 kg
• Measurement ranges: 1 ppmV — 1000 ppmV; 0…25 %; 0…96 %
• Output resolution: 1 ppmV / 0.01 % (4…20 mA)
• Lower detection limit: 1 ppmV / 0.01 %
• Recommended sample flow (extractive): 100–500 ml/min (250 ml/min optimal)
• Response time (T90): <15 s @ 25 °C
• Power supply: 85–230 V AC or 24 V DC
• Relay outputs: 3 configurable relays (dry contact, 5 A)
• Communications: RS232
• Ingress protection: IP20 / IP40 / IP65 (mounting dependent)
• Housing: ABS
• Mounting options: DIN rail, panel, wall
• Calibration interval: 12 months (application dependent)