OMS 420-HT


High temperature probe
In-Situ real time analysis of Oxygen (O2) and combustibles (COe).

  • OMS420HT model for high temperature
  • with ZrO2 sensor and remote transmitter
  • probe with sample aspiration using an ejector (clean, oil and water free compressed air 6-8bar is required)
  • with automatic back-purge using solenoid valve controlled by transmitter electronics
  • with 10m special cable between probe and transmitter
  • including universal power supply 100…240Vac/24Vdc,
Measuring ranges
COe – Combustibles 0 … 1,000 ppm COe (combustibles gas)
O2 – Oxygen 0.1 … 25 % (user setable analog output range)
Fluegas temperature up to 2,000°F with Inconel steel tube
up to 2,300°F with Kanthal steel tube
up to 3,000°F with Ceramic tube
Dimensions and other data
Data transmission analog 4-20mA, galvanic isolation
digital RS485, galvanic isolation
Transmitter with local microprocessor, display and 4 push-buttons, 2 channel analog output 4-20mA and RS485 Modbus RTU, all galvanic isolated
Flange 4″ ANSI 150lbs, Ø 9.06″ (230 mm), probe tube: Ø 2.36″ (60 mm), max. 157″ (4m) length
DN80 PN16, Ø 8.5″ (216 mm) / probe tube: Ø 2.36″ (60 mm), max. 78″ (2m) length
Mounting flange temperature between +158°F (+70°C) and +300°F (+150°C)
Response time < 10 sec
Power supply 100…240Vac / 100W
Protection class IP65

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