Intrinsically Safe Oxygen Transmitter

Intrinsically Safe Oxygen Transmitter – Overview

The Minox-i is a hazardous area-approved, 2-wire, loop-powered oxygen transmitter with a 4…20 mA output. It is designed with proven sensor technology to accurately measure O2 in a variety of gases, in the most demanding applications and hazardous environments. It has a small footprint and offers a variety of process connections for oxygen measurement. With an industry
standard electrical plug, this compact transmitter can be installed in any OEM application simply and cost-effectively

Intrinsically Safe Oxygen Transmitter – Features

Measurement ranges from 0…10 ppmV up to 0…25 %
For in-line and extractive gas applications
Global hazardous area certifications
2-wire, loop-powered, 4…20 mA output for easy integration
Combined sensor and electronics
Electrochemical and solid-state sensor technology
Suitable for many applications
24VDC power supply
M12 Electrical Connection
KF40, Flow-through or 2” Tri-clamp

Description

Intrinsically Safe Oxygen Transmitter | Minoxi-i

Technical Specifications

Sensor

Solid-state

Electrochemical

(%)

(ppm)

(CO2 gases, ppm)

Model

OC-92

OC-90

OC-60

OC-69

Measuring Range

0…25 %

0…10, 0…100, 0…1000 ppmV

Accuracy

Please see Accuracy Table below

Output Resolution (4…20 mA)

0.01 %

1 ppm V

Lower Detection Limit (LDL)

0.05 %

1 ppm V

Sample Flow Rate (application dependent)

Flow-through / extractive: 100…500 ml/min (250 ml/min optimal) in a vented atmosphere

Direct insertion: Up to 6 m/s

Pressure Range

900…1100 mBarabs

Response Time (T90)

< 15 seconds @ 25 °C (77 °F) within selected range

Operating Temperature Range

-20 °C…+50 °C

5°C…45°C

5 °C…+45 °C

-10 °C…+45 °C

Life Expectancy (application dependent)

Up to 2 years

Up to 18 months

Up to 12 months

Humidity

0…95 %rh non-condensing (with normal use)

Shelf Life

Up to 12 months

Up to 6 months

Up to 3 months

Calibration Interval (application dependent)

6 months

3…6 months

Transmitter

Electrical

Output Signal

4…20 mA loop-powered

Electrical Interface

Industry standard M12

Power Supply

24 V DC +/- 10 % (a suitable I.S barrier is required)

Mechanical

Ingress Protection

IP66 (NEMA4)

Housing Material

316 Stainless steel

Process Connection

Flow-through (1/8” NPT), KF40 flange, Tri-clamp

Gas-wetted Materials

316 Stainless steel

O-ring Material

Nitrile

Weight

800 g

Hazardous Area Certification

IECEx Classification: Ex ia IIC T4 Ga (-20°C ≤ Ta ≤ +55°C)

ATEX Classification: Ex ia IIC T4 Ga (-20°C ≤ Ta ≤ +55°C), Ex ia IIIC T200135°C Da (-20°C ≤ Ta ≤+55°C)

cQPSus Certification: Class 1 Zone 0 AEx ia IIC T4 Ga, Class 1 Zone 20 AEx ia IIC T135°C Da

UKEX, and JPN Ex Classification: Ex ia IIC T4 Ga (-20°C ≤ Ta ≤ +55°C), Ex ia IIC T 200135°C Da (-20°C ≤ Ta ≤+55°C)

Accuracy Table

Accuracy at standard temperature and pressure (STP)

Range

10 ppm

± 0.5 ppm

100 ppm

±1 ppm

1000 ppm

± 3ppm @ 100 ppm

± 1ppm @ 10 ppm

25 %

±0.03 % @ 1 %

Intrinsically Safe Oxygen Transmitter | Minoxi-i

Intrinsically Safe Oxygen Transmitter | Minoxi-i

Intrinsically Safe Oxygen Transmitter | Minoxi-i