Instrument characteristics

◆ LCD display, intuitive display, simple and convenient operation;

◆ The original imported fuel cell sensor is adopted, featuring fast response speed, high measurement accuracy, good linearity, long calibration cycle, weak acid resistance and weak alkali resistance;

◆ In explosion-proof occasions, the menu can be set through the isolated magnetic pen to facilitate on-site operation;

◆ Automatic temperature compensation function to reduce the measurement error caused by temperature change;

◆ The instrument supports multi-point piecewise linear calibration to ensure accurate measurement of oxygen concentration in the full range;

◆ Temperature and pressure compensation function to eliminate the influence of temperature and pressure on measurement accuracy;

◆ Explosion proof grade Exd IIC T6 Gb;

technical parameter

Measuring principle: fuel cell

Display mode: 128 × 64 dot matrix LCD

Measuring range: 0~10/100/1000PPm, 0~25%/100% O2 (different measuring ranges: micro or constant)

Measurement accuracy: 0~1000PPm/1%/25%/100% ≤± 1% FS

                                       0~100PPm≤±2%FS

                                       0~10PPm≤±3%FS

Repeatability: ≤± 1.0% FS

Response time: T90 ≤ 30S

Output interface: 4-20mA. DC (non isolated output, load resistance ＜ 1K Ω)

Two programmable dry contact passive alarm outputs, maximum contact capacity AC220V/2A

Working power supply: DC24V ± 10%, 200mA

Ambient temperature: - 10 ℃~+50 ℃

Storage environment humidity: ＜ 90% RH, non condensing

Working environment humidity: ＜ 100% RH, non condensing

Sample gas temperature: 0 ℃~40 ℃

Sampling mode: through type

Air inlet pressure: relative pressure ± 5kPa, stabilized atmosphere (control the pressure within the specified range to ensure 400~600mL/min flow)

Discharge pressure: free emptying (under safe conditions)

Sampling pipeline: Φ 6mm 316L seamless stainless steel pipe, PTFE pipe

Preconditioning stage: Grade I

Explosion proof grade: Exd IIC T6 Gb

Size: 248mm × 324mm × 157mm（H × W × D）

Mounting hole size: 145mm × 80mm（H × W）

Sensor life: ＞ 36 months (under normal service conditions)

Installation mode: wall mounted

Remarks: oxygen transmitters of different ranges can be equipped according to different site needs, namely, micro oxygen system and constant oxygen system; Corresponding sampling system and positive pressure, micro positive pressure and micro negative pressure sampling system can be designed according to different sites