该微量氧分析仪 AMS3160 基于电化学原理。该型号分析仪是一款高精度、长寿命测量技术、微处理控制的电子分析仪。型号AMS3160是通用性分析仪,最低量程可以做到 0 ... 10 ppm O2,最高0-100%Vol O2。可多量程自动切换技术。
Measuring principle
Electrochemical oxygen sensor
Measuring range
4, manual changeover
0 … 10, 0 … 100, 0 … 1000, 0 … 10000 ppmv
Analogue signal port
0 … 10 V, 0 (4) … 20mA
Reproducability
+/- 2 % of the measuring value
Resolution
0,01 ppm – C(O2) – 1 ppm
depending on the O2 concentration
T90-Time
ca. 40 seconds
Display
3 ½ digit LCD display
Messages
2 free adjustable messages in relation to the O2 concentration
Gas connection
inlet / outlet 3 / 6 mm ferrule pack
Gas sampling
built-in inlet / outlet valve flowmeter
Sample flow
min. 20 Nl/h, max. 40 Nl/h
Sample pressure
(inlet) min. 1,01 bar abs., max. 2 bar abs.
Sample pressure(measuring cell)
max. 50 mbar pressure
ambient operating temp.
- 0 °C up to + 45 °C
Relative humidity of the gas
0 … 99 % not condensing
Power supply
110 or 230 VAC / 60 - 50 Hz
Protection / Housing / Dimensions
IP 65 / wall mounting housing 300 x 250 x 320 mm
IP 54 / 63 TE, 3 HU portable housing
IP 20 / 19“ rack 3 HU
IP 20 / ½ 19“ electronic housing, 3 HU
IP 20 / ½ 19“ cassette
Weight
8-10 kg
Options
gas pump
pressure reducer (max 10 bar in, 50 mbar out)
automatical bypass- and purge valve
analogue outlet galvanically separated
particle filter 2-7μm
manual 5 way valve
charging unit
protective case
electronically flow control / -alarm
The measuring gas diffuses through a membrane to a thin layer of electrolyte. At the cathode the
oxygen reduces. The free flowing electrons are drifting to the Anode. This generates a electrical
current which is direct proportional to the oxygen concentration of the measuring gas. The use of
electrochemical sensors allows in standard applications the measurement of trace oxygen in a number of complex and aggressive gas mixtures. The fitting sensor for a specific application has to be selected considering the different available electrolytes and electrodes. It is therefore essential to know the physical and chemical application parameters such as temperature, gas pressure, humidity content and the consistency of a specific measuring gas.
微量氧分析仪, AMS3160
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