AMS 3185

The AMS 3186 is the successor of the old AMS 3185 trace oxygen analyser. We don’t manufacture the AMS 3185 anymore, but we ensure the service and maintenance.


Technical data

Analyser AMS 3185
Measuring principle Electrochemical oxygen sensor
Application Gases Industries, Chemical Industries
Measuring range 4
0 … 10, 0 … 100, 0 … 1000, 0 … 10000 ppmv
Analogue signal port 0 (4) … 20mA, galvanically separated,
with measuring range changeover and digital identification
Reproducability +/– 2 % of the measuring value
Resolution 0,01 ppm – C(O2) – 1 ppm
depending on the O2 concentration
T90-Time ca. 40 seconds
Dispaly 2* 20 digit, illuminated LCD display
Messages 2 free adjustable isolated changeover relays
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
digital communication serial interface RS 232
Ambient operating temp. - 5 °C up to + 45 °C
Relative humidity of the gas 0 … 99 % not condensing
Power supply 230 VAC, 24 VAC
Protection / Housing / IP 55 / wall mounting housing / 19“, 3 HU, 473 mm deep
Dimensions IP 20 / 19“ rack, 3 HU
Ex-classification in IP 55 wall mounting housing with inert gas purge also
qualified for applications in Ex-Zone 2
Weight 5 – 7 kg
Options 5-way bypass and purge valve, manual
electronically flow control
external sensor
thermostated sensor
sampling pump
auto calibration, also with remote control
automatic purge of the sensor
pressure reducer max. 10 bar, out 50 mbar
Version: AMS 3185 E V01-2010-12