The R17S Sensor-How It Works - Teledyne MD300 Operating/Service Instructions Manual

Introduction
Note: Contact the factory for retrofitting an existing instrument for
3 digit LCD display. For RS-232 reconfiguration, see
Section 2.1.6.
In addition to the above instrument configuration options, the
following optional equipment is available for your instrument:
DIN flow restrictor for sampling gas cylinder directly
P/N (B 75401)
Universal Pole Mounting Clamp (P/N CP 2343)
V-Mount Wall Adapter P/N B 647)
0-1 VDC Interface Cable (P/NB-75554)
RS 232 Interface Cable (P/N B-75555)
1.3 The R17S Sensor—How it works
The AD300/MD300 uses Teledyne Analytical Instruments Patented
R17S disposable oxygen sensor. The sensor is made up of a sensing
cathode and anode (fuel) immersed in electrolyte and packaged in a
small plastic container. Oxygen entering the sensor reacts with the anode
and a proportional current is collected at the sensing cathode. This
current is sent to the electronics where it is converted into a digital
signal and displayed on the LCD Screen.
A flow diverter is supplied with each R17S sensor for use with the
blue ―T‖ adapter. The flow diverter threads onto the end of the sensor
and facilitates the transport of gas into the sensor.
The diverter should be removed for ambient air sampling such as a
diving bell.
CAUTION: REMOVE AND SAVE THE DIVERTER WHEN THE
SENSOR IS USED IN CONFINED VOLUME
APPLICATIONS.
Teledyne Analytical Instruments
AD300/MD300
12