Teledyne OT-2 - Oxygen transmitter system - Manual (Page 7)

1-3 Teledyne Analytical Instruments
Model OT-2 System Introduction 1
1.4 Operator Interface
The OT-2 System is housed in a rugged metal NEMA-4 case
with the display visible from the front and the controls accessible
from inside the front door. See Figure 1-1. The front door has a
clear Lexan window for viewing the sample system components
and transmitter display.
Figure 1-1 Front View
Access Door: For access to the Micro-Fuel Cell and transmit-
ter controls, the front door swings open when the slotted latch in
the middle right side of the door is turned counter-clockwise. The
replaceable Micro Fuel Cell is housed in a nylon cell block posi-
tioned for easy access.
OT-2 Electronics & Display: The OT-2 meter display is a LCD
device that produces 3.5 decimal, 7-segment numbers that are
legible in daylight. It produces a continuous readout of oxygen
cencentration. Accessing the transmitter electronics requires
unfastening the screws of the transparent front cover of the OT-2
and lifting the cover off.
Flowmeter: Monitors the flow of gas past the sensor. Readout
is 0.1-1 standard cubic feet per hour (scfh).
H
2
S Scrubber: The H
2
S scrubber prevents H
2
S gas from affect-
ing the oxygen sensor.