Teledyne 316RA / RB / RAD / RBD - Oxygen analyzers - Manual (Page 12)

TELEDYNE ANALYTICAL INSTRUMENTS
8
Model 316RA/RB/RAD/RBD Trace Oxygen Analyzer
Operations
Front Panel Controls
A) Meter Readout: Provides accurate linear 100-division scale or
digital readout of the analysis (analog meter labeled 0-10 ppm).
B) Range Selector Switch: Identifies (by the multiplying factor)
the basic 10 major divisions of the integral meter scale (i.e. X1
= 0-10 ppm range, X10 = 0-100 ppm range, etc.). For versions
with a digital meter, the divisions are 10 ppm, 100 ppm, 1000
ppm, 1%, and 25%.
C) Alarm Set 2 potentiometer: Allows user to set alarm set point
(optional).
D) Alarm Set 1 Potentiometer: Allows user to set alarm set point
(optional).
E) AC Power ON/OFF Switch: Turns the power on and off.
F) Fuse Receptacle: Contains primary fuse for unit. (Not shown
on RB version; located on internal mother board).
G) Sample Flowmeter: Contains throttle valve to regulate sample
flow.
H) SPAN Potentiometer: Used for calibrating purposes.
I) Cell Shutoff Valve: Used to shut off the sample flow to the
cell. (Not shown on RA version; located on internal piping
system).
J) Overrange LED: This LED is provided only on units with a
digital meter. The LED lights if the oxygen level is 25% above
maximum of selected range. When lit, move the range switch to
the next higher range.