Diagnostic Mode (Diag); Table 6-9: Current Loop Output Check; Table 6-10: Diagnostic Mode (Diag) Functions - Teledyne 300E Instruction Manual

Model 300E Carbon Monoxide Analyzer
Instruction Manual
An alternative method for setting up the Current Loop outputs is to connect a
250 ohm ±1% resistor across the current loop output in lieu of the current meter.
Using a Voltmeter connected across the resistor follow the procedure above but
adjust the output for the following values:
% FS
0
100

6.6. Diagnostic Mode (DIAG)

A series of diagnostic and configuration tools is grouped together under the menu
heading DIAG located under the SETUP Menu, in the MORE (see Appendix A)
subsection. These tools can be used in a variety of troubleshooting and diagnostic
procedures.
The various operating modes available under the DIAG menu is:
Display
Mode
DIAG I/O
DIAG AOUT
DIAG AIO
DIAG ELEC
DIAG DARK
DIAG FCAL
DIAG TCHN
P/N 04288 REV: A
Table 6–9: Current loop Output Check
Voltage across Resistor
for 2-20 mA
0.5 VDC
5.0
Table 6–10: Diagnostic Mode (DIAG) Functions
SIGNAL I/O: Allows observation of all digital and analog signals
present in the instrument. Allows certain digital signals to be
toggled between ON and OFF states.
ANALOG I/O: The analyzer is performing an Analog output Step
Test. This calibrates the Analog output channels.
ANALOG I/O CONFIGURATION: Analog I/O parameters are
available for viewing. Allows certain signals to be toggled between
ON and OFF states.
ELECTRIC TEST: The analyzer is performing an Electric Test. This
test simulates IR detector signal in a known manner so that the
proper functioning of the Sync/Demod Board can be verified.
DARK CALIBRATION: The analyzer is performing a Dark
Calibration procedure. This procedure measures and stores the
inherent DC offset of the Sync/Demod Board electronics.
FLOW CALIBRATION: The analyzer is performing a calibration of
the Gas Pressure/Flow Sensors.
TEST CHAN OUTPUT: Used to configure the TEST Analog Output
channel.
Voltage across Resistor
for 4-20 mA
Meaning
Operating Instructions
1 VDC
5.0
Manual
Section
6.6.1
6.6.2
6.6.3
6.6.4
6.6.5
6.6.6
6.4.7
77