Teledyne 300 Instruction Manual page 93

micro-processor is also used to adjust for offset and gain needed to match DAC outputs
to external voltage standards, and no on board adjustments are needed or provided
this function.
The outputs of all DAC's are "looped-back" to Analog input (via the Mother Board)
channels. This loop back allows for automatic micro-processor checking of A/D
10.6.3.3 Digital I/O lines
32 Digital Lines are used to provide the primary means for the micro-processor to control
various analyzer functions(valves, heaters, etc.) and to send and receive status conditions
to/from external equipment. These lines are configured as 8 digital inputs and 24 digital
outputs. The convention for all Digital I/O Lines is High (+5V)-True, Low (0V)-False.
10.6.3.4
Proper operation of the V/F board can be confirmed by performing an ADC calibration
procedure as described in Section 9.2. If this calibration procedure can be performed
correctly, it is highly probable that the V/F card is functioning properly.
If the V/F does not function properly, check the following:
1. Confirm the presence of appropriate power by checking for:
•
•
•
If any of these voltages are incorrect, check the DC Power Supply as
described in Section 10.6.4.
2. Confirm that all jumpers and switches on the V/F board are set properly,
as follows:
V/F BOARD JUMPERS - FACTORY SETTINGS
Jumper
B12
B14
B15
P/N 02163G Teledyne API Model 300 CO Analyzer Instruction Manual - Page 87
+5V between TP 4 and TP 5
+15V at TP 1 and TP 3
-15V at TP 2 and TP 3
Factory Set Jumpers
JP1
JP2
TABLE 10.3
Setting
1-2
1-2
3-4
ON
Set to match input line frequency
for