PART THREE - OPERATION
SECTION 6 - TEST/MAINTENANCE
Model P53 pH/ORP Analyzer (universal-mount 1/2 DIN)
Rev. 6-501
74
6.4 OUTPUT (1 and 2)
Analog Test Signals
☞
6.5 RELAY (A, B, C, and D)
Operating Test
The analyzer can provide analog output test signals of a
desired mA value to confirm operation of connected de-
vices.
These instructions provide an Output 1 test
signal. Provide an Output 2 test signal in the same way
using its respective menu screens.
1.
With the
screen displayed, use
Ø
Ø
key
to select the “OUTPUT 1” line.
2.
Press
ENTER key
to display a screen like
.
NOTE:
The mA output test signal is now active. Its
value is shown on this screen.
3.
Use
arrow keys
to adjust the displayed value to obtain
the desired mA test signal at Output 1 terminals.
4.
To remove the output test signal and return to the
TEST/MAINT top-level menu screen, press
ESC key
or
ENTER key
.
Relays A, B, C, and D can be tested to confirm their opera-
tion.
These instructions test Relay A. Test other relays
in the same way using their respective menu screens.
1.
With the
screen displayed, use
Ø
Ø
key
to select the “RELAY A” line.
2.
Press
ENTER key
to display
. Relay A
should be energized. Confirm this by checking its NO
and NC relay output terminals with a continuity meter.
