PART THREE - OPERATION
SECTION 6 - TEST/MAINTENANCE
Rev. 6-501
Model P53 pH/ORP Analyzer (universal-mount 1/2 DIN)
73
6.2 HOLD OUTPUTS
☞
6.3 OVERFEED RESET
(relay timers)
The analyzer has a convenient feature to hold the analog
outputs at their last measured values for up to 30 minutes,
suspending operation of any connected devices.
1.
With the
screen displayed, use
Ø
Ø
key
to select the “HOLD OUTPUTS” line.
2.
Press
ENTER key
to immediately hold the analog out-
puts (“HOLD OUTPUTS: ENTER TO RELEASE” screen
appears, acknowledging hold is applied).
NOTE:
If the keypad is not used within 30 minutes, the
analog outputs will automatically change back
to their active states and the display will return
to the MEASURE screen.
3.
To release the hold at any time and return analog out-
puts back to their “active” states, press
ENTER key
(display returns to TEST/MAINT top-level menu screen).
When a relay overfeed timer “times out,” as indicated by its
blinking annunciator, the timer must be manually reset using
TEST/MAINT menu screens. The relay annunciator stops
blinking after reset.
All overfeed timers are manually
reset at once.
1.
With the
screen displayed, use
Ø
Ø
key
to select the “OVERFEED RESET” line.
2.
Press
ENTER key
to display “OVERFEED RESET:
DONE” screen, acknowledging all relay overfeed timers
have been reset.
3. To return to the TEST/MAINT top-level menu screen,
press
ESC key
or
ENTER key
.
