Operation Mode Display; Hold Function - bürkert 8205 Bedienungsanleitung

4 OPERATION

4.2 Operation Mode Display

The following process values are displayed in the display operation mode.
PH = 12.60
20.6 °C
10.32 mA
0......9
-313 mV
HOLD
PH CALIB

4.2.1 HOLD function

A continuous 4-20 mA output corresponding to the last value measured before this option
was entered is generated. The relays are locked in their last state. This allows the electro-
de to be cleaned without interruption of the process. The display in the operation mode is
flashing and there is no access to the parameter definition or the test menu, as long as the
HOLD-function is activated. To disactivate HOLD function, enter again "HOLD" option and
confirm "HOLD NO".
HOLD ENTER
Press Enter for
5 seconds
ENTER
PH CALIB
pH value display with two decimals.
Temperature in °C or °F.
Output signal 4...20 mA, proportional to the pH or temperature
value.
Electrode voltage, option
(see Calibration Menu).
HOLD-function (quick blincking)
Calibration of the pH electrode signal.
HOLD YES
HOLD NO
E-24-
PH TRANSMITTER 8205