E-32-
8205
pH CONTROLLER 8205
5 MAINTENANCE
5.3 Error messages
"
ERROR
" on the display (except in electrode calibration function) indicates that calibration
data are lost. By pressing ENTER, the user access to operation menu but the device works
with the factory settings (see §5.4). The controller needs re-calibration. If this message
recurs, please return the controller to your supplier.
Temperature: If "----
°
C" or "----
°
F" is displayed, temperature is out of range (-40...+150)
or connection with Pt 1000 is interrupted. In this case "
PH
=
--
" is displayed. For the outputs
(current and relays) pH=0 is fixed.
pH values out of range: pH>14 or pH<0, "
PH
=
--
" is displayed. For the outputs (current
and relays) pH=14, respectively pH=0, are fixed.
Electrode voltage: >+575 mV ou <-575 mV. "
PH
=
--
" and "
----
m
V
" are displayed. For the
outputs (current and relays) pH=0, respectively pH=14, are fixed.
Power failure: In case of power failure, the display turns off, 4-20 mA and pulse output
to 0, alarm relays open. When the power supply is turned on , the controller is set to the
previous configuration and the measure goes on.
Language:
English
Temperature Unit:
°
C
4-20 mA Output:
pH
4 mA:
00.00
20 mA:
00.00
Output1:
Type Pulse
Time 1:
0
Freq 1:
0
Period 1: 0 (
PWM1)
Output2:
Type Pulse
Time 2
0
Freq 2:
0
Period 2: 0 (
PWM2)
Setpoint:
Limit1:
3.00
Set1:
6.00
Set2:
8.00
Limit2:
11.00
Controller:
Type : PID
Proportional KP1: 1.0
KP2:
1.0
Integer
TN1: 1.0
TN2:
1.
Derivative
TV1: 1.1
TV2:
1.1
Alarm:
Type pH
MIN:
00.00
MAX:
00.00
DEL1:
000
INV:
No
MANUAL:
Yes
Pt1000:
Yes
Filter:
Filter 2
5.4 Factory-setting of pH controller type 8205 at delivery
