Recorder outputs
9
SYCON
3000 H
Recorder outputs
At the recorder outputs RC1 and RC2, line recorders or dot printers with a current input of 0 - 20 mA
or 4-20 mA can be connected. Programming occurs in programme steps 8.1 and 8.2 respectively.
Recorder output RC 1
A recorder at this output registers the following states of the analyser:
1. Analysis active, servicing or instrument has been switched on
4. Refill indicator
2. Analysis result: water soft or beneath the limit value
5. Fault
3. Analysis result: water hard or above the limit value
The individual states can be accorded current values from 0 to 20 mA in programme step 8.1.
After the instrument has been switched on, during an analysis and in the Servicing setting, the follow-
ing is displayed:
"Analysis active".
After each analysis the result "Water soft" or "Water hard" is displayed.
If indicator has to be refilled, the display "Refill indicator" appears instead of the display "Analysis ac-
tive".
As a collective fault the display "Fault" appears.
The following 4 faults are possible: Indicator shortage, blank value too low, measured value too high,
measured value too low. These faults effect an analysis stop, which must be deleted by hand.
Recorder output RC 2
A recorder at this output permanently registers the displayed water hardness. An alteration can only
take place after a new analysis. The display can be scaled as desired. Initial and final values are laid
down in programme step 8.2.
The displayed current value is calculated by the following formula with the hardness unit mg/l :
Examples for the initial values
0 and 4 mA with a final value of 20 mg/l and 15 mg/l
The lower measurement range limit – according to the limit of the indicator used – is displayed on
switching on the instrument and when the limit has been fallen below (underrun). The upper meas-
urement range limit is displayed when the measurement range is exceeded (overrun) and in the event
of a fault.
]
[
]
[
20
(
]
/
[
]
/
[
.
)
[
mA
value
initial
mA
value
initial
mA
l
mg
value
final
l
mg
value
hardn
measured
mA
value
Current
+
−
∗
=
0
Example diagramme Recorder output RC1und RC2
Analysis
= 4 mA
(RC 1)
2
4
6
Water Soft
= 8 mA
(RC 1)
Water Hard
= 12 mA
(RC 1)
Refill indicator
= 16 mA
(RC 1)
Fault
= 20 mA
(RC 1)
8
10
12
14
16
18
20
Water hardness
(RC 2)
Pow er ON
States = RC 1
Water hardness = RC 2
0
10 mg/l
20 mg/l
0
10 mA
20 mA
0
8 mg/l
16 mg/l
4 mA
12 mA
20 mA
