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Description of the relay outputs
LV1 and LV2
Limit value outputs
For reporting that a limit value has been exceeded, two volt-free relay contacts are available. For both contacts the limit
values, the hysteresis and the function can be independently programmed:
Function
Type of contact
Action
LV1
S
active at
limit value in excess of
limit value 1
volt-free
change-over contact
programmable:
S
Continuous contact
S
Impulse (1 - 99 seconds/minutes)
S
Interval (1 - 99 seconds/minutes)
S
Two -step regulator
S
Hysteresis (1, 2 or 3 limit value in excess)
LV2
S
active at
limit value in excess of
limit value 2
volt-free
change-over contact
programmable:
S
Continuous contact
S
Impulse (1 - 99 seconds/minutes)
S
Interval (1 - 99 seconds/minutes)
S
Hysteresis (1, 2 or 3 limit value in excess)
Menu values:
"M"
º
BASIC PROGRAM
º
PROGRAM VALUES
º
LIMIT VALUES
"M"
º
BASIC PROGRAM
º
PROGRAM VALUES
º
FUNCTION LV1
"M"
º
BASIC PROGRAM
º
PROGRAM VALUES
º
FUNCTION LV2
"M"
º
BASIC PROGRAM
º
PROGRAM VALUES
º
HYSTERISIS LV1
"M"
º
BASIC PROGRAM
º
PROGRAM VALUES
º
HYSTERISIS LV2
Alarm
Fault message
The "Alarm" output is a volt-free change-over relay contact. During trouble-free operation the contact between the
terminals 16 – 17 is closed and the one between terminals 15 – 16 is open. When the voltage fails or the alarm is
activated, the contact between terminals 15 – 16 is closed and the one between 16 – 17 is open.
T
The unit is equipped with a range of monitoring functions.
- The "Alarm" output remains activated (with terminals 15 – 16 closed) as long as the fault persists.
- The red LED "Alarm" and the text on the display indicate a fault.
- The error signal at the "Alarm" output is deleted by cancelling the fault with the "Horn" key.
- An error message can only be deleted after the fault has been corrected.
- Exception:
“Reagent low level“, this message is confirmed in the M-menu by entering in the new reagent level.
The following faults activate the "Alarm" output and are displayed:
Low-water pressure
Function fault optics
Measuring fault analysis
Function fault dosing pump
Function fault outlet to drain
Reagent low level
Measuring fault dirtiness
Measuring fault turbid
Measuring range exceeded
Error messages are described on page 16.
For a more detailed description of the programming refer to page 14. For general maintenance refer to page 17.
Содержание ECO
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