Commissioning of the water sampling station
27
© Lutz-Jesco GmbH 2020
Subject to technical changes.
200116
BA-42840-02-V03
Water sampling station
EASYPRO COMPACT
Operating instructions
Perform the following work steps:
1.
Working in the main menu under System > Inputs, navigate to the
“Virtual” tab.
2.
Working in the “Virtual” tab, configure the desired calculation of the
effective chlorine and state the following information.
3. Calculation:
Select “effective chlorine” to calculate the effective
chlorine.
4. Free chlorine:
Select the sensor which measures the free chlorine.
5. pH value:
Select the sensor which measures the pH value. If no
sensor is present, you can enter a reference value measured once
which can be used for the calculation.
6. Temperature:
A temperature value is required to calculate the
effective chlorine. Select the temperature input which can be used
for the calculation. If no temperature sensor is present, you can set a
reference value measured once which can be used for the calcula-
tion.
7. Min-alarm:
Activate or deactivate the minimum alarm and state a
value under which the alarm will be triggered.
8. Max-alarm:
Activate or deactivate the maximum alarm and state a
value over which the alarm will be triggered.
9. Delay:
Set a time delay for the “minimum and maximum alarm”.
ü
Configuration of the calculation of the effective chlorine
completed.
8.6.1.6 Digital inputs
You can use up to 8 digital inputs to evaluate switching statuses and to
detect them as alarm message which are to be documented in the
logbook.
Perform the following work steps:
1.
In the main menu under System > Inputs, navigate to the “Digital”
tab.
2.
In the “Digital” tab, configure the inputs and state the following
information.
3. Action:
Choose between “OK = open” (N.O., working contact) or “OK
= contact” (N.C., break contact).
4. Function:
Select a function from Tab. 27 “Functions of the individual
controllers” on page 24 depending on the desired reaction of the
device to the input.
ü
Configuration of the digital inputs completed.
Function
Reaction
Off
The switching of the contact has no influence
on the measurement or control.
Setpoint changeover
You can use the contact to switch between
reference sets.
Measuring water
shortage
All controller outputs will be switched off.
External stop
All controller outputs will be switched off.
Tab. 28: Functions digital inputs
Function
Reaction
Pre-alarm 1 – 4
Only display as an alarm message. Nothing is
switched off.
Main alarm 1 – 4
The appendant controller output is switched
off. The other outputs remain unaffected.
Others
You can assign an individual name to this
digital input. The name is displayed in the
alarm messages during switching the
contacts.
Tab. 28: Functions digital inputs
8.6.2 Outputs
Depending on the equipment, you can connect a range of actors to the
device and actuate them. Make sure that you actuate the actor with the
correct signal type and select an appropriate output module with the
configuration.
An alarm relay, four analogue outputs and the possibility of connecting
external LEDs (e.g. for water sampling stations) are always available.
8.6.2.1 Controller outputs
You can configure and use up to three controllers.
Pre-conditions for actions:
ü
You have used the configuration assistant to assign an input and a
control function to a controller (see section “Configuration assistant”
on page 25).
Perform the following work steps:
1.
Working in the main menu under System > Outputs, navigate to the
“Controller” tab.
2.
Working in the “Controller” tab, configure the controller output and
state the following information.
3. Y-alarm:
Activate the Y alarm. The Y alarm is a safety cut-out. If the
controller output power amounts to more than 95 % (e.g. through a
malfunction) over the set time, the Y alarm will be triggered and the
corresponding controller output will be set to 0 %. You can set a time
between 0 and 200 minutes.
4. Basic load:
Depending on the controller function, you can set a base
load which is always active independently of the control variable.
With a base load of 10 %, the actor is always actuated with a
minimum of 10 %.
5. Limit:
Depending on the controller function, you can set a limit of
between 5 – 100 %. State the value at which the actor should be
actuated as maximum.
6.
Further settings are dependant on the function of the controller.
Further information is available in Tab. 27 “Functions of the individual
controllers” on page 24.
ü
Configuration of the controller outputs completed.
