Setting The Hysteresis; Setting The Alarm Delay; Switching On Dosing Time Monitoring; Replacing A Chemical Container - Grundfos Oxiperm Pro OCD-162 Instrucciones De Instalación Y Programación

9.10.2 Setting the hysteresis

The hysteresis indicates the tolerance of the alarm value
(alarm value ± 0.5 x hysteresis). In this menu, you set the
hysteresis for the two alarm values:
1. "main menu > alarm" > [OK].
2. "alarm value ClO2" > [OK].
3. "alarm on" > [OK].
4. "hysteresis" > [OK].
hysteresis
0.01 mg/l
The factory setting is 0.01 mg/l.
5. Enter the value > [OK].

9.10.3 Setting the alarm delay

1. "main menu > alarm" > [OK].
2. "alarm value ClO2" > [OK].
3. "On" > [OK].
4. "alarm delay" > [OK].
alarm delay
1 sec
The factory setting is 1 seconds.
The setting range is 1-999 seconds.
5. Enter another value > [OK].
The alarm relay is switched on at the end of the specified
time.

9.10.4 Switching on dosing time monitoring

Not for applications with external batch tank.
1. "main menu > alarm" > [OK].
alarm
alarm value ClO2
dos. time monit.
2. "dos. time monit." > [OK].
dos. time monit.
on
off
The factory setting is "off".
3. Select "on" to switch on dosing time monitoring, confirm with
[OK].
max. dosing time
600 minutes
The factory setting is 600 minutes.
The setting range is 0-600 minutes.
4. "factory setting" > [Esc], or select another value > [OK] >
[Esc]. The alarm is triggered, if the controller sets the
predefined maximum capacity (Y-OUT = X %) for the dosing
pump for longer than the specified time.
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9.10.5 Replacing a chemical container

OCD-162-5, -10: Make sure that the chemical
Note
Note
containers are positioned under the system.
Warning
Risk of explosion when mixing up chemical
containers or suction lances.
Possible consequences are personal injury and
serious damage to equipment.
Do not mix up chemical containers or suction
lances.
Observe the labels on chemical containers,
suction lances and pumps: red = HCl,
blue = NaClO .
2
Warning
Risk of burns resulting from drips when the
suction lance is removed from the chemical
container.
Risk of poisoning from chlorine dioxide gas.
Use personal protective equipment while working
on the system.
Do not allow sodium chlorite and hydrochloric
acid to come into contact.
Do not allow drips to fall on the skin, clothing,
shoes or ground.
Immediately rinse away any drips on the
container or in the collecting tray with water.
Chemical containers should be replaced:
• As soon as possible after the low level signal is displayed.
• Immediately after the empty signal is displayed.
Procedure:
1. Untwist the screw cap from the suction lance in the chemical
container.
2. Carefully pull the suction lance out of the container, and
immediately insert it into the drip pipe in the collecting tray.
3. If any drips fall onto the container or ground, dilute with water
and rinse away immediately.
4. Remove the empty chemical container. Screw the original
cover onto the container for storage prior to disposal.
5. Prepare a full chemical container.
6. Unscrew the original cover, and retain it.
7. Insert the suction lance into the full container, and fasten the
screw cap again. As soon as the suction lance is inserted, the
chlorine dioxide production starts up again. The alarm
message is confirmed automatically.
Reset the chemical consumption counter to zero.
For details, see section
9.8.8 Resetting the chemical
consumption after changing containers.