Use; Airflow Alarm - Control Box Leds - Nederman Airflow Alarm Kit Manual De Instrucciones

EN Airflow Alarm Kit
9. When the adjustment has been completed, note the following in the
control protocol, see section 9. Control protocol for Airflow Alarm:
–
–
–
–
–
–
–
Make and keep a copy of the control protocol for Nederman service
technician.
5

Use

WARNING!
If there is work with hazardous substances that are assigned mandatory
exposure limits and there is a problem with the Airflow alarm, stop work
immediately and fix the problem.
The Airflow alarm limit has been set according to the arrangement and
operating parameters of the particular extraction system. Normally, the
Airflow Alarm limit will be at 90% airflow per workplace, 100% being the
airflow specified. When monitoring a group of workplaces, the airflow per
workplace is an average value. The Airflow Alarm limit setting is found in the
control protocol for the exhaust alarm.
The Airflow Alarm begins monitoring as soon as the fan starter is activated,
and monitors pressure conditions in a suitable duct. The alarm is activated
when the static pressure in the duct is outside the preset limits.
In the event of an alarm, the red ALARM LED on the Airflow Alarm control box
will be lit, and any external connected alarm devices will be activated. Stop
work at once, find the cause of the alarm, and fix the problem.
When the cause of the alarm has been fixed, and the static pressure in the
duct returns to within the normal range, the alarm will turn off automatically,
and the Airflow Alarm will resume monitoring.
During normal operation, the green ON LED should be lit, which indicates that
the 230 V source works. If the green ON LED is not lit during normal operation,
one of the 230 V sources is defective and the red POWER FAILURE LED will
also be flashing. The 230 V source must be fixed and reconnected at once.
If changing a fuse cannot solve the problem, contact a Nederman service
technician for assistance. See also figure 5.
5.1

Airflow Alarm - Control box LEDs

Below is a description of the top of the Airflow Alarm. See figures 1 and 5:
ALARM
POWER FAILURE
16
Monitoring point
Workplaces covered by the monitoring
Adjustment date
Adjusted by
Airflow planned V
0
Static pressure, PS at V
0 0
Alarm limit setting
Risk of personal injury.
Description
Red Too low airflow in the system.
Red Problem with electrical supply to unit.