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Alarm level
When the device is switched ON, it starts to measure with the following
regular settings: regular Alert and Alarm levels are based on measurements
carried out in Sintrol test laboratory. Due to this, it is recommended that the
user does a new setup either manually or using auto-setup procedure. Manual
setup is done by setting new suitable values to the L1 and L2 functions. Auto-
setup procedure starts automatically when button wire (green) is connected to
the power supply minus (-) button. Both functions (and other detailed
information about setting and changing measurement parameters can be
found in the software manual.
Factory default for alarm levels:
Normal level
1000 - 2000 units in clean office air
Alert level
1 000 000
Alarm level
4 000 000
In normal indoor environment Dumo signal level should stay under 5000 at
the most of time.
Ambient monitoring and ambient dust concentration level is always strongly
depenpending of measurement environment. Because of this it is strongly
recommended that user set alarm levels always in new measurement location
or environment
In practise there are three ways to do dust monitoring with Dumo:
- The simplest way is to monitor concentration level by using indicator LEDs.
In this type of monitoring, only power supply is needed.
- The second way is to do monitoring with RS485-terminal. When using
RS485 terminal, it is possible to monitor data on-line on a PC screen. In this
EASTERN ENERGY SERVICES PTE LTD.
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