SandSET-1000 12 VDC Sludge Alarm Device
D15649_E-2
Installation and Operating Instructions
Copyright © 2019 Labkotec Oy
7/13
We reserve the right for changes without notice
TEST FUNCTION
Test function provides an artificial alarm, which can be used to test the
function of the SandSET-1000 12 VDC alarm device and the function
of other equipment, which are connected to SandSET-1000 12 VDC via
its relays.
Attention! Before pressing the Test button, make sure that the change
of relay status does not cause hazards elsewhere!
Normal situation
When pressing the Test push button:
Alarm and Fault LED indicators are immediately on.
Buzzer is immediately on.
Relays de-energize after 2 sec of continuous pressing.
When the Test push button is released:
LED indicators and buzzer go immediately off.
Relays energize immediately.
Alarm on
When pressing the Test push button:
Fault LED indicator is immediately on.
Alarm LED indicator remains on.
Buzzer remains on. If it has been reset earlier, it will return to be on.
If relay 1 was already reset, it will de-energize again after 2 sec. of
continuous pressing.
Test will not affect relay 2, because it is already in alarm status.
When the Test push button is released:
The device returns without delay to the preceding status.
Fault alarm on
When pressing the Test push button:
The device does not react to the test at all.
3.2
Factory settings
If the operation of SandSET-1000 12 VDC is not as described in the
previous chapter, check that the device settings are as in figure 7.
Change the settings according to the following instructions if needed.
The following tasks must only be executed by a person with proper
education and knowledge of Ex-i devices.
We recommend, that when altering the settings the mains voltage is off
or the device is initialized before the installation is executed.
Figure 7. Factory settings
The settings are made with switches (MODE and DELAY) and
potentiometer (SENSITIVITY) located in the upper printed circuit board,
and the jumper located in the lower board (figure 7). In figure 7, the
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