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Changing the default settings:
The SIM-2 can be reconfigured by means of four jumpers . (The original conf iguration is marked on
its label). The jumpers are placed on the PCB behind the rear cover, under the set point
potentiometer. See below drawing for clarification.
DIP#1 = STANDARD/CUSTOM
DIP#2 = 500 uF/2000 uF
DIP#3 = 0 to 1 MΩ/0 to 10 MΩ
DIP#4 = ND/NE
DIP#1 can be set to OFF (STANDARD) and the SIM-2 will load its settings from hard-coded
memory area. If set to ON (CUSTOM), the SIM-2 will load its settings from a configurable memory
area, used for custom settings, set up by DEIF when ordered.
DIP#2 can be set to either OFF (500 uF) or ON (2000 uF). The chosen setting will determ ine the
maximum leakage capacitance. Please note that this will also change the measuring time.
DIP#3 can be configured for OFF (m easuring range 0 to 1 MΩ), with 22 kΩ on the scale centre or
set to ON (measuring range 0 to 10 MΩ), with 220 kΩ on the scale centre. Please notice that a
change in measuring range also involves a change of scale.
DIP#4 settings will determine the SIM-2 relay output. If set to OFF (ND), the output will be
configured as a normally de-energised contact. If set to ON (NE), t he output will be conf igured as a
normally energised contact.
QUICK GUIDE
Insulation monitor, SIM-2
Refer to www.deif.com for detailed information
Document no.: 4189330019A
IMPORTANT - Use electrostatic discharge protection!
Sufficient care must be taken to protect the PCB against static discharges during t he configuration. Once
the unit is installed and connected, these precautions are no longer necessary.
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Connection diagram
Installation
Verification: Verify that the instrument configuration is according t o your order.
Aux. supply: Connect terminals to correct voltage. See label on unit.
Measuring circuit: Connect PE to ground and P to a phase (if it is a 3-phased network – connect to
any of the phases).
Warning: If a high-voltage “MEGGER” is used, the SIM-2 must be disconnected at terminal “ P”
before testing is carried out. Ignoring this may result in damage to the SIM-2.
Adjustment of the set point
When the selector on the front is placed in Test mode, the meter indication shows the set point
setting directly. Set point potentiometer on the rear side is used for changing value.
Remember to return the selector to normal mode after setting!
Set point test/control During the first 10 seconds after power-up, the meter pointer shows the
actual set point setting and activates its relay.
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