MI00138 -E
3
ENGLISH - 4/6
ATTENTION!
BEFORE YOU ATTEMPT USING THE DIP-SWITCH, MAKE SURE
THAT YOU HAVE DISCONNECTED ALL CIRCUITS AT
DANGEROUS VOLTAGE.
The instrument satisfies standard 60688/1997; in particular, overvoltage tests of input
voltage are referred to
give in Other Specifications.
rated input voltage
Voltage overloads higher than maximum voltage given in Input Specifications may
damage the instrument.
The range of the instrument is established by the positions of the 4-way DIP-switch. The
first three ways select one of the 5 preset ranges, while the fourth way (usually off) enables
the insertion of the trimmer on panel, which gives a continuous-control extended range of
0..100 Vac (0..90 Vdc): if you rotate the trimmer clockwise you increase the output
(reducing the maximum range of the instrument), else you reduce the output increasing
the maximum range. If input voltage is present,
,
you must use an insulated screwdriver
because the insulation of the adjusting screw is not guaranteed.
Lower voltage input is 4 Vac o 5 Vdc for any range. These values are the amplitude
thresholds under which the instrument detects 0, that is transmits 4 mA.
The table below shows the combinations useful for the preset range values.
INPUT FULL SCALE SETTINGS
Range
Range / Trimmer
DIP
100Vac / 90 Vdc
100 Vac + 0..100 Vac / 90 Vdc + 0..90 Vdc
200Vac / 180 Vdc
200 Vac + 0..100 Vac / 180 Vdc + 0..90 Vdc
300Vac / 270 Vdc
300 Vac + 0..100 Vac / 270 Vdc + 0..90 Vdc
400Vac / 360 Vdc
400 Vac + 0..100 Vac / 360 Vdc + 0..90 Vdc
500Vac / 450 Vdc
500 Vac + 0..100 Vac / 450 Vdc + 0..90 Vdc
(1)
DIP
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
on
off
on
off
on
off
on
off
on
off
on
off
on
off
on
off
on
off
on
off
(1):
Maximum input voltage must not exceed 500 Vac o 710 Vpk anyway.
ATTENTION!
TO ADJUST THE TRIMMER ON PANEL AN INSULATED
SCREWDRIVER MUST BE USED.
