РА1.007.001РЭ-001
10
PARMA Ltd.
Opening of magnetic circuit of clamps
9±0.5
Mass, no more than, kg
1
Dimensions, no more than, mm
190x70x160
4.7
Design and operation of the device
4.7.1 Design
4.7.1.1
Appearance of the device is shown on fig. 1. The device is
in insulated case made of impact resistant plastic. It is portable and placed in
a soft bag with a belt, used for storage of accessories as well. The case con-
sists of: an upper cover (1) and a base (2), connected with four screws, and
two sides, front (3) and back (4) ones. On the back side there is a cover for
placing of autonomous power-supply battery. On the front panel (3) there is a
power switch (5), display lighting button (6), double terminal (7) for connec-
tion of phase (A) voltage signal or Uref, single terminal (8) for connection of
phase (B) voltage signal, double terminal (9) for connection of phase (C)
voltage signal or Um, jack (10) for connection of a clamp Iref, jack (11) for
connection of a clamp Im, display (12). The jack for connection of the supply
line of 220 V is situated on a side of the base (13).
РА1.007.001РЭ-001
19
PARMA Ltd.
Figure 13
6.2.10 Display lighting
6.2.10.1
Working in conditions of poor illumination momentary press
the button with the sign “” on the front panel. The display lighting will switch on.
Time to switch off will be no less than 10 sec.
DIRECT
PHASE SUCCESSION
180°
270°
0°
90°
Uc
Ua
120°
–120°
Ub
REVERSE
PHASE SUCCESSION
180°
270°
0°
90°
Ub
Ua
120°
–120°
Uc
