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MOVING
IRON & MOVING COIL METERS |
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| Moving
Iron Instruments are generally
used for measuring AC Voltage
and Currents. A feature of the
moving element is that it is fitted
with synthetic sapphire jewels.
The movement is light and quick
acting, but extremely robust.
An efficient system of fluid damping
is employed. The movement is efficiently
shielded against the effect of
external magnetic fields.
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| Moving
Coil Instruments are used for
measuring DC values. They can
be used too on AC systems, if
the input is fed through bridge
rectifiers. A Centre magnet system
is incorporated in our moving
coil instruments which completely
shields the movement from the
effect of external magnetic fields.
The movement is pivoted between
synthetic sapphire jewel bearings
for frictionless operation.
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| The
above meters can be used for higher
ranges by using necessary CTs/PTs
and external shunts, which are
also manufactured and offered
by us. |
| Accuracy
Class: 1 to 1.5% as per ISS
1248/83. |
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- MOVING
IRON AMMETERS
Range: 50mA to 100A Self
contained and higher ranges
via current transformers, with
secondary 1A or 5A.Overload
scales 2.3 or 4 & 6 times
rated load can be provided.
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- MOVING
IRON VOLTMETERS
Range: 50V to 600V Self
contained and higher ranges
by use of PTs.
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- MOVING
COIL AMMETERS
Range: 50 µA to 30A Self
contained and external shunt
operated for higher ranges.
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- MOVING
COIL VOLTMETERS
Range: 50mV to 600V Self
contained and higher ranges
by use of external resistance
box.
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| SIZE |
48X48 |
72X72 |
96X96 |
144X144
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65round
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96round |
65X65 |
85X85 |
106X82 |
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CUTOUT IN MM. |
44X44 |
68X68 |
92X92
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138X138 |
66Ø |
110Ø |
55Ø |
65Ø |
65Ø |
| SCALE
LENGTH IN MM. |
40 |
60 |
90 |
140 |
50 |
95 |
52 |
75 |
105 |
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