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SO65/MO65/SO85/MO85
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SR65/MR65/SR85/MR85/MR100
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SR96/MR96
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FOR AC V AND I MEASUREMENTS :
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Choices
of any 1 of ranges of 10 mA, 25 mA, 30 mA, 50 mA, 100 mA, 250 mA, 300
mA, 500 mA, 1 A, 2 A, 5 A, 10 A, 15 A, 20 A, 25 A, 30 A, CT
operated
for higher currents, 10 V,20 V, 30 V, 50 V, 60 V, 75 V, 100 V, 150 V,
300 V, 500 V and 600 V AC.
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Sturdy movement with zero adjustment from front.
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| Fluid damping to ensure dead beat movement. |
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5V
A burden.
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45
to 55 Hertz.
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Spade
or knife edge pointer with non linear scale.
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Flush
mounting.
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FOR DC V AND I AND TEMPERATURE MEASUREMENTS AND GALVANOMETERS
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Choices
of any 1 of ranges of 1 mA, 2 mA, 5 mA, 10 mA, 25 mA, 30 mA, 50 mA, 100
mA, 250 mA, 300 mA, 500mA, 1 A, 2 A, 5 A, 10 A, 15 A, 20 A,
25 A, 30 A,
shunt operated for higher currents, 50 mV, 60 mV, 75 mV, 100 mV, 250
mV, 500 mV, 1V, 2 V, 5 V, 10 V, 15 V, 20 V, 25 V, 30 V, 50 V,
75 V, 100
V, 150 V, 300 V, 500 V, 600 V, galvanometers of 30-0-30G and 50-0-50G
(sensitivity of 500-0-500µ A), 200° C (type J-Fe/con), 400° C
(type
J-Fe/con), 600° C (type J-Fe/con), 800° C (type K-Cr/AI), 1000° C (type
K-Cr/AI), 1200° C (type K-Cr/AI) and 1600° C (type S-pt/pt-Rh
10%). |
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Sturdy
movement with zero adjustment from front.
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Meter
sensitivity 1000 ohms per volt for voltmeters. 75 mV drop for ammeters.
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Spade
or knife edge pointer with linear scale.
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Alnico
high flux density magnets.
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Flush
mounting.
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Shape |
ROUND |
RECTANGULAR |
SQUARE |
Model no. for AC meters |
SO 65 |
SO 85 |
SR 65 |
SR 85 |
-- |
SR 96 |
Model no. for DC meters |
MO 65 |
MO 85 |
MR 65 |
MR 85 |
MR 100 |
MR 96 |
Over-all size |
83mm dia |
108mm dia |
85mm (W) x 70mm (H) |
110mm (W) x 86mm (H) |
117mm (W) x 100mm (H) |
96mm (W) x 96mm (H) |
Panel cutout size |
66mm dia |
86mm dia |
66mm dia |
66mm dia |
66mm dia |
92mm (W) x 92mm (H) |
Mounting details |
3 holes of 4mm  on 75 pcd |
3 holes of 5mm at 96.5 pcd |
4 holes of 3mm at 63.5mm x 49.5mm |
4 holes of 3mm at 97mm x 73mm |
4 holes of 4mm at 112mm x 90mm |
Rear mounting bracket is provided. |
Inside depth |
30mm |
57.5mm |
39mm |
22mm |
35.5mm |
72mm |
Scale length |
48.5mm |
67mm |
59mm |
72mm |
93mm |
98mm |
Case material |
Bakelite |
Bakelite |
ABS |
Bakelite |
Bakelite |
ABS |
Accuracy |
± 2.5% |
± 2.5% |
± 2.5% |
± 1.5% |
± 1.5% |
± 1.5% |
Price for AC
meters (Rs.) |
220/-
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250/- |
250/- |
300/- |
350/- |
250/- |
Price for DC meters (Rs.) |
300/- |
350/- |
350/- |
400/- |
450/- |
370/- |
Price for frequency meter(Rs.) |
- |
- |
- |
- |
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550/- |
Insulation Resistance: More than 20 mega ohms between terminals and casing at 500V DC.
High Voltage Breakdown:
Capable of withstanding 2.5 KV r.m.s for one minute between terminal and
casing.
Damping Time:
Less than 4 seconds for pointier to come to within 1.5% of its steady
state value when signal of 2/3 rd of full scale value is
applied. |
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