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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
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ROUND
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RECTANGULAR
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SQUARE
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Model no. for AC meters
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SO 65
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SO 85
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SR 65
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SR 85
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--
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SR 96
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Model no. for DC meters
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MO 65
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MO 85
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MR 65
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MR 85
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MR 100
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MR 96
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Over-all size
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83mm dia
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108mm dia
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85mm (W) x 70mm (H)
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110mm (W) x 86mm (H)
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117mm (W) x 100mm (H)
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96mm (W) x 96mm (H)
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Panel cutout size
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66mm dia
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86mm dia
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66mm dia
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66mm dia
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66mm dia
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92mm (W) x 92mm (H)
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Mounting details
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3 holes of 4mm on 75 pcd
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3 holes of 5mm at 96.5 pcd
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4 holes of 3mm at 63.5mm x 49.5mm
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4 holes of 3mm at 97mm x 73mm
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4 holes of 4mm at 112mm x 90mm
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Rear mounting bracket is provided.
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Inside depth
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30mm
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57.5mm
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39mm
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22mm
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35.5mm
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72mm
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Scale length
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48.5mm
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67mm
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59mm
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72mm
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93mm
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98mm
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Case material
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Bakelite
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Bakelite
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ABS
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Bakelite
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Bakelite
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ABS
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Accuracy
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± 2.5%
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± 2.5%
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± 2.5%
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± 1.5%
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± 1.5%
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± 1.5%
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Price for AC
meters (Rs.)
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220/-
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250/-
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250/-
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300/-
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350/-
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250/-
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Price
for DC meters (Rs.)
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300/-
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350/-
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350/-
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400/-
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450/-
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370/-
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Price for frequency
meter(Rs.)
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-
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-
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-
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-
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500/-
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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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