Portable Standard Voltmeter (AC)

Technical Information

Catalogue No: C0781
Category: General Purpose
Object Type: Test Equipment
Object Name: Portable Standard Voltmeter (AC)
Part No: O.L. Moving Iron
Serial No: A13896
Manufacturer: Elliott Bros
Division: Unknown
Platform(s):
Year of Manufacture: 1934
Dimensions:
Width (mm):
200 
Height (mm):
100 
Depth (mm):
195 
Weight (g):
2,623 
Location: Archive Object Store
Inscription(s):

Portable Standard Voltmeter
Type O.L. Moving Iron
No. A13896
This instrument is calibrated in International Volts.
It is correct at 68°F and, if properly used, its readings may be relied upon to within B.S. substandard at 50~
Resistance of 250V range: 2900 ohms.
Temp. correction: Negligible
Elliott Brothers (London) Limited,
Century Works, Lewisham, S.E.13
Date 4th July 1934

Notes:

Manufactured by Elliott Brothers, Century Works, Lewisham. London SE13.

This instrument's moving-iron operation means the scale is non-linear with its first mark above zero being 20V, mid-scale being 150V and full-scale being 250V. The scale is marked with 5V minor and 10V major increments and has numerals at 20V, 50V, 100V, 150V, 200V & 250V.

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