Weston 10559 Vintage Amp Meter Missing Face Range 39088 - Used

Weston 10559 Vintage Amp Meter Missing Face Range 39088 - Used

PN: 10559

Weston
Model: 370

Vintage/Antique
Untested Sold As Is
Missing Face Range
Missing Screw
Some Surface Scratches

This Item Has Been Prepackaged And Stored At An Offsite Location So No Questions About Item Will Be Answered. (Regarding Condition/Features)

Amp Meter
Portable Standard
Alternating And Direct Current
Range: 2.5-5


This Instrument Is A Magnetically Shielded Electrodynamometer Ammeter And Indicates Absolute Amperes. It Was Standardized At Weston Laboratory At An Ambient Temperature Of 25°C (77°F) Using Direct Current, Taking The Mean Value Corresponding To The Two Directions Of Current Flow Through The Instrument.

Rated Accuracy: 0.25 Percent Of Full Scale Value Over The Last 60 Divisions And 0.009 Inch (0.17 Percent Of Full Scale Length) Over The Remaining Divisions.

External Temperature Influence: Less Than 0.2 Percent Of Full Scale Value For Ambient Temperatures From 15° To 35°C (59° To 95°F).

Frequency Influence: Negligible To 125 Hertz.

Sustained Operation Influence: Maximum Effect Less Than 0.2 Percent Of Full Scale Value Over A Period Of Six Hours.

External Filed Influence: Maximum Effect Less Than 0.15 Percent Of Full Scale Value In A Field Of 5 Oersteds.

Ampere Range 2.5/5
Approximate Resistance, Ohm 0.48/0.18
Approximate Inductance, Millihenry 0.588/0.147