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 All Categories    Horizon Line - Taut Band 251 - AC Ammeter Configurator - Yokogawa
Weschler Instruments is a manufacturer and distributor of electrical and electronic measurement equipment. Customers worldwide use our products in power plants, steel mills, chemical plants, paper mills and other industrial applications that require rugged, reliable and accurate instrumentation.
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Horizon Line - Taut Band 251 - AC Ammeter Configurator - Yokogawa


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Horizon-AC-Ammeter-11

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 Horizon Line Overview  

Accuracy

AC rectifier type; ±3% of full scale (with SO Hz sine wave at 25° C)
All DC and AC iron-vane: ±2% of full-scale

ANSI Specification

All meters meet ANSI Specifications C-39.1

Overload

Ammeters (AC and DC) momentary: 10 times the rated current for 10 consecutive intervals of, 5 second with a 1 minute interval between successive applications; sustained: 20% for six hours
Voltmeters (AC and DC) - 50% momentary, 20% sustained

Scale Data

90º rotation

Scale Length

SizeLength
1 1/2"1.50"
2 1/2"2.06"
3 1/2"2.88"
4 1/2"3.93"

Insulation Level

1 1/2" -1500 VRMS Hi-pot
All meters (except 1 1/2") 2600 VRMS Hi-pot

Burden Data

AC ammeter-5 amps, 0.5 VA max. 0.5 power-factor lagging, @60 Hz
AC Voltmeter-unity power factor

Response Time

2.5 seconds (max.) for AC ratings
3 seconds (max.) for 2 1/2", 3 1/2", 4 1/2" size
for microammeters: 2 seconds (max.) for all other DC ratings

Overshoot

Max. of 40%


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