Electronics International VA-1A - Specifications and Operating Features; Product Models and Weight; Power and Display Details; Resolution and Accuracy Metrics

Specifications and Operating FeaturesSpecifications and Operating Features
Specifications and Operating FeaturesSpecifications and Operating Features
Specifications and Operating Features
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Model:Model:
Model:Model:
Model: VA-1A and VA-1A-XX
Weight:Weight:
Weight:Weight:
Weight: VA-1A ; 9 oz., VA-1A-XX ; 7.5 oz., S-50 (100 amp Shunt) ; 3 oz., S-300 (300 amp Shunt) ;
12 oz., RSVA-3 (External Select Switch) ; 3.5 oz.
Power Requirements:Power Requirements:
Power Requirements:Power Requirements:
Power Requirements: 7 to 40 volts, 2/10 AMP.
Display:Display:
Display:Display:
Display: 0.35" high resolution LCD display (viewable in direct sunlight). 12 and 24-volt backlight
wires are provided for night operation.
Resolution: Resolution:
Resolution: Resolution:
Resolution: VA-1A and VA-1A-XX (60 amps and below) resolve amperage to 0.1 amps. VA-1A-XX
(above 60 amps) resolves amperage to 1 amps. All units resolve voltage to 0.1 volts.
Accuracy:Accuracy:
Accuracy:Accuracy:
Accuracy: 1% of reading plus or minus one count (Amps and Volts).
Discharge Warning Light:Discharge Warning Light:
Discharge Warning Light:Discharge Warning Light:
Discharge Warning Light: For a 12-volt system, the light will be on for bus voltages below 12.8
volts (+/- 0.2 volts). For a 24-volt system, the light will be on for bus voltages below 25.6 volts (+/- 0.4
volts). The signal is sensed off the red lead.
High Volts Light:High Volts Light:
High Volts Light:High Volts Light:
High Volts Light: For a 12-volt system, the light will be on for bus voltages above 15.4 volts (+/- 0.3
volts). For a 24-volt system, the light will be on for bus voltages above 30.8 volts (+/- 0.6 volts). The
signal is sensed off the red lead.
12/24 Volt Select Switch:12/24 Volt Select Switch:
12/24 Volt Select Switch:12/24 Volt Select Switch:
12/24 Volt Select Switch: A select switch is available on the back of the unit to configure the unit
for a 12 or 24-volt electrical system.
VA-1A Configuration: VA-1A Configuration:
VA-1A Configuration: VA-1A Configuration:
VA-1A Configuration: Contains an internal shunt for measuring currents to 100 amps and voltages
to 40 volts.
V
A-1A-XX Configuration: A-1A-XX Configuration:
A-1A-XX Configuration: A-1A-XX Configuration:
A-1A-XX Configuration: This unit must be matched to the aircraft’s external shunt (i.e., 100
amp, 50 mV external shunt must use a VA-1A-100).
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