Davtron M450 Series Digital Voltmeter
General Description
Davtron M450 Series Digital Voltmeter is a small lightweight instrument that monitors the voltage of your aircraft precisely. The pilot can more accurately know the amount of capacity remaining in the battery when there is a low voltage condition. Also of great importance is the voltage at which the battery is being charged. Overcharging can lead to excessive water loss and battery failure. Model 450 is an extremely useful instrument which helps the pilot get better and more reliable service from the electrical system.
Features
• Minimum panel space• Lightweight
• Automatic dimming
• LED display
• Operates from 14 to 28 volts
• Low Voltage Alarm
• Engraved Faceplate
Specifications
• Range: 8 volts to 32 volts• Input current: 150 M.A.
• Resolution: .1 volt
• Weight: 3 oz.
• Complete with cable and connector
• Operating temperature: –20° to +60°C
• Accuracy: ±1% of full scale
• Warranty: one year
• Unit default alarm set to flash 11v or below
• R3 & R4 located on back board
• R3 & R4 located on back board
• Alarm off/1.5 ohm resistor on R3
• Alarm 20v or less/1.5 ohm resistor on R4
About Davtron
Davtron's design and manufacturing of avionics instruments began in the late 1960s when digital technology was just beginning. Dave Torresdal, a young pilot in Redwood City, California had an idea for a better way to tune an ADF indicator. He designed, engineered, and flight tested a digital indicator in his 1958 Commanche, and soon other local pilots were clamoring to buy one. Dave's second product was the 811B digital clock which has sold over 40,000 units worldwide and is still in production today.
