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1) How difficult is it to install?

Anyone with a reasonable amount of mechanical skills can install the Digi-Panel in 2 - 3 hours. There are no coolant or transmission fluids to drain. The most difficult parts is removing the factory oil pressure sender, using a T, nipple, and if needed, reducer bushing to install the Digi-Panel's new sender.


2) Does the unit affect my factory gauges or computer?

The Digi-Panel is totally independent and redundant of a rig's systems. It is designed to provide audible and visual alarms, higher accuracy and speed for better driver awareness and protection.


3) How accurate is the Digi-Panel?

The temperature gauges are calibrated using a standard accurate to +/- 1 degree F, the voltmeter using a digital voltmeter accurate to +/- 0.05%, etc. See "Needle Gauges" for more information.


4) How does the heat on hot sunny day affect the unit if it's mounted on top of the dash?

The Digi-Panel  has an anodized aluminum case, rather that cheap plastic, and uses all CMOS integrated circuits to eliminate any problems related to ambient heat.


5) How do I turn it on?

The Digi-Panel's +12V lead is typically connected to a line  that is "hot" when the ignition is turned on, so it comes on automatically.


6) What can I do for an old 24 volt bus conversion?

All 24 volt systems have a 12 volt sub-system for radios and other accessories. Connecting the Digi-Panel to one of those lines will in effect monitor the 24 volt system, ie: @ half scale. As the 24 volt alternator output goes up and down, the 12 volt line changes proportionally.


7) My oil pressure gauge is very slow. How fast is this unit?

The oil pressure sender supplied with the Digi-Panel is guaranteed to go from 80 psi to 0 within 1 second. The Digi-Panel itself is basically instantaneous.


8) Why does my oil pressure gauge read almost the same all the time?

Some manufacturers use a simple pressure switch that typically operates @ 7 psi connected to a gauge so anything over 7 psi gives a "normal" reading, but it's equivalent to an idiot light. The smaller variations you see is caused by the changes in the charging system output. Oil pressures normally have large fluctuations as a function of engine rpm, temperature, mileage on the engine, etc.


9) Why doesn't the Digi-Panel measure engine coolant directly?

The number 1 reason is that by measuring at the thermostat housing, what is actually being measured is metal temperature. This normally varies somewhat around coolant temperature, but if a radiator or heater hose is ruptured, we still sense engine temperature. Coolant sensors cannot sense without the coolant and the engine is destroyed. Number 2 is that it makes for an easy installation.


10) Why does my voltmeter show 2 digits lit much of the time?

All the gauges are designed to "roll" from one digit to the next to increase resolution. However, the voltmeter measures alternator output. Alternators are actually 3-phase AC generators with diodes to convert to DC voltage. They produce pulses, most of which are filtered out by the battery. The remaining pulsations often causes a 2nd digit to light up. The Digi-Panel was designed with limited filtering so if, for example, one of the phases was lost, most commonly because a diode failed, the additional noise will cause 3 digits to light up all at the same time. This gives an advance warning before complete alternator failure.