Specifications

116
Alcohol Fuel Cell Sensor Output
Input Sample
Reference Voltage
ADC Output
(1.46 mv/step)
BAC Equivalent Value
Dry Gas (.04 BAC)
1.5V
62
0.041333
Dry Gas (.04 BAC)
1.5V
60
0.04
Dry Gas (.04 BAC)
1.5V
65
0.043333
1 Beer
1.5V
35
0.0234
Mouth Wash
1.5V
90
0.06
Table 5.2.2-1 Alcohol Sensor test data
5.2.3 Verifying Enclosure
Verifying the enclosure will be a fairly subjective process. The size verification
will be done using a ruler, and the overall verification will be done after installing
all components into the housing. If successful, the housing should be able to
close securely, without upsetting any components inside. The circuit should
remain functional, and the user should not be subject to any current or excessive
heat from the circuit.
Environmental testing will take place by subjecting the housing to cold
temperatures and then placing it in a warmer temperature, and verifying that the
housing does not suffer any structural damage, such as cracks or discoloration
indicating structural weakness. It must also undergo basic testing, such as
knocking against a hard surface and a basic drop test from 3-4” onto a hard
surface. If successful, the housing should still be in a single piece, without any
significant structural damage.
5.2.4 Verifying Display
First, the display must be connected to power. At this point, ensure that the
display is receiving power by monitoring whether there is any response from the
display, such as the backlight turning on or any status LEDs on the control board
that have become active. If there is no control board, use a multimeter in series
with the supply voltage line to measure any current flowing to the board.
If this is successful, the display should be disconnected from power, and
connected to a microcontroller or microprocessor, utilizing the application circuit
specified by Newhaven Display. After successfully interfacing, the display can be
powered up. At this point, an initialization message must be sent to the screen in