Table of Contents
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Section 1: Introduction
1-2
Standard user controls consist of a measure button and a check-battery button.
The measure button signals the power control circuit to switch on the power
supply. The power supply then provides regulated power to the unit. Once power
is on, both the measure and check battery buttons are read by the CPU for user
commands.
The N-20PA printer provides a hard copy of acquired patient measurements.
The printer circuit includes three user control buttons: ON (on/off), ADV
(advance), and D/D (day/date). In addition, an ambient temperature sensor is
used with the battery voltage input to control printout quality.
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