Analog Signals; Analog And Other Input Signals - Bayer HealthCare RapidPoint 400 Series Service Manual

Analog Signals

Analog and Other Input Signals

Input Signal
DAC_HI
DAC_LO
VREF
+12_VDC_PM
-12_VDC_PM
12_RET_PM
+5_VDC_PM
5_RET_PM
HCT1_SIG
HCT2_SIG
PO2_SIG
GLU_A_SIG
GLU_B_SIG
LAC_A_SIG
LAC_B_SIG
CRE_A_SIG
CRE_B_SIG
HCO3_SIG
PH_SIG
Rev. C
Description
The 12-bit binary D/A signal from the DAS circuitry.
Signal return line for the DAC signal.
+5 V measurement system voltage reference from the DAS
circuitry.
+12 VDC from the DAS circuitry. See the Digital Signals
section for details.
-12 VDC from the DAS circuitry. See the Digital Signals
section for details.
12 VDC ground return from the DAS circuitry. See the Digital
Signals section for details.
+5 VDC from the DAS circuitry. See the Digital Signals
section for details.
5 VDC ground return from the DAS circuitry. See the Digital
Signals section for details.
Output of the first hematocrit circuit. This signal originates on
the Contact board and passes through the Multiplexer board
on its way to the DAS circuitry.
Output of the second hematocrit circuit. This signal
originates on the Contact board and passes through the
Multiplexer board on its way to the DAS circuitry.
Amplified and buffered pO
Amplified and buffered signal from the glucose inactive
electrode.
Amplified and buffered signal from the glucose active
electrode.
Signal is not used.
Signal is not used.
Signal is not used.
Signal is not used.
Amplified and buffered HCO
Amplified and buffered pH sensor signal.
signal.
2
sensor signal.
3
Electronic System Overview 103
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