Service manual

MDS E-SCAN MONITOR DIAGNOSTIC VOLTAGES SELECTION
50
U2 Meas:
The voltage produced when measuring a solution sample. It is used by MPR E-Scan unit 2 to
obtain an interpolated value from the calibration table that will reflect an accurate displayed
Solids reading.
U2 Temp:
A voltage that produces the process temperature readout on MPR E-Scan unit 2 as follows:
(Voltage - .5v) * 50 = Deg. C.
U2 Lamp:
A nominal voltage needed to maintain a signal of proper amplitude for MPR E-Scan unit 2 light
source.
U2 0-10:
An interpolated voltage based on MPR E-Scan unit 2 Meas. Anlg. Min. and Meas. Anlg. Max.
Output limits.
U2 +5:
MPR E-Scan unit 2 power supply. The +5 volt supply line has a +/- .5 volt tolerance.
U2 +15:
MPR E-Scan unit 2 power supply. The +15 volt supply line has a +/- 1.5 volt tolerance.
U2 -15:
MPR E-Scan unit 2 power supply. The -15 volt supply line has a +/- 1.5 volt tolerance.
MDS +15:
Monitor power supply. The +15 volt supply line has a +/- 1.5 volt tolerance.
MDS -15:
Monitor power supply. The -15 volt supply line has a +/- 1.5 volt tolerance.