Teledyne 6020 Operating Instructions Manual page 87

Photometric Analyzer Maintenance 3
+15 VDC: Power Supply voltage fed to the photodetector preamplifier,
+15 VDC.
-15 VDC: Power Supply voltage fed to the photodetector preamplifier,
-15 VDC.
COM: Common reference to the +/- 15 VDC and the -230 VDC power
supplies.
SPAN FLTR: Span filter signal, AC voltage.
SPAN SOL: Span solenoid signal, AC voltage.
ZERO FLTR: Zero filter signal, AC voltage.
ZERO SOL: Zero solenoid signal, AC voltage.
Teledyne Analytical Instruments
Part II 3-9