Veris Technologies MSP EC and pH (1997-2008 CF card drive 1.10M) - Operating Instructions - Manual (Page 51)

Veris Technologies
Pub. #OM MSP03-1
51
If voltage at power connector drops below 12 volts during this test:
a) clean battery terminals
b) check disconnect contacts
c) hook power leads directly to battery
—not through tractor power port
d) charge battery
4. Check voltage at power cable (Figure 4). If 12V at cable but not on circuit board
—call Veris
Service Dept.
Figure 4: Using voltmeter to check voltage at power supply cable
Procedure #2: Trouble-shooting Sampler Cylinder Hydraulics
The Veris pH module uses electro-hydraulics to perform the cycling functions. If the sampling shoe
hydraulic cylinder is not functioning properly, the cause of the problem must be traced to either the
electronic or the hydraulic side. This Procedure will guide you through the steps necessary to identify
the problem when the sampler cylinder in manual mode is not moving or only moves in one direction.
An overview of this procedure is shown in Figure1. (Erratic movement or cycling problems in
automatic mode are addressed in Procedure #1.)