Veris-technologies MSP EC and pH (1997-2008 floppy disk drive 1.02E) Manuel d'utilisateur télécharger pdf (Page 52)

Veris Technologies

Pub. #OM MSP03-1

Figure 2. External Controller circuit board (metal cover removed)

2. Turn off power to External Controller, remove clear lid and remove and replace any fuse that

has failed.

3. Check voltage with a digital voltmeter at power supply connection

All functions must be engaged during this test. In manual mode turn on wash pumps and cycle

sampler shoe hydraulics while holding voltmeter leads on power supply connector shown in Figure 3.

Keep moisture from entering External Controller. It may be necessary to reposition the spray nozzles

or shield the overspray from the Controller. It is critical that the pumps are under full load (pumping

water through the nozzles) during this test. Be careful to not let your fingers or voltmeter leads touch

any other component inside the External Controller.

POWER (12V)

FUSE 1 (10A)

and its LED

FUSE 2 (250

mA) and its LED

12V C 5V

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Veris-technologies MSP EC and pH (1997-2008 floppy disk drive 1.02E) Manuel d'utilisateur Page 52