2468CB & 2468CD Dual Power Supply Version Hydrastep 2468CB and 2468CD Manual
2-22 24685034
2.5.2.3 ‘Switching Threshold’ Setting
WARNING Mains voltages are present in this instrument when power
is connected. De-energise before opening front cover.
1. Disconnect the power supply. Gain access to PCB 24680515 by opening the cover.
2. Check split pads SF1 & SP2 on the PCB are open circuit and clean (this is the normal
setting 0.6S/cm). See Figure 2.6 for details.
3. If the preferred setting is 1.6S/cm (i.e. low temperature), bridge the split pads SP1 &
SP2 with solder.
Figure 2.6- Split pads SP1, SP2, SP5 & SP6 locations and settings
2.5.2.4 ‘Compatibility’ Setting
The split pads SP5 and SP6 should be open when used with a 24680501C or 24680516B
input board. When used with a 24680501A, 24680501B or 24680516A input boards these
split pads should be made. With these older input cards the LEDs corresponding to an
‘electrode error’ will not alternate but remain steady.
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