KD Scientific 100 Series - Manual (Page 13)

11
KDS Model 100 Series
Manual Stall Setting and Microliter Syringes
A movable collar, located on the rear guide rod, can be set to restrict travel of the pusher
block. The block moves until stalling against the collar. Stalling does no permanent damage
but may result in increased wear on the drive mechanism and should not be used routinely
but only as a "fail safe" device.
Microliter syringes with fine wire plungers can be damaged if the plunger is forced into the
end of the syringe barrel; the collar can be adjusted to prevent this occurrence.
NV Ram Failure
If the settings in the non-volatile memory become corrupted the display will read "NV Ram
Failure" and the pump will not operate.
To recover from this condition, the pump must be powered down and then turned on again.
The pump will be re-initialized to the default settings and can now be programmed as
normal.
A second method of clearing the “NV Ram Failure” is to press select and then enter a
changed rate setting.
Fuses
The fuses are located in the power entry module on the rear panel.
The linecord must be first removed to gain access to the fuse holder.
Fuses 5x20mm, 250V~ slow blow, 0.1A
Voltage Selector (CE version only)
If it is necessary to change the input voltage selection, disconnect the line cord from the entry
module on the rear panel. Use a flat bladed screwdriver to open the Fuse Holder access
door. Remove the Fuse Holder, flip over, and reinstall. Close the access door. The new input
voltage selection should be visible through the door window. Install a proper line cord certi-
fied for the country of use.
Maintenance
Maintenance is required only for the moving mechanical parts, which should be kept clean
and lubricated. Occasionally, a small amoun of light machine oil should be applied to the
guide rods and a small amount of grease or oil to the leadscrew.
Solvents of any type should never be used to clean the pump. A mild detergent solution may
be used to clean the keypad.
Fuse Holder