KD Scientific 200 Series - Manual (Page 32)

28
KDS Model 200 Series
5 4
9 8 7 6
3 2 1
TTL Specifications
Pin
3 Vss , ground ref.
1,6 Controllable output with Programmable models could be used for relay or
valve control (low - infusing, high - refilling)
8 Trigger Falling edge starts /stops pump
eg. Footswitch
4 Gate Change from high to low - starts
when running stays low, change to high -
stops eg. footswitch, timer
2 Directional Output high - infuse, low - refill
(stays high when stopped)
5 Undefined Input or Output
7 Run Indicator high - running, low - stopped
9 Reverse Direction Normally high; connect to ground
(pin 3) reverses. Direction (only applies
to infuse/ withdraw mode)
logic low 0 - 0.5V, max 2ma current sink
logic high 2V - 5V
Fuses
The fuses are located, in the power entry module on the rear panel. The linecord must be
removed first to gain access to the fuse holder.
Fuse 5 x 20 mm, 250V~ slow blow, 0.25 A
Voltage Selector (CE version only)
If it is necessary to change the input voltage selection, discon-
nect 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 install. Close the access
door. The new input voltage selection should be visible through
the door window. Intall a proper line cord certified for the
country of use.
As viewed from rear of the pump.
Fuse holder