WPI UltraMicroPump II Instruction Manual page 23

will activate. the way to run multiple lines is to run them grouped or run them
by separate commands after the line number is changed to that channel. the
channels in this latter case are completely independent from each other (non-
grouped).
Incorrect Volume Dispensed
the amount of volume actually dispensed was what was programmed in on a prior
programmed instance. to correct this, reset the counter, specify the c parameter
as "C0.0;" with the Volume and rate on a separate command line, just before
issuing the G (go) command.
RS232 Cable Pinouts
to control the micro4 by computer, the rs232 cable must be configured as shown
here:
Mini-DIN connector
on rear panel of
4
Micro4 controller
5
micro4 cable with 9- 6
pin connector is WPi
#40500.
Footswitch Connections
since the footswitch produces run and stop signals by connecting +5 volts (from
pin 4) to pin 6, this port may also be used for ttl signals from other sources.
World Precision instruments
Signal
Ground
1
2
umc data in
3
umc data out
run/ stop
+5V pull up
UltraMicroPump II
Micro4 9-Pin
Mini-DIN D-sub
1 5
2 3
5 2
4 -
6 -
25-Pin
D-sub
7
2
3
-
-
21