Watson-Marlow 505Di - Manual (Page 7)

7
A Anticlockwise
C Clockwise
ssss Four character speed field in tenths of an rpm in the range of 0001 to 2200 with leading and trailing zeros to form a
fixed size field. The maximum speed is dependant upon the type of pumphead used or tubing which is fitted in the
pumphead. e.g. 195 rpm is programmed as 1950
S Start ramp value.. Characters '0' to '5' ( '0' = none '5' = maximum)
E End ramp value.. Characters '0' to '5' ('0' = none '5' = maximum)
D Drip value.. Characters '0' to '5' ('0' = none '5' = maximum)
Characters outside the range specified in the fields, or omission of any fields or parts thereof cause the whole document
to be discarded. An error message is issued on the screen of the pump.
The dose size, ramps and drip values issued by this command overwrite the internal values, normally accessed by the
SETUP screen.
The issuing of this command, resets the internal motor overrun value to its nominal setting if the speed changes. Thus
typically four doses are required to enable the pump to converge onto the average overrun value, thus increasing the
accuracy of the dose.
This command always resets the batch count. See the Report Batch Count command 'nnSC'.
Query dose
The syntax of the command to verify the loading of a dose is:
nnPD?
This elicits the response:
dddddKRssssSED !
where field definitions are given in Program Dose Command.
Note that the dose size after scaling is held internal in millimetres. Thus if a dose size of 0.895m is programmed, the
response will be 895.0µ (i.e. 895 microlitres). Dose sizes in excess of 999ml will be reported in litres.
Clear batch count
The syntax of the command to clear the batch count is:
nnCC?
This command does not elicit a response. It clears the batch count without affecting any other pump parameters. See
the Report Batch Count command 'nnSC'.
Show batch count
This syntax of the command to view the batch count is:
nnSC
This elicits the response:
ccccc !
where ccccc is a five digit decimal field in the range 00000 to 99999.
This consists of the number of complete doses delivered since the last program dose command. The dose may be
initiated with either a Run program 'nnRP' or a footswitch press.
Run program
The syntax of the command to repeat a dose, either in tacho pulses or dose size is:
nnRP
This command does not elicit a response. When the dose has been delivered the batch count is incremented. This is
primarily designed for use with the Program Dose command, 'nnPDxxx…xx'.
It will cause a dose specified in tacho pulses ('nnDIxxx' or 'nnDOxxx' commands) to be repeated.
Please note
The default program dose is 5.0ml, Clockwise, 220.0rpm, Start ramp = 2. No End ramp or Drip value.
Doses specified by the 'nnDI' or 'nnDO' can be repeated using the footswitch or the 'nnRP' command.
Changing, incrementing or decrementing the motor speed using the 'nnSPxxx', 'nnSI' or 'nnSD' commands reset the
motor overrun value to its nominal value.