Dwyer PWD - Manual (Page 3)

Setting Examples
The four numbered rotary switches marked "1000", "100",
"10", and "1" control the ratio of meter pulses to pump
strokes. Before setting the switches, disconnect power
to the unit by removing the connector from the pump or
unplugging the power adapter.
Problem Probable cause
tRoUBLESHootInG
try...
SEttInG
Metering pump not stroking
Meter dials not turning Check visually, then check for
adequate flow
Meter pickup not working Remove from meter, check with a
magnet
Pump connector not plugged in all the way Check or tighten threaded locking
ring (LMI)
Pump doesn’t supply power to the PWD Check pump manual, add power
supply
PWD set to large number or all zeroes Check rotary switches, esp. for
leading zeroes
Pump strokes continually Pump not set for external pacing Check pump manual and selector
switch
Pump doesn’t stroke often enough PWD set for wrong number Review setting on this page, check
or too often rotary switches
Multiple contacts from meter Set PWD to 1 contact/pump stroke
(0001) and see if the pump strokes
once for each magnet revolution
Meter ordered with wrong pulse rate Check meter model/serial tag
To set any four-digit number, rotate the dials to the appropri-
ate numbers. For example, to set 1521, set the four switches
to "1", "5", "2", and "1". Any unused switches should be set to
zero. For example, to set 8, position the dials to "0", "0", "0",
"8". See samples below.
Page 4 Page 5 PL-OM-65200393-082012
8/20/12
Dwyer Instruments, Inc. • 102 Indiana Highway 212 • Michigan City, IN 46360 • USA
(P) 219.879.8868 • (F) 219.872.9057 • 1.800.872.9141 • www.dwyer-inst.com
WARRAntY/REtURn
Refer to "Terms and Conditions of Sale" in our catalog or on
our website. Contact customer service to receive a Returns
Goods Authorization number before shipping your product
back for repair. Be sure to include a brief description of the
problem plus any relevant applciation notes.