PT300, Service Manual
Rev B, October, 2000
24
SIO (totalizing):
To test the totalizing function you will need 2 scales (one is the scale under test)
and a totalizing cable.
Put the scale under test into the master position, and the other scale in the
second position on the cable.
Scale under test
Slave
Leave any other cable
Disconnected
Figure 10 SIO Master Test
Turn both scales on. Wait until both scale go to a stable zero display. Insure that both
scales are in the totalizing mode, look for the bar next to TOT on the display. Press the
local/total key to turn on the bar if needed. Apply a load to the master scale. The same
weight should appear on the slave scale. If this test fails try pressing the print key.
The receiver must sense an open line condition to force a scale to become the master
scale. Pressing print will force an output anyway. This is useful in isolating between
an input and an output failure.
Summary of Contents for PT300
Page 1: ...I PT300 Service Manual A A Scales 1 813 994 3190 Fax 509 355 3498 www stainlessscales com...
Page 45: ...PT300 Service Manual Rev B October 2000 44 Appendix B Schematics...
Page 46: ...PT300 Service Manual Rev B October 2000 45...
Page 47: ...PT300 Service Manual Rev B October 2000 46...
Page 48: ...PT300 Service Manual Rev B October 2000 47 Totalizing cable...
Page 49: ...PT300 Service Manual Rev B October 2000 48 Charging Cable...
Page 50: ...PT300 Service Manual Rev B October 2000 49 Loadcell and Summing Board...
Page 51: ...PT300 Service Manual Rev B October 2000 50 Internal Cable Assembly...
Page 52: ...PT300 Service Manual Rev B October 2000 51 Parts...