4700 Refrigerated Sampler Service Guide
Section 2 Sample Delivery System
2-9
2.3.5 Recent Changes to the
Pump
The old 4700 power supply has been replaced by a new, more
powerful power supply. The pump assembly has been redesigned
to take advantage of this feature, eliminating the need to "break
in" the tubing before operation. Older units will not require mod-
ification.
The chart below lists the part numbers of the old and new pumps
and power supplies, and the sampler serial numbers corre-
sponding to the changes.
CAUTION
Although the old pump will work with the new power supply, the
n ew p u m p w i l l N OT wo r k w i t h t h e o l d p owe r s u p p l y,
69-4704-010. Do not install the new pump without ensuring
that the sampler also has the new power supply.
See Section 4.5.1 for additional information about the power
supply.
Power Supply
69-4704-010
(Old)
(no longer available)
60-4704-040
(New)
120V, beginning with
Serial #207H02221
60-4704-062
(New)
230V, beginning with
Serial #207L00043
Pump Assembly
60-4704-030
(Old)
120V and 230V, older
models
60-4704-128
(New)
120V, beginning with
Serial #207K01237
230V, beginning with
Serial #207L00043
Содержание 4700
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Страница 124: ...4700 Refrigerated Sampler Service Guide Appendix A Electrical Diagrams A 2 ...
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