OPG1™ Operation and Maintenance Manual
©2000
DH Instruments, Inc
.
Page
28
OPG1 is a sophisticated pressure generation and adjusting instrument with advanced features
and functions. Before assuming that unexpected behavior is caused by a system defect or
breakdown, use this manual and other training facilities to become thoroughly familiar with
OPG1 operation. For rapid troubleshooting assistance in specific situations, see Section 5.
Standard, commercial OPG1s are covered by a limited 1 year warranty (see Section 6.1).
OPG1-30000-AFs delivered under F33660-99-C7003 are covered by a limited, 5 year
worldwide warranty. The warranty start and finished dates are marked on each unit.
Unauthorized service or repair during the warranty period is undertaken at the owner's risk and
may cause damage that is NOT covered under the product warranty and/or may void the
product warranty.
4.2
FILLING THE TANK
The oil level in the OPG1 tank should be maintained at all times. Opening the
INLET valve
and
operating the hydropneumatic pump when the tank is empty will cause the pump to draw air and lose
its prime.
To fill the oil tank, proceed as follows (numerical references refer to Figure 9):
Unscrew the tank cover/oil fill funnel (2) until a gap for oil passage can be seen between the
TEST port shaft (1) and the cover.
Using the tank cover as a funnel, pour oil into the tank to just under the top of the overflow
tube (3). DO NOT bring the oil level in the tank above the top of the overflow tube.
Leave the tank cover open to allow oil to drain from the cover into the tank when swapping DUTs
and to allow air to escape from the tank when venting oil back into the tank.
Figure 9.
Oil Tank
1.
TEST Port
2.
Tank Cover/Oil Fill Funnel (screws off)
3.
Oil Return Overflow Tube (oil return)
4.
Pump Draw (oil outlet)