Instron 1000KPX-J3, Руководство по концепции системы

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Chapter 3: Additional System Details
44 M47-17036-EN
Screen trapper
A tightly meshed screen trapper is placed in the reservoir’s fill hole. This screen prevents larger debris
from entering the reservoir when it is filled. Maintenance of the screen trapper should be done anytime
oil is added to the reservoir, refer to maintenance information provided in the System Operating
Instructions (supplied separately).
Oil temperature/level switch
A temperature/level switch is mounted in the reservoir that monitors the temperature and the level of the
oil. The switch will trip at either an oil temperature of 70 +/-6 deg. C (158 +/-10 deg. F) or an oil level
lower than 184 mm (7.25 in) from the top of the reservoir. This distance is below the bottom of the sight
gauge but above the opening in the suction pipe. If the switch is tripped from either condition, the system
controls will shut off the HPS. This prevents the oil temperature from exceeding the recommended
maximum temperature and prevents the HPS from operating with a low oil level. The controlling software
will indicate a “Motor Temp” error, no matter which condition tripped the switch. Refer to
Problem
No. 11 of Table 9 on page 47 .
Pump and motor
An electric motor is used to operate the pump that forces oil from the reservoir, through the high pressure
hydraulic hoses and into the hydraulic cylinder. As the controller directs the frame to place load on a
specimen, the HPS builds pressure in the system and the piston is actuated inside the hydraulic cylinder.
Some pump and motor information is listed in
Table 7 .
The pump is equipped with a flow control adjustment that controls the system idle pressure. Idle
pressure is the pressure of the HPS when it is operating under no load conditions (i.e. when the frame is
not being adjusted or performing a test). This flow control adjustment is set at the factory and should not
require further adjustment. Any adjustments should only be made by an Instron service engineer.
For pump and motor maintenance, refer to the separately supplied manufacturer’s information.
Table 7. HPS information.
HPS Catalog Number
and Model
Required Flow at
Maximum Testing Speed Idle Pressure
System Relief
Pressure
Motor
Power
600KPX-D17, V22h Dependent on the frame’s load cell option, see below.
with L1 load cell option 10.30 Lpm (2.72 gpm) 21 bar (300 psi) 110 bar (1600 psi) 10 hp
with L2 load cell option 10.30 Lpm (2.72 gpm) 21 bar (300 psi) 138 bar (2000 psi) 10 hp
with L3 load cell option 10.30 Lpm (2.72 gpm) 21 bar (300 psi) 193 bar (2800 psi) 10 hp
1000KPX-D18, V22e 14.84 Lpm (3.92 gpm) 21 bar (300 psi) 179 bar (2600 psi) 10 hp
1500KPX-D18, V22e 20.18 Lpm (5.33 gpm) 21 bar (300 psi) 207 bar (3000 psi) 10 hp
2000KPX-D19, V22f 26.35 Lpm (6.96 gpm) 21 bar (300 psi) 207 bar (3000 psi) 15 hp