Additel 938 Hydraulic Pressure Calibration Pump (oil-free) User Manual - Manual

Warnings and cautions
Specification
Views and Hydraulic Schematic
Troubleshooting
Hydraulic Schematic
Hydraulic High Pressure Test Pump User's Manual
1- Vent valve
2- Over-flow reservoir
3- Quick connector
4- Reservoir cover vent valve
5- Reservoir
[Version number:1407V02]
936/937/938
It is difficult to generate
pressure with the
pre-pressure
handle (#9)
4
6
1 3 2
7
8
9
5
6- Liquid drain valve
7- Pre-pressure shut off valve
(Isolates the calibration volume from the
pre-pressure side of the pump)
8- High-pressure and fine pressure
adjustment handle
9- Pre-pressure handle
Temperature: （5 ~ 50）℃
Problem Cause Solution
It is difficult to
pressurize by turning
the high-pressure
handle (#8)
Hard to turn the
valves or handles
Hard to pressurize
large-volume DUT
Pressure media:
ADT936: Diethylhexyl Sebacate
ADT938: Deionized water
ADT937 ：Oil,compatible to phosphoric acid ester fluid and Skydrol oil.
Pressure range: 12.5 psi ( 0.85 bar ) vacuum to
15,000 psi ( 1000 bar ) positive pressure
Weight: 35.5 lb ( 16 kg )
Adjustment resolution: 0.015 psi ( 1 mbar )
Safety pressure: <18,000 psi (1,200 bar)
Size: Height: 10.43'' ( 265 mm )
Base: 20.71'' ( 526 mm ) x 9.65'' ( 245 mm )
1 7
9 8
5
It is difficult to generate
high vacuum
Close vent valve (#1)
Open pre-pressure shut off valve (#7). Caution: the pre-pressure side of the pump should not be exposed to
more than 10,000 psi (700 bar).
Purge the air from the system (see purge section of the manual)
Close pre-pressurization shut off valve (#7)
Replace with a new O-ring
Use proper adapter
Open the #4 valve
Open the #4 valve
This is normal. Close the pre-pressure shut off valve (#7) and use the high-pressure handle to adjust the
pressure.
Replace with a new O-ring
Fill more media, and keep media level between 1/4 and 3/4 of the liquid reservoir filled
Close pre-pressure shut off valve and use high-pressure and handle (#8).
Check finger-tight connectors, re-tight if necessary
Use a PTFE washer in finger-tight connector
Purge the air from the system (see purge section of the manual)
Step 1: Turn pre-pressure handle (#9) all the way in clockwise, close pre-pressure shut off valve (#7),
open vent valve (#1).
Step 2: Turn pre-pressure handle (#9) all the way counterclockwise, close vent valve (#1).
Step 3: Open pre-pressure shut off valve (#7), pressurize the system.
Step 4: Repeat step 1 to 3.
Do not over tighten
Lubricate the threads
Pressure gauges do not
reach to zero
Remark： If local atmosphere pressure is 1 bar, the vacuum can reach to 0.85 bar;
If local atmosphere pressure is P, the vacuum can reach to bar. ( P 85% )
Operate the pump in the rated pressure range of 15,000 psi (1,000 bar)
and do not exceed the safety pressure of 18,000 psi (1,200 bar).
When the ystem ressure s reater han 10,000 psi you must close the
pre ressurization hut ff alve 7 and then pressurize he system with
the high pressure handle.
Close all valves and handles and tighten the ports when transporting the pump.
Always keep the reservoir cover vent valve #4 open during operation.
Do not over tighten the valves, connectors and handles to avoid damage.
Change media immediately if it is contaminated.
Keep media level between 1/4 and 3/4 of the liquid reservoir filled.
Keep the threads clean and lubricious, and remove any dirt on threads.
Used by trained personnel only.
Additel is not liable for any safety problems or damages caused by misuse
or incorrect operation.
s p i g t ,
-p s o v （# ） t
） （
Vent (#1) is not closed
Pre-pressure shut off valve (#7) is closed
Too much air is in the pump (see purge section of the manual)
The pre-pressure shut off valve (#7) is not closed completely
The O-ring in quick connector is missing, , or broken
The connector of the DUT is not matched to quick connector
misplaced
#4 valve is not open
#4 valve is not open
Hard to turn pre-pressure handle (#9) at high pressure
The O-ring in quick connector is missing, misplaced, or broken
Not enough media is in the reservoir.
Max pressure generation (could be as low as 5,000 psi, 350 bar) is
achieved with the pre-pressure handle (#9)
Reference gauge or devices under test (DUTs) are not connected tightly
The end surface of the DUT connection thread is not smooth
Purge the air from the system (see purge section of the manual)
Because of the large volume of the DUT, it will take additional steps to
fill the volume to pressurize the DUT
Too much force was previously applied
Lack of lubrication on threads