Crystal ComboPump User manual

C R Y S T A L
engineering corporation
PN: 2909
9/2002
Page 1 of 4
ComboPump Instruction Sheet
Precision Pressure and Vacuum Hand Pump
Introduc-
tion
Thank you for purchasing a ComboPump. ComboPumps are
precision pressure and vacuum sources (depending on the
setting of the shuttle valve), that can be operated with one hand.
The built-in variable volume is pressure balanced, so it’s easy to
set the pressure precisely with just your fingertips, regardless of
how high the pressure is.
There are two pressure ports on top of the pump. Mount a
Digital Test Gauge or a 30 Series Pressure Calibrator directly on
top of the pump, connect the spare port directly to the device
being tested, and you have a complete field pressure calibra-
tion system.
All moving parts of the pump mechanism are protected from
damage and dirt. There are no exposed springs, piston rods,
etc. The body and handle are anodized aircraft grade
aluminum and all moving parts are high strength, corrosion-
proof plastics and metal. That’s why we are confident
your
ComboPump will provide many years of no-maintenance
service.
Specifications
Pressure Range:
PN: 2907 2000 kPa 20 bar 300 PSI
PN: 2908 3500 kPa 35 bar 500 PSI
Vacuum Range (Both models):
-85 kPa -0.85 bar -12.3 PSI -25″Hg
Connections
Two 1⁄8″Female National Pipe Thread (NPT )
Weight
605g (1 lb., 5.3 oz.)
Dimensions
24mm (H) x 5mm (W) x 5mm (D) (9.5″H x 2″W x2″D)
Introduction

PN: 2909
9/2002
Page 2 of 4 PRESSURE is Our BUSINESSTM
Operating Instructions
The ComboPump is only for use with pneumatic systems. Do not use the
ComboPump with liquids of any kind. For safe and reliable operation please spend a
few minutes reading the following instructions.
WARNING
To prevent damage to the pump and possible injury, never connect the
ComboPump to a pressure source greater than 3500 kPa (500 PSIG, 35 bar).
Turn off, or isolate, all pressure-generating equipment from the pressure tap prior to
connecting the ComboPump.
NOTE: The operating pressure rating is printed on the pump body label on the
opposite side of the vent knob.
Shuttle Valve
Pressure Ports
Vent Knob

C R Y S T A L
engineering corporation
PN: 2909
9/2002
Page 3 of 4
1. Your ComboPump has two 1⁄8″NPT male pipe thread pressure ports. Always use
PTFE (polytetrafluoroethylene) tape on the threads of any pressure fittings
installed into the ComboPump. DO NOT USE liquid pipe sealing compounds
(such as “pipe dope”). Be careful not to over-tighten fittings.
CAUTION: Your fittings must have a pneumatic pressure rating of at least
5000 kPa (750 PSIG, 50 bar).
2. Connect the ComboPump to your test set-up. Select whether you want PRES-
SURE MODE (up position) or VACUUM MODE (pressed down position). Make
certain the valve is fully UP or fully DOWN.
3. Close the VENT KNOB by turning it fully clockwise. Don’t overtighten - fingertight
is enough.
4. You are now ready to perform your pressure or vacuum calibration. Squeeze the
ComboPump handle until you are close to the desired calibration
pressure or vacuum.
5. To make pressure or vacuum adjustments turn the variable
volume adjustment knob (the bottom knob next to the squeeze
handle) to set the precise the pressure or vacuum desired.
6. After the test is complete open the VENT KNOB to completely
release pressure or vacuum. The vent knob can also be used
to slowly bleed the system by opening it only a slight amount
and closing it once the pressure or vacuum is reached.
NOTE: Be sure to close the vent knob fully once the
system is fully vented, to prevent the knob from vibrating
loose when transporting the pump.
The ComboPump is covered by a 1 year warranty
against pressures leaks and defects in materials or
workmanship (see page 4). This warranty does not
cover physical abuse or misuse.
Contact the factory for all repair needs, regardless if
the ComboPump is covered by the warranty or not!
Repair or replacement of any parts must be performed only by
the factory, or a factory authorized representative. Do not attempt to
substitute parts or the warranty will be voided and damage to the pump or
personal injury may result. Remember:
Your safety comes first! This is a high
pressure pump. Do not attempt your own repairs.
Variable Volume Knob

PN: 2909
9/2002
Page 4 of 4 PRESSURE is Our BUSINESSTM
Warranty
Crystal Engineering Corporation warrants the ComboPump to be free from defects in
material and workmanship under normal use and service for one (1) year from date of
purchase to the original purchaser. It does not apply when the product has been
misused, altered or damaged by accident or abnormal conditions of operation.
For in (or out) of warranty service, we can be reached at:
Phone .................... [phone]
Toll-Free ................ [phone]
Fax ......................... [phone]
Email ...................... [e-mail]
Web ....................... www.crystalengineering.net
If calling, have ready the model number, serial number, date of purchase and reason
for return. You will receive instructions for returning the device to Crystal Engineering.
Crystal Engineering will, at our option, repair or replace the defective device free of
charge and the device will be returned, transportation prepaid. However, if we
determine the failure was caused by misuse, alteration, accident or abnormal condi-
tion of operation, you will be billed for the repair.
CRYSTAL ENGINEERING CORPORATION MAKES NO WARRANTY OTHER THAN
THE LIMITED WARRANTY STATED ABOVE. ALL WARRANTIES, INCLUDING
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY
PARTICULAR PURPOSE, ARE LIMITED TO A PERIOD OF ONE (1) YEAR FROM
THE DATE OF PURCHASE. CRYSTAL ENGINEERING SHALL NOT BE LIABLE FOR
ANY SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES, WHETHER IN
CONTRACT, TORT OR OTHERWISE.
Note (USA only): Some states do not allow limitations of implied warranties or the
exclusion of incidental or consequential damages, so the above limitations or exclu-
sions may not apply to you. This warranty gives you specific legal rights and you may
have other rights which vary from state to state.
© 2002, Crystal Engineering Corporation
720 Aerovista Place, Suite B
San Luis Obispo, CA 93401-8701