GE Druck PV 622 User manual

GE
Sensing & Inspection Technologies
Druck PV 62x
pneumatic/hydraulic pressure stations
user manual - K0457

Issue 1
ii
Quick reference data
Copyright © 2008 General Electric Company. All rights reserved.
Trademarks All product names are trademarks of their respective
companies.
A1.1
PV 621: Pneumatic pressure station
-950 mbar to 20 bar (-13.5 to 300 psi)
PV 622: Pneumatic pressure station
-950 mbar to 100 bar (-13.5 to 1500 psi)
PV 623: Hydraulic pressure station
0 to 1000 bar (0 to 15000 psi)
A1.2 PV 62x + DPI 620 + PM 620
Recommended pressure modules (PM 620) *
PV 621 models 25 mbar to 20 bar (0.36 to 300 psi)
PV 622 models 25 mbar to 100 bar (0.36 to 1500 psi)
PV 623 models 70 to 1000 bar (1000 to 15000 psi)
*Caution: To prevent damage to the PM 620 module, only use it
within the specified pressure limit on the label.
A1.3 PV 62x pressure relief valves (PRV)
(Recommended options)
Parts: IO620-PRV-P1 to P5 (Pneumatic)
PV 621 models 1 to 30 bar (14.5 to 435 psi)
PV 622 models 1 to 100 bar (14.5 to 1500 psi)
Parts: IO620-PRV-H1 to H5 (Hydraulic)
PV 623 models 50 to 1000 bar (725 to 15000 psi)

[EN] English - K0457 Safety iii
Issue 1
Safety Before you use the instrument, make sure that you read and
understand all the related data. This includes: the applicable
local safety procedures, this publication, and the instructions
for the accessories/options/equipment you are using it with.
General warnings WARNING
•It is dangerous to ignore the specified limits for the
instrument or to use the instrument when it is not in its
normal condition. Use the applicable protection and
obey all safety precautions.
•Do not use the instrument in locations with explosive
gas, vapour or dust. There is a risk of an explosion.
Pressure warnings • It is dangerous to attach an external source of pressure
to a PV 62x series pressure station. Use only the
internal mechanisms to set and control the pressure in
the pressure station.
•Some liquid and gas mixtures are dangerous. This
includes mixtures that occur because of contamination.
Make sure that the equipment is safe to use with the
necessary media.
•Pressurized gases and fluids are dangerous. Before you
attach or disconnect pressure equipment, safely release
all the pressure.
•To prevent a dangerous release of pressure, make sure
that all the related pipes, hoses and equipment have the
correct pressure rating, are safe to use and are
correctly attached.
Electrical warnings If you use the DPI 620 calibrator with your pressure station,
these warnings are also applicable:
•To prevent electrical shocks or damage to the DPI 620
calibrator, do not connect more than 30V between the
terminals, or between the terminals and the ground
(earth).
•This instrument uses a Lithium-Polymer (Li-Polymer)
battery pack. To prevent an explosion or fire, do not
short circuit, do not disassemble, keep it safe from
damage.
Continued

Issue 1
iv Safety K0457 - [EN] English
•To prevent an explosion or fire, use only the GE
specified battery, power supply and battery charger.
•To make sure the display shows the correct data,
disconnect the test leads before you set the power to on
or change to another measure or source function.
Cautions To prevent damage to the instrument, do not let dirt get
into the pressure mechanism. Before you attach
equipment, make sure it is clean.
To prevent damage to the instrument when you move it,
hold the body of the pressure station or use the carry
strap (or specified accessories).
PV 621/PV 622 models only. Before you turn the
pressure/vacuum selector to + or -, release all the
pressure. Sudden high pressure in the pump
mechanism can cause damage.
PV 623 models only. Ice in the pressure mechanism can
cause damage. If the temperature is less than 4°C
(39°F), drain all water from the instrument.
In its normal condition, the PV 623 model contains
hydraulic fluid. To make sure it does not spill out, seal
the system and put it on its side before you install a
PRV.
To prevent damage to the PM 620 module, only use it
within the specified pressure limit on the label.
Before you start an operation or procedure in this publication,
make sure that you have the necessary skills (if necessary,with
qualifications from an approved training establishment). Follow
good engineering practice at all times.
Marks and symbols
on the instrument Complies with European Union directives
Read the manual Warning - refer to the
manual
PRV Pressure relief valve (Refer to Chapter 1; item )
Do not dispose of this product as household waste. Refer to
Chapter 6 (Maintenance procedures).
More marks and symbols are specified in this manual
11 1

[EN] English - K0457 Overview v
Issue 1
Overview There are three pressure stations in the PV 62x series:
•two pneumatic pressure stations to give you accurate and
controlled pressure and vacuum conditions:
PV 621: -950 mbar to 20 bar (-13.5 to 300 psi) version
PV 622: -950 mbar to 100 bar (-13.5 to 1500 psi) version
•one hydraulic pressure station to give you accurate and
controlled hydraulic pressure conditions:
PV 623: 0 to 1000 bar (15000 psi)
To give the attached equipment overpressure protection, there
are pressure relief valves (PRV) available for all the pressure
stations; refer to Section 1.5 (Accessories).
Other module options The pressure stations are part of a set of hand-held modules
that you can quickly put together to include a wide range of
calibrator functions.
Pressure calibrator (this user manual): You can use the
pressure stations on their own or you can attach the DPI 620
calibrator and a PM 620 module to make a fully integrated
pressure calibrator instrument.
Advanced modular calibrator, DPI 620 (user manual -
K0449): Optional item. This is a battery-powered instrument for
electrical measure and source operations and HART®
communications. It also supplies the power and user interface
functions for all the add-on modules. You can use the
touch-screen to display up to six different parameters.
Pressure modules, PM 620 (this user manual): Optional
item. These modules attach to a pressure station (PV 62x) to
give the DPI 620 calibrator the necessary pressure
measurement functionality. They are fully interchangeable
“plug and play” modules with no initial set-up or user
calibration.
Software (user manual - K0449): The DPI 620 calibrator
includes the following software:
Other accessories and options: For part numbers (P/N),
refer to Section 1.5 (Accessories).
PV 622
PV 621
PV 623
Pressure calibrator
DPI 620
PM 620
•documenting software •HART® communications
software

Issue 1
vi Summary of functions K0457 - [EN] English
Summary of
functions
This table gives a summary of the available functions with the
PV 62x pressure stations.
PV 62x - pressure station functions
Function
Pneumatic pressure stations
*PV 621: Pressure from vacuum (95%) to 20 bar (300 psi);
* PV 622: Pressure from vacuum (95%) to 100 bar (1500 psi)
Selector switch to change the pump operation from pressure
generator to vacuum generator
Needle point pressure release valve to control the release of
pressure.
Hydraulic pressure station
* PV 623: Hydraulic pressure from 0 to 1000 bar (15000 psi)
Internal hydraulic reservoir: 100 cm3(6.1 in3)
Self sealing pressure module connection to prevent fluid leaks.
Fast thermal stability for devices attached directly to the pressure
test connection (≤one minute)
All pressure stations
“Quick fit” pressure adaptors for the device under test
** Pressure connection for a PM 620 module
Volume adjuster to give accurate control of pressure conditions.
Latch mechanism to attach the DPI 620 calibrator to make a fully
integrated pressure calibrator instrument
** Pressure relief valves (PRV) to give overpressure protection.
** Pressure station + DPI 620 calibrator + PM 620 module
Measure pressure/Leak test
Documenting software
HART®(Highway Addressable Remote Transducer)
communications software to set up and calibrate devices that use
the HART®field communications protocol.
* Refer to Chapter 7 (Specification)
** Optional item
PV 622
PV 621
PV 623
Pressure calibrator

[EN] English - K0457 About this manual vii
Issue 1
About this manual This user manual is set up for you to use on a computer or
similar device that has the necessary software to read a
Portable Document Format (PDF) file.
It is supplied as a PDF on a compact disc (CD) but you can
copy or save the PDF onto a computer or similar device that
has the necessary PDF software.
To navigate between related items of information, the user
manual includes cross references and links; for example:
Note: If you move the PDF software cursor over an item that
has a link, the cursor symbol normally changes.
When you click (or tap) on a link, your PDF software shows the
applicable page.
•text cross references: ... Figure 1-1; Table 1-1; Chapter 1;
Section 1.5 (Accessories)
•some (but not all) symbols:
11 1

Issue 1
viii About this manual K0457 - [EN] English

[EN] English - K0457 Table of Contents viii
Issue 1
Table of Contents
Quick reference data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ii
Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .v
Other module options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .v
Summary of functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .vii
Chapter 1: Instrument parts, accessories and options
1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
1.2 PV 621 models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
1.2.1 Pressure relief valve (PRV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
1.2.2 Test port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
1.2.3 Pneumatic pressure release valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
1.2.4 Volume adjuster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
1.2.5 Selector (pressure/vacuum) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
1.2.6 Pump (pressure/vacuum) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
1.3 PV 622 models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
1.3.1 Pressure relief valve (PRV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4
1.3.2 Test port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
1.3.3 Pneumatic pressure release valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
1.3.4 Pneumatic refill valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
1.3.5 Volume adjuster wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
1.3.6 Selector (pressure/vacuum) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
1.3.7 Pump (pressure/vacuum) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
1.4 PV 623 models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
1.4.1 Pressure relief valve (PRV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
1.4.2 Test port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
1.4.3 Hydraulic pressure release valve/reservoir access. . . . . . . . . . . . . . . . . . . . .1-9
1.4.4 Hydraulic refill valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
1.4.5 Volume adjuster wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10
1.5 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Issue 1
ix Table of Contents K0457 - [EN] English
Chapter 2: Pneumatic pressure operation (PV 621)
2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
2.2 Release the pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
2.3 Attach/Remove the device under test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
2.3.1 Procedure (to attach) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
2.3.2 Procedure (to remove) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
2.4 Attach/Adjust a PRV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.4.1 Procedure (to attach) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
2.4.2 Procedure (to adjust) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
2.5 Vacuum or pressure operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.5.1 Vacuum procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
2.5.2 Pressure procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Chapter 3: Pneumatic pressure operation (PV 622)
3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
3.2 Release the pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
3.3 Attach/Remove the device under test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
3.3.1 Procedure (to attach) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
3.3.2 Procedure (to remove) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
3.4 Attach/Adjust a PRV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.4.1 Procedure (to attach) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
3.4.2 Procedure (to adjust) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
3.5 Vacuum or pressure operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3.5.1 Vacuum procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
3.5.2 Pressure procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
Chapter 4: Hydraulic pressure operation (PV 623)
4.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
4.2 Fill the reservoir. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
4.3 Release the pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
4.4 Attach/Remove the device under test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
4.4.1 Procedure (to attach) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
4.4.2 Procedure (to remove) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
4.5 Attach/Adjust a PRV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
4.5.1 Procedure (to attach) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
4.5.2 Procedure (to adjust) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3
4.6 Pressure operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4
4.6.1 Hydraulic pressure procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
4.6.2 Add more hydraulic fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5
4.6.3 Drain hydraulic fluid from the device under test . . . . . . . . . . . . . . . . . . . . . . . 4-5

[EN] English - K0457 Table of Contents x
Issue 1
4.7 Drain all the hydraulic fluid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
4.7.1 Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
4.7.2 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
Chapter 5: Pressure calibrator operation (DPI 620)
5.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
5.2 Parts and assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
5.2.1 DPI 620 calibrator parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
5.2.2 PM 620 module parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
5.2.3 Assembly instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
5.3 Measure pressure/vacuum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
5.3.1 Procedure overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3
5.3.2 DPI 620 calibrator: Set the pressure function. . . . . . . . . . . . . . . . . . . . . . . . .5-4
5.3.3 DPI 620 calibrator: Set the pressure units . . . . . . . . . . . . . . . . . . . . . . . . . . .5-5
5.3.4 DPI 620 calibrator: Set up a Leak Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-5
5.3.5 DPI 620 calibrator: Set the PM 620 module to zero . . . . . . . . . . . . . . . . . . . .5-6
5.3.6 Example procedure: Gauge/indicator calibration . . . . . . . . . . . . . . . . . . . . . .5-7
5.3.7 Example procedure: Transmitter calibration. . . . . . . . . . . . . . . . . . . . . . . . . .5-8
5.3.8 Example procedure: Switch test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-9
Chapter 6: Maintenance procedures
6.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
6.2 Clean the unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
6.3 Drain the unit (PV 623 models). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
6.4 Leak test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
6.4.1 Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
6.4.2 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2
Chapter 7: Specification
7.1 PV 62x models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
7.1.1 Pressure data (PV 62x models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-2
7.2 PM 620 modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
7.2.1 Pressure data (PM 620 modules). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
Customer service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Back cover

Issue 1
xi Table of Contents K0457 - [EN] English

[EN] English - K0457 Instrument parts, accessories and options 1-1
Chapter 1: Instrument parts,
accessories and options
1.1 Introduction This chapter gives a description of the different parts of each
instrument and the accessories/options available.
1.2 PV 621 models
Items 5, 9, 10: Not applicable
Figure 1-1: General views
1
2
3
4
6
7
8
11
12
13
1. Optional accessory: Pressure connection for a
pressure relief valve (PRV); see Section 1.2.1. A
blanking plug is standard.
2. Test port: Pressure connection (G1/8 or 1/8NPT) to
attach the device under test; see Section 1.2.2.
3. Pressure and electrical connections for a PM 620
module.
Seal the pressure connection with a blanking plug
(P/N IO620-BLANK) or a PM 620 module that has the
correct pressure rating.
4. Pneumatic pressure release valve to release pressure
in the system; see Section 1.2.3.
6. Moulded compartment for the DPI 620 calibrator with
electrical connections and a mechanism to hold it in
position.
7. Push-button mechanism to release the DPI 620
calibrator.
8. Pneumatic volume adjuster; see Section 1.2.4.
11. Pressure/vacuum selector to set the pump operation:
pressure (+), vacuum (-); see Section 1.2.5.
12. Pump mechanism; see Section 1.2.6.
13. Carrying strap with a carry handle and a shoulder
strap.

Issue 1
1-2 Instrument parts, accessories and options K0457 - [EN] English
1.2.1 Pressure relief valve (PRV)
To give your attached devices overpressure protection (device
under test, PM 620 module), we recommend you use one of
our range of optional pneumatic PRVs; see Section 1.5
(Accessories).
To attach or adjust a PRV, see Section 2.4.
1.2.2 Test port
To attach the device under test, the test port uses “Quick fit”
pressure adaptors; see Section 1.5 (Accessories). These are
easy to remove, change and install; see Section 2.3
(Attach/Remove the device under test).
1.2.3 Pneumatic pressure release valve
This is a needle point valve that lets you release the pressure
or vacuum, or seal the system. You can also use it to control a
change in pressure conditions; for example, to go to or through
another test pressure.
1.2.4 Volume adjuster
This control increases or decreases the pressure/vacuum.
Before you seal the system (Section 1.2.3), turn this control to
the necessary position:
•for equal adjustment, turn it to the middle of its range
•for maximum adjustment, turn it fully clockwise or
counterclockwise
When you have set the necessary pressure or vacuum with the
pump (Section 1.2.6), use the volume adjuster to make the last
adjustments.
1
2
4
: Open : Close
8

[EN] English - K0457 Instrument parts, accessories and options 1-3
Issue 1
1.2.5 Selector (pressure/vacuum)
Caution: Before you turn the pressure/vacuum selector
to + or -, release all the pressure. Sudden high pressure
in the pump mechanism can cause damage.
This control sets the operation of the instrument (pressure or
vacuum). To prevent a pressure leak, turn it fully clockwise or
counterclockwise.
1.2.6 Pump (pressure/vacuum)
When you have set the operation to pressure or vacuum
(Section 1.2.5), seal the system (Section 1.2.3) and use the
pump to set the necessary pressure or vacuum.
You can then make the last adjustments with the volume
adjuster (Section 1.2.4).
11
+: Pressure -: Vacuum
12

Issue 1
1-4 Instrument parts, accessories and options K0457 - [EN] English
1.3 PV 622 models
1.3.1 Pressure relief valve (PRV)
To give your attached devices overpressure protection (device
under test, PM 620 module), we recommend you use one of
our range of optional pneumatic PRVs; see Section 1.5
(Accessories).
To attach or adjust a PRV, see Section 3.4.
Items 8, 10: Not applicable
Figure 1-2: General views
1
2
3
4
5
7
6
9
11
12
13
1. Optional accessory: Pressure connection for a
pressure relief valve (PRV); see Section 1.3.1. A
blanking plug is standard.
2. Test port: Pressure connection (G1/8 or 1/8NPT) to
attach the device under test; see Section 1.3.2.
3. Pressure and electrical connections for a PM 620
module.
Seal the pressure connection with a blanking plug
(P/N IO620-BLANK) or a PM 620 module that has the
correct pressure rating.
4. Pneumatic pressure release valve to release pressure
in the system; see Section 1.3.3.
5. Pneumatic refill valve. Close it to seal off all the
pressure and refill the pressure mechanism; see
Section 1.3.4.
6. Moulded compartment for the DPI 620 calibrator with
electrical connections and a mechanism to hold it in
position.
7. Push-button mechanism to release the DPI 620
calibrator.
9. Volume adjuster wheel with fold-in handle; see
Section 1.3.5.
11. Pressure/vacuum selector to set the pump operation:
pressure (+), vacuum (-); see Section 1.3.6.
12. Pump mechanism; see Section 1.3.7.
13. Carrying strap with a carry handle and a shoulder
strap.
2

[EN] English - K0457 Instrument parts, accessories and options 1-5
Issue 1
1.3.2 Test port
To attach the device under test, the test port uses “Quick fit”
pressure adaptors; see Section 1.5 (Accessories). These are
easy to remove, change and install; see Section 3.3
(Attach/Remove the device under test).
1.3.3 Pneumatic pressure release valve
This is a needle point valve that lets you release the pressure
or vacuum, or seal the system. You can also use it to control a
change in pressure conditions; for example, to go to or through
another test pressure.
Note: To release all the pressure in the system, you must open
the refill valve (Section 1.3.4) one turn and then open the
pressure release valve one turn.
1.3.4 Pneumatic refill valve
When the refill valve is open, you have full control to increase
or decrease the pressure/vacuum with the volume adjuster
(Section 1.3.5).
If you increase pressure and the volume adjuster gets to the
limit of travel, close the refill valve. This seals off all the
pressure in the test port and the pressure module connection.
You can then use the pump and volume adjuster to refill the
pressure mechanism (Section 1.3.5).
Note: To release all the pressure in the system, you must open
the refill valve one turn and then open the pressure release
valve (Section 1.3.3) one turn.
1.3.5 Volume adjuster wheel
The refill valve (Section 1.3.4) sets the operation of the Volume
adjuster wheel: Full control or refill
2
4
Open Close
5
Open (1 turn): Full control Close: Refill
9

Issue 1
1-6 Instrument parts, accessories and options K0457 - [EN] English
Full control When the refill valve is open, you have full control to increase
or decrease the pressure/vacuum. Before you seal the system
(Section 1.3.3), turn the wheel to the necessary position:
•for equal adjustment, turn it to the middle of its range
•for maximum adjustment, turn it fully clockwise or
counterclockwise
When you have set the applicable pressure or vacuum with the
pump (Section 1.3.7), use the volume adjuster.
At higher pressures, it is easier to turn the wheel if you fold in
the handle:
1. Pull the handle out from the recess that locks it in position.
2. Fold the handle back against the wheel.
Refill If you increase pressure and the volume adjuster gets to the
limit of travel, close the refill valve (Section 1.3.4). You can then
use the pump and volume adjuster to refill the pressure
mechanism:
1. Close the refill valve and wind the volume adjuster fully
counterclockwise. There is no change in pressure to the
device under test or the PM 620 module (if applicable).
2. Refill the pressure mechanism with the pump (≈15 cycles)
and wind the volume adjuster clockwise until the pressure
starts to increase.
3. Open the refill valve to get full control again.
1
2
2
+
3
+
-
1

[EN] English - K0457 Instrument parts, accessories and options 1-7
Issue 1
1.3.6 Selector (pressure/vacuum)
Caution: Before you turn the pressure/vacuum selector
to + or -, release all the pressure. Sudden high pressure
in the pump mechanism can cause damage.
This control sets the operation of the instrument (pressure or
vacuum). To prevent a pressure leak, turn it fully clockwise or
counterclockwise.
1.3.7 Pump (pressure/vacuum)
When you have set the operation to pressure or vacuum
(Section 1.3.6), seal the system (Section 1.3.3) and use the
pump to set an applicable pressure or vacuum:
You can then make the last adjustments with the volume
adjuster (Section 1.3.5).
11
+: Pressure -: Vacuum
12

Issue 1
1-8 Instrument parts, accessories and options K0457 - [EN] English
1.4 PV 623 models
1.4.1 Pressure relief valve (PRV)
To give your attached devices overpressure protection (device
under test, PM 620 module), we recommend you use one of
our range of optional hydraulic PRVs; see Section 1.5
(Accessories).
To attach or adjust a PRV, see Section 4.5.
Items 5, 8, 11, 12: Not applicable
Figure 1-3: General views
7
1
6
2
3
4
10 9
13
1. Optional accessory: Pressure connection for a
pressure relief valve (PRV); see Section 1.4.1. A
blanking plug is standard.
2. Test port: Pressure connection (G1/8 or 1/8NPT) to
attach the device under test; see Section 1.4.2.
3. Pressure and electrical connections for a PM 620
module.
PV 623 models only: The pressure connection seals
itself.
4. Hydraulic pressure release valve to release pressure
in the system.
It also gives access to the hydraulic fluid reservoir; see
Section 1.4.3.
6. Moulded compartment for the DPI 620 calibrator with
electrical connections and a mechanism to hold it in
position.
7. Push-button mechanism to release the DPI 620
calibrator.
9. Volume adjuster wheel with fold-in handle; see
Section 1.4.5.
10. Hydraulic refill valve. Close it to seal off all the
pressure and refill the pressure mechanism with fluid;
see Section 1.4.4.
13. Carrying strap with a carry handle and a shoulder
strap.
1