Keller LPX Operating Manual

Operating instructions for
the low pressure calibrator (LPX)
Table of contents
View 13
Notes on the operating instructions 14
1. Description of the device 14
2. General safety warnings 15
3. Operating the LPX calibrator 15
4. Description of the functions 15
5. Menu navigation for calibrators 16
6. Commissioning 16
7. Maintenance / disposal 17
8. Software for calibrators 18
Technical data 19
Spare parts and accessories for KELLER pressure calibrators 20
Declaration of conformity 31
View
5
2
1 10 3
(PC connection / RS485) 2 Device base 3 Display 4 SELECT and ENTER buttons 5 Hand pump 6 Vacuum pump 7 Pressure relief valve 8 Fine-tuning valve 9 Pressure connection for test object
(Serto coupler / connection nipple, G 1/4”) 10 Connection for hand and vacuum pumps
(up to -850 mbar)
4
6
7
9
8
13
Notes on the operating instructions
- The operating instructions are in­tended for specialist workers and trained personnel.
- Before each stage of work, read the relevant notes and warnings care­fully, and keep to the sequence as stated.
- Pay particular attention to the sec­tion on ”General safety warnings”.
If you have any problems or questions, please contact your supplier or consult KELLER directly.
1. Description of the device
General description
By means of the pressure pumps supplied with the product, the low­pressure calibrator enables the ge­neration of pressures of -0,85 bar relative (with the vacuum pump) to +10 bar relative (with the hand pump). The measurement technology incor­porated into this device allows ac­curate measurement and documen­tation of the characteristic of a test object that is connected to it. The measured pressure progression can be displayed, evaluated and saved with a computer monitoring program (CCS30). The calibrator is operated with the two function buttons SELECT and ENTER, located directly below the display. The calibrator it­self is powered by a 3,0 V battery, but power can also be supplied externally via the K-114A interface converter. Test objects (transmitters or pressure switches) must be supplied from an external source.
Pressure range for the display
The low pressure calibrator has a factory-set pressure zero point of 0 bar absolute (vacuum). The Zero function allows any desired pressure value to be set as the new zero point reference. To take relative measurements, the low pressure calibrator is zeroed at ambient pressure (
Zero
). To reset the pressure zero
point to absolute pressure, use the
Set
RES Zero function (reset zero).
Commissioning
A pressure-resistant connection for the test object is required in order to use the low pressure calibrator. The pressure connection for the test object is already screwed to the pressure dis­tributor of the low pressure calibrator so that it is pressure resistant when it leaves the factory, and it must not be dismantled. Recommended torque for the test ob­ject pressure connection: 10 Nm
IMPORTANT!
Nothing must adhere to the surface of the test object (no oil, grease, water,
Impurities could pass through the
etc). adapter to reach the low pressure cali­brator and damage it.
Overpressure
If the pressure exceeds the measuring range by more than 20%, the measur­ing cell or the mechanism of the low pressure calibrator may be destroyed.
Recalibration
The recalibration cycle depends on the conditions of use. Recommended recalibration cycle: 1 year.
Scope of delivery
Low pressure calibrator
Scope of delivery
- 1 calibrator
- 1 hand pump
- 1 carrying case
- 1 vacuum pump
- 1 hose nipple
- 1 connection nipple, G 1/4”
- 2 sealing rings (G 1/8” + G 1/4”)
- 1CrNilter
- 1 spare battery, type CR2430 (3,0 V)
- 1 set of operating instructions
- 1 test record (5 points)
- USB interface converter, K-114A
- 1 KELLER software CD
Intended use
The low pressure calibrator (LPX) may only be used to generate positive or negative pressure with air. Use of the calibrator with other media, especially hydraulic oil, will damage it. The op­erational safety of the device supplied is guaranteed only if it is used as in­tended. The limit values as stated (see page 19: ”Technical data”) must never be exceeded. Before installing the low pressure cali­brator, check that it is suitable for your applications.
14
2. General safety warnings
The current national regulations on accident prevention and workplace safety must be followed whenever work is carried out. Internal regula­tions issued by the operator must be followed, even if they are not men­tioned in these instructions.
Never use the low pressure calibra­tor together with an external pressure source.
Do not remove any connected compo­nents (e.g. test objects) when the low pressure calibrator is under pressure. Open the pressure relief valve before removing one of the parts.
Only use the adapters and seals that are available as accessories.
Do not store the calibrator under pres­sure: only store the low pressure cali­brator with the pressure relief valve open.
Avoid the action of force of any kind on the low pressure calibrator and its operating controls.
Do not use low pressure calibrators if they are damaged or faulty.
Generating negative pressure
Display
(vacuum)
Engage the vacuum pump (6) in the connection port (10) and lower the
pressure. You can then ne-tune the pressure by screwing the ne-tuning
valve (8) in or out.
Release pressure
Open the relief valve (7) to reduce the pressure to an approximate level, or to vent the low pressure calibrator.
Information about the display
If no pressure can be shown on the dis­play, it will show
OFL(overow)orUFL
4. Description of the functions
Menu navigation
If the selected function or unit is not activated
by pressing the ENTER button within 5 seconds, the display will return to measuring mode without changing a setting.
(underow).
If pressure outside the device’s measuring range is applied, the last valid pressure value that was
measured will ash on the display
(overload warning).
Function Min. / max. display Shows the peak and trough pressure values
Display
Description
measured thus far. (Display is shown with reduced resolution)
3. Operating the LPX calibrator
Operating the pressure calibrator is de­scribed starting on page 16.
Connect the test object
You can connect your test object to the low pressure calibrator via the pressure connection (9).
Zeroing the device
Engage the hand pump (5) in the con­nection port (10). Open the pressure relief valve (until the red mark is visible at most) to release any pressure that may be present. If the pressure display does not show zero, perform a zeroing procedure
(Set Zero)
. Then close the
pressure relief valve.
Pressure generation
You can use the hand pump (5) to make an approximate setting for the desired pressure.
Leak measurement Leak mode is used to determine the pressure
Zero the display
Reset display
Automatic switch-off function
Select units
change over a dened period, which can be
changed. (Leak measurement period, factory setting: 10 minutes)
Permanently sets the applied pressure as the new pressure zero point.
Resets the pressure zero point to the factory set­ting. (Zero point for vacuum absolute pressure is displayed)
(Cont = Continuous) The device switches off
automatically after a dened period (which can
be changed), starting from the last time a button was pressed. (Switch-off period, factory setting: 15 minutes)
mbar, bar, hPa, kPa, MPa, cmH2O, mH2O, inH2O, ftH2O, PSI, kp/cm
2
, mmHg, inHg
15
SELECT button
Menu navigation for calibrators
❻❼
The SELECT button positioned on the front is used to switch the device on, to select a function and to select the various pressure units.
5. Menu navigation for calibrators
❶❷
SELECT button
E N T E R
b u t t o n
Resetting peak- and trough pressure
Min. / max. display
Leak measurement
Set zero point permanently
Reset zero point to factory setting
Activate / deactivate switch-off function
Select units
ENTER button
The ENTER button positioned on the front is used to activate the selected
❹❺
Leak runtime in mm:ss
Pressure unit Current measured value
Pressure change within
leak runtime
6. Commissioning
Switch the device on
Press the SELECT button to switch the device on. Initially, the device shows the pressure range calibrated in the factory (top) and the software version (year / week).
Switch the device off
Keep the SELECT button pressed down until the display shows
16
OFF.
Press the ENTER button to execute the shutdown.
The settings made previously are retained when you switch the device on and off.
Display mode
Display mode is the calibrator’s basic mode. The upper part of the display shows the pressure unit and the pres­sure that is currently measured. The lower part of the display shows the last
function that was used, either the Min./ max. display or the Leak function.
Using the functions
Written descriptions of the individual functions are given below (in addition to the diagram above).
Selecting functions
The individual sub-functions are called
from the MANO menu. Keep the
up SELECT button pressed until
MANO is
shown, and press ENTER to activate. You can now use SELECT to choose the function you want, and ENTER to execute the function. Depending on
the current setting, the rst function
to be shown is either min/max disp or
LEAK disp.
Leak measurement function
Leak mode is used to determine the pressure change over a dened pe­riod, which can be adjusted. The unit to be tested must be connected to the low pressure calibrator on the pressure side.
Start leak measurement
Activate the shows button and
PressENTERtoconrm Leak Start.
The leak measurement starts, and the display alternates between the current leak time and the pressure change measured thus far.
Active leak measurement
During leak measurement, the lower part of the display alternates each second between the measurement time that has now elapsed [mm:ss] and the pressure change measured thus far.
MANO menu. The display
Leak dISP. Press the ENTER
then the SELECT button.
Mano mode
ENTER
End leak measurement early
To end an active leak measurement early, press the ENTER button and conrm the ”Leak Stop” display by pressing ENTER.
Leak measurement completed
If the leak measurement time has elapsed or if the measurement was manually ended ahead of time, the display alternates between the elapsed leak measurement time and the measured pressure change.
Set leak measurement time
The leak measurement time is preset to 10 minutes in the factory, and it can only be changed with the ”Mano Con-
g”software.
( Software for calibrators)
MANO / "Continuous" function
Automatic switch-off function (the de­vice switches off automatically 15 min­utes after a button was last pressed). Leak measurements are canceled by the automatic switch-off function if the measurement time is more than the switch-off time.
Cont on: Disables the automatic
switch-off function
Cont oFF: Enables the automatic
switch-off function
If the "Continuous" function is en-
Contashesonthedisplay.
abled,
7. Maintenance / disposal
Battery
The pressure calibrator is powered by a 3 V button-cell battery (behind the display). If the battery is low, the bat­tery symbol on the display lights up.
Replacing the battery
Please switch the device off. Turn the display section ring beyond the limit stop until it is released from the hous­ing section (turn through about 180°). Open the battery compartment and change the battery (type CR 2430).
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Pressure coupling lter
The low pressure calibrator has a CrNi
lter, 11 x 8 (material DIN 1.4404), tted behind the pressure coupling
in order to prevent impurities from penetrating inside it, which could cause leaks.
Ifthelterisdirtyandpressurecanno
longer be transmitted, replace it with
thesparelterthatisincludedinthe
scope of delivery.
Leak run­time in mm:ss
Launch Leak
mode by press-
ENTER
ENTER
ing the ENTER button
Start the leak
measurement with ENTER
Unit of pressure
➞ ➞ Current
measured value
Leak run­time in mm:ss
Unit of pressure
➞ ➞ Current
measured value
CrNi-Filter
Pressure change within leak runtime
Pressure change within leak runtime
17
Disposal
This product must not be disposed of as normal household waste at the end of its useful lifetime. To prevent pos­sible damage to the environment or to health due to uncontrolled waste
disposal, this product must be separated from other waste and recycled correctly in order to ensure sus­tainable use of the raw materials.
8. Software for calibrators
The USB interface converter (K-114A) enables communication between the calibrator and a computer. Before you connect the interface converter to the computer, install driver K-104 / K-114 (the software CD is included in the scope of delivery, K-114A, or can be downloaded free of charge at www.keller-druck.com)
Settings on the low pressure
calibrator with the ManoCong
software
Device settings such as the leak measurement time or the switch-off time for the low pressure calibrator can be adjusted using the "ManoCon-
g"software.
Control Center CCS30
Record measurements with the CCS30 software
The CCS30 software records the data measured
by the pressure calibra­tor, and shows them in both graphic and tabular form. Measured data can be saved or exported for further processing. You will nd more in­formation about the software in the CCS30 manual.
Step-by-step software installation
Install from the CD or from www.keller-druck.com:
1.) K-104 / K-114 driver
2.) (CCS30) Control Center Series 30
3.)ManoCong(ifdesired)
18
ManoCong
Technical data
Pressure range -0,85…10 bar (others on request)
Overpressure 12 bar
Accuracy, error band
Accuracy, error band
(1)
(10…40 °C) < 0,05 %FS
(1)
(0…50 °C) < 0,1 %FS
Leak rate 10 bar: -50 mbar @ 10 min.
Display resolution 1 mbar
Number of digits on display 5 digits
Measurement interval 0,5 seconds
Interface RS485; the Fischer cable socket on the side fits the K-104A / K-114A
interface converter
Compensated temperature range 0…50 °C
Operating temperature 0…50 °C
Storage temperature -10…60 °C
Air humidity 5…95% relative humidity
Power supply Button-cell battery, type CR2430
Battery lifetime: > 2000 h in continuous operation
Dimensions (L x W x H) 159 x 138 x 148 mm
Degree of protection IP 65
Selectable pressure units bar, mbar, hPa, kPa, MPa, PSI, kp/cm2, cmH2O, mH2O, inH2O, ftH2O,
mmHg, inHg
(1)
including accuracy, temperature coefficients, zero point and range tolerance
19
Spare parts and accessories for KELLER pressure calibrators
Description Article number
Carrying case, empty 309025.0005 x x x
Battery, type CR2430 557005.0001 x x x
Hose nipple 508832.0005 x x
Connecting nipple, G 1/4”
including sealing ring
Y-coupler 307025.0001 x
Test object adapter,
G 1/4”M–G 3/8”F
Test object adapter,
G 1/4”M–G 1/2”F
Sealing ring, G 1/8” 508635.0001 x x
Sealing ring, G 1/4” 508635.0002 x x
CrNilter 307025.2011 x x
508832.0004 x x
506810.0028 x
506810.0013 x
LPX
suitable for
MPX HPX
Illustration
Vacuum pump 309005.0005 x x
Hand pump 309005.0004 x
Fine-tuning valve 309030.0006 x x
Bottle of oil, 0,5 l
(HLP 22 BP hydraulic oil)
K-114A 309010.0075 x x x
20
650505.0005 x
Konformitätserklärung Declaration of Conformity Déclaration de Conformité
Für das folgenden Erzeugnis…
Niederdruckkalibrator LPX
…wird hiermit bestätigt, dass es den wesentlichen Schutzan­forderungen entspricht, die in der Richtlinie des Rates zur Angleichung der Rechtsvorschriften der Mitglied­staaten über die elektromagne­tische Verträglichkeit (2004/108/EG) festgelegt sind.
Diese Erklärung gilt für Produkte die­ser Serie, die mit dem CE-Zeichen versehen und die Bestandteil dieser Erklärung sind.
Zur Beurteilung der Erzeugnisse hin­sichtlich elektromagnetischer Ver­träglichkeit wurden folgende Normen heran gezogen.
Diese Erklärung wird verantwortlich für den Hersteller:
Herewith we declare that the following product or product range
Low pressure calibrator LPX
meet the basic requirements for the electromagnetic compatibility, which are established in the directive of the European Community (2004/108/EC).
This declaration is valid for products of this Series marked with the CE sign and which are part of this declaration.
As criteria for the electromagnetic compatibility, the following norm is applied:
EN 61326-2-3:2006
This declaration is given for the manu­facturer
Nous attestons que le produit ou gamme de produits :
Calibrateur basse pression LPX
répondent aux exigences de base en matière de compatibilité électromag­nétique prévues par la directive de la Communauté Européenne (2004/108/ CE).
La présente déclaration est valable pour les produits de cette série, mar­qués avec le sigle CE et faisant partie intégrante de la présente déclaration.
La norme appliquée pour évaluer la compatibilité électromagnétique des­dits instruments est la suivante :
La présente déclaration est fournie pour le fabricant
KELLER AG für Druckmesstechnik, St. Gallerstrasse 119, CH-8404 Winterthur
abgegeben durch die
KELLER GmbH, Schwarzwaldstrasse 17, D-79798 Jestetten
Jestetten, 4. Oktober | October | Octobre 2012
Hannes W. Keller Geschäftsführender Inhaber | Managing Owner | Président Directeur Général
mit rechtsgültiger Unterschrift | with legally effective signature | dûment autorisé à signer
in full responsibility by
par
KELLER AG für Druckmesstechnik
St.Gallerstrasse119•CH-8404Winterthur Tel.+41(0)522352525•Fax+41(0)522352500
www.keller-druck.com
November•November•Novembre2012
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