Keller MPX User manual

Operating instructions for the
medium pressure calibrator (MPX)

View 13
Notes on the operating instructions 14
1. Description of the device 14
2. General safety warnings 15
3. Operating the MPX 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
Table of contents

13
View
2134 578
91
0
6
1 Port for interface cable (K-104A or K-114A)
(PC connection / RS485)
2 Device base
3 Display
4 SELECT and ENTER buttons
5 Hand pump (integrated in the device)
6 Vacuum pump
7 Pressure relief valve
8 Fine-tuning valve
9 Pressure connection for test object (G 1/4”)
10 Y-coupler

Notes on the operating instructions
- The operating instructions are in-
tended for specialist workers and
trained personnel.
- Before each stage of work, read the
relevant notes and warnings care-
fully, and keep to the sequence as
stated.
- Pay particular attention to the sec-
tion 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 sup-
plied with the product, the medium
pressure calibrator enables the gene-
ration of pressures of -0,85 bar
relative (with the vacuum pump) to
+25 bar relative (with the hand pump).
The measurement technology incor-
porated into this device allows ac-
curate measurement and documen-
tation 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 ob-
jects (transmitters or pressure switch-
es) must be supplied from an external
source.
Pressure range for the display
The medium 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
medium pressure calibrator is zeroed
at ambient pressure (Set Zero). To re-
set the pressure zero point to absolute
pressure, use the RES Zero function
(reset zero).
Commissioning
A pressure-resistant connection for the
test object is required in order to use the
medium pressure calibrator. The pres-
sure connection for the test object is al-
ready screwed to the pressure distribu-
tor of the low-pressure calibrator so that
it is pressure resistant when it leaves
the factory, and it must not be dismant-
led. 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,
etc). Impurities could pass through the
adapter to reach the medium pressure
calibrator and damage it.
Overpressure
If the pressure exceeds the measur-
ing range by more than 20%, the
measuring cell or the mechanism of
the medium pressure calibrator may
be destroyed.
Recalibration
The recalibration cycle depends on
the conditions of use. Recommended
recalibration cycle: 1 year.
Scope of delivery
- 1 calibrator
- 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 Y-coupler
- 1CrNilter
- 1 spare battery, type CR2430
(3.0 V)
- 1 set of operating instructions
- 1 test record (5 points)
- 1 USB interface converter,
K-114A
- 1 KELLER software CD
Intended use
The medium pressure calibrator
(MPX) may only be used to generate
positive or negative pressure with air.
Use of the calibrator with other me-
dia, 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 ex-
ceeded.
Before installing the medium pressure
calibrator, check that it is suitable for
your applications.
Scope of delivery
Medium pressure calibrator
14

2. General safety warnings
The current national regulations on
accident prevention and workplace
safety must be followed whenever
work is carried out. Internal regula-
tions issued by the operator must be
followed, even if they are not men-
tioned in these instructions.
Never use the medium pressure cali-
brator together with an external pres-
sure source.
Do not remove any connected com-
ponents (e.g. test objects) when the
medium 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 pres-
sure: only store the medium pressure
calibrator with the pressure relief
valve open.
Avoid the action of force of any kind on
the medium pressure calibrator and its
operating controls.
Do not use medium pressure calibra-
tors if they are damaged or faulty.
3. Operating the MPX calibrator
Operating the medium pressure cali-
brator is described starting on page 16.
Connect the test object
You can connect your test object to
the medium pressure calibrator via the
pressure connection (9).
Zeroing the device
Open the pressure relief valve (7)
to release any pressure that may be
present (at most until the red mark is
visible). If the pressure display does
not show zero, perform a zeroing
procedure (Set Zero) and then close
the pressure relief valve.
Pressure generation
You can use the hand pump (5) to
make an approximate setting for the
desired pressure. You can then ne-
tune the pressure by screwing the
ne-tuningvalve(8)inorout.
Generating negative pressure
(vacuum)
Plug the Y-coupler (10) into the pres-
sure connection for the test object
(9). Connect the test object and the
vacuum pump (6) to the Y-coupler.
Use the vacuum pump to 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 medium pressure calibrator.
Information about the display
If no pressure can be shown on the
display, it will show OFL (overow) or
UFL(underow).
If pressure outside the device’s mea-
suring range is applied, the last valid
pressure value that was measured will
ashonthedisplay(overloadwarning).
Display
4. Description of 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.
SELECT button
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.
Function Display Description
Min. / Max. display Shows the peak and trough pressure values
measured thus far.
(Display is shown with reduced resolution)
Leak measurement Leak mode is used to determine the pressure
change over a dened period, which can be
changed.
(Leak measurement period, factory setting:
10 minutes)
Zero the display Permanently sets the applied pressure as the new
pressure zero point.
Reset
display
Resets the pressure zero point to the factory set-
ting.
(Zero point for vacuum ➞absolute pressure is
displayed)
Automatic
switch-off function
(Cont = Continuous) The device switch-
es off automatically after a dened pe-
riod (which can be changed), starting
from the last time a button was pressed.
(Switch-off period, factory setting: 15 minutes)
Select units mbar, bar, hPa, kPa, MPa, cmH2O, mH2O, inH2O,
ftH2O, PSI, kp/cm2, mmHg, inHg
15

5. Menu navigation for calibrators
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 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 pres-
sure 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
up from the MANO menu. Keep the
SELECT button pressed until MANO is
ENTER button
The ENTER button positioned on
the front is used to activate the se-
lected function or pressure unit on the
device. You can also press the ENTER
button to switch between the mini-
mum and maximum pressure values
measured thus far.
16
Menu navigation for calibrators
➞Pressure unit
➞Current measured value
SELECT button
E
N
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R
b
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t
t
o
n
❶ Resetting peak- and trough pressure
❷ Min. / max. display
❸ Leak measurement
❹ Set zero point permanently
❺ Reset zero point to factory setting
❻ Activate / deactivate switch-off function
❼ Select units
❶❷
❸
❹❺
❻❼
➞Leak runtime in mm:ss
➞
➞Pressure change within
leak runtime

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 me-
dium-pressure calibrator on the pres-
sure side.
Start leak measurement
Activate the MANO menu. The display
shows Leak dISP. Press the ENTER
button and then the SELECT button.
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.
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 fac-
tory, 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-
abled, Contashesonthedisplay.
7. Maintenance / disposal
Battery
The pressure calibrator is powered by a
3 V button-cell battery (behind the dis-
play). 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 hous-
ing section (turn through about 180°).
Open the battery compartment and
change the battery (type CR 2430).
Pressure coupling lter
The medium 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.
KELLER
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CrNi-Filter
➞Mano mode
➞Launch Leak
mode by press-
ing the ENTER
button
➞Start the leak
measurement
with ENTER
ENTER
ENTER
ENTER
17
➞Unit of pressure
➞Current
measured value
Leak run-
time in
mm:ss
➞
➞Unit of pressure
➞Current
measured value
Leak run-
time in
mm:ss
➞
Pressure change
within leak
runtime
Pressure change
within leak
runtime
➞
➞

Disposal
This product must not be disposed of
as normal household waste at the end
of its useful lifetime. To prevent pos-
sible damage to the environment or to
health due to uncontrolled waste dis-
posal, this product must be separated
from other waste and
recycled correctly in
order to ensure sus-
tainable use of the raw
materials.
8. Software for calibrators
The USB interface converter
(K-114A) enables communication bet-
ween the calibrator and a computer.
Before you connect the interface con-
verter to the computer, install driver
K-104 / K-114 (the software CD is in-
cluded in scope of delivery, K-114A, or
can be downloaded free of charge at
www.keller-druck.com)
Settings on the medium pressure
calibrator with the ManoCong
software
Device settings such as the leak
measurement time or the switch-off
time for the calibrator can be adjusted
usingthe"ManoCong"software.
Record measurements
with the CCS30 software
The CCS30 software records the data
measured by the pressure calibra-
tor, and shows them in both graphic
and tabular form. Measured data
can be saved or exported for fur-
ther 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)
ManoCong
18
Control Center
CCS30

Technical data
Pressure range -0,85…25 bar (others on request)
Overpressure 31 bar
Accuracy, error band (1) (10…40 °C) < 0,05 %FS
Accuracy, error band (1) (0…50 °C) < 0,1 %FS
Precision:optional(≥20bar) 0,025%FS/0.01%FS
Leak rate 25 bar: -125 bar @ 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) 342-496 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

20
Description Article number LPX MPX HPX Illustration
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
508832.0004 x x
Y-coupler 307025.0001 x
Test object adapter,
G 1/4”M–G 3/8”F
506810.0028 x
Test object adapter,
G 1/4”M–G 1/2”F
506810.0013 x
Sealing ring, G 1/8” 508635.0001 x x
Sealing ring, G 1/4” 508635.0002 x x
CrNilter 307025.2011 x x
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)
650505.0005 x
K-114A 309010.0075 x x x
Spare parts and accessories for KELLER pressure calibrators
suitable for