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Electronic Pressure Calibrator LPC 300
multi functional, Accuracy ±0.025% FSO
LPC 300 multi functional Pressure Calibrator
Accuracy ±0.025% FSO

The electronic pressure calibrator LPC 300 is used for high
precision calibration of pressure instruments, e.g. pressure gauges,
pressure transmitter, digital manometer, pressure switches,
overpressure protection valves, etc.

The LPC 300 is a very user-friendly, accurate and
compact solution for pressure comparison
calibrations. The built-in reference sensor is
changeable, several pressure ranges can be
covered with one LPC 300 unit.
All standard pressure ranges between 0.250 mbar (0.4 psi) and 0.1000 bar (0.14500 psi) are available as well as vacuum The electronic pressure calibrator LPC 300 measures pressure,
voltage and current and supplies 24 VDC as source for transmitter. Calibration procedures
can be pre-defined and used for calibrations on site. The LPC 300 is featured with USB- and
RS232-interfaces and is powered by a Lithium-Ion battery (rechargeable without memory-effect).
Features:
• precise, high resolution, compact, rigid• pressure ranges 0/250 mbar to 0/1000 bar 0/4 psi to 14500 psi, and vacuum & absolute ranges • changeable built-in reference sensor• all standard pressure units (plus one self-definable)• conversion pressure to current/voltage and vice versa• stores calibration data (plus integrated real time clock)• pressure switch test function (switch point adjustment)• menu-driven operating in English or German language • large illuminated display, lithium-ion battery powered• power supply 24 VDC for pressure transmitters• USB- and RS232 interface• calibration certificate, traceable to national standard LPC 300 with calibration pump LPP 30 “on site” In “measuring” operation, the LPC 300 displays
simultaneous:
• reference pressure
• output of unit under test
• deviation (in selected pressure unit)
• deviation (in % of full scale of unit under test)
This means very easy checking wether unit
under test is within it’s specified accuracy class.
The reference sensors have a welded st.st.
diaphragm for use also with aggressive fluids
and media which
are compatible with stainless steel 1.4571
DRUCK & TEMPERATUR Leitenberger GmbH
Bahnhofstr. 33 C D-72138 Kirchentellinsfurt C Germany Tel.: +49-7121-90920-0 C Fax: +49-7121-90920-99 E-Mail: [email protected] C http://www.druck-temperatur.de Technische Änderungen vorbehalten. Freibleibend C (Rel. 060713) • All technical modifications reserved. Without engagement Electronic Pressure Calibrator LPC 300
multi functional, Accuracy ±0.025% FSO
The LPC 300 has a numeric keypad and
separate cursor keys.
Together with the clear text menues, the
result is a very easy use and operation of
the LPC 300.
Note: the images are showing theGerman language version of the operating system.
Language can be switched to English and others.
The electronic pressure calibrator LPC 300 can be operated in three different modes:
1) Measuring Mode
First, the unit under test must be defined:• mechanical (e.g. pressure gauge) or electronic (e.g. pressure transmitter)• Pressure range: start and end• Accuracy class (of full scale or of reading)• Pressure unit• gauge or absolute• gaseous or fluid medium• power supply 24 VDC on or off Now the comparison calibration can be made:The display shows:• Pressure range of the LPC 300 reference sensor• True pressure as measured by the LPC 300• Pressure range of unit under test• Output signal of unit under test (measured if it is a pressure transmitter, to be entered if it is a pressure gauge without electr. output signal)• Deviation (in selected pressure unit of unit under test)• Deviation (in % of full scale of unit under test)With one view the operator sees wether the unit under test is within it’sspecification (accuracy class) or not.
15 different pressure units are available, one additional pressure unit canbe defined by the user.
The resolution adjustment (decimal point setting) can be made verycomfortable.
DRUCK & TEMPERATUR Leitenberger GmbH
Bahnhofstr. 33 C D-72138 Kirchentellinsfurt C Germany Tel.: +49-7121-90920-0 C Fax: +49-7121-90920-99 E-Mail: [email protected] C http://www.druck-temperatur.de Technische Änderungen vorbehalten. Freibleibend C (Rel. 060713) • All technical modifications reserved. Without engagement Electronic Pressure Calibrator LPC 300
multi functional, Accuracy ±0.025% FSO
2) Calibration
In this mode, calibration procedures can be pre-defined, incl. managementof units under test. One procedure has following data:Same like in “Measuring” mode, but in addition:• Calibration Number (program no.)• Serial number of unit under test• location number of unit under test• test pressure points (up to 22 for each unit under test)• dwell time (sec.) between test pressure points Up to 16 units under test with each 22 test points can be managed by theLPC 300 at a time.
Later on, it can be worked on the pre-defined calibration procedures onsite. The values are saved in the internal memory of the LPC 300 and canbe transmitted to a PC via the USB- or RS232 interface.
Also in this “Calibration” mode the operator can see on one view wetherthe unit under test is within it’s specification or not.
3) Pressure Switch - Test
After specification of the unit under test (pressure range, power supply 24VDC yes/no), the electronic pressure calibrator LPC 300 shows tha actualstatus of the pressure switch.
Also the pressures at closing and at opening are displayed, together withthe hysteresis.
Several basic parameters can be entered
into the LPC 300 , e.g.:
• ambient temperature
• fluid level difference of unit under test
• language (English / German / .)
•setting the real time clock
• setting the display
• setting of the powersafe function
• indicating battery level
• Tara value (offset)
• indicating min-max- values
• setting/indicating alarm values
• digital software-filter
• USB- and RS232-settings
DRUCK & TEMPERATUR Leitenberger GmbH
Bahnhofstr. 33 C D-72138 Kirchentellinsfurt C Germany Tel.: +49-7121-90920-0 C Fax: +49-7121-90920-99 E-Mail: [email protected] C http://www.druck-temperatur.de Technische Änderungen vorbehalten. Freibleibend C (Rel. 060713) • All technical modifications reserved. Without engagement Electronic Pressure Calibrator LPC 300
multi functional, Accuracy ±0.025% FSO
Technical Data:
Available LPC 300 reference pressure sensors
(special ranges on request)
burst pressure Accuracy: ±0.025% FSO *)
Overpressure warning: audio visual
Temperature compensation: active, 0.50°C
Wetted parts: stainless steel, welded; Thread: 1/2" BSP male
Resolution: adjustable, max. 6 digits +prefix +decimal point
Measurement voltage: 0-10 V, 0-5 V, 0-1 V
Resolution: display x 0,1 mV, accuracy ±0.5 mV
Measurement current: 0-20 mA, 4-20 mA
Resolution: display x 1 µA, accuracy ±1.6 µA
Voltage supply: 24 VDC min. 20 mA, max. 50 mA
tolerance ±1V
Operation conditions: 0°C. 50°C, max. 80% r.h. non-cond.
(during battery charging: 0.45°C)
Storage: -20°C.+60°C, max. 80% r.h. non-condensing
Graphic display: 128 x 128pPixel, display 44.7 x 44.7 mm
0.160 gauge
Storage capacity: 16 units under test, each 22 test points
RS232-Parameter: 4800, 9600 or 11200 Baud, adjustable
Battery: Lithium-Ion with intelligent charging electronics
Battery charger: 230 VAC 50/60 Hz (other on request)
Electrical connections:
charging plug 9V / 450 mA ±50 mA, with metal protection cap PC communication: USB and RS232, with metal prot. cap -0.25.+0.25
Measurement plugs:: 4 mm standard plugs for: -0.4.+0.4
current measurement 0/4-20 mAvoltage measurement 0-1/5/10 V -0.6.+0.6
Dimension: 12.5 x 21 x 8 cm (width x height x depth)
Weight: appr. 1.1 kg
-1.+24 gauge
*) calibrated at +23°C, incl. linearity, hysteresis and repeatability The LPC 300 can manage up to 5 system-sensors
at a time.
Optional Accessories:

• rubber protection caps for electrical measuring plugs
• electr. extension cable for reference sensor voltage & current input, voltage output, (herewith the reference sensor can be used “outside” pressure switch, USB/RS232, battery charger the LPC 300 unit for more flexibility)
DRUCK & TEMPERATUR Leitenberger GmbH
Bahnhofstr. 33 C D-72138 Kirchentellinsfurt C Germany Tel.: +49-7121-90920-0 C Fax: +49-7121-90920-99 E-Mail: [email protected] C http://www.druck-temperatur.de Technische Änderungen vorbehalten. Freibleibend C (Rel. 060713) • All technical modifications reserved. Without engagement

Source: http://www.bhvsenzory.cz/data/products/file/lpc300_e.pdf