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[hydraulic gauge calibrator]   [pneumatic gauge calibrator]   [hydraulic electronic deadweight tester

 

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controller/calibrators
PPC4™

Pressure Products Index

Automated Pressure Controller/Calibrator

DHI's fifth generation pressure controller/calibrator, continues to break new ground with an unprecedented combination of high end performance, operational versatility and long term reliability.

 

Choose your local user interface to best fit your application and budget.

   • For bench top users, the new graphic color display with point-and-click navigation will streamline your
     pressure calibration and testing task.
   • For system applications and where PPC4 will spend most of its time interfaced with a computer,
     choose the basic front panel.

Three different Q-RPT quartz reference pressure transducer) measurement classes available to fit different performance requirements.

Full Scale Standard (f), Standard (s), and Premium (p) Classes.

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The AutoRange™ feature supports infinite ranging, automatically optimizing all aspects of operation for the exact range to be explored and bringing a new dimension in rangeability to pressure controllers.

 

Patented positive shut-off pressure control gives 50:1 control turndown.

 

Open architecture allows nearly limitless system configurations to adapt to your specific application's requirements.

 

PPC4 carries on the PPC line's tradition of combining very high end performance with ruggedness and reliability.

 

Automated self purging liquid trap (SPLT) accessory is available for protection against liquid contamination.

 

PPC4 includes flash memory for simple and free embedded software upgrades

 

The Command Interpreter feature allows PPC4 to interpret and respond to custom remote commands including commands used by non-PPC4 pressure controllers and can be downloaded free at: CI Editor™

 

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PPC4-ui Advanced
PPC4 Basic

Premium Performance, Maximum Versatility, Outstanding Reliability 

 

With all of this, PPC4 delivers the performance, versatility, and reliability needed to face the next
generation of pressure calibration and test challenges in calibration labs, instrument shops and automated test stands.

E-DWT-H™
Pressure Products Index
Hydraulic Deadweight Tester Performance with Digital Measurement Convenience

E-DWT-H is an electronic calibrator designed to replace mechanical, piston-cylinder and weight based deadweight testers. It’s a lighter weight, easier-to-use deadweight tester alternative that is at home in the lab or instrument shop, as well as in the field performing in-situ calibrations and tests.

 

E-DWT-H offers precision, low measurement uncertainty and the stability over time of a conventional deadweight tester without the inconveniences associated with the piston-cylinders, weights, hand pumps, and interconnecting plumbing.
• No weights to load and unload or regularly send out for calibration
• No need to know and correct for local gravity or ambient temperature
• No piston-cylinder changes; switch Q-RPT ranges in seconds
• Not sensitive to level or vibration
• Able to set and read any pressure value exactly, no minimum increment limited by
  smallest available masses
• Operates in any unit of measure while deadweight tester is typically limited to the pressure unit
  stamped on the mass
• Perfect for applications that require setting a nominal pressure precisely on the device under test
  and measuring it, such as analog gauge calibration
• On-board, AutoTest calibration routines and data acquisition
• Interfaceable with a PC or laptop to allow for automated data acquisition
• Two year calibration interval supported at measurement uncertainty of ± 0.025% of reading.
• Easily recalibrated without crossfloating. Automated calibration of E-DWT-H is possible using
  COMPASS® for Pressure software.

Q-RPT (quartz reference pressure transducer) module advantages:

In addition to outstanding metrological characteristics, Q-RPT modules offer the advantages of:
• Negligible warm-up time
• Quartz element isolated from test medium
• Minimal sensitivity to orientation

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AutoTest™ lets E-DWT operators quickly define test points and adjust all of the range-dependent settings with a single function.

The resolution and stability test used by the RPM4-E-DWT are set according to the range of the device under test. The upper limit setting is also set and provides range-based warnings and overpressure protection. While running AutoTests, the operator is prompted to set each sequential test point and test data is stored in the RPM4-E-DWT for recall or download. Typical test setup is quick and easy, but more complex tests can also be stored and reused.

 

E-DWT-H can be configure to provide uncertainty of ± 0.02% of reading from 1% to 100% of full scale range.

 

Low torque variable volume allows for pressure generation up to 200 MPa (30,000 psi) with minimal physical effort.

 

AutoRange feature optimizes measurement, control and safety features for the specific range of the instrument being calibrated.

 

E-DWT-H includes everything to set, adjust and read pressure in one compact, transportable package and the rechargeable battery pack option provides for eight hours of field operation.

 

E-DWT-H includes flash memory for simple and free embedded software upgrades

 

 

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E-DWT-H Dual Q-RPTs
E-DWT-H Single Q-RPT

A modern alternative to the traditional deadweight tester

 

PPCH™


  • Hydraulic pressure     controller to 200 MPa     (30 000 psi)

  • High precision
    control

  • AutoRange feature

PPCH pressure controller/calibrator for hydraulic pressure

Automated Pressure Controller/Calibrator for Hydraulic Pressure

• For liquid pressures up to 30 000 psi (200 MPa) .
• Very high precision pressure control
• One or two Q-RPTs in each controller with 10:1 turndown
• Supports external reference pressure transducers.  

• FLASH memory for simple and free embedded software upgrades

PPCH-G™   



  • Gas pressure
    controller/calibrator
    to 100 MPa
    (15 000 psi)

  • High precision
    control

  • AutoRange feature


PPCH-G - automated gas pressure controller/calibrator for high pressure

Automated Gas Pressure Controller/Calibrator for High Pressure
• For gas pressures up to 15 000 psi (100 MPa)
• Intelligent AutoZero function
• One or two Q-RPTs in each controller with 10:1 turndown
• Supports external reference pressure transducers.

• FLASH memory for simple and free embedded software upgrades
hydraulic gauge calibrator
HGC-30000-AF

Hydraulic Gauge Calibrator

HG30000AF hydraulic gauge calibrator

• Special system for the calibration of high pressure hydraulic gauges
• Easily set pressure to DUT cardinal point and read back actual pressure from the reference
• Typical pressure set time < 90 seconds
• Complete a typical high pressure gauge run in about 10 minutes (20 % ascending increments)

HGC-30000-AF has been assigned NSN   6685-01-470-8667

pneumatic gauge calibrator
PGC-10000-AF   

PGC-10000-AF Pneumatic Gauge Calibrator

The PGC-10000-AF optimizes the testing and calibration of analog and digital pressure gauges and indicators in ranges from < 500 to 10 000 psi (3.5 to 70 MPa).  This special configuration was selected by the United States Air Force as the next generation high pressure pneumatic gauge calibration system for deployment in its Precision Measurement Equipment Laboratories (PMELs) throughout the world. (See the GPC1 and RPM4 brochures for additional product details)

PGC-10000-AF has been assigned NSN   6685-01-529-6990

brochures

PPC4 Brochure
newPPC4
(1.6 mg PDF)

product details, ordering information
& complete specifications


E-DWT-H Brochure

newE-DWT-H
(1.2 mg PDF)

product details, ordering information
& complete specifications



PPCH Brochure
PPCH
(413 kb PDF)

product details, ordering information
& complete specifications

PPCH-G Brochure
PPCH-G
(531 kb PDF)

product details, ordering information
& complete specifications

HGC-30000-AF Brochure
HGC-30000-AF
(900 kb PDF)

product details, ordering information
& complete specifications

PGC-10000-AF Brochure
PGC-10000-AF
(267 kb)

product details, ordering information
& complete specifications

applications notes

Calibrating draft range pressure sensors with a PPC4 Gas Pressure Controller/Calibrator

- 3433793 (352 kb PDF)
Calibrating draft range pressure sensors with a PPC4 Gas Pressure Controller/Calibrator

Dated: 2009 FEB

E-DWT-H Application Note
newE-DWT-H
(184 kb PDF

- 3462147 (184 kb PDF)
E-DWT Modern Replacement for the Conventional Deadweight Tester

Dated: 2009 JUL

Automate to the Max Application Note
Automate to the Max
A4 Format

(186 kb) PDF

11430 Automate to the max in Pressure Transducer Manufacturing
Dated: 2008 MAY


manuals

For a complete list
of pressure manuals,
visit our
documentation page.


technical paper
- An Automated Controller/Calibrator
  for Low Differential Pressure
  Around Atmosphere
Authors: Martin Girard,
Robert Haines
Dated: 2002 MAY
Presented at: Symposio de Metrologia Queretaro - MEXICO
Awarded "Best Paper by a Foreigner"
(122 kb PDF) 20020603
 

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