PPCH Automated Pressure Controller / Calibrator

Model#:PPCHPart#:3072503
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  • PPCH Automated Pressure Controller / Calibrator

Key features

  • High-precision controller for up to 200 MPa (30,000 psi) liquid pressures.
  • Features AutoRange, supports varied transducers, set pressures reliably to less than 150 psi.
  • Q-RPT: Boosts precision, reduces uncertainty. +/- 0.01% reading.
  • AutoRange function to optimize all aspects of operation for specfici DUT range. High control resolution, multiple control modes.10:1 Pressure control turndown
  • Open architecture enables flexible pressure measurement, Q-RPTs either internal or remote.

Product overview: PPCH Automated Pressure Controller / Calibrator

Quartz reference pressure transducer (Q-RPT) modules


PPCH's outstanding pressure measurement specifications are made possible by Fluke Calibration's exclusive quartz reference pressure transducer (Q-RPT) modules.

Q-RPTs measure pressure by measuring the change in the natural oscillating frequency of a quartz crystal with pressure induced stress. To be qualified for use in a Q-RPT module, each transducer is individually evaluated and characterized using automated primary pressure standards. Only transducers exhibiting required levels of linearity, repeatability and stability are selected. A proprietary compensation model, derived from more than 15 years experience with thousands of quartz pressure transducers, is applied to optimize the metrological characteristics needed in a transfer standard.

PPCH can be delivered with a low cost utility sensor for applications in which the high precision and stability of a Q-RPT are not required.

Q-RPTs available for PPCH
Q-RPT DesignationSI Version Maximum Range
Absolute Gauge (MPa)
US Version Maximum
Range AbsoluteGauge (psi)
A200M120030 000
A140M114020 000
A100M110015 000
A70M7010 000
A40M406 000
A20M203 000

1. Hi Q-RPT only, not available in Lo Q-RPT position.

Infinite Ranging™ and autoRange™


There is a lot more to covering a wide range of test devices with a single pressure controller than "% of reading" measurement uncertainty.

In addition to the necessary measurement uncertainty, PPCH offers the full pressure control and feature adaptability that are needed for true rangeability in test and calibration applications. Infinite ranging gives PPCH unprecedented versatility in adapting to a wide variety of devices to be tested. With the easy to use AutoRange function, a few simple key strokes or a single remote command string at the start of a test adapts every feature of the controller to optimize it for a specific range.

Open architecture


A PPCH controller can be configured with up to four Q-RPT modules. These can be internal or external to the PPCH controller. External Q-RPTs are in RPM4™ Reference Pressure Monitors. The RPM4's Q-RPTs then become part of the PPCH system and are managed by PPCH. External Q-RPTs must be disconnected or protected by valves when PPCH is used at pressure greater than the external Q-RPT range. Examples of possible PPCH system configurations include:

  • A PPCH with one or two built-in Q-RPTs to act as a stand alone, "one box" controller/calibrator package.
  • A PPCH with no internal Q-RPTs and an external Q-RPT to configure a system whose reference pressure measurement is remote from the controller. This configuration is ideal when it is advantageous for the reference to be removed from the system (e.g. for recalibration) while leaving the controller installed or to locate the reference measurement in closer proximity to the device or system under test.
  • A PPCH with no built-in Q-RPTs to act as a low cost automated pressure setting and controlling device (for example to automate pressure control in a PG7000™ piston gauge system).

Features, features, features


PPCH includes all the features you expect in today's state-of-the-art instruments and much more:

  • Pressure "ready/not ready" indicator with user adjustable criteria
  • Intelligent AutoZero™ function
  • 16 SI and US pressure units
  • Automatic fluid pressure head correction
  • On-board, programmable calibration sequences with DUT tolerance testing
  • Remote [ENTER] footswitch for hands free test execution
  • Valve drivers option for system design
  • Automated leak testing routines
  • RS-232 and IEEE- 488 communications
  • FLASH memory for simple and free embedded software upgrades

Specifications: PPCH Automated Pressure Controller / Calibrator

PPCH General Specifications
Power Requirements85 to 264 VAC, 50/60 Hz, 75 W max
Normal Operating Temperature Range15 to 35 °C
VibrationMeets MIL-T-28800D
Weight (Typical)50 kg approx (110 lb)
Dimensions30 cm H x 52 cm W x 50 cm D
(12 in. x 20.5 in. x 20 in.) with enclosure
6U H rack mount version
Communications PortsRS232 (COM1, COM2), IEEE-488.2
Operating ModesGauge, absolute
Pressure RangesAtmosphere to 200 MPa (30,000 psi)
Operating MediaSebacate oil standard. Others optional (consult Fluke Calibration)
Internal Reservoir Volume250 cc (external unlimited)
Drive Air Supply70M - 500 kPa (75 psi), 300 l/m (10cfm)
140M - 500 kPa (75 psi), 450 l/m (15cfm)
100M - 700 kPa (100 psi), 300 l/m (10cfm)
200M - 700 kPa (100 psi), 450 l/m (15cfm)
Pressure ConnectionsDRIVE AIR SUPPLY 1/8 in. NPT F
TEST DH500 (equivalent to AE F250C, HIP HF4)
Utility SensorPrecision/Resolution
± 0.10 % span / 0.001 % span
Drivers(8) 12V, 1 A max total output
CE ConformanceAvailable, must be specified
Pressure control
Control ModesDynamic: Sets target pressure within hold limit and continuously adjusts pressure to remain at target value.

Static: Sets target pressure within hold limit and shuts off control, allowing pressure to stabilize naturally.

Monotonic: Sets pressure to target, then maintains very slow ramp in same direction as pressure increment.

Ramp: Sets and maintains user specified rate of change of pressure.

Piston Gauge: Control PPCH is controlled by PG7302™ to automate piston gauge pressure control.
Control PrecisionTo ± 0.003 % of Q-RPT span
Control Volume0 to 100 cc, 50 cc optimum (operates in larger volumes but pressure stabilizing time increases)
Control Speed180 seconds into a 50 cc volume and 20 % FS excursions with default hold limits.
Lowest Controllable Pressure1 MPa (150 psi)(lower in optimum conditions and with PG7302)
Measured and delivered pressure (Q-RPT)
Warm Up Time30 minute temperature stabilization recommended from cold power up
ResolutionTo 1 ppm, user adjustable
CalibrationA2LA accredited calibration report included
Q-RPTsLess than A200MA200M
Precision1± 0.012 % of reading5±0.015 % of reading5
Predicted One Year Stability2± 0.005 % of reading± 0.005 % of reading
Measurement Uncertainty Delivered± 0.013 % of reading5± 0.018 % of reading5
Pressure Uncertainty
(Dynamic Control Mode)4
± 0.016 % of reading5± 0.020 % of reading5

1. Combined linearity, hysteresis and repeatability.
2. Predicted one year stability limit (k=2) assuming regular use of AutoZero function. AutoZero occurs automatically when vented in gauge mode, by comparison with a barometric reference in absolute mode. Absolute mode predicted one year stability without use of AutoZ is ± (0.005 % Q-RPT span + 0.005 % of reading).
3. Maximum deviation of the Q-RPT indication from the true value of applied pressure including precision, predicted one year stability, temperature effect and calibration uncertainty, combined and expanded (k=2) following the ISO "Guide to the Expression of Uncertainty in Measurement."
4. Maximum deviation of the PPCH controlled pressure from the true value including measurement uncertainty and dynamic control hold limt.
5. % of reading applies to 30 to 100 % of Q-RPT span. Under 30 % of Q-RPT span, uncertainty is a constant value obtained by multiplying the % of reading value by 30 % of Q-RPT span.

Models: PPCH Automated Pressure Controller / Calibrator

PPCH
Hydraulic Pressure Controller/Calibrator
Part#: 3072503
PPCH-nnnM
PPCH Automated Pressure Controller/Calibrator for Hydraulic Pressure with no internal Q-RPT (utility sensor only)

To configure:
  • Determine maximum controlled pressure required. Select:
    • PPCH-200M for 200 MPa (30 000 psi)
    • PPCH-140M for 140 MPa (20 000 psi)
    • PPCH-100M for 100 MPa (15 000 psi)
    • PPCH-70M for 70 MPa (10 000 psi)
  • Configure an appropriate RPM4. Note that the maximum pressure of the PPCH defines the maximum pressure of the PPCH system.
PPCH-nnnM AnnnMc1/AnnnMC2
PPCH Automated Pressure Controller/Calibrator for Hydraulic Pressure with one or two internal Q-RPTs

To configure:
  • Determine maximum controlled pressure required. Select:
    • PPCH-200M for 200 MPa (30 000 psi)
    • PPCH-140M for 140 MPa (20 000 psi)
    • PPCH-100M for 100 MPa (15 000 psi)
    • PPCH-70M for 70 MPa (10 000 psi)
  • Select one or two Q-RPTs. Lo Q-RPT must be A70M or lower.
A100M
PPCH Quartz Reference Pressure Transducer (Q-RPT)

A140M
PPCH Quartz Reference Pressure Transducer (Q-RPT)

A200M
PPCH Quartz Reference Pressure Transducer (Q-RPT)

A40M
PPCH Quartz Reference Pressure Transducer (Q-RPT)

A70M
PPCH Quartz Reference Pressure Transducer (Q-RPT)

PPCH 08-SP
Special fluid

PPC4 07
Special calibration

PPCH 06-01
Enclosure (for bench applications)

PPCH 05-01
CE mark

PPCH 04-02
SI units version

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