PPCH-G Automated Gas Pressure Controller/Calibrator
PPCH-G™, is a gas pressure controller/calibrator for gas pressure operation from 1 to 100 MPa (150 to 15,000 psi).
PPCH-G General Specifications |
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| Power Requirements | 85 to 264 VAC, 50/60 Hz, 75 W max |
| Temperature Range | 15 to 35 °C |
| Vibration | Meets MIL-T-28800D |
| Weight (Typical) | 32 kg approx (70 lb) |
| Dimensions | 30 cm H x 52 cm W x 50 cm D (12 in. x 20.5 in. x 20 in.) with enclosure, also 6U H rack mount |
| Communications Ports | RS232 (COM1, COM2), IEEE-488.2 |
| Operating Modes | Gauge, absolute |
| Pressure Ranges | Atmosphere to 100 MPa (15 000 psi) |
| Operating Media | Nitrogen, air (others optional) |
| Drive Air Supply | 500 to 800 kPa (75 to 120 psi) |
| Test Gas Supply | Greater than maximum pressure to be controlled by at least 5% of controller range, but not more than 15% greater than controller range, minimum 70% of controller range, ± 1 % stabillity. Flow adequate to maintain stable supply while slewing into test volume. |
| Pressure Connections | Drive air supply: 1/8 in. NPT F Test gas supply: DH500 (equivalent to AE F250C, HIP HF4) Test: DH500 |
| Utility Sensor | Precision/Resolution ± 0.10 % span / 0.001 % span Drivers (8) 12V, 1 A max total output CE Conformance Available, must be specified |
Pressure control |
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| Control Modes |
Dynamic (standard and high volume): Sets target within hold limit and continuously adjusts pressure to remain at target value. Static: Sets target within hold limit and stops control, allowing pressure to stabilize naturally. Monotonic: Sets pressure to target and maintains very slow ramp in same direction as pressure increment. Ramp: Sets and maintains user specified rate of change of pressure. Piston Gauge Control : Automates piston gauge pressure control. |
| Control Precision | To ± 0.001 % of Q-RPT span (standard dynamic) |
| Control Volume | 0 to 100 cc, 50 cc optimum (operates in larger volumes but pressure stabilizing time increases) |
| Slew rate | 60 sec. 0 to full scale, 50 cc volume |
| Dynamic mode Typical Time to Ready | 90 to 150 seconds |
| Lowest Controllable Pressure | 0.7 MPa (100 psi) |
Measured and delivered pressure (Q-RPT) |
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| Warm Up Time | 30 minute temperature stabilization recommended from cold power up |
| Resolution | To 1 ppm, user adjustable |
| Predicted One Year Stability2 | ± 0.005 % of reading |
| Calibration | A2LA accredited calibration report included |
| Q-RPTs A20M to A100M |
Precision1: Greater of ± 0.012% of reading or 0.0036% of Q-RPT span5 Measurement Uncertainty3: Greater of ±0.013 % of reading or 0.004% of Q-RPT span5 Delivered Pressure Uncertainty (Dynamic Mode): Greater of ± 0.016% of reading or 0.005% of Q-RPT span5 |
Q-RPTs A7M to A14M |
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| Precision1 | Standard Class Greater of ± 0.008% of reading or 0.0024% of Q-RPT span5Premium Class Greater of ± 0.005% of reading, 0.0015% of AutoRanged span or 0.0005% of Q-RPT span6 |
| Measurement Uncertainty3 | Standard Class Greater of ± 0.010% of reading or 0.0030% of Q-RPT span5Premium Class Greater of ± 0.008% of reading, 0.0024% of AutoRanged span or 0.0007% of Q-RPT span6 |
| Delivered Pressure Uncertainty (Dynamic Mode)4 | Standard Class Greater of ± 0.014% of reading or 0.004% of Q-RPT span5Premium Class Greater of ± 0.013% of reading, 0.014% of AutoRanged span or 0.003% of Q-RPT span6 |
Q-RPTs A20M to A100M |
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| Precision1 | Greater of ± 0.012% of reading or 0.0036% of Q-RPT span5 |
| Measurement Uncertainty3 | Greater of ± 0.013 % of reading or 0.004% of Q-RPT span5 |
| Delivered Pressure Uncertainty (Dynamic Mode) |
Greater of ± 0.016% of reading or 0.005% of Q-RPT span5 |
- Combined linearity, hysteresis and repeatability.
- Predicted Q-RPT measurement stability limit (k=2) over one year assuming regular use of AutoZero function. AutoZero occurs automatically in gauge mode whenever vented, by comparison with barometric reference in absolute mode. Absolute mode predicted one year stability without AutoZ is ± (0.005 % Q-RPT span + 0.005 % of reading).
- Maximum deviation of the Q-RPT indication from the true value of applied pressure including precision, predicted one year stability, temperature effect and calibration ncertainty, combined and expanded (k=2) following the ISO "Guide to the Expression of Uncertainty in Measurement."
- Maximum deviation of the PPCH-G controlled pressure from the true value including measurement uncertainty and standard dynamic mode control hold limit.
- % 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.
- % of reading value times measured pressure from 100 to 30 % of AutoRanged span. Under 30% of AutoRanged span, % of reading value times 30% of AutoRanged span. If AutoRanged span is less then 30% of maximum Q-RPT span, % of reading values times measured pressure, or % of reading times 9% of Q-RPT span, whichever is greater.
Accessory |
Description |
|---|---|
| Footswitch | Remote [ENTER] footswitch |
| PPCH-G 04-02 | SI Units version |
| PPCH-G 05-01 | CE mark |
| RS232 Cable | 9-pin, 2 m for PPC3 COM1 or PPC3-to-RPM4 connections |
| RPM4 | Reference pressure monitor for external Q-RPTs |
| PPCH-G 06-01 | Enclosure (for bench applications) |
| PPCH-G 07 | PPCH-G 07 |
| PPCH-G 08-SP | Special fluid |
| GB-H-152 Gas Booster Package | Gas booster package designed to provide a regulated high pressure gas output to PPCH-G |
Product manuals
Application notes
- Guide to Determining Pressure Measurement Uncertainty for Q RPT Based Products Technical Note
- How to Calibrate Reference Pressure Transducers with COMPASS for Pressure Software
Data sheets
Instruction sheets
- PPC Rack Mount Kit Installation Instructions
- PPC Test Port Connections Kit
- Q RPT Replacement Kit Instruction Sheet
- Replacing PPCH and PPCH G Valve Driver Board Instruction Sheet
