PG9607 Piston Gauge
Refined 50 mm piston-cylinder design
PG9607’s piston-cylinder assembly builds upon more than 15 years of design, manufacture and calibration of 50 mm piston-cylinders. PC-9607-5 is a 5 kPa/kg piston-cylinder with a stationary piston and floating cylinder design. Improved manufacturing and testing methods are used to produce a very low distortion assembly. The 50 mm piston-cylinder provides exceptional performance up to 500 kPa with a 100 kg mass load. The PG9607 mounting post allows an independent controlled clearance pressure to be applied to the inside of the piston, thus predictably varying the size of the gap between the piston and cylinder for advanced study
Innovations to minimize uncertainty
Two decades ago, DH Instruments PG7000 family of piston gauges introduced the advantages of on-board sensing and monitoring technology, as well as other performance and ergonomic enhancements. The PG9000 platform adds several innovations to improve pressure measurements even further.
The platform consists of a PG terminal, a piston gauge base and a new remote electronics module. The terminal is the user interface. It stores metrological component data, reports operating and ambient condition status and calculates pressure.
The PG9000 piston gauge base supports automatic piston-cylinder rotation and mass handling, but all of the electronics to support the sensors and rotation control have been relocated to a remote electronics module. This architecture supports the best possible temperature stability at the base, even with prolonged vacuum operation, since any significant sources of heat are located away from the base.
The PG9607 mounting post has two integrated PRTs for reduced piston-cylinder temperature uncertainty. The PRTs are easily removed for calibration. A capacitance diaphragm gauge is included in the optional vacuum reference hardware for making residual vacuum measurements in absolute mode. PG9607 can also integrate the measurement output from virtually any user-supplied vacuum sensor.
Metrology supported by automation
AMH automated mass handling technology is expanded on PG9607 to provide gauge and absolute operation with up to a 100 kg mass load. Eliminating manual mass loading minimizes mechanical wear, improving mass stability. The automated mass handler operates inside the evacuated bell jar, so the time to release and draw a vacuum while changing masses between test points is eliminated. The sustained vacuum produces lower and more static residual vacuum values. Total test time and productivity are greatly improved, especially on absolute pressure tests. More importantly, full automation promotes highly consistent measurements and allows extensive tests with many test points that would be impractical to perform manually. And with the help of calibration management software like COMPASS® for Pressure, tests can be run fully unattended.
Automated primary pressure reference for absolute and gauge pressures to 500 kPa
The PG9607 is the next generation of absolute pressure piston gauge from Fluke Calibration. It supports the use of a 100 kg mass set to define gauge and absolute pressures from 11 to 500 kPa with a single piston-cylinder.
This piston gauge is designed for use as a true primary pressure reference in metrology and research institutes. Its performance is centered around a 50 mm piston-cylinder assembly with dimensional characteristics suitable for low-uncertainty dimensional traceability. The piston mounting post allows controlled clearance operation and reduced uncertainty on piston-cylinder temperature measurement. The new platform architecture promotes improved temperature stability around the piston-cylinder.
PG9607 features AMH automated mass handling technology to allow fully automated testing in both gauge and absolute mode. Manual steps are removed from its operation, saving time and delivering metrological advantages. When AMH is coupled with automatic pressure control and computer software, repeated and extended tests become practical, making PG9607 a powerful calibration and research tool.
PG9607 is the result of Fluke Calibration’s extensive work with national metrology institutes (NMIs) to minimize pressure measurement uncertainty and years of supplying PG7000 piston gauges to NMIs and other top pressure metrology labs worldwide.
||85/264 V ac, 50/60 Hz, 22 VA maximum consumption
||Operating : 15 °C to 35 °C (59 °F to 95 °F)
Storage : -20 °C to 70 °C (-4 °F to 158 °F)
||Operating : 5 % to 95 % RH, non-condensing
||Instrument platform with no mass or piston-cylinder loaded
PG9607 (without vacuum hardware) : 34 kg (74 lb)
Remote electronics module : 1.9 kg (4 lb)
PG terminal : 1.4 kg (3 lb)
Optional vacuum reference hardware : 16 kg (36 lb)
|Dimensions (H x W x D)
||PG9607 base (without vacuum hardware) :
34.1 cm x 54.3 cm x 52.3 cm (13.4 in x 21.4 in x 20.6 in)
(Height : top of piston-cylinder assembly)PG9607 base (with optional vacuum bell jar and vacuum gauge connected) :
56 cm x 54.3 cm x 52.3 cm (22 in x 21.4 in x 20.6 in)
(Height : Top of bell jar)Remote electronics module : 10.2 cm x 35.1 cm x 19.6 cm (4 in x 13.8 in x 7.7 in)PG terminal : 12 cm x 15 cm x 20 cm (4.7 in x 5.9 in x 7.9 in)
||Instrument platform : Motorola 68302
PG terminal : Hitachi 64180
COM 1 : Host computer
COM 2 : Residual vacuum sensor (external)
COM 3 : Automated pressure controller COM 4 : Unused/spare
IEEE-488 Host computer
|Overall pressure range
||Gauge : 11 kPa to 500 kPa, 0.11 bar to 5 bar, (1.6 to 72.5 psi)1
Absolute : 11 kPa to 500 kPa, 0.11 bar to 5 bar, (1.6 to 72.5 psi)1
||Gas : nitrogen, helium, dry air (dewpoint ≤ -40 ºC)
|Maximum mass load
||PG 9607 base
Test port : DH200*
Controlled clearance pressure : DH200*
* Gland and collar fitting for 6.35 mm (0.25 in) coned and left hand threaded tubes. Equivalent to AE SF250C, HIP LF4, etc.AMH drive
Quick connector equivalent to Swagelok QM Series (QM2-B-200). Use with DESO (double end shut off) type stem.AMH vent
Quick connector equivalent to Swagelok QM Series (QM2-B-200). Use with SESO (single end shut off) type stem only.Remote electronics module
ATM port: 10-32 UNF
Vacuum bell jar 3x 40 mm ISO/KF flange, 1x 50 mm ISO/KF flange (top)
All PG9000 models conform to CE requirements
1 MS-AMH-100 mass set contains approximately 104.5 kg of mass. Combined with the piston or cylinder and bell assembly, total mass loads may be up to 106 kg, resulting in pressures of up to 530 kPa (5.3 bar, 76.9 psi).
|AMH-100-VAC Automated Mass Handler (optional)
||15 V dc @ 2 A, 30 W max. consumption
||Operating: 15 ºC to 35 ºC (59 °F to 95 °F)
|Dimensions (H x W x D)
||41 cm x 41 cm x 36 cm (16.3 in x 16.1 in x 14.1 in)
||12 kg (25 lbs)
||Custom 8-pin connector
|AMH drive air supply
||550 kPa (80 psi), ± 10 %, minimal flow
|AMH vacuum supply
||At least 50 kPa (7.5 pi) under atmosphere, minimal flow
||Pressure : Quick connector DESO (double end shut off) type stem
Vacuum : Quick connector SESO (single end shut off) type stem
|Piston-cylinder assembly (PC-9607-5)
|The piston is mounted in a fixed position on the mounting post. The cylinder floats and is rotated.
||50 mm (1.97 in)
||Free deformation with controlled clearance pressure (CCP) available on inside of piston.
|Typical drop rate (Full mass load)
||< 0.25 mm/min (0.009 in/min) at 500 kPa
|All masses are delivered in molded, reusable, transit cases with custom inserts.
||Material : 304L non-magnetic stainless steelFinish : Electropolished
Adjustment tolerance : ± 20 ppm of nominal value
(manual mass sets, AMH automated mass handler mass sets do not have fixed adjustment tolerances)
Uncertainty of measured values : ± 5 ppm or 1 mg, whichever is greater
Uncertainty of measured values : ± 1 mg
|For uncertainty in piston-cylinder effective area and typical measurement uncertainty in pressure defined by the piston gauge, see the piston-cylinder calibration report and current revision of Technical Note 0180TN12 Typical Pressure Measurement Uncertainty Defined by a PG9607 or PG9602 Piston Gauge.
||0.005 Pa + 0.5 ppm
||± 2 ppm + 0.05 Pa
 Sensitivity : The smallest variation in input detectable in output.
 Reproducibility : The root sum square of the stability of effective area and stability of the AMH-100 mass set for 1 year.
Ambient and instrument condition measurements
||Range : 0 °C to 40 °C (32 °F to 104 °F)
Resolution : 0.1 °C (32.18 °F)
Measurement uncertainty : ± 1 °C (33.8 °F)
|Temperature (Piston-cylinder module)
||Range : 0 °C to 40 °C (32 °F to 104 °F)
Resolution : 0.01 °C (32.02)
Measurement uncertainty : ± 0.1 °C (32.18 °F)
|Barometric pressure with internal sensor
||Range : 70 kPa to 110 kPa
Resolution : 10 Pa Measurement uncertainty : ± 140 PaBarometric pressure can also be read automatically with any RS-232 device such as a DHI RPM.
||Range : 5 % to 95 % RH
Resolution : 1 % RH
Measurement uncertainty : ± 10 % RH
||Range : ± 4.5 mm
Resolution : 0.1 mm
|Piston rotation (Rate and deceleration)
||Range : 2 rpm to 99 rpm Resolution: 1 rpm
||Range : 0 Pa to 13 Pa
Resolution : 0.01 Pa
Measurement uncertainty : ± 0.05 Pa + 0.5 % of reading