Gas pressure up to 11 MPa

PG7102 covers gauge and absolute pressures above atmosphere with gas as the pressurized medium. Absolute mode is supported by automated measurement and addition of atmospheric pressure, using PG7102’s internal barometer or any external barometer supporting RS-232 communications. PG7102 does not cover absolute or gauge pressures below atmospheric pressure.

The PG7102 includes all PG7000 standard features (see "Description" tab) as well as:

  • Simplified gas operated platform does not include vacuum reference capability.
  • Accepts same gas operated piston-cylinder modules as PG7601 platform.

General

Power requirements 85 V ac to 264 V ac, 47 Hz to 440 Hz, 22 VA max consumption
Normal operating temperature range 18 °C to 28 °C (64 °F to 82 °F)
Weight Instrument platform with no mass loaded:
PG7302 13 kg (28 lb)
PG terminal 1.4 kg (3 lb)
Dimensions Instrument platform (HxWxD): 36 cm x 40 cm x 35 cm (14.5 in x 15.8 in x 13.8 in)
Height: Top of mounting post with piston-cylinder module installed
PG terminal (HxWxD): 12 cm x 15 cm x 20 cm (4.7 in x 5.9 in x 7.9 in)
Communications ports RS-232 COM1: Host computer
COM2: AMH automated mass handler, external barometer
COM3: Automated pressure controller
IEEE-488.2: Host computer
Maximum pressure ranges Actual range depends on piston-cylinder and mass set selection.
Operating media Oil: ethyl hexyl Sebacate (oil)
Maximum mass load 100 kg
Pressure connections Test port: DH500

 

Note: DH200 and DH500 are gland and collar type fittings for 1/4 in (6 mm) coned and left hand threaded tube. DH200 is equivalent to AE SF250C, HIP LF4, etc. DH500 is equivalent to AE F250C, HIP HF4, etc.

CE conformance Available, must be specified

Masses

Mass set specifications All masses are delivered in molded, reusable transit cases with custom inserts.
Masses Material: 304L non-magnetic stainless steel

 

Finish: Electropolished

Adjustment tolerance: ± 20 ppm of nominal value Accuracy of measured values: ± 5 ppm or 1 mg, whichever is greater

Traceability of measured values: National Institute of Standards and Technology (NIST)

Ambient and instrument condition measurements

Piston-Cylinder Temperature Range: 0 to 40 degrees C
Resolution: 0.01 degrees C
Accuracy: ± 0.1 degrees C
Ambient Temperature Range: 0 to 40 degrees C
Resolution: 0.1 degrees C
Accuracy: ± 1 degrees C
Barometric pressure with
internal sensor
Range: 70 kPa to 110 kPa
Resolution: 10 Pa
Accuracy: ± 140 Pa

 

Barometric pressure can also be read automatically from any RS-232 device such as RPM4

Relative humidity Range: 5 % to 95 % RH
Resolution: 1 % RH
Accuracy: ± 10 % RH
Piston position Range: ± 4.5 mm
Resolution: 0.1 mm
Piston rotation (rate and
deceleration)
Range: 2 to 150 rpm
Resolution: 1 rpm

Pressure measurement

PG7302

PC-7300-100
Sensitivity1: 2 Pa + 1 ppm
Reproducability2: ± 5 ppm
Typical measurement uncertainty3: ± (16 Pa + 18 ppm)
Typical drop rate (50 kg): 0.02 mm/min

PC-7300-200
Sensitivity1: 4 Pa + 1 ppm
Reproducability2: ± 5 ppm
Typical measurement uncertainty3: ± (16 Pa + 20 ppm)
Typical drop rate (50 kg): 0.04 mm/min

PC-7300-500
Sensitivity1: 10 Pa + 1 ppm
Reproducability2: ± 5 ppm
Typical measurement uncertainty3: ±(20 Pa + 20 ppm)
Typical drop rate (50 kg): 0.2 mm/min

PC-7300-1
Sensitivity1: 20 Pa + 1 ppm
Reproducability2: +/- 5 ppm
Typical measurement uncertainty3: ± (25 Pa + 25 ppm)
Typical drop rate (50 kg): 0.2 mm/min

PC-7300-2
Sensitivity1: 40 Pa + 1 ppm
Reproducability2: ± 5 ppm
Typical measurement uncertainty3: ± (40 Pa + 25 ppm + 0.04 ppm/MPa)
Typical drop rate (50 kg): 0.40 mm/min

PC-7300-5
Sensitivity1: 100 Pa + 1 ppm
Reproducability2: ± 5 ppm
Typical measurement uncertainty3: ± (100 Pa + 35 ppm + 0.04 ppm/MPa)
Typical drop rate (50 kg): 1.00 mm/min

 

1 Sensitivity: The smallest variation in input detectable in output.
2 Reproducibility: Combined long term stability of piston cylinder effective area and masses

Pressure measurement uncertainty Typical pressure measurement uncertainty All sources of uncertainty under typical operating conditions are identified, quantified and combined following ISO/TAG4/WG3. The result is rounded upwards to provide conservative global uncertainty figures for the typical user under typical conditions.

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