960A-0030121210 - Pressure Systems, Inc.

Pressure Systems, Inc.

A Weston Company of The Roxboro Group PLC

34 Research Drive

Hampton, VA 23666

USA

Phone: (757) 865-1243

Toll Free: 800-328-3665

Fax: (757) 865-8744

E-mail: sales@psih.com

Web: PressureSystems.com

Updates: PressureSystems.com/updates.html

Resource Center: LEVELandPRESSURE.com

PSI Ltd.

124, Victoria Road

Farnborough, Hants

GU14 7PW

United Kingdom

Phone: +44 1252 510000

Fax: +44 1252 510099

E-mail: psi@westonaero.com

Quartzonix™ Pressure Standard Series 960

Functional Diagram

Digital Pressure Standard

ISO-9001 Certified

FEATURES

!Ranges: Barometric and

15 to 500 psia FS (105 to 3400 kPa)

!±0.0001% FS Resolution

!±0.01% FS Accuracy

!±0.01% FS/6 month Stability

!Shock, Acceleration and Vibration Resistant

!Available with Oil-filled Capillary Tube for Water Level

Measurement

APPLICATIONS

!Flight Testing

!Calibration Transfer Standards

!Metrology

!Windtunnel/Turbine Test

!Oceanography

Series 960 Quartzonix™ Pressure Standards are

designed for use as a precision pressure transducer

where the highest levels of traceable accuracy and

stability are required. Quartzonix™ pressure

standards use a patented monolithic quartz resonator

to achieve unparalleled accuracy and stability.

Pressure is measured via a change in the resonant

frequency of an oscillating quartz beam by pressure-

induced stress. Quartzonix™ pressure standards

produce an output frequency between 30 and 45 kHz

and can achieve a pressure resolution of ±0.0001%

FS. The units provide conformance to a calibration

curve of better than ±0.01% FS and have long-term

stability of ±0.01% FS over a six month period.

Precise thermal compensation is provided via an

integrated quartz temperature sensor used to measure

the operating temperature of the transducer. The low

mass design of the sensing elements allows the

transducer to be employed in applications which

experience high acceleration, shock and vibrational

loads.

- 2 -

Series 960 Specifications

@ 25ºC unless otherwise stated

Parameter 960 Units Comments

PNEUMATICS

Pressure Ranges 11 - 16 (76 - 110)

15 (105)

23 (160)

30 (210)

45 (310)

65 (450)

100 (690)

200 (1380)

300 (2070)

500 (3400)

psia (kPa) Barometric only

Proof Pressure11.5 x FS

Burst Pressure22.0 x FS

Pressure Media Media compatible with 316SS,

nickel and solder

Pressure Fitting c" compression

STATIC PERFORMANCE

Resolution3±0.0001 % FS

Pressure Hysteresis ±0.005 % FS

Static Accuracy4±0.01 % FS

Maximum Deviation

over Temperature5±0.015 %FS over specified temperature

range

Thermal Hysteresis ±0.005 % FS over specified temperature

range

Long Term Drift ±0.01 % FS 6 months, maximum

ELECTRICAL

Pressure Signal6

Temperature Signal 45-30

172 kHz

kHz nominal

+45 ppm/ºC

Output Signal 4volt

P-P square wave

capacitively coupled

Turn on Time 30 m sec

Power Requirements 8-15 VDC 2 mA @ 8V

Electrical Connection 8 ea. #30 AWG flying leads

Notes:

1Maximum applied pressure without causing a calibration shift.

2Maximum applied pressure without causing permanent damage to quartz sensing element.

3Achievable resolution using gate time of ½ second for frequency counter with 20.000 MHz time base. Increased or decreased resolution

may be obtained be lengthening or shortening gate times.

4Calibration conformance to a primary pressure standard after calibration.

5Maximum error at any pressure within calibrated temperature range using supplied calibration coefficients/equations.

6Nominal 10% frequency change with full scale pressure.

Specifications subject to change without notice.

- 3 -

Specifications Series 960

Interface Diagram

@ 25ºC unless otherwise stated

Parameter 960 Units Comments

ENVIRONMENTAL

Calibrated Temp Range 0 to 60

-20 to 70 (optional) ºC

Acceleration Sensitivity ±0.004 % FS/G worst axis

Vibration Sensitivity ±0.001 % FS/G 20G peak, 10 Hz - 2 kHz

Maximum Shock 200 G/10 msec ½ sine

PHYSICAL

Size 1.73 x 1.73 x 1.35 (4.4 x 4.4 x 3.4) in (cm)

Weight 9.5 (270) oz. (gms)

Note: Transducer calibration coefficients are stored within an on-board serial EEPROM.

Specifications subject to change without notice.

- 4 -

Series 960 Ordering/Part Number Information

No. 0301

Ordering Information:

PN: 960A-AAAABCDEFF Model 960 Pressure Standard, ±0.01% FS Accuracy

AAAA = Pressure Range

BARO, Barometric 11-16 psia (76-110 kPa)

0015, 15 psia (105 kPa)

0023, 23 psia (160 kPa)

0030, 30 psia (210 kPa)

0045, 45 psia (310 kPa)

0065, 65 psia (450 kPa)

0100, 100 psia (690 kPa)

0200, 200 psia (1380 kPa)

0300, 300 psia (2070 kPa)

0500, 500 psia (3400 kPa)

B = Pressure Fitting

1, c” Swagelok C = Electrical Termination

1, Flying Leads

2, 9 pin D-shell (For use with Model 9600 Pressure Gage)

D = Pressure Calibration

1, Standard E = Calibrated Temperature Range

1, 0 to 60ºC

2, -20 to 70ºC

FF = Specials

00, Standard

10, Oil-filled capillary