DH Instruments PPC4, Руководство по эксплуатации и обслуживанию

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1. INTRODUCTION
Page 3 © 2009 DH Instruments, a Fluke Company
RPT
DESIGNATION
SI VERSION US VERSION
MAXIMUM
PRESSURE
Absolute
[kPa]
MAXIMUM
PRESSURE
Gauge
[kPa]
MAXIMUM
PRESSURE
Absolute
[psi]
MAXIMUM
PRESSURE
Gauge
[psi]
A100K
1
110 10 16 1.5
G200K
2
- - 200 - - 30
G100K
2
- - 100 - - 15
G15K
2
- - 15 - - 2.2
BG15K
3
- - -15 to 15 - - -2.2 to 2.2
BA100K
4
70 to 110 - 10.2 to 16 - -
1. All AXXXX RPTs support absolute, gauge and compound (negative) gauge modes.
2. All GXXXX RPTs are positive gauge mode only.
3. BG15K is bi-directional gauge from - 15 to + 15 kPa (- 2.2 to + 2.2 psi).
4. BA100K is a barometric range whose low point is 70 kPa absolute (10 psi).
Warm Up Time None required, 30 minute temperature stabilization recommended for best performance from
cold power up
Resolution
To 1 ppm, user adjustable
Acceleration Effect ± 0.008 % /g maximum, worst axis
Allows operation at ± 20° from reference plane without significant effect
Predicted One Year Stability
1
± 0.005% of reading (gauge mode, or absolute with regular use of AutoZero)
Full Scale Standard (f) Standard (s) Premium (p)
Precision
2 ±
0.011% of AutoRanged span
4
± 0.008% of reading or 0.0024%
of Q-RPT span, whichever
is greater
5
± 0.005% of reading, 0.0015% of
AutoRanged span, or 0.0005% of
Q-RPT span, whichever
is greater
6
Measurement Uncertainty
3
± 0.015% of AutoRanged span
4
± 0.01% of reading or 0.0030%
of Q-RPT span, whichever
is greater
5
± 0.008 % of reading, 0.0024% of
AutoRanged span, or 0.0007% of
Q-RPT span, whichever
is greater
6
1. 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).
2. Combined linearity, hysteresis, repeatability. Add + 1 Pa (0.00015 psi) in gauge mode with an Axxx (absolute) Q-RPT for the resolution and short term stability
of the on-board barometer.
3. Maximum deviation of the Q-RPT indication from the true value of applied pressure including precision, predicted one year stability limit, temperature effect and
calibration uncertainty, combined and expanded (k=2) following the ISO “Guide to the Expression of Uncertainty in Measurement.”
4. % of AutoRanged span, but with AutoRanged span no lower than 30% of Q-RPT span (10% with BG15K and G15K). For example, if the Q-RPT is a Full Scale
Standard A160K, the Measurement Uncertainty in pressure is 0.015% times the AutoRanged span for any AutoRanged span from 160 kPa to 48 kPa (160 kPa
span x 30%) and 7.2 Pa (160 kPa span x 30% x 0.015%) for any AutoRanged span less than 48 kPa.
5. % of reading value times measured pressure from 100 to 30 % of Q-RPT span. Under 30 % of Q-RPT span, % of reading value times 30 % of Q-RPT span.
For example, if the Q-RPT is a Standard A160K, the Measurement Uncertainty in pressure is 0.010% times the measured pressure to 48 kPa (160 kPa span x
30%) and 0.0048 kPa (160 kPa span x 30% x 0.01%) under 48 kPa.
6. % 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. For example, if the Q-RPT is a Premium A160K and AutoRanged span is 160 kPa, the Measurement Uncertainty in
pressure is measured pressure x 0.008% to 48 kPa (160 kPa AutoRanged span x 30%) and 0.0038 kPa (160 kPa span x 30% x 0.008%) under 48 kPa. If the
AutoRanged span is 100 kPa (greater than 30% of 160 kPa maximum Q-RPT span), the measurement uncertainty in pressure is measured pressure x 0.008%
to 30 kPa (100 kPa AutoRanged span x 30%) and 0.0024 kPa (100 kPa span x 30% x 0.008%) under 30 kPa. If the AutoRanged span is 30 kPa (less than 30%
of the 160 kPa maximum Q-RPT span), the measurement uncertainty in pressure is measured pressure x 0.008% to 14.4 kPa (160 kPa maximum Q-RPT span
x 9%) and 0.0012 kPa (160 kPa maximum Q-RPT span x 9% x 0.008%) under 14.4 kPa.
Note: DHI technical note 8050TN11 provides a detailed description of PPC4 Q-RPT uncertainties.