On-Board Barometer; Battery And Charger Pack - Fluke RPM4-AD Operation And Maintenance Manual

Reference pressure monitor, air data version

Table of Contents

RPM4-AD™ OPERATION AND MAINTENANCE MANUAL

RPM4-AD A350K/A160K (fixed wing)

1. Predicted Q-RPT measurement stability limit (k=2) over one year assuming regular use of AutoZero function. AutoZero is

2. Combined linearity, hysteresis, repeatability. Add + 1 Pa (0.00015 psi) in gauge mode for the resolution and short term

3. Maximum deviation of the Q-RPT indication from the true value of applied pressure including precision, predicted one year

4. % of reading applies to 30 to 100 % of Q-RPT span. Under 30 % of Q-RPT span, the value is a constant which is the % of

1.2.2.2

The on-board barometer is used only to measure changes in atmospheric

pressure to provide dynamic compensation of the Q-RPT's atmospheric pressure

offset when making gauge pressure measurements and when displaying altitude

while measuring airspeed.

1.2.3

BATTERY AND CHARGER PACK

Power Requirements

Operating Temperature Range

Storage Temperature Range

Approx. Run Time, Full Charge

LO Q-RPT

(absolute, gauge)

Used for: altitude

Precision

± 0.005 % of reading or

2.4 Pa, whichever is

greater

Measurement

± 0.008% of reading or

3.8 Pa, whichever is

Uncertainty

greater

performed by the operator: against zero pressure when vented in gauge mode, by direct comparison of one Q-RPT to the

other at the line pressure in differential mode, by comparison with a barometric reference in absolute mode. Absolute

mode predicted one year stability without AutoZ is ± (0.005 % Q-RPT span + 0.005 % of reading).

stability of the on-board barometer.

stability limit, temperature effect and calibration uncertainty, combined and expanded (k=2) following the ISO "Guide to the

Expression of Uncertainty in Measurement." Add + 1 Pa (0.00015 psi) when measuring airspeed and using the Lo Q-RPT

to display altitude.

reading value times 30 %.