Fluke RPM4 manual Calibration Point Sequence, Premium Class BGxxx Q-RPTs

5. MAINTENANCE, ADJUSTMENTS AND CALIBRATIONS

Table 25. Calibration Point Sequence, Premium Class,

Axxx and Gxxx Q-RPTs

CALIBRATION	POINT
SEGMENT	NO.
	1
	2
	3
	4
Ascending	5
	6
	7
	8
	9
	10
	11
	12
Descending	13
	14
	15

POINT

[% OF SPAN]

Lowest Pressure1

5%

10%

15%

20%

30%

40%

50%

60%

80%

100%

80%

50%

20%

Lowest Pressure1

1In absolute mode, lowest point that can be set reliably by the reference piston gauge. Zero (vented) in gauge mode.

Axxx (absolute) Q-RPTs that will NOT be used in absolute or negative gauge measurement modes may be calibrated in gauge measurement mode with a gauge pressure standard. Axxx (absolute) Q-RPTs calibrated in gauge measurement mode should be used in gauge mode only (see Section 5.2.5).

Table 26. Calibration Point Sequence, Premium Class,

BGxxx Q-RPTs

CALIBRATION	POINT
SEGMENT	NO.
	1
	2
	3
	4
Ascending	5
	6
	7
	8
	9
	10
	11
	12
Descending	13
	14
	15

POINT

[% OF SPAN]1

0%

15%

30%

40%

45%

50%

55%

60%

70%

85%

100%

70%

50%

30%

0%

1.The BG15K span is – 15 to + 15 kPa, 30 kPa total. Therefore, 0 % is – 15 kPa, 25 % is – 7.5 kPa, 100 % is + 15 kPa, etc.

BGxxx (bi-directional gauge) Q-RPTs that will not be used in negative gauge measurement mode may be calibrated in gauge (positive pressures) measurement mode only. Use the Premium Class gauge mode (Gxxx) calibration point sequence (see Table 25). BGxxx Q-RPTs calibrated in gauge measurement mode only should not be used in negative gauge mode.

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