Appendix A — Test Records A-3 Test Records
ML248xx, ML249xA MM PN: 13000-00164 Rev. K A-3
ML248xx, ML249xA Firmware Revision: Operator:
Serial Number: Date: Options:
Error, Linearity and Range Change Calculations
From Error Measurements
in Above Table
Calculated (dB)
Specification (dB)
CH A & CH B
Results (Pass/Fail)
CH A CH B CH A CH B
Range 1 Abs Error
(R1U Meas–Expected Lvl)
–0.020 ≤ R1U ≤ 0.020
Range 1 Linearity
(R1U Error–R1L Error)
–0.040 ≤ R1U–R1L ≤ 0.040
Ranges 1-2 Change
(R1L Error–R2U Error)
–0.030 ≤ R1L–R2U ≤ 0.030
Range 2 Linearity
(R2U Error–R2L Error)
–0.040 ≤ 2RU–R2L ≤ 0.040
Ranges 2-3 Change
(R2L Error–R3U Error)
–0.030 ≤ R2L–R3U ≤ 0.030
Range 3 Abs Error
(R3U Meas–Expected Lvl)
–0.020 ≤ R3U ≤ 0.020
Range 3 Linearity
(R3U Error–R3L Error)
–0.040 ≤ R3U–R3L ≤ 0.040
Ranges 3-4 Change
(R3L Error–R4U Error)
–0.030 ≤ R3L–R4U ≤ 0.030
Range 4 Linearity
(R4U Error–R4L Error)
–0.040 ≤ R4U–R4L ≤ 0.040
Range 4-5 Change
(R4L Error–R5U Error)
–0.030 ≤ R4L–R5U ≤ 0.030
Range 5 Linearity
(R5U Error–R5L Error)
–0.040 ≤ R5U–R5L ≤ 0.040
Range 7 Abs Error
(R7U Meas–Expected Lvl)
–0.030 ≤ R7U ≤ 0.030
Range 8 Abs Error
(R8U Meas–Expected Lvl)
–0.030 ≤ R8U ≤ 0.030
Range 8 Linearity
(R8U Error–R8L Error)
–0.085
≤ R8U–R8L ≤ 0.085
Range 9 Abs Error
(R9U Meas–Expected Lvl)
–0.050 ≤ R9U ≤ 0.050
Range 9 Linearity
(9U Error–R9L Error)
–0.18 ≤ R9U–R9L ≤ 0.18