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Operating Manual
MHM-97884
Table 11-9: Sensor temperature inaccuracies
Measuring range
8 mm
(Extended range factor: 2.0)
12 mm
(Extended range factor: 3.0)
1
Stated linearity errors apply to maximum cable lengths and maximum temperatures. Linearity
errors for shorter cables and lower temperatures are lower. Contact support for details.
11.4.5
AMS EZ 1000 Converter with PR 6424
Typical accuracy of the standard measuring chain following API 670 consisting of PR
6424/0xx-x00 andAMS EZ 1000 Converter with standard target material 42CrMo4 (AISI
4140) and calibration methods Automatic or Multipoint.
Table 11-10: Accuracy following API 670
Temperature range
0°C to 45°C
1
Measuring range
2
Requires previous Automatic calibration, see
sensors
The deviation from straight line (DSL) error is the maximum error (in mm) in the sensor
gap reading at a given voltage compared to a 4.0 mV per micrometer best fit straight line.
DLS errors are associated with errors in axial position or sensor gap readings.
The incremental scale factor (ISF) error is the maximum amount the scale factor varies
from 4.0 mV per micrometer when measured at specified increments throughout the
linear range. Measurements are taken at 500 µm increments. The ISF error is associated
with errors in radial vibration readings.
MHM-97884, Rev. 1.8
Temperature range
0°C to +45°C
(Test range converter)
-35°C to +85°C
(Operating range converter)
0°C to +45°C
(Test range sensor)
-35°C to +150°C
(Operating range sensor)
0°C to +45°C
(Test range converter)
-35°C to +85°C
(Operating range converter)
0°C to +45°C
(Test range sensor)
-35°C to +150°C
(Operating range sensor)
Automatic calibration
2
Multipoint calibration
(continued)
Additional linearity error
±3.0%
± 8.0%
±2.0%
± 12.0%
± 6.0%
± 10.0%
± 3.0%
± 15.0%
DSL
1
± 3.0% of MR
1
± 2.0% of MR
Calibration – PR 6424, PR 6425, and PR 6426
Technical data
October 2023
1
ISF
± 15% of nominal value
± 15% of nominal value
115
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