Technical data
[90]
11.3
Output
Short-circuit prove
Yes
Nominal output voltage range
-2 V to -18 V
Limit range
-1.1 V to -21.6 V
Nominal frequency range
0 to 20 kHz (-3 dB) without cable capacity
11.4
Errors and tolerances
11.4.1
EZ 1000 with EZ 105x
Typical accuracy of the standard measuring chain following API 670 consisting of EZ 105x-
xx-xx-010, EZ 190x-040, and EZ 1000 with standard target material 42CrMo4 (AISI 4140)
and calibration methods
Manual
,
Automatic
, or
Multipoint
:
Table 11-1: Accuracy according to API 670
Temperature range
DSL
ISF
0°C to 45°C (Test range)
± 1.25
%
of MR
± 5
%
of nominal value
EZ 1000
-35°C to 65°C (Operating
range)
± 3.75
%
of MR
± 15
%
of nominal value
EZ 190x
-35°C to 65°C (Operating
range)
EZ 105x
-35°C to 120°C (Operating
range)
(1)
Measuring range
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 16.0 mV per micrometer best fit straight
line. DSL 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 16.0 mV per micrometer when measured at specified increments throughout the
linear range. Measurements are taken at 125 µm increments. ISF error is associated with
errors in radial vibration readings.
Basis of the data are measurements with:
•
EZ 1000 and EZ 190x at temperature of EZ 1000.
•
First meter of EZ 105x at temperature of EZ 105x.
Summary of Contents for AMS EZ1000
Page 39: ... 35 6 7 Control drawings ...
Page 40: ... 36 ...
