Glass Mid-Range 0715-4101-990 pages
DATA SHEET
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Operating Specifications
Description
The 0715-4101-99 Sensor has been used successfully in
applications that demand a high accuracy for wider-angle
ranges. This sensor provides excellent stability, good
repeatability at null and angles, over time and a wide range of
temperatures. The hermetic glass to metal construction and
solid platinum electrodes guarantee a long operating life and
consistent operating characteristics.
Angle Range
Resolution
Null Repeat
9
12 arc sec.
1-arc sec.
Applications Include
Automobile Wheel Alignment
Aircraft Avionics
Geophysical Monitoring
Machine Tool Leveling
Medical Positioning and Monitoring
1
2
Physical Dimensions
Vial length
Vial diameter
Lead length
Impedance of the electrolyte may be changed to limit null
current
Viscosity of the electrolyte may be modified to meet
individual requirements to reduce vibration
1.23” (31.2mm)
0.36” (9.1mm)
6.0” (152.4mm)
Sensor Test Circuitry
Tests were conducted by exciting the left and right electrodes
with an AC signal of 400 Hz and an rms voltage to produce the
maximum current at null as per operating specifications. Output
readings are taken between the center electrode and the center
of the balanced resistors R1 and R2. Tests were conducted at a
temperature of +25 C. See sensor test circuitry in figure 3.
Output curve is shown in figure 1.
OUTPUT SENSITIVITY
Figure 1
100
PERCENT OUTPUT
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9
Operating Range (max.)
Linear Range
± 3°
Null Voltage
≤0.010 Volts
Null Current(max.)
2.5 mA (continuous)
Null Impedance (nom)1
6000 Ohms (25°C)
(measured left to right electrode)see fig. 2
Null Repeatability
< 12 arc seconds
Resolution
< 1 arc minute
Symmetry (typ)
< 20 %
-20 C to +50 C
Operating Temperature
-50 C to +100 C
Storage Temperature
Time Constant (1) 2
< 500 msec
Materials
non-magnetic
± 0.5 arc seconds / C
Temperature coefficient
at null (when properly mounted)
80
60
40
20
0
-9
-6
-3
0
3
6
9
TILT ANGLE (degrees)
Descrition of Test Values
IMPEDANCE/ TEMPERATURE
Figure 2
Eout = Angle of tilt from null
(Direction of tilt
determined by phase of
Eout)
R1 =R2 = ½ Null Impedance
(nom)
Caution!-Ensure that all test and operating circuits are
entirely free of direct current. Direct current will cause level
damage and/or instability.
IMPEDANCE
K-Ohms
AC input voltage = Null
Current (max) times Null
Impedance (nom)
20
18
16
14
12
10
8
6
4
2
0
-20
-10
0
10
20
TEMPERATURE ( degrees C)
The Fredericks Company l 2400 Philmont Ave ● HuntingdonValley, PA 19006-0067
Tel: 215.947.2500 l Fax: 215.947.7464 l Email: sales@frederickscom.com l www.frederickscom.com
0715-4101-99data sheet Revision: B
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