Glass Mid-Range 0714-5701-990 pages

DATA SHEET

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Operating Specifications

Description
The 0714-5701-99 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

12
10 arc sec.
12-arc sec.

Applications Include
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Automobile Wheel Alignment
Aircraft Avionics
Geophysical Monitoring
Machine Tool Leveling
Medical Positioning and Monitoring

1

2

Physical Dimensions
Vial length
Vial diameter
Lead length
Lead spacing

12
Operating Range (max.)
Linear Range
±5°
Null Voltage
≤0.030 Volts
Null Current(max.)
11.0 mA (continuous)
Null Impedance (nom)1
1000 Ohms (25°C)
(measured left to right electrode)see fig. 2
Null Repeatability
< 12 arc seconds
Resolution
< 10 arc seconds
Symmetry (typ)
< 20 %
-20 C to +50 C
Operating Temperature
-50 C to +100 C
Storage Temperature
Time Constant (1) 2
< 1 sec
Materials
non-magnetic
± 0.5 arc seconds / C
Temperature coefficient
at null (when properly mounted)
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

OUTPUT SENSITIVITY

2.437” (61.9mm)
0.5” (12.7mm)
0.187” (4.7mm)
0.75” (19.1mm)

Figure 1
100

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.

PERCENT OUTPUT

80
60
40
20
0
-12

-8

-4
0
4
TILT ANGLE (degrees)

8

12

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 (ohms)

AC input voltage = Null
Current (max) times Null
Impedance (nom)

8000
7000
6000
5000
4000
3000
2000
1000
0
-20

-10

0

10

20

30

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
0714-5701-99data sheet Revision: A

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