TrueTILT? Wide Range 0717-4319-990 pages

DATA SHEET

Patent 6,249,984

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Angle Range
Resolution
Repeatability

50
±0.2 arc minutes (.003°)
± 0.1°

Applications Include
Wheel Alignment
Navigation and GPS Compensation
Automotive Roll Over
RV (Recreational Vehicle Leveling)
Medical and Physical Feedback Instruments

Physical Dimensions
Height
Diameter – Cap
Diameter Flange
Lead Length
Lead Diameter
Lead Spacing (center to center)

0.530” (13.5mm)
0.325” (8.25mm)
0.360” (9.14mm)
0.20” (5.0mm)
0.020” (0.5mm)
0.1” (2.5mm)

Sensor Test Circuitry
Tests were conducted by exciting the outer electrodes of a
single axis 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 test
circuitry in figure 3. Output curve is shown in figure 1.

50
Operating Range (max.)
Linear Range
± 25°
Null Voltage
≤0.03 Volts
Null Current(max.)
0.2 mA (continuous)
Null Impedance (nom)
50 K Ohms (25°C)
(measured left to right electrode) see fig. 2
Repeatability
±0.1°
Resolution
< 0.2 arc minutes
Symmetry (typ)
5%
Null Offset (max)
5.0°
Mech. Crosstalk/Deg. (to 20°)
0.025°
Temperature coefficient
Null
20 arc sec /°C
Scale
0.1% /°C
Stability @24 Hrs.
±0.1°
-40 C to +85 C
Operating Temperature
-55 C to +100 C
Storage Temperature
Time Constant (1)
< 100 msec
Materials
magnetic
NOTE: Output sensitivity’s scale factor may be modified to
individual requirements upon special order.

OUTPUT SENSITIVITY
Figure 1
100
PERCENT OUTPUT

The 0717-4319-99 TrueTILT sensor represents a new
advancement in dual axis low cost electrolytic tilt sensor
technology. Robust all metal construction provides durability
as well as superior dimensional tolerances, which equates to
excellent sensor-to-sensor electrical performance. This sensor
is ideal for economical, commercial market applications
requiring high production quantities and first-rate accuracy.

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TrueTilt

Operating Specifications

Description

80
60
40
20
0
-60

0
TILT ANGLE (degrees)

60

Description of Test Values
IM P E D A N C E vs T E M P E R A T U R E

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

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.

250

( K O h m s)

IM P E D A N C E

Eout = Angle of tilt from null
(Direction of tilt
determined by phase of
Eout)

F ig u r e 2
300

200
150
100
50
0
-4 5

-2 5

-5

15

35

55

T E M P E R A T U R E (d e g r e e s 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
0717-4319-99data sheet Revision: B

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