Solid State Sensors GT1 Series
Hall Effect Gear Tooth Sensors
Honeywell1SensingandControl11-800-537-6945USA1F1-815-235-6847International11-800-737-3360Canada53
SENSOR SPECIFICATIONS
All values were measured using 1 K pull-up resistor.
Electrical
Characteristics
Supply Voltage 4.5 to 24 VDC
Supply Current 10 mA typ., 20 mA max.
Output Voltage (output low) 0.4 V max.
Output Current (output high) 10 µA max. leakage into sensor
Switching Time
Rise (10 to 90%) 15 µsec. max.
Fall (90 to 10%) 1.0 µsec. max.
Absolute
Maximum
Ratings*
Supply Voltage (Vs) ±30 VDC continuous
Voltage Externally Applied
To Output (output high) –0.5 to +30 V
Output Current 40 mA sinking
Temperature Range
Storage –40 to 150° (– 40 to 302°F)
Operating –40 to 150° C(–40to302°F)
Switching
Characteristics**
Operate Point 3.7±1.25° (3,28±1,13 mm)
Release Point 4.7±2.50° (4,16±2,21 mm)
Differential Travel 8.4±3.70° (7,45±3,34 mm)
* As with all solid state components, sensor performance can be expected to deteriorate as
rating limits are approached; however, sensors will not be damaged unless the limits are
exceeded.
** See Reference Target table.
TARGET GUIDELINES
The Target Guidelines table provides ba-
sic parameters when an application is not
restricted to a specific target.
Any target wheel that exceeds the follow-
ing minimum specifications can be
sensed over the entire temperature range
of – 40
°
to 150
°
C with any sensing gap up
to .080 in. (2,0 mm). This data is based on
a 4 in. (102 mm) diameter wheel, rotating
10 to 3600 RPM.
Reference Target Dimensions
Tooth Height: .200 in. (5,06 mm) min.
Tooth Width: .100 in. (2,54 mm) min.
Tooth Spacing: .400 in. (10,16 mm) min.
Target Thickness: .250 in. (6,35 mm)
Sensor Output (with pull-up resistor add-
ed to output circuit)
REFERENCE TARGET/CONDITIONS
Characteristics will vary due to target size,
geometry, location, and material. Sensor
specifications were derived using a cold-
rolled steel reference target. See table,
right, for reference target configuration
and evaluation conditions.
Target
Diameter: 4 in. (101,6 mm)
Tooth Width: .350 in. (8,89 mm)
Thickness: .250 in. (6,35 mm)
Test Conditions
Air Gap: .040 to .080 in. (1,02 to 2,03 mm)
V Supply: 4.5 to 24 V
RPM: 10 min., 3600 max.
Integral Magnet
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