Installation Instructions for the
SR2 Series Hall-Effect Position Sensors
ELECTRICAL AND MAGNETIC
SPECIFICATIONS
Supply Voltage, VDC
Supply Current, mA max.
Output Type
Output Voltage, max.
Output Current, mA max.
Magnetic Type*
Max. Op.
-40 to 100°C
Min. Rel.
Min. Diff.
Typ. Op.
SR2C-B4
4.5 to 24
10
NPN
0.40 V
40
Unipolar
220
50
8
150
ISSUE 2
PK 88581
MOUNTING DIMENSIONS
(for reference only)
+25°C
Typ. Rel.
80
Typ. Diff.
10
* A unipolar sensor has a plus maximum operate point
and a plus minimum release point. One magnetic pole
(south) is required to operate and release a unipolar
sensor.
1SR15 Mounting Bracket
ABSOLUTE MAXIMUM RATINGS*
Parameters
Supply Voltage (Vs)
Voltage Externally
Applied to Output
Output Current
Temperature, Operate
and Storage
4.5 to 24 VDC Circuit
-1.0 to +25 VDC
-0.5 V max. (ON or OFF)
+25 V max. (OFF only)
40 mA
-40 to +100°C
(-40 to +212°F)
Magnetic Flux
No limit. Circuit cannot be
damaged by magnetic
overdrive.
* Absolute maximum ratings are the extreme limits that
the device will withstand without damage to the device.
However, the electrical and magnetic characteristics
are not guaranteed as the maximum limits (above
recommended operating conditions) are approached,
nor will the device necessarily operate at absolute
maximum rating.
LEADWIRE COLOR CODE
Red
Black
White
Vs (+)
Ground (-)
Output (Digital)
NOTICE
Do not
reverse supply voltage polarity.
Do not
exceed maximum ratings.
Sensing and Control
SR2 Series
TROUBLESHOOTING
If sensor does not operate, follow these steps:
1. Make certain wiring is correct (load must be
connected).
2. Measure supply voltage across the Red (+) and
Black (-) leads to verify that proper supply voltage
is present.
3. Connect positive lead of voltmeter to White
(output) lead, and negative voltmeter lead to
Black (-) lead. With magnet removed (or north
pole present), the reading should equal Vs.
4. When the magnet (south pole) moves toward
sensor face (beyond operating point), the sensor
output should be 0.40 VDC.
WARRANTY/REMEDY
Honeywell warrants goods of its manufacture as
being free of defective materials and faulty
workmanship. Commencing with date of shipment,
Honeywell’s warranty runs for 18 months. If
warranted goods are returned to Honeywell during
that period of coverage, Honeywell will repair or
replace without charge those items it finds
defective. The foregoing is Buyer’s sole remedy
and is
in lieu of all other warranties, expressed
or implied, including those of merchantability
and fitness for a particular purpose.
For application assistance, current specifications,
pricing or name of the nearest Authorized
Distributor, contact a nearby sales office. Or call:
1-800-537-6945 USA
1-416-293-8111 Canada
1-815-235-6847 International
http://www.honeywell.sensing.com
info.sc@honeywell.com
Specifications not affecting form, fit or function
may change without notice. The information we
supply is believed to be accurate and reliable as of
this printing. However, we assume no responsibility
for its use.
While we provide application assistance,
personally and through our literature, it is up to the
customer to determine the suitability of the product
in the application.
PK 88581
CURRENT SINKING OUTPUTS
(Current flow through load into sensor.) Output
terminal is open collector. In the unoperated
condition (I
L
= 0), the output voltage is normally
high.
Sensing and Control
Honeywell
11 West Spring Street
Freeport, Illinois 61032
Printed with Soy Ink
on 50% Recycled Paper
www.honeywell.com/sensing
PK 88581-2 0303 Printed in USA
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