IF-100, 250, 500,1000, 2000, 3000
Open Loop Hall Effect
Current
Sensors
Description
The IF Series Hall effect current sensors accurately measure dc
and ac currents and provide electrical isolation between the
output of the sensor and the current carrying conductor.
Features
• High accuracy
• Wide frequency range
• Excellent linearity
• Safety isolation
• AC & DC current measurement
• Light duty plastic housing
Applications
• Motor controllers and drives
• Battery supplied equipment
• Switch mode and uninterruptable power supplies
• Welding equipment
Measuring Circuit
Units
IF-100
100
IF-250
250
IF-500 IF-1000 IF-2000 IF-3000
500
10
dc to 1
<150
1000
2000
3000
Full Scale (FS) dc or ac peak ............ + A
Full Scale output ............................ + V
AC Bandwidth ................................. kHz
Response time (1) ..........................
ms
Excitation Circui
t
Supply voltage ............................... + Vdc
Max. positive supply current ............ mA
Max. negative supply current .......... mA
15
50
10
Output
Sensitivity ......................................
Linearity ........................................
Calibration point (3) .......................
Typical zero current offset ..............
Maximum zero current offset ..........
Maximum hysteresis of offset (4) ....
Minimum load resistance ..............
mV/A
+ % FS
+ %RDG
+ mV
+ mV
+ mV
k ohms
100
0.5
40
0.5
20
0.5
0.5
10
50
>2
10
0.5
5
0.5
3.3
0.6
200
100
50
25
15
15
Influences On Accuracy
Typical of fset drift with temp
...........
Max. offset drift with temp................
Excitation change of
+ 1 % ...............
Max. sensitivity change
....................
Typical sensitivity
drift with temp.
......
Max. sensitivity drift with temp.
........
+
mV/ C
o
+
mV/ C
+ %
o
+ %/ C
o
+ %/ C
o
1
2
0.03
0.015
0.02
Withstand Capabilities
Dielectric test (5)
........................... kV
Output short or open
...................
2.5
No Damage
General Information
Operating temperature range
......
Storage temperature range
...........
Package
........................................
Aperture opening ..........................
Weight .........................................
Mounting .....................................
Output reference
...........................
-30 to +75
- 40 to +85
flame retardant plastic case
in. (mm)
1.67 (42.4)
Lbs.(grams)
3 Lbs. 6 oz. (1.5 kg)
Four through holes 0.193 inch (4.9 mm) diameter
To obtain a positive output on the terminal marked “ V o”, positi ve conventional
current must flow as per the direction of the arrow marked on the sensor.
o
o
C
C
6120 Hanging Moss Road • Orlando, Florida 32807 •
www.fwbell.com
Phone (407) 678-6900 • Fax (407) 677-5765 • Toll Free (800) 778-6117
Rev. date 04/2003
Mechanical
Dimensions
All dimensions are in inches (millimeters)
Current
Sensors
Current
Sensors
Current
Sensors
Model
IF - 100, 250, 500, 1000, 2000, and 3000
2.19
( 55.6 )
1.19
( 30.2 )
2.38
( 60.5)
-Vo
Black Thermoplastic Case (NORYL)
+Vo
-15V
COM
+15V
Label
.50
( 12.7 )
.193 DIA.
( 4.9 )
Mounting Through
Hole (4)
+ CURRENT INPUT
1.670 DIA.
( 42.4 )
Aperture
5.44
( 138.2 )
3.00
( 76.2 )
1.95
( 49.5 )
.50
( 12.7 )
.44
( 11.2 )
3.50
( 88.9 )
Notes
4.38
( 111.3 )
1. Consult F.W.Bell if the product aperture current and frequency exceeds 400 ampere-kilohertz.
2. Response time is affected by the output leads and the conductor in the aperture, the proximity of the return conductor
and ferrous metals. It is best to test the sensor in the actual environment to obtain representative performance.
3. The sensors are calibrated at 80% of Full Scale.
4. Hysteresis specifications given for Full Scale aperture current remnant.
5. The dielectric test consists of 2.5 kV ac at 60 Hz for one minute between a bare 1.5 inch diameter conductor
(loca ted concentrically through the aperture) and the output of the sensor.
6. Due to continuous process improvement, all specifications are subject to change without notice.
6120 Hanging Moss Road • Orlando, Florida 32807 •
www.fwbell.com
Phone (407) 678-6900 • Fax (407) 677-5765 • Toll Free (800) 778-6117
Rev. date 04/2003
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