IA-100, 250, 500,1000, 2000, 3000
Open Loop Hall Effect
Current
Sensors
Description
The IA 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.
• High accuracy
• Wide frequency range
• Excellent linearity
• Safety isolation
• DC current measurement
• Heavy duty housing
Features
Applications
• Motor controllers and drives
• Battery supplied equipment
• Switch mode and uninterruptable power supplies
• Welding equipment
• Traction sensing
Measuring Circuit
Units
IA-100
100
IA-250
250
IA-500 IA-1000 IA-2000 IA-3000
500
1000
2000
3000
Full Scale (FS) dc or ac peak ............ + A
Full Scale output ............................ + V
Frequency range ............................
Response time (1) .......................... µs
10
dc (permissible ripple content <200 A rms at 360 Hz)
<150
Excitation Circui t
Supply voltage ............................... + Vdc
Max. positive supply current ............ mA
Max. negative supply current .......... mA
15
50
10
Output
Sensitivity ......................................
Linearity ........................................
Calibration point (2) .......................
Typical zero current offset ..............
Maximum zero current offset ..........
Maximum hysteresis of offset (3) ....
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 offset 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 (4) ........................... kV
Output short or open
...................
2.5
No Damage
General Information
Operating temperature range ....
......
o
C
-30 to +75
o
Storage temperature range ............ C
-40 to +85
Package ........................................
rugged metal case
Aperture opening .......................... in. (mm)
1.67 (42.4)
Weight ......................................... Lbs.(grams)
5 Lbs. 10 oz. (2.6 kg)
Mounting ..................................... F ive mounting holes 0.281 inch (7.1 mm) diameter on steel base plate
Output reference ...........................
To obtain a positive output on the terminal marked “+Vo”, positive conventional
current must flow as per the direction of the arrow marked on the sensor.
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
IA - 100, 250, 500, 1000, 2000, and 3000
3.00
( 76.2 )
.281 DIA.
( 7.1 )
Mounting Hole (5)
3.00
( 76.2 )
3.50
( 88.9 )
+15V
COM
-15V
+Vo
-Vo
2.50
( 63.5 )
4.50
( 114.3 )
Label
.55 MAX.
( 14.0 )
1.670 DIA.
( 42.4 )
Aperture
+ CURRENT INPUT
5.50
( 139.7 )
2.01
( 51.1 )
Notes:
2.25
( 57.2 )
1. 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.
2. The sensors are calibrated at 80% of Full Scale.
3. Hysteresis specifications given for Full Scale aperture current remnant.
4. 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 apertur e) and the output of the sensor.
5. 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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