3B20 Datasheet, PDF (3/8 Pages) Analog Devices – AC Strain Gage, Torque Transducer Input

3B20
3B20 Models Available
Model
Excitation
Voltage
3B20-00
Externally
Programmable²
3B20-01
5 V rms
Excitation
Frequency
Externally
Programmable²
3 kHz
3B20-Custom
*
*
1 _{Output current range may be user programmed to 4 mA to 20 mA using jumper supplied.}
2 _{Requires AC1310 ranging card.}
* Custom Input/Output ranges are available. Refer to configuration guide.
Input Range
Externally
Programmable²
20 mV rms
*
Sensitivity
Externally
Programmable²
2 mV rms/V
*
Output
Ranges¹
-10 V to +10 V &
0 mA to 20 mA
-10 V to +10 V &
0 mA to 20 mA
*
3B20 Specifications
(typical @ +25°C and ±15 V dc, and +24 V dc Power)
Description
Model 3B20
Input Range
Standard Range
Refer to Model Table
Custom Ranges
V_in = 1.5 mV rms to 150 mV rms
V_exc = 2 V rms to 10 V rms
V_exc freq. = 1 kHz to 10 kHz
Output Range
Voltage (R_L > 2 KΩ)
Current (R_L = 0 to 850Ω)¹
With Input Overload
-10 V to +10 V
4 mA to 20 mA or 0 mA to 20 mA
40 mA, maximum
Accuracy²
Initial @ +25°C
Nonlinearity²
±0.1% Span
±0.05% Span
Stability vs. Temperature
Voltage Output
Zero
±0.005% of Span/°C
Span
Current Output³
±0.01% of Span/°C
Zero
±25 ppm of Span/°C
Span
±25 ppm of Reading/°C
Voltage⁴
Bridge Excitation
2 V rms to 10 V rms
Voltage, tolerance
Frequency⁴
±2.5%
1 kHz to 10 kHz, ±15%
Drive
Up to 20 mA rms, minimum
Harmonic Distortion
Span Calibration Adjustment Range⁴
< 0.5%
±25% of span, minimum
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