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BT32i Differential Voltage sensor User’s Guide
Technical Specifications
Sensor kind
Analog, generates an output voltage between
-‐7.5 and 7.5
V
Measurement range
± 500 mV (voltage between input terminals)
Resolution
0.38 mV
Gain
12.8 x
Calibration function
V
in
(mV) = 78.125 * V
out
(V) – 0.47
where V
in
= V
+
-‐ V
-‐
Input impedance to ground
each terminal 400 k
Ω
Input offset
voltage
error
typical
±
0.3 mV
Common mode input voltage error
typical 0.15 mV/V (0 – 500 Hz)
Non-‐linearity
< 0.001 %
Slew rate
3 V/
µ
s (maximum output voltage variation)
Bandwidth (small signal)
120 kHz (-‐3dB)
Maximum common input voltage
± 50 V (max. voltage related to ground)
Supply voltage
5 V DC
Supply current
typical 23 mA
Connection
IEEE1394 connector for BT-‐IEEE1394 sensor
cable. Sensor cable is not delivered with the
sensor.
Warranty:
The Differential Voltage sensor BT32i is warranted to be free from defects in
materials and workmanship for a period of 12 months from the date of purchase
provided that it has been used under normal laboratory conditions. This warranty
does not apply if the sensor has been damaged by accident or misuse.
Note:
This product is to be used for educational purposes only. It is not appropriate
for industrial, medical, research, or commercial applications.
Rev. 20
/11/2014
