3-32
IM 701240-01E
3.13 Connecting Acceleration Sensors
An acceleration sensor is connected when measuring acceleration on the 701275
(ACCL/VOLT). For a details on acceleration sensors, see the respective manuals.
WARNING
Over-Range Indication
If over-range is indicated, the SL1400 may be receiving a voltage higher than
the observed waveform or measured waveform values. To prevent electric
shock, change the vertical scale with the RANGE knob so that the entire
amplitude of the waveform is displayed within the waveform display area, and
check the input voltage level.
Over-range indication
Indicates the number of the channel that over-range is occurring on.
If over-range is occurring on multiple channels, the smallest channel
number among them is indicated.
CAUTION
• Applying a voltage that exceeds the values indicated below to the 701275
(ACCL/VOLT) may damage the input section.
Maximum input voltage: 42 V (DC+ACpeak)
• Connect acceleration sensors without supplying bias current to the sensor.
Otherwise, damage to the internal circuitry of the acceleration sensors may
result.
• The SL1400 only supports acceleration sensors that are driven by constant
current with driving current of 4 mA and driving voltage of 22 V.
Connecting Acceleration Sensors
When Connecting Built-in Amplifier Type Acceleration Sensors
The SL1400 allows built-in amplifier type (low impedance) acceleration sensors to be
directly connected. To connect built-in amplifier type acceleration sensors, use BNC
cables. Use cables that are appropriate for the acceleration sensors being used.
Connect the acceleration sensors with the bias current turned OFF. After connection,
turn ON the supply current to the acceleration sensors to make measurements.