National Instruments NI myDAQ Guide D'utilisation Et De Securite page 2

Audio Output
If using earphones to listen to the audio output of the NI myDAQ, ensure that the volume is set to a safe level.
Caution
Listening to audio signals at a high volume may result in permanent hearing loss.
Power Supplies
Do not mix power from NI myDAQ with power from external power sources. When using external power, remove
Caution
any connections to the power supply terminals on NI myDAQ.
Digital Multimeter Connections
60 VDC/20 Vrms maximum. Do not plug digital multimeter probes into circuits with Hazardous Voltages, such as
Caution
wall outlets.
1 Voltage/Resistance/Diode/Continuity
2 Current
Terminal Name
HI (VΩ )
COM
HI (A)
Replacing the Fuse
The overcurrent fuse is located inside the NI myDAQ device. To replace a broken fuse, remove the four bottom screws and remove
the top of the NI myDAQ enclosure. Replace the fuse with a 1.25 A Fast-Acting sand-filled 5 × 20 mm fuse (Littelfuse part number
02161.25 at www.littelfuse.com). Replace the top of the enclosure and tighten the screws before resuming operation of the
NI myDAQ.
NI myDAQ Safety and Usage Guide
Reference
COM Positive terminal for voltage, resistance, and diode measurements
— Reference for all DMM measurements
Positive terminal for current measurements (Fused: F 1.25 A 250 V Fast-Acting 5 × 20 mm)
COM
Description
2 ni.com