Measurement Computing DBK70 - Manual (Page 13)

DBK70 User’s Manual 927994 System Setup 3-3
Differential Measurements
When a differential input
measurement device is used, the
analog ground of the measurement
device must be connected to the
analog ground of the DBK70. This
ground cannot be greater than 30
volts above the vehicle’s chassis
ground.
Single-Ended Measurements
When measuring the DBK70
outputs with a single-ended
device, the analog grounds from
the DBK70 and the measurement
device must be tied together.