CEMB USA N100 - Manual (Page 22)

4 - 2 Setup function
two different sensitivity levels can be set, identified respectively by “1” and “2”.
Therefore six different sensors can be defined:
- ACC-1 accelerometer 1 (powered – IEPE type)
- ACC-2 accelerometer 2 (powered – IEPE type)
- VEL-1 velocimeter 1 (not powered)
- VEL-2 velocimeter 2 (not powered)
- DIS-1 displacement sensor 1 (not powered)
- DIS-2 displacement sensor 2 (not powered)
Typical sensitivity values for the various sensors are:
SENSOR TYPE SENSITIVITY TYPICAL VALUE
Accelerometer (ACC) mV/g 100
Velocimeter (VEL) mV/(mm/s) 21,2
Displacement (DIS) mV/µm 8
Warning:
The sensitivity of some models may differ from the typical values shown; make
sure that the sensor is set with the correct value taken from its documentation.
Date
The date must be entered in the N100 instrument using two figures for the day, two for
the month and two for the year, in this order. To assist the operator, the dd/mm/yy
format is displayed below the current date.
New values can be entered following the same procedure as that described above for
the sensitivity of the sensor (see above).
Time
Time must be entered in the N100 instrument using two figures for the hours (from 00
to 23) and two for the minutes (from 00 to 59). To assist the operator, the hh:mm
format is displayed below the current time.
New values can be entered following the same procedure as that described above for
the sensitivity of the sensor (see above).
Units of measurement system
The units of measurement used for acceleration, velocity and movement values can be
respectively:
- g; mm/s; µm : metric units
- g; inch/s; mils : imperial units