SHIMPO DFS-series - Manual (Page 18)

18
Low Battery Indication
The batteries should be changed when “LO BAT” appears on the display.
NOTE: Parameters and data in memory can be saved if the AC adapter is plugged in and the DFS is left ON before
removing the batteries.
Auto Power Off
The DFS incorporates a selectable auto power off feature to protect the life of the batteries. If no buttons are pressed
or the display has not changed for a period of three minutes, the DFS will automatically shut off. This feature is inactive
if the DFS is being used with the AC adapter or if it is in calibration mode. To engage or disengage the auto power off
feature:
1. Press the PEAK button while holding down the ON button; the small display will indicate “dSP”.
2. Press the PEAK button two times. The small display will indicate “Off” and the main display will reflect the current
setting.
3. Each time the > button is pressed the main display will toggle between “3” and “nonE”.
4. Press the MEMO SET button to store the auto power off selection and exit.
Calibration
Any DFS can be calibrated in the field. The DFS are very easy to calibrate with metric weights, but the torque sensors
require a “calibration wheel”.
Required items for DFS calibration:
• Appropriate calibration weight (see following table)
• Proper attachment for applying the weight to the DFS (either tension or compression)
• Secure mounting stand that will not introduce vibration
Instructions to calibrate a remote load cell are as follows:
1. Mount the DFS to the stand.
2. Secure the attachment to the DFS.
3. Make sure the power on the DFS is turned OFF.
4. While holding down the MEMO SET button, press the ON button and hold until the main display shows “CAL”.
The small display will reflect the two-digit code that corresponds with the capacity (see following calibration
table).
5. Press the MEMO SET button. The capacity of the DFS will appear on the main display; please move on to step 6.
If the DFS did not show the correct model (code), use the > button to select the proper code for the remote
sensor (see the following table).
6. Press the MEMO SET button. The small display will show “PLS”. Pressing the > button will toggle the small display
“MNS” and “PLS”. If calibrating under a compression load choose “PLS”. If calibrating under a tension load
choose “MNS”.
NOTE: Default setting is one direction calibration.
7. Press the MEMO SET button. The minimum indicator will appear and the main display will reflect a hexadecimal
number that has no relevance to the user.
8. Confirm that there is no load (except for the attachment) since the DFS is ready for zero point calibration. Press
the MEMO SET button. The small display will exhibit “SCN” and blink for about 12 seconds until the maximum
indicator appears.
9. Gently place the proper calibration weight (see the following table) on the load cell and confirm that it is steady.
Press the MEMO SET button to begin full scale calibration. The "SCN" will flash for about 18 seconds until the
small display shows “ENd”.
10. “ERR” will appear on the display if the calibration failed. Turn the power off and repeat the entire procedure.
11. After “ENd” appears, press the OFF button to end the calibration process.