Dynasonics D601 Series Doppler Ultrasonic Flow Meter - Manual (Page 27)

Rev. 4/00 -3.14- D601
Third press Restarts the internal
totalizer/external CTR
(The internal totalizer starts
from zero.)
(continued)
If inhibiting (pausing) the totalizer is necessary, there are
two methods suggested:
1. Connect and external totalizer to the CTR terminals.
See the section of this manual related to CTR
electrical connections for connection parameters.
2. To inhibit the internal totalizer without resetting the
accumulation, press the TEST key to pause the
accumulation. Press the ENTER key to resume
accumulation.
LOCK ON
To ensure security of the configuration and accumulated
flow, the keypad can be locked. To enable the keyboard
lock out, press LOCK ON key, the display will show
LOCK ON. Press ENTER to return to Run mode. To
turn the lock off, press the LOCK ON key. Use the arrow
keys to set a value of 125. Press the ENTER key. The
display will show LOCK OFF to acknowledge that all
keypad entries can now be made.
CAL
A few factors can influence the readings of a D601 flow
meter. The CAL entry allows the user to compensate for
flow discrepancies without affecting the factory
calibration. Examples of situations that can cause
reading discrepancies are:
! Operations on liquids with sonic velocity carrying
properties that are different from water. See the table
PART 3 - KEYPAD CONFIGURATION