OPERATION
Upon power up, the transducer is fired periodically as set by P36. A long interval between measurements may be desirable in order to conserve power* when operating the
The echo is processed to determine the head (D0). The flow rate (D1) is calculated by the
Viewing or changing the content of a parameter (except F1, emulation) is done without disturbing the acquisition, processing or logging of flow data (see \ Security).
*restricted usage of display lighting (P14), relays (P15, 18 & 21), mA output and communications will also conserve power.
MEMORY
During a power interruption, the memory back up will hold the programming, the log and the totalizer values, and run the clock. The memory battery (B1) provides up to one year of memory retention (see Appendices \ Maintenance).
Note: To save parameter values, return to RUN mode (F2) after programming.
SECURITY
The content of all ‘A’, ‘D’, ‘F’, ‘P’ and ‘U’ parameters can be viewed without having to satisfy the security parameter, F0. However if it is desired to change the content of any of these parameters, the security parameter must be satisfied (except for resetting the running min/max displays, parameters D3/D4 and D6/D7).
Once security has been satisfied, access continues for 5 minutes after the last key is pressed or until F2 is
The security code may be changed from its factory set value, 2.71828, by entering a new value into F10. It is imperative that the new value be recorded, as the code can not be viewed. If the code is lost, consult Milltronics.
UNITS
Programming of the
»P1 linear and velocity
»P2 temperature
»P5 flow rate and volume
If the units are changed during the course of operation, the change will be effected through all associated parameters and displays and will rescale flow and total data stored in the logs.
7ML19985AB01 | OCM III | 27 |
