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Section 7
To clear ALL Dynamic Memory using the KeyPad:
CAUTION: Before proceeding further it is essential to understand that this function elimi-
nates ALL data stored in RAM. This means that all saved Site Setups including the
site data of a flow-calibrated site will be erased! In addition, the entire Datalogger
file plus any custom factory or user-created pipe or transducer tables will be elimi-
nated. The impact of this is such that we strongly recommend that you consult the
Technical Service Department before continuing with this procedure. If you choose
to continue, be aware that you will have to create a new Site Setup, re-enter all site
specific parameters including pipe or transducer tables, plus all desired Meter
Facilities entries.
Turn off power (if it is currently on) and then reapply power to the system.
Perform steps 1 and 2 in the "Clear Active Memory" instructions above.
Press
. Note that the greater than (>) symbol changes to a (:) colon. Press ENTER
display switches to [Clr Saved Data? Yes/No] as shown on the left-hand figure (see below).
Clr Saved Data?
> No
Press . Note that the greater than (>) symbol changes to a (:) colon. Press
second line to [Yes] (as shown in the right-hand figure above). Press ENTER
Dynamic Memory.
To restore operation, create a new Site Setup and then re-select any Meter Facilities items
(e.g., RS-232 setup parameters) that you may have edited originally.
7.8.2 SYSTEM RESET USING THE RS-232 INTERFACE
The 1020 flow computer also allows you to perform a system reset via its RS-232 interface. The
following instructions require the flow computer to be connected serially to a PC. Refer to paragraph
2.7.1 for details on how to setup an RS-232 interface with a PC.
To clear Active Memory using the RS-232 Interface:
Turn off power (if it is currently on). Turn power on. As soon as you apply power type the @
character three times. The prompt: [Clr Active Memory? Yes/No] appears at the top of the
screen.
Yes/No
W ide B eam
Wide Beam
C lamp-O n
Clamp-On
Ultrasonic
U ltrasonic
Flowmeter
Flow meter
7-14
1020NFM-1D
Clr Saved Data Yes/No?
: Yes
to change the
. The
W ide B eam
Wide Beam
C lamp-O n
Clamp-On
U ltrasonic
Ultrasonic
Flow meter
Flowmeter
to clear all
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