11
Before commissioning, the flow meter is set up using a personal
computer (PC) via RS-485 interface.
1.5.3. Access levels
1.5.3.1. The flow meter has three levels of access to setting and calibration pa-
rameters.
The access levels differ in the information displayed, possibilities to
change the setting and calibration parameters of the flow meter and are
referred to as WORK, SERVICE and ADJUSTMENT modes.
Mode applications:
- ADJUSTMENT
– adjustment and verification mode;
- SERVICE
– preparation for operation mode;
- WORK
– operation mode (user mode).
Modes differ in the level of access to information and possibilities to
change the settings of the flow meter via RS-485 interface.
Maximum rights are granted in ADJUSTMENT mode. The mode al-
lows the user to view all parameters and to modify all configuration set-
tings. Minimum rights are given in WORK mode.
The set of parameters displayed does not depend on the set opera-
tion mode.
1.5.3.2. The operation mode is defined by a combination of the presence/absence
of a short-circuit using the contact pair jumpers J1 and J2 located on the
processing module (see Fig.A.3 of Appendix A).
Correspondence of combinations to operation modes is resulted in
table 4, where "+" is presence of contact pair closing, and "-" is absence
of closing.
Table 4
Operation mode
Contact pair
Mode application
J1
J2
WORK
-
-
Operation
SERVICE
-
+
Preparation for operation
ADJUSTMENT
+
-
Adjustment
1.5.3.3. WORK mode is a flow meter operation mode on the site.
WORK mode allows the user to view the data.
1. With the indicator: current date and time, values of measured parameters
(volume flow rate, volumes accumulated during forward and reverse flow
direction, as well as their algebraic sum), status line of emergencies and
software version number.
2. With RS-485, M-Bus or Wireless M-Bus interfaces:
a) Values of measured parameters: volume flow rate, volumes accumulated
in the forward and reverse flow direction, as well as their algebraic sum,
fluid velocity, and current velocity of USS
3. With RS-485 interface:
a) The contents of the archives and event log
b) Configuration parameters: current date and time, characteristics of uni-
versal and logic outputs
