Filter
Top Products
99
Reference Manual
IP2030/RM, Rev AA
Section 4: Getting started
June 2014
Section 4: Getting started
How to reset the totalizers on the Mobrey MCU902
To re-set a totalizer to zero, display the Totalizer Count parameter e.g. D828 and then press the
button corresponding to Reset command on display line 4.
The totalizers may have password (PIN) protection to prevent unauthorized persons from
re-setting the totals. See “PIN Security” on page 105 for full details of PIN security.
4.5.25 Set-up totalizing on the Mobrey MCU90F control unit
The Mobrey MCU90F control unit has two totalizers: Totalizer 1 and Totalizer 2.
The totalizers can be easily set-up using the Totalizer Wizard, accessible by navigating to the
SETUP / [CONTROLLER /] OUTPUT / TOTALIZER menu. The Totalizer Wizard also forms a part of
the Application (App) Wizard.
Note
The wizards require the totalizer source parameter to have suitable units selected
e.g. m
3
/hour. If no suitable units are selected, an 'invalid units' message appears.
See “Using the App Wizard to set-up a flow application” on page 41 for a totalizing example.
After using the Totalizer or App Wizard, adjustments can be made to the totalizer parameters.
Set-up Totalizer 1 (cumulative totalized flow)
This is an 8-digit totalizer showing cumulative totalized flow through a flow structure.
Note
Totalizer 1 operates with an input of control unit PV (D800) in units per second.
If the PV is a volumetric flow rate (e.g. m
3
/hour), the totalizer can accumulate this flow
volume and give the total volume throughput. See “Pumped volume totalizing” on
page 90 for pumped volume totalizing
Menu: SETUP / [CONTROLLER /] OUTPUT / TOTALIZER
P530 Total 1 Factor (Factor default is 0.0)
One count is added to the Totalizer Count (D828) for a quantity of liquid as defined by
this parameter. The display units for D828 is defined by P531.
P531 Total 1 Units (Factory default is "None")
This parameter defines the units for the Totalizer Count (D828).
When using totalizer units of gal, an 8-digit totalizer increments rapidly and rolls over
too frequently. To help, alternative totalizer units of galx10, galx100, galx1000,
and Mgal are available for selection. When these special units are selected after
selecting gal units, the totalizer factor (P530) is automatically re-scaled by x10, x100,
x1000, or x1000000 depending on the selection. Similarly, re-scaling is automatic for
ltrx10, ltrx100, etc. after selecting ltr as totalizer units.
See “Using the App Wizard to set-up a flow application” on page 41 for a flow
application example where galx100 totalizer units are needed.