MicroTrans
II
Summing Operation & Maintenance Manual
Paragon Controls Incorporated
22
Revision Level 002
8.3. ENGINEERING
UNITS
A list of engineering units are available for the user to select from for display purposes to meet customer
requirements. Changing the engineering units will affect the process display and the alarm value menus.
Field Setup
Menu
Operating Range
Eng. Units
Zero Calibration
Eng. Units
(ACFM)
Lockdown
Flow Correction
Auto Zero
Temp. Comp.
Meas. Fl. Disp. Fltr
Standard
Flow
Units
Actual
Flow
Units
Standard
Velocity
Units
Actual
Velocity
Units
Pressure
Units
SCFM ACFM SFPM AFPM
Inch
w.c.
SCFH L/S Sm/s Am/s
Pa
SL/S Am
3
/S % %
KPa
Sm
3
/S Am
3
/M
mm w.c.
Sm
3
/M
Am
3
/HR
%
Sm
3
/HR %
%
8.4. LOCKDOWN
Due to the high square root gain associated with very low delta p values, the display and process output
are locked to a zero value until the input value reaches the specified Lockdown Value that was entered.
Above the Lockdown Value the output is linear to air flow. The following menus are only available if
the MicroTrans
II
is configured by Paragon at the time of order for flow or velocity.
8.4.1. Lockdown
Value
The Lockdown Value can be changed from 0 to 20% of Operating Range Value. Lockdown Values can
be changed in 1% increments. The recommended standard is 10%.
Field Setup
Menu
Operating Range
Lockdown
Zero Calibration
(0-20%)
Eng. Units
(10)%
Lockdown
Flow Correction
Delay
Auto Zero
(0-20 seconds)
Temp. Comp.
(2)sec
Meas. Fl. Disp. Fltr
