YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
Page 15
NJEX 610G / 610F ver.11-2023
Section 5: Programming the Z-100 Controller
Analog Mode:
In Analog Mode the Z-100 controller monitors a
4-20mA flow signal provided by the customer. In
this mode, the Z-100 controller monitors the in-
coming flow signal and with the INJECTION RATE
and MAX FLOW settings calculates and varies the
pump cycle time as needed to maintain a consistent
odorization rate.
Analog mode settings include: INJECTION RATE,
MAX FLOW. The Z-100 has a default calibration for
the Analog Input. To obtain the best performance
and accuracy perform the ZERO and SPAN calibra-
tion procedures below using the actual flow signal
is recommended.
NOTE:
The 4-20mA current signal is converted to
a voltage prior to being displayed on the calibra-
tion screen.
Flow Zero:
To begin setting parameters for Analog
Mode, navigate to Main Menu->Mode->Flow Zero.
Apply 4.0mA to the flow signal in TB(3) and TB(4)
and press enter on the navigation switch to save
the calibration. If successful, the voltage will read
very close to 1.000V and the Flow Zero Screen
will show CALIBRATED, indicating that a user
calibration value is being used. If the flow signal is
too far out of range, a RANGE ERROR message
will be shown and there will be no change to the
calibration state. The RESET function will clear the
user calibration and return the unit to the factory
calibrated values. Press the navigation switch to
the left to return to the Mode Menu or navigate to
Reset and press enter on the navigation switch in
to cancel the calibration.
Flow Span:
Apply 20.0mA to the flow signal in
TB(3) and TB(4) and Press enter on the navigation
switch to start calibra tion. If successful, the voltage
will read very close to 5.00V and the Flow Zero
Screen will show CALIBRATED, indicating that a
user calibration value is being used. If the
flow sig
-
nal is too far out of range, a RANGE ERROR mes-
sage will be shown and there will be no change to
the calibration state. The RESET function will clear
the user calibration and return the unit to the fac-
tory calibrated values. Press the naviga tion switch
to the left to return to the Mode Menu or navigate
to Reset and press enter on the navigation switch
to cancel the calibration.
Max Flow:
This value correlates to a 20ma signal
on the analog flow input. The value can range from
0.0010MMCF/HR to 5.0000MMCF/HR.