YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
Page 39
NJEX EUR ver. 08-2021
Section 7: Calibrating Signal Inputs
Analog Flow Input Calibration,
1-5 VDC / 4-20 mA
IMPORTANT:
Many factors effect the signal between the signal
source and the NJEX System. Elements of the signal
electrical system such as the gauge and length of the
wire, isolation barrier, grounding, transient voltages,
and the condition of the signal generated by the flow
device can effect the signal and how that signal is
received by the NJEX System. To truly calibrate the
NJEX System to the signal, use only the flow equip
-
ment that will be part of the odorization system such
as; a flow computer, RTU, PLC, pulse index drive, or
differential pressure transducer.
Choose
*Set
in the main menu,
figure 73
.
Choose
*Cal
in the set selection menu,
figure 74
.
Choose
*Inputs
in the calibration set menu,
figure 75
.
Choose
*Flow
in the calibration selection menu,
figure 76
.
Choose
*Ang
in the flow input type menu, for analog
voltage or current inputs, i.e., 1-5VDC or 4-20mA,
figure 77
.
Choose
*Lin
for input signals that are linear with
respect to flow i.e., flow computers, RTU’s, etc,
figure
78
.
-OR-
Choose
*NonLin
for input signals that are non-linear
with respect to flow i.e., differential pressure transmit-
ters, etc.,
figure 78.
Choose
*Zero
to calibrate the zero set point,
figure 79.
Zero Adjustment,
figure 80,
is used to calibrate the
N-300G controller for 0% of the metered flow in the
pipeline. The N-300G is factory calibrated for 0% of
flow to directly correspond to 1.00 VDC
(4.0 mA)
at
the flow input terminal board
TB1
terminals
#2
and
#3
,
refer to the Wiring Control Document on page 117 in
Section 7: Calibrating Signal Inputs
Or
Figure 73
pmp bat vmtr sig tnk
PropFlow
Idle
*Strt *Dsp *Set
pmp bat vmtr sig tnk
Set Selection
*Par *Cal *Esc
pmp bat vmtr sig tnk
Calibration Set
*Clk *Inputs *Esc
pmp bat vmtr sig tnk
Calibration
*Flow *Pres *Esc
pmp bat vmtr sig tnk
Flow Input Type
*Ang *Pulse *Esc
pmp bat vmtr sig tnk
Analog Input
*Lin *NLin *Esc
pmp bat vmtr sig tnk
Linear Input
*Zero *Span *Esc
pmp bat vmtr sig tnk
Non Linear Input
*Zero *Span *Esc
Or
pmp bat vmtr sig tnk
Zero Adjustment
*Read 1.0V *Esc
Figure 74
Figure 75
Figure 76
Figure 77
Figure 78
Figure 79
Figure 80
Summary of Contents for NJEX 6300G
Page 1: ...NJEX 6300G 7300G N A T U R A L G A S O D O R I Z A T I O N S Y S T E M...
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Page 3: ...NJEX 6300G 7300G Instruction Operating Manual Version 08 2021...
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