YZ Systems NJEX 7300L, Инструкция и руководство по эксплуатации, Страница: 49 / 126

YZ Systems, Inc. • 3101 Pollok Drive • Conroe, Texas • USA • 77303 • P: 936.788.5593 • F: 936.788.5720
Page 39 NJEX 7300L ver.09042003
SSSSS
ECTION ECTION ECTION ECTION ECTION
7: 7:
7: 7:
7: C C
C C
C
ALIBRA ALIBRA ALIBRA ALIBRA ALIBRATING TING TING TING TING
S S
S S
S
IGN IGN IGN IGN IGNAL AL AL AL AL
I I I
I
I
NPUTS NPUTS NPUTS NPUTS NPUTS
Analog Flow Input Calibration,
1-5 VDC / 4-20 mA
IMPOR IMPOR
IMPOR IMPOR
IMPORTTTTTANT ANT
ANT ANT
ANT:::::
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 equipment 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 69.
Choose *Cal in the set selection menu, figure 70.
Choose *Inputs in the calibration set menu, figure 71.
Choose *Flow in the calibration selection menu, figure 72.
Choose *Ang in the flow input type menu, for analog
voltage or current inputs, i.e., 1-5VDC or 4-20mA,
figure 73.
Choose *Lin for input signals that are linear with respect
to flow i.e., flow computers, RTU's, etc, figure 74.
-OR-
Choose *NonLin for input signals that are non-linear
with respect to flow i.e., differential pressure transmit-
ters, etc., figure 75.
Choose *Zero to calibrate the zero set point, figure 75.
Zero Adjustment, figure 76, is used to calibrate the
N-300 controller for 0% of the metered flow in the
pipeline. The N-300 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 116
in Appendix D.
SSSSS
ECTION ECTION ECTION ECTION ECTION
7: 7:
7: 7:
7: C C
C C
C
ALIBRA ALIBRA ALIBRA ALIBRA ALIBRATING TING TING TING TING
S S
S S
S
IGN IGN IGN IGN IGNAL AL AL AL AL
I I I
I
I
NPUTS NPUTS NPUTS NPUTS NPUTS
Or
Figure 69
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 70
Figure 71
Figure 72
Figure 73
Figure 74
Figure 75
Figure 76