YZ Systems NJEX 7300L, Инструкция и руководство по эксплуатации, Страница: 51 / 126

YZ Systems, Inc. • 3101 Pollok Drive • Conroe, Texas • USA • 77303 • P: 936.788.5593 • F: 936.788.5720
Page 41 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
Or
Expansion Tank Pressure
Transmitter Zero Calibration
Note: the N-300 should be in the stopped mode
when performing the following calibrations.
Choose *Set in the main menu, figure 84.
Choose *Cal in the set selection menu, figure 85.
Choose *Inputs in the calibration set menu, figure 86.
Choose *Pres in the calibration menu, figure 87.
Choose *XTank in the Calibrate Pressure menu. The
transmitter voltage is 1-5VDC. The only field calibration
is the zero reference, which can be set in this display,
figure 88.
Zero Adjustment, is used to calibrate the N-300
controller to a zero pressure reference point. The
transmitter is factory calibrated for the span value
referenced to a specific pressure above this set point.
To calibrate the zero set point, remove all pressure
from the expansion tank by venting the expansion tank
pressure via valve V-5. The output from the transmitter
should be 1.00 VDC.
1. Press & release the *Read key, figure 89, and
the actual voltage present from the transmitter
will be shown flashing in the display.
2. Press & release the *Accept key , figure 90, to
load the zero point into the memory. This value
will stop flashing when this is accomplished.
Note: if an error message appears, figure 91, the
voltage is outside of the calibration range of .6V-1.4VDC.
3. If the odorant inlet transmitter requires zero calibra-
tion at this time, proceed to the Odorant Inlet
Pressure Transducer Zero Calibration in the next
sub-section
prior to pressurizing the expansion tank.
3a. Important, If the odorant inlet transmitter is not to
be zero calibrated at this time, close V5 and adjust
the expansion tank pressure back to 25 psi
(1.72 Bar), by manually opening valve V4 until
the proper pressure is obtained, then close V4.
Figure 84
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
Calibrate Pressure
*XTnk *Odor *Esc
pmp bat vmtr sig tnk
Zero Adjustment
*Read 1.0V *Esc
Figure 85
Figure 86
Figure 87
Figure 88
Figure 89
pmp bat vmtr sig tnk
Zero Adjustment
*Accept 1.0V *Esc pmp bat vmtr sig tnk
Zero Adjustment
ERROR 2.0V *Esc
Figure 91 Figure 90