YZ Systems NJEX 8300G, Руководство пользователя, Страница: 51 / 126

YZ Systems, Inc. • 3101 Pollok Drive • Conroe, Texas • USA • 77303 • P: 936.788.5593 • F: 936.788.5720
Page 44
NJEX 8300 ver .092001 ATEX Rev.
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
Pulse Flow Input Calibration,
Dry Contact & Voltage Pulse
Choose *Set from the main menu, figure 105.
Choose *Cal from the set select menu, figure 106.
Choose *Inputs from the calibration set menu,
figure 107.
Choose *Flow from the flow input type menu,
figure 108.
Choose *Pulse from the flow input type menu for digital
pulse inputs, i.e. dry contact, voltage pulse, etc,
figure 109.
Calculate Pulse Input Frequency
Using
example 1 on page 45
a technician can calculate
the Pulse Input Frequency required to effectively
calibrate the NJEX System.
If the pulse input frequency is between 1-1000 pulses
per second (Hz), choose PPS,
figure 110.
-OR-
If the pulse input frequency is between 1-100 pulses per
minute, choose PPM,
figure 110.
Span Adjustment, is used to calibrate the N-300G controller
for 100% of metered flow at maximum input frequency, i.e.
100 pulses per second at maximum gas flow.
To set the span adjustment, figure 111 & 112, press and
release the Select key. The value entry will begin to flash
when it is chosen. Use the Up Arrow key to increase the
value and the Down Arrow key to decrease the value.
When a new value has been chosen press the Enter key
to store the value into memory. The value entry will stop
flashing when loaded into the memory.
Figure 105
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
Figure 106
Figure 107
Figure 108
Figure 109
pmp bat vmtr sig tnk
Span Adjustment
50 Pul/sec *Esc pmp bat vmtr sig tnk
Span Adjustment
30 Pul/min *Esc
Figure 111
pmp bat vmtr sig tnk
Pulse Input Scan
*PPS *PPM *Esc
Figure 110
Figure 112