YZ Systems NJEX 8300G, Manual, Page: 3 / 126

YZ Systems, Inc. • 3101 Pollok Drive • Conroe, Texas • USA • 77303 • P: 936.788.5593 • F: 936.788.5720
Page II
NJEX 8300 ver .092001 ATEX Rev.
8300G T 8300G T
8300G T 8300G T
8300G T
ABLE ABLE ABLE ABLE ABLE OF OF OF OF OF
C C
C C
C
ONTENTS ONTENTS ONTENTS ONTENTS ONTENTS
Section 5: Programming for Proportional-to-Flow Operation ...................................................25
Setting Operator Input Parameters ...................................................................................................25
Odorant injection rate in lbs/MMCF (mg/m3) of gas ..........................................................................25
Pump displacement in cc/stroke .......................................................................................................25
Odorant density in lbs/gallon (g/cc) @ 60º F..................................................................................... 25
Max gas flow in MMCF/Hour (m3/sec) ..............................................................................................26
Low Flow Shut Off............................................................................................................................. 26
Flow (no signal) input ........................................................................................................................26
Maximum Time/Stroke .......................................................................................................................27
The Odorant Output Setting ..............................................................................................................27
Odorant Tank.....................................................................................................................................28
Expansion Tank Pressure Monitoring ................................................................................................28
Odorant Inlet Pressure Monitoring .....................................................................................................29
Alarm to Relay Delay .........................................................................................................................30
Alarm to Call Out Delay .....................................................................................................................30
MODBUS Address ............................................................................................................................30
MODBUS Parameters.......................................................................................................................31
Conclusion ........................................................................................................................................31
Section 6: Programming for Proportional-to-Time Operation ..................................................33
Setting Operator Input Parameters ...................................................................................................33
Pump displacement in cc/stroke .......................................................................................................33
Odorant density in lbs/gallon (g/cc.) @ 60ºF..................................................................................... 33
Time interval between strokes of the pump in xx.xx minutes/stroke: ................................................. 33
The Odorant Output Setting ..............................................................................................................34
Odorant Tank.....................................................................................................................................34
Expansion Tank Pressure Monitoring ................................................................................................35
Odorant Inlet Pressure Monitoring .....................................................................................................35
Alarm to Relay Delay .........................................................................................................................36
Alarm to Call Out Delay .....................................................................................................................36
MODBUS Address ............................................................................................................................37
MODBUS Parameters.......................................................................................................................37
Conclusion ........................................................................................................................................38
Section 7: Calibrating Signal Inputs ............................................................................................39
Analog Flow Input Calibration, 1-5 VDC / 4-20 mA ............................................................................39
Expansion Tank Pressure Transmitter Zero Calibration .................................................................... 41
Odorant Inlet Pressure Transmitter Zero Calibration .........................................................................42
Pulse Flow Input Calibration, Dry Contact & Voltage Pulse ...............................................................44
Calculation for Determining the Span Frequency Example ...............................................................45