YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
Page 23
NJEX 610G / 610F ver.11-2023
Section 6: Programming for Proportional-to-Time Operation
Setting Operator Input Param-
eters: Z-100 Controller Setup,
Timer Mode
The rate at which the solenoid output is activated
is controlled by the Cycle Time setting.
Use the chart below to calculate the timer setting
needed.
Figure 10
1. Pump displacement (from .02 to .1 cc)
=
a
2. Odorant density (lb/gal or g/cc)
=
b
3. Desired injection rate (lb/MMCF or mg/m³)
=
c
4. Average flow rate (MCF/hr or m³/hr)
=
d
5.
Timer
setting
a.
English
= a
x
b
x
15.8503*
c x d
a.
Metric = a
x
b
x
60000*
c x d
Example #1
Example #2
English
Gas
Flow Metric
Gas
Flow
Pump
displacement
(a)
= .05
cc
.05
cc
Odorant
density
(b)
= 6.80
lb/gal
.815
g/cc
Injection
rate
(c)
= .5
lb/MMCF
8
mg/m³
Flow
rate (d)
= 6.00
MCF/hr
170
m³/hr
Example #1 Time setting
=
0.05cc x 6.80 lb/gal x 15.8503*
=
1.80 minutes
.5 lb/MMCF x 6.00 MCF/hr
Example #2 Timer setting
=
0.05cc x 0.815 g/cc x 60000*
=
1.80 minutes
8 mg/m³ x 170 m³/hr
* conversion constant
NOTE:
To obtain maximum battery life, choose the longest time interval and the largest pump dis-
placement setting possible.
