E-886-2-E
1
Calculate Item
(Models)
Calculation Formula
Molecular
weight
(EL4321)
t
x
+
273.15
0.101325
M
=
d
・
・
・
1/X
・
MOL
[
g/mol
]
273.15
P
x
+
0.101325
where MOL
=
Volume at 0
°
C and 1 atm. 22.4136
[
l
]
Specific weight
(EL4321)
t
x
+
273.15
0.101325
1
SG
=
d
・
・
・
1/X
・
273.15
P
x
+
0.101325
RSG
where RSG
=
Density of air at 0
°
C and 1 atm. 1.293
[
g/l
]
8. PREPARATIONAL CHECKS AND OPERATION
8.1 Preparation Before Operation
(1) Ensure that the instrument and related equipment are correctly installed and wired with no place left
unfinished.
WARNING: Make sure to see that the power terminals are connected to a power
source of the rated voltage. Applying a power source of incorrect voltage
could ruin your instrument.
(2) Supply power to this instrument and make certain to see that the front panel display is illuminated.
The display will remain unilluminated for one second after power on, which however is by no means
any indication of fault.
8.2 Preparational Checks
CAUTION: Allow a warmup period for 60 minutes or so after you turn on the power.
Verify if the instrument operates with no fluid flow.
How to Check
(1) Couple sources of simulated temperature and pressure signals.
(2) Using the shift keys, select menu items and verify the information displayed.
NOTE: See the KEY OPERATION MANUAL.
(3) Inject a simulated input pulse train or density signal representing the type of the companion pulse
generator.
(4) Select display menu items of the total count before correction and corrected total count, or the density
before correction and corrected density, and make sure that incoming pulses are being accumulated
or calculated. Also, verify that pulse output and analog output are properly generated.
(5) Compare the obtained readings on the display with corresponding theoretical values.
8.3 Operation
CAUTION: Allow a warmup period for 60 minutes or so after you turn on the power.
(1) Select your power reset or non-reset (accumulated total) option.
NOTE: See the KEY OPERATION MANUAL.
(2) Turn on power. While the initial check screen remains displayed, indicating that the process of veri-
fying parameters and variables is in progress after you turned on the power, your instrument will not
accept any pulse input.
(3) Place your instrument in service operation by allowing the fluid to be metered.