E-888-5-E
5
MODEL
EL4001
TB
1
TB
2
TB
1
TB
2
TB
3
PLS OUT
3
T
EMP
IN
TEMP
IN
FLOW IN
0V
＋
−
B
b
A
＋
−
＋
−
＋
−
＋
−
＋
−
SIG
SUP
SU
P
ANA
OUT
GND
POWE
R
N（
−
）
H（
＋
）
PRESS IN
PLS OUT
1
PLS OUT
2
1/
1
OUT
2. GENERAL
Using the most advanced electronic tehcnologies, this digital instrument has been developed specifically
to meet the most demanding flow measurement applications in petroleum products receiving facilities
where accuracy is the prime requirement.
In response to the liquid flowrate and temperature information arriving from the sensing terminal, such as
a flowmeter, it totalizes the flow while implementing meter error and temperature corrections.
An analog output and instant flowrate (corrected for meter error and temperature) output are additional
provisions.
2.1 Features
() Incorporated capabilities to calibrate meter error for viscosity and flow velocity (viscosity correction),
to correct by volumetric conversion factor (temperature correction), and to display the total flow
readings readily permit the application engineer to build a petroleum products measurement system
with this single instrument.
() Changing the meter factor, ranges of temperature, or other parameters, of the companion
flowmeter is simple by keystrokes on the front-panel keypad, or by inserting an IC card into the slot.
() Built around a microprocessor, the instrument carries out calculations entirely in digital signal
processing circuits to achieve a high degree of accuracy and reliability.
() Variables, such as temperature and totals, can be reviewed on command with the front panel
keypad, whether or not calculation is in progress.
(5) Viscosity and density settings are continuously adjustable. Also, by switching the oil kind, the
instrument is compatible with three different kinds of oils.
() Remote viscosity and density read/write through the communication link is acceptable.
() A nonvolatile memory (E
PROM) retains all parameters and variables. Variables are resettable
following a power cycle or reset if so configured.
2.2 Part Names and Functions
Fig. . Part Names
Function Keys
Display
IC Card
Shift Keys
Seal Screw
Terminal Blocks
