IM 01C25R01-01E
10-2
10. GENERAL SPECIFICATIONS
Damping Time Constant (1st order)
Amplifier damping time constant is adjustable from
0.00 to 100.00 seconds and added to response time,
applicable for DP, SP, ET, and flow independently.
Update Period “
”
T1006E.EPS
Signal
Flow rate
Differential pressure
Static pressure
External temperature
Total flow
Time (msec)
100
100
100
400
1000
Zero Adjustment Limits
Zero can be fully elevated or suppressed, within the
lower and upper range limits of the capsule, applicable
for DP, SP, and ET independently.
External Zero Adjustment “
”
External zero for DP is continuously adjustable with
0.01% incremental resolution of span.
Integral Indicator (LCD)
5-digit (Flow, DP, SP, and ET) or 6-digit (Total flow)
numerical display, 6-digit unit display and bar graph.
The indicator is configurable to display one or up to
four variables periodically.
Burst Pressure Limits
69 MPa (10000 psi)
Self Diagnostics
CPU failure, hardware failure, configuration error,
process alarm for differential pressure, static pressure
and capsule temperature.
Mass Flow Calculation
Auto Compensation Mode
(EJXMVTool is required for configuration)
Configuration of the fluid physical properties and
primary element for the EJX910A can be performed
using a dialog window of EJXMVTool.
All flow factors for mass flow calculation are dynami-
cally compensated to an optimum value.
In Auto mode, mass flow can be measured with high
accuracy.
The flow factors that are automatically compensated
are discharge coefficient, diameter of primary device,
upstream internal pipe diameter, gas expansion factor,
density, and viscosity.
EJXMVTool (For HART Protocol type): Mass Flow
configuration Software Model FSA210. (Refer to GS
01C25R50-01E)
FSA210 software package is used to perform mass
flow configuration for the EJX910A. This software can
also read and write the general parameters of HART
communications. Configuration of the fluid physical
properties and the primary element of the EJX910A
can be done by means of a dialog menu.
EJXMVTool runs on a notebook PC equipped with a
HART modem.
Basic Flow Calculation Mode
Flow operation and density compensation are per-
formed conventionally, with the flow factors being
input manually.
The operational expression is switched by the fluid
type and the unit setting.
Density compensation by phase
Gas: Compensation as ideal gas by temperature and
pressure.
Liquid: Compensation by temperature.
Flow operational expression refer to Table 2.1.
Symbol refer to Table 2.2
Flow unit categories refer to Table 2.3, 2.4, 2.5
NORMAL OPERATING CONDITION
(Optional features or approval codes may affect limits.)
Ambient Temperature Limits
–40 to 85
°
C (–40 to 185
°
F)
–30 to 80
°
C (–22 to 176
°
F) with LCD display
Process Temperature Limits
–40 to 120
°
C (–40 to 248
°
F)
Ambient Humidity Limits
0 to 100% RH
Working Pressure Limits (Silicone oil)
Maximum Pressure Limits
L Capsule
16 MPa (2300 psi)
M and H Capsule
25 MPa (3600 psi)
