Yokogawa EJX438B - Manual (Page 87)

<10. General Specifications>
10-1
IM 01C27H01-01E
10. General Specifications
10.1 Standard Specifications
Communication protocol
ISA100.11a protocol
Data rate
250 kbps
Frequency
2400 - 2483.5 MHz license free ISM band
Radio security
AES 128 bit codified
RF Transmitter power
Max. 11.6 dBm (fixed)
Antenna
+2 dBi Omni directional monopole type
Span and range limits
EJX118B
Measurement
Span/Range
M
H
2 to 100
–500 to 500
Span
Span
Range
Range
kPa
8 to 400
–400 to 400
–2000 to 2000
40 to 2000
–100 to 100
10 to 500
20 to 1000
–5000 to 5000
–1000 to 1000
100 to 5000
inH
2
O(/D1) mbar(/D3) mmH
2
O(/D4)
200 to 10000
–10000 to 10000
0.1 to 5 kgf/cm 2
–5 to 5 kgf/cm 2
T01E.ai
EJX438B
Span
Flush
type *1
Extended
type *1
–1 to 160
1.6 to 160
–1 to 35
23 to 1000 1.6 to 70 0.16 to 7
Span
Range
Range
0.16 to 16
–0.1 to 16
–0.1 to 3.5 –14.5 to 500
–14.5 to 2300
0.035 to 3.5 5 to 500 Span
23 to 2300
MPa
–0.1 to 7 –14.5 to 1000 Range –1 to 70
1.6 to 160
–1 to 35
1.6 to 70
–1 to 70
–1 to 160
kgf/cm 2 (/D3) psi (/D1) bar (/D2)
0.35 to 35 0.35 to 35
Measurement
Span and Range
A *1
T02E.ai
B
2
*1: Measurement range is within the flange rating.
Performance specifications
Refer to GS01C27H01-01EN
Update Time
Measurement
mode
Differential
pressure
Pressure
Continuous 100 ms 100 ms
Intermittent
0.5 to 3600 s
selectable
0.5 to 3600 s
selectable
For amplifier housing code 7:
The transmitter shifts to the countinuous mode
when the update time is set to 1 second.
Minimum update time is 1 second.
For amplifier housing code 8 and 9:
The transmitter shifts to the countinuous mode
when the update time is set to 0.5 second.
Power Supply Specifications
Battery:
Use the dedicated battery pack.
Rated voltage: 7.2 V
Rated capacity: 19 Ah
Output
Wireless (ISA100.11a protocol) 2.4 GHz signal.
Output mode for EJX118B, linear or square
root, is selectable.
Zero Adjustment Limits
Zero can be fully elevated or suppressed, within
the lower and upper range limits of the capsule.
External Zero Adjustment
External Zero is continuously adjustable with
0.01% incremental resolution of span. Re-range
can be done locally using the digital indicator
with range-setting switch.
Integral Indicator (LCD display)
5-digit numerical display, 6-digit unit display and
bar graph.
The indicator is configurable to display one
or up to three of the following variables
periodically.; Differential pressure, static
pressure, temperature.
Self Diagnostics
Capsule failure, amplifier failure, configuration
error, battery alarm, wireless communication
alarm and over-range error for process
variables.
Capillary Fill Fluid Density Compensation
Compensation of the zero shift by the ambient
temperature effect on the capillary tube.
Ambient Temperature Limits
-40 to 85°C (-40 to 185°F)
-30 to 80°C (-22 to 176°F) LCD visible range
Note: The ambient temperature limits must be within the fill fluid
operating temperature range, see table 10.1.
Process Temperature Limits
See table 10.1.