BXY6002 gauge pressure remote transmitter
BXY6003 Absolute Pressure Remote Transmission Transmitter
1 Application
The diaphragm box of the
remote transmitter is used to prevent the medium in the pipeline from
directly entering the pressure sensor component of the transmitter. It
uses silicone oil and other filling liquids to transmit pressure
between the transmitter and it.
The BXY6002/3 gauge/absolute pressure
remote transmitter is used to measure the liquid level, density, and
pressure of liquids, gases, or vapors, and then convert them into 4-
20mADC HART current signals for output. BXY6002/3 can also communicate
with RST375 handheld terminals or RSM100 Modems for parameter setting,
process monitoring, etc. The measurement range of the BXY6002/3
gauge/absolute pressure remote transmitter (when not relocated) is 0-
6kPa~25MPa, and the rated pressure of the remote flange is 1.6/4MPa,
6.4MPa, 10MPa, 150psi, 300psi, or 600psi, respectively.
2 Working Principle
and Structure
The BXY6002/3 gauge/absolute pressure remote transmitter
consists of a BXY6002/3 series gauge/absolute pressure transmitter and
a welded and installed capillary remote flange. Its working principle
is the same as the BXY6002/3 series gauge/absolute pressure
transmitter (refer to the technical specifications of the BXY6002/3
series gauge/absolute pressure transmitter), but the pressure
transmission path is slightly different: the pressure acting on the
remote flange side first passes through the diaphragm and filling
liquid on the remote flange, then through the capillary, and finally
reaches the measurement end of the measurement sensor.
3 inputs
Measurement
parameters: gauge pressure, absolute pressure, liquid level
measuring range
Gauge
pressure remote transmitter:
Lower limit value: from -100% URL
(continuously adjustable)
Upper limit value: to+100% URL
(continuously adjustable)
Absolute pressure remote
transmitter:
Lower limit value: from 0 to 100% URL (continuously
adjustable)
Upper limit value: to+100% URL (continuously adjustable)
range
Table 1 Comparison Table of Range Code and Range Range
Relationship
|
Range code
|
minimum range
|
maximum
range
|
Rated pressure (maximum)
|
|
C
|
6kPa
|
40kPa
|
Rated pressure of
liquid
level flange
|
|
D
|
25kPa
|
250kPa
|
|
F
|
30kPa
|
3MPa
|
|
G
|
1MPa
|
10MPa
|
|
H
|
2.1MPa
|
21MPa
|
|
I
|
4MPa
|
40MPa
|
|
L
|
6kPa Absolute pressure
|
40kPa Absolute pressure
|
|
M
|
25kPaAbsolute pressure
|
250kPa
Absolute pressure
|
|
O
|
30kPa Absolute
pressure
|
3MPa Absolute pressure
|
Table 2 Comparison Table of
the Relationship between Remote Transmission Flange and Minimum
Range
|
flange
|
Nominal diameter
|
Min/Max Range
|
Maximum
capillary length
|
|
Flat type
|
DN 25/1”
|
160kPa/25MPa
|
10m
|
|
DN 50/2”
|
10kPa/10MPa
|
12m
|
|
DN
80/3”
|
6kPa/10MPa
|
16m
|
|
DN 4”
|
6kPa/3MPa
|
16m
|
|
plug-in
|
DN 50/2”
|
16kPa/10MPa
|
10m
|
|
DN 80/2”
|
6kPa/10MPa
|
16m
|
|
DN 4”
|
6kPa/3MPa
|
16m
|
|
Thread mounted
remote transmission
|
outside diameter
109mm
|
160kPa/25MPa
|
10m
|
The minimum range of gauge/absolute pressure remote
transmitter should be Table 1 and Table 2
The larger value of the
minimum range in. The adjusted range shall not be less than the
minimum range. The maximum range of the gauge/absolute pressure remote
transmitter should be the minimum of the maximum range of the
transmitter body and the rated pressure of the remote
flange.
4
output signals
2-wire system, 4-20mADC HART output, digital
communication, with HART protocol loaded on 4-20mADC signal.
Output signal limit:
Imin=3.9mA, Imax=20.mA
Alarm current (mode can be set)
Low alarm
mode (minimum): 3.7 mA
High alarm mode (maximum): 21
mA
No
alarm mode (hold): maintain the effective current value before the
fault
Alarm current standard setting: high alarm mode
5 Response time
The damping constant
of the amplifier component is 0.1s; The time constant of the sensor
and remote flange is 0.2-6s, depending on the sensor's range, range
ratio, capillary length, and the viscosity of the filled liquid. The
additional adjustable time constant is 0.1~60s.
6 General
conditions
6.1 Installation conditions
Gauge/absolute pressure remote
transmitters without capillaries can be installed directly through
remote flanges, and positional deviations will result in correctable
zero offset. The electronic watch case can rotate up to 360 °, and
the positioning screw can fix it in any position.
The gauge/absolute pressure
remote transmission flange is connected to a matching flange that
complies with ANSI/DIN standards. The matching flange should be
equipped with soft gaskets and fixed bolts and nuts (users can choose
to install bolts and nuts).
For gauge/absolute pressure remote
transmitters with capillary tubes, if the remote sealing device is
lower than the transmitter body, the maximum height difference between
the remote sealing device and the transmitter body should be<5m.
When the working pressure is below 100kPa absolute pressure, the
transmitter body must be lower than the remote sealing
device.
The minimum bending radius of the capillary is 75mm, and winding is
strictly prohibited!
6.2 Environmental conditions
ambient
temperature
Minimum: depending on the filling fluid
Maximum: 85 ℃
When equipped with LCD
display and fluororubber sealing ring, -20~65 ℃
Storage
temperature/transportation temperature
Minimum: depending on the filling
fluid
Maximum: 85 ℃
Relative humidity: 0-100%
Impact resistance
Acceleration: 50g
Duration:
11ms
Anti
vibration
2g to 500Hz
Electromagnetic compatibility (EMC)
See Table 4 "Electromagnetic
Compatibility Schedule" on the next page
6.3 Process Medium
Temperature Limit
Medium temperature: -30~400 ℃
Table 3 Relationship between
Filling Fluid, Working Temperature, and Minimum Working
Pressure
|
Fill Fluid
|
silicone oil
（S）
|
High
temperature
silicone oil（H）
|
Ultra high
temperature silicone oil(U)
|
vegetable oil（V）
|
|
density25℃
|
960
kg/m3
|
980
kg/m3
|
1020
kg/m3
|
937
kg/m3
|
|
Operating temperature
range
|
-30～
200℃
|
-10～
350℃
|
-10～
400℃
|
0～
250℃
|
|
|
|
temperature
|
Working pressure range (kPa absolute
pressure)
|
|
20℃
|
>10
|
>10
|
>10
|
>25
|
|
100℃
|
>25
|
>25
|
>25
|
>50
|
|
150℃
|
>50
|
>50
|
>50
|
>75
|
|
200℃
|
>75
|
>75
|
>75
|
>100
|
|
250℃
|
|
>100
|
>100
|
>100
|
|
350℃
|
|
>100
|
>100
|
|
|
400℃
|
|
|
>100
|
|
Note: If the working temperature and
pressure relationship exceeds the above range, it should be specially
pointed out that special designs can be used to meet the
requirements.
Pressure limit of transmitter body: vacuum to maximum
pressure
Rated pressure of remote transmission flange:
ANSI standard:
150psi~600psi
DIN standard: PN 1.6MPa~PN 10MPa
weight
DN 50/2 "is about 7-10kg, DN
80/3" is about 8-11kg, and DN 4 "is about 9-12kg.
Explosion proof
performance
NEPSI Flameproof License: Ex d Ⅱ C T6
NEPSI Intrinsic Safety
License: Ex ia IIC T4
Permissible operating temperature: -40 ℃~65 ℃
6.4 Power supply and
load conditions
The power supply voltage is 24V
R ≤ (Us-12V)/Imax k
Ω
Where
Imax=23 mA
Maximum power supply voltage: 42VDC
Minimum power supply voltage: 12VDC,
15VDC (backlight LCD display)
Digital communication load range:
250~600 Ω
material quality
Measurement capsule: stainless steel 316L
Diaphragm: stainless
steel 316L, Hastelloy C, tantalum
Process flange: stainless steel
304
Filling fluid: silicone oil, high-temperature silicone oil, ultra-high
temperature silicone oil, vegetable oil
Transmitter housing:
aluminum alloy material, with epoxy resin sprayed on the
surface
Shell sealing ring: nitrile rubber (NBR)
Nameplate: stainless steel
304
Electrical connections
M20X1.5 cable sealing buckle and wiring
terminal are suitable for wires ranging from 0.5 to 2.5mm2.
Process
Connection
The remote flange complies with ANSI or DIN standards. Can be
installed directly, please refer to the dimension diagram.
Shell protection
level: IP67
————————————————————————————
————————————————
Table 4 Electromagnetic Compatibility
Schedule
|
Serial
Number
|
Test items
|
Basic
standards
|
Test conditions
|
Performance
Level
|
|
1
|
Radiated interference
(shell)
|
GB/T
9254-2008Table 5
|
30MHz～1000MHz
|
qualified
|
|
2
|
Conducted interference
(DC power port)
|
GB/T
9254-2008Table 1
|
0.15MHz～30MHz
|
qualified
|
|
3
|
Electrostatic discharge
(ESD) immunity
|
GB/T 17626.2-
2006
|
4kV(Contact point)
8kV(air)
|
B
|
|
4
|
Radio frequency electromagnetic
field
immunity
|
GB/T 17626.3-2006
|
10V/m (80MHz~1GHz)
|
A
|
|
5
|
Power frequency magnetic
field immunity
|
GB/T 17626.8-
2006
|
30A/m
|
A
|
|
6
|
Electrical fast
transient
pulse group immunity
|
GB/T 17626.4-2008
|
2kV(5/50ns,5kHz)
|
B
|
|
7
|
Surge immunity
|
GB/T 17626.5-2008
|
1kV（Between lines）
2kV（Between lines）(1.2us/50us)
|
B
|
|
8
|
Immunity to conducted
interference induced
by radio frequency
fields
|
GB/T
17626.6-2008
|
3V (150KHz～80MHz)
|
A
|
Note: (1) A performance level description: During testing,
the performance is normal within the technical specification
limits.
(2) Performance level description: During testing, the function or
performance temporarily decreases or is lost, but can be restored on
its own. The actual operating status, storage, and data do not
change
7
Dimensions in millimeters
Figure 1 Basic Remote Sealing Device
Diagram (RS Type)
Figure 2 Basic Remote Sealing Device Direct Installation
Diagram (RN Type)
|
