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首页>> 传感器类>> 压力变送器>> P72S P74S紧凑型压力变送器和显示器WISE SENSOR INC

P72S
商品名称:P72S P74S紧凑型压力变送器和显示器WISE SENSOR INC
商品品牌 :WISE SENSOR 订购电话 :0760-88886370 88886371 88886372 88886373 88732779
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Compact Pressure Transmitter With Local Display
紧凑型压力变送器本地显示器
Advantages General Description
􄤎High precision pressure transmitter with
local display for industrial applications
􄤎Measuring ranges from 250mmH2O to
350kgf/cm2
􄤎Advanced piezoresistive silicon or
capacitive ceramic measuring cell
􄤎Excellent accuracy and long term
stability
􄤎Extremely high proofed pressure
􄤎LED 31/2 digit display with 4~20mA
2-wire current output signal
􄤎Explosion protected terminal head rated
Ex d IIC T6
Applications
The P7XS series pressure transmitter is
ideal for measurements which require a
local display and a need to
communicate with remote data acquisition
equipment in industrial applications. The
2-wire 4 to 20mA signal can
be transmitted over great distance with
negligible loss of accuracy.
􄤎Standard hydraulic and pneumatic
equipments
􄤎Regulation system of transmission line
of LPG and LNG
􄤎Machine tools and automatic
machinery
􄤎Flow control and water treatment
􄤎Oil and off-shore industry
􄤎Equipments for chemical and
petrochemical industry
􄤎Automation system and plant
engineering
􄤎Liquid level measurement
P7XS series pressure transmitter with local display is a
signal conditioned, media-isolated pressure transmitter
that can be used for a wide variety of applications. The
transmitter offers the convenience and easy installation
of a LED display with the full capabilities of a highly
accurate 4~20mA 2-wire system design. The 2-wire 4 to
20mA output signal can be transmitted over great
distances with negligible loss of accuracy. The stainless
steel surfaces make it compatible with a wide variety of
gases and liquids and can be protected from harsh
environment.
It is extremely versatile and suitable for measuring
dynamic or static pressure. The transmitters are available
as absolute and relative pressure types with either 2-wire
current or 3-wire voltage output.
The pressure to be measured acts through thin corrosion
resistant stainless steel 316L diaphragm on a silicon
measuring element. The pressure transmitting medium is
silicon oil. The measuring element contains diffused
piezoresistive resistors which are connected into a
Wheatstone bridge. The output signal of this bridge is
temperature compensated and converted into a
standardized current or voltage output signal.
Model P72S P74S
Technology Piezoresistive silicon pressure sensor Capacitive ceramic pressure sensor
Pressure ranges 0~0.1 to 350kgf/cm2 relative pressure 0~250mmH20 to 70kgf/cm2 relative
0~1 to 350kgf/cm2 absolute pressure 0~1 to 70kgf/cm2 absolute
Pressure reference Gauge, absolute, vacuum and compound
Overload 3×full scale without damage 6×full scale without damage
Current output signal 4~20mA DC 2-wire technique
Voltage output signal 1~5V DC 3-wire technique
Other output signal available on request
Local display LED 31/2 digit
Excitation voltage 12~36V DC
Load resistance
max@24V 500Ω at 24V
Influence of excitation 0.01% FSO/V
Power ripple ≤500mV P-P
Reverse polarity Protected
Shock resistance No change in performance after 10Gs for 11ms
Vibration 0.1G (1 m/s/s) maximum
Response time(10~90%) ≤2 milliseconds 1 milliseconds
Adjustment ±10% FSO/zero and span ±20% FSO/zero and span
Accuracy ≤±0.25% FSO ≤±0.2% FSO
Non-linearity ±0.100% FSO typical ±0.15% FSO
Repeatability ±0.015% FSO typical ±0.10% FSO
Pressure hysteresis ±0.010% FSO typical ±0.10% FSO
Long term stability ±0.3% FSO over 6 month Max. annual error ±0.10% FSO
Cutoff frequency(-3 d B) ≤2kHz
Reference temperature 35°C 25°C
Operating temperature range -40~125°C -40~125°C
Compensated temperature range 0~82°C -20~80°C
Thermal sensitivity shift ≤±0.2%FSO in reference to 35°C typical ≤±0.05%FSO
Thermal zero shift ≤±0.2% FSO in reference to 35°C typical ≤±0.1%FSO
Thermal hysteresis ≤±0.1% FSO in reference to 35°C typical ≤±0.1%FSO
Process connection PT1/4″, PT3/8″, PT1/2″male thread
PF1/4″, PF3/8″, PF1/2″male thread
Other connections available on request
Process media Compatible with stainless steel 316 Ceramic Al2 O3, 96%
Materials wetted by process Diaphragm : Stainless steel 316L Ceramic Al2 O3, 96%
Housing : Aluminum Die-casting
Gasket O-ring : Viton (HNBR, CSM, etc.)
Enclosure rating IP65
Explosion protection Ex d IIC T6
Influence of mounting position Under 0.5kgf/cm2, mounted vertically Not critical
Weight Approx.(802g)
Options Sealed diaphragm with thread connection
Sealed diaphragm with flange mounting
Siphon tube
Sealed diaphragm with capillary
Note : ① For high pressure measurement, this model is available up to 2000kgf/cm2 with thin film pressure sensor.
② If it is installed in explosive atomosphere, the covers should be kept tight when circuit alive.
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