Universal remote control differential pressure transmitter provide several credible measure method for avoiding the medium contact the membrane of the transmitter, application as follow.
1.transmitter need to be isolated from high temperature medium
2.medium is able to corrupt the sense organ of the transmitter
3.suspension or High Viscosity medium
4.medium would curing or crystallization
5.If change the medium, the connection need to be cleaned strictly.
6.connection must keep clean.
Analog output: two –wire 4-20mADC
Digital output: two –wire 4-20mADC and superimposing variable digital signal accord with HART
supply voltage 12.5-45VDC
Max load resistor Rmax in loop decided by the supply voltage, see the below drawing. HART PROTOCOL require the load resistor not less than 250Ω,not more than 600Ω
Max. 1.5Km, multi-address communication can connect 15 smart transmitters Max.
4 digital display,5 digit LCD display, pointer type.
ExiaIICT5;explosion suppression type
Can positive transfer or negative transfer, but can not overstep the utmost value
ambient temperature -40-85℃(When choose LCD : -20-70℃)
Filled oil operating Tem.
Silicon oil:-29~+149℃ inert oil:-18~+204℃
Static pressure and single side overpressure
less than 5 sec.
Less than 0.16cm3
In the condition : No offset, 1.53m capillary fill with silicon oil, 316SS diaphragm
remote transmission fitting( typical) one side with(1.53m capillary remote transmission fitting)
error is less than 0.62Kpa/55℃,capillary fill with silicon oil, the error increase 0.2 KPa along with the length increase1.53m
Thread and Flange pattern
error is less than 1.99Kpa/55℃,capillary fill with silicon oil, the error increase 0.62 KPa along with the length increase1.53m
withstand frequency 200Hz at any direction, arouse error ±0.05%URL
no load influence
Mounting position influence
about 250Pa zero offset, can be eliminate via calibration, no range influence.
drift is ±0.1%span in the condition of 30-1000MHz frequency and the most field intensity 10V/m
Xi'an Yunyi Instrument Co., Ltd. is a professional manufacturer that engaged in the fields of pressure measurement instrument, the chief engineer Mr Tian has more than 30 years on this area, he is one of the engineers who introduced the Rosemount technology. We specializing in developing high precision pressure transmitter and pressure gauges. And we also develop temperature transmitter, level transmitter, densitometer etc. They are widely used in chemical, petroleum, paper, electricity, city gas, environmental protection, water treatment and other fields.