Introduction
PT-DP004 pressure and differential pressure transmitter provide several credible measure method for avoiding the medium contact the membrane of the tranmitter, 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 midium, the connection need to be cleaned strictly.
6. Connection must keep clean.
Technical Parameter
PT-DP004 pressure and differential pressure transmitter provide several credible measure method for avoiding the medium contact the membrane of the tranmitter, 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 midium, the connection need to be cleaned strictly.
6. Connection must keep clean.
Technical Parameter
Output | Analog output: two wire 4~20mADC Digital output: two wire 4~20mADC and variable digital signal in accordance with HART AGREEMENT. |
Power | supply voltage 12.5~45VDC |
Limit load | Max load resistor Rmax in loop decided by the supply voltage,see the below drawing. HART AGREEMENT require the load resistor not less than 250Ω,not more than 600Ω |
Communication distance | Max. 1.5Km, multi-address communication can connect 15 smart transmitters Max. |
Output display | 4 digital display,5 digit LCD display, pointer type. |
Marking | ExiaII CT5 ;explosion-proof isolation type |
Zero offset | can positive offset or negative offset,but can not overstep the utmost value |
Temperature | environment temperature:-40~85ºC (When choose LCD : -20~70ºC ) Medium temperature: -40~104ºC |
Filled liquid operating temperature | Silicon oil: -29~+149ºC Inter oil: -18~+204ºC |
Pressure limit | Thread pattern: 3.45Kpa(Absolute)~13.78Mpa Flange pattern: 3.45Kpa(Absolute) rated pressure of Flange Plug-in pattern: 3.45Kpa(Absolute) rated pressure of Flange Flat pattern: 3.45Kpa(Absolute) rating pressure of Flange |
Relative humidity | 5~98%RH |
Startup time | less than 5 sec |
Capability change | less than 0.16cm3 |
Damp adjust | 0.20~25sec. |
Protection | To avoid the datas are modified random,can utilize software or protect switch lock the memory data. |
Reference condition | In the condition : No offset, 1.53m capillary fill with silicon oil, 316SS membrane |
Temperature influence | long-distance transmission fitting( typical) one side with(1.53m capillary long-distance transmission fitting) |
Flat pattern | error is less than 0.62Kpa/55ºC ,capillary filled with silicon oil, the error increase 0.2 Kpa along with the length increased 1.53m |
Hread and Flange pattern | error is less than 1.99Kpa/55ºC ,capillary filled with silicon oil, the error increase 0.62 Kpa along with the length increased 1.53m |
Libration effect | withstand frequency 200Hz at any direction, arouse error ±0.05%URL |
Power influence | 0.005%/V |
Load influence | no load influence |
Install position influence | about 250Pa zero offset, can be eliminate via calibration,no range influence |
RF interference | drift is ±0.1%span in the condition of 30-1000MHz frequency and the most field intensity 10V/m |