EJCLT Differential Pressure Level Transmitter
EJCLT differential pressure level transmitter is suitable to measure liquid, gas, or steam flow as well as liquid level, density and pressure.
- Introduction
- Parameters
- Model
- How to Order
- Video
EJCLT differential pressure level transmitter
EJCLT differential pressure level transmitter is suitable to measure liquid, gas, or steam flow as well as liquid level, density and pressure. outputs a 4 to 20 mA DC signal corresponding to the measured differential pressure. Its highly accurate and stable sensor can also measure the static pressure which can be shown on the integral indicator or remotely monitored via HART communications. Other key features include quick response, remote set-up using communications, self-diagnostics and optional status output for pressure high/low alarm. The range Limits is 0—1kPa～2MPa, The flange’s working pressure are 1.6/4MPa,6.4MPa,10MPa,150psi,300psi or 600psi.
Operation Theory and Structure
Differential pressure level transmitter is composed of series differential pressure transmitter and the welding installation level flange. The operation theory is the same as series differential pressure transmitter (look series differential pressure transmitter general specifications), Only the high pressure side of pressure transmission path is different.The pressure Loaded in the high side, pass from the isolation diaphragm and silicone oil in the flange to the sensor.
Technical Parameter for EJCLT Differential Pressure Level Transmitter
Input
Measured value: Differential pressure, Level
Measuring range
Lower range value: -100% to +100% of the
Output
Output signal
Two wire 4 to 20 mA DC output with digital communications, linear or square root programmable. HART FSK protocol are superimposed on the 4 to 20 mA signal. Output range: 3.9 mA to 20.5 mA.
Failure Alarm (the mode can be selected)
Low Mode (min): 3.7 mA, High Mode (max): 21 mA
No Mode (hold): Keep the effective value before the fault. Note: The standard setting of failure alarm is High Mode.
Response Time
The amplifier damping constant is 0.1 sec; The sensor and flange’s damping constant is 0.2~3 sec, it depends on the range and range compression ratio. Amplifier damping time constant is adjustable from 0.1 to 60 sec by software and added to response time.
Model Selection for EJCLT Differential Pressure Level Transmitter
| Flange sealing device | ||
| Flange sealing device | ||
| EJC | LT | Level flange sealing , no capillary |
| Process connection, Flange and diaphragm material | ||
| A | DN50 DIN 2501 | E DN2526 316L stainless steel |
| B | DN50 DIN 2501 | E DN2526 Hastelloy C |
| C | DN50 DIN 2501 | E DN2526 Tantalum |
| H | DN80 DIN 2501 | E DN2526 316L stainless steel |
| I | DN80 DIN 2501 | E DN2526 Hastelloy C |
| G | DN80 DIN 2501 | E DN2526 Tantalum |
| D | DN2″ANSI B 16.5 | RF ANSI B 16.5 316L stainless steel |
| E | DN2″ANSI B 16.5 | RF ANSI B 16.5 Hastelloy C |
| F | DN2″ANSI B 16.5 | RF ANSI B 16.5 Tantalum |
| K | DN3″ANSI B 16.5 | RF ANSI B 16.5 316L stainless steel |
| L | DN3″ANSI B 16.5 | RF ANSI B 16.5 Hastelloy C |
| M | DN3″ANSI B 16.5 | RF ANSI B 16.5 Tantalum |
| N | DN4″ANSI B 16.5 | RF ANSI B 16.5 316L stainless steel |
| O | DN4″ANSI B 16.5 | RF ANSI B 16.5 Hastelloy C |
| P | DN4″ANSI B 16.5 | RF ANSI B 16.5 Tantalum |
| Working pressure | ||
| 1 | PN 1MPa/4MPa | DIN 2501 |
| 2 | PN 6.4MPa | DIN 2501 |
| 3 | PN 10MPa | DIN 2501 |
| 6 | 150psi | ANSI B 16.5 |
| 7 | 300psi | ANSI B 16.5 |
| 8 | 600psi | ANSI B 16.5(not including DN4″ANSI B 16.5 |
| Process connections | ||
| F | Flat sealing | |
| H | Bulge sealing 316L stainless steel,extended diaphragm seal 50mm | |
| I | Bulge sealing 316L stainless steel,extended diaphragm seal 100mm | |
| G | Bulge sealing 316L stainless steel,extended diaphragm seal 150mm | |
| L | Bulge sealing Hastelloy C, extended diaphragm seal 50mm | |
| M | Bulge sealing Hastelloy C, extended diaphragm seal 100mm | |
| N | Bulge sealing Hastelloy C, extended diaphragm seal 150mm | |
| Fill fluid | ||
| S | Silicone oil -30-200 °C | |
| V | Vegetable oil 0-250°C | |
| Diaphragm Protection | ||
| N | None | |
| 1 | EFP plated on 316L, ≤180°C | |
| 2 | PFA plated on 316L, ≤260°C | |
| 3 | PTFE coated on 316L[2], ≤200°C | |
- How to order EJCLT differential pressure level transmitter
- Medium
- Range
- Flange size ,rating and standard
- Accuracy
- Other requirement
EJCLT Differential Pressure Level Transmitter
