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LPT-F diaphragm pressure transmitter
● High-performance single crystal silicon core
● 24-bit high-precision ADC
● Dual compensation for core and circuit
● Configurable via HART handheld device
● Can be used for open container liquid level measurement
● Output damping can be set
● Has RS485 function (please specify when ordering)
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Product Description
Product Overview Product overview
The LPT-F series diaphragm pressure transmitter adopts a microprocessor core modular design in circuit design, which has good anti-interference performance. The internal configuration of temperature sensors compensates for the transmitter, improving measurement accuracy and reducing temperature drift, with characteristics such as long-term stability, high reliability, and strong self-diagnosis capability. Users can calibrate, set, and configure the transmitter through the HART communication handheld device. The interface is fully designed in Chinese, with different password permissions, making it convenient for users to set. It is widely used in chemical, metallurgy, water conservancy, electric power, petroleum, and other occasions.
Performance Indicators TECHNICAL PARAMETERS
| Measuring Medium | Gas, Liquid, Steam | ||
| Measuring Range | Minimum Range (kpa) | Range and Sensor Limit Value (kpa) | |
| Maximum Range (URL) | Minimum Range (LRL) | ||
| 1.0 | 6.0 | -6.0 | |
| 4.0 | 40 | -40 | |
| 10.0 | 100 | -100 | |
| 12.5 | 250 | -100 | |
| 25.0 | 500 | -100 | |
| 25.0 | 1000 | -100 | |
| 87.5 | 3500 | -100 | |
| Range Ratio: | 40:1 | ||
| Accuracy | 0.2 grade, 0.5 grade (including linearity, hysteresis, and repeatability) | ||
| Range Ratio Impact: | 0.2 grade | When the range ratio is 1:1—10:1, the calibration range is ±0.20%; | |
| When the range ratio >10:1, it is ±[0.03×range ratio-0.1]%. | |||
| Stability | 0.2 grade | The error over 36 months is ±0.25% of the maximum range | |
| Temperature Impact | 0.2 grade | Zero or range error is ±0.25% of the maximum range/28℃ | |
| Power Supply Impact | Less than ±0.005%/V of the calibration range | ||
| Vibration Impact | Less than ±0.05% of the maximum range/g | ||
| Installation Impact | Zero drift does not exceed 0.25kPa, this error can be eliminated by zero adjustment, with no impact on the range | ||
| Static Pressure Impact | Zero Point Impact | ±0.1% URL/10MPa | |
| Range Impact | ±0.2% URL/10MPa | ||
| Output Signal | 4-20mA+HART (can also have RS485) | ||
| Power Supply | 15-36VDC | ||
| Ambient Temperature: | -40℃~85℃ | ||
| Medium Temperature | -40℃~120℃ | ||
| Storage Temperature | -40℃~85℃ | ||
| Display | 7-digit LCD display | ||
| Protection Level | IP65 | ||
| Explosion-proof Level | Exd IIC T6Gb | ||
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Installation Requirements INSTALLATION
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Tianjin Ling Yu Technology Co., Ltd.
Operator:86-22-58554679
Fax: 022-58285528
After-sales technical support:86-18920413023
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Factory Address: No.5 Yingbin Road, Xiqing District, Tianjin
E-mail:sales@lingyukeji.com
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