Melan Measurement & Control Instruments (Shanghai) Co.,Ltd.
MELAN MEASUREMENT & CONTROL INSTRUMENTS (SHANGHAI) CO., LTD.
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Digital Pressure Transmitter With Hart Output
1. Introduction
ML2000W series diffusion silicon pressure transmitter adopts the advanced transducer as sensitive element. It applies shielding and eliminating process of new hit-resistant capacitance, RF, over current and strong voltage signal. The subsequent circuit has higher stability and capacity of resisting disturbance because the peripheral circuit layout and component selection are more reasonable than American TI (BB) company operational amplifier.
Gauge Pressure Transmitter / transducer (GP) is a pressure transmitter for Gauge pressure measurement. Gauge pressure transmitter can measure the pressure of liquid, gas or steam. And convert it into 4 ～ 20mA DC signal output. The GP pressure transmitter can communicate with the HART Communicator, through which it can be set and monitored. Gauge pressure refers to pipeline pressure. “Gauge pressure” starts from atmospheric. Gauge Pressure plus atmospheric is the absolute pressure.
2.Technical Parameter
① Power supply non polar connection(Only analog circuit, 24VDC power supply)
② Field or Outside lightning prevention design
3. Configuration
| Type | Specification Code | Illustration |
| ML2¨¨¨W | --------------------------------- | Diffused Silicon Pressure Transmitter |
| Transducer | 0-------------------------------- | Diffused Silicon Transducer |
| Accuracy | 8-------------------------------- | ±0.2% |
| 5-------------------------------- | ±0.1% | |
| Output | 8-------------------------------- | 4-20mA |
| 1-------------------------------- | 4-20mA, HART | |
| W-------------------------------- | ||
| Contact Medium Mode | F-------------------------------- | Remote Transmission Flange Installation Type |
| G-------------------------------- | High Temperature Heat Radiation Type(0-200℃) | |
| P-------------------------------- | Flat Diaghragm Contact Type | |
| L-------------------------------- | Thread Connection * | |
| Connection Mode | 2-------------------------------- | Flange Connection (Note 1) |
| 3-------------------------------- | M20x1.5 * | |
| 4-------------------------------- | Other Thread Connection (Note 2) | |
| Measuring Range | 1-------------------------------- | 0-5~35KPa |
| 2-------------------------------- | 0-35~100KPa | |
| 3-------------------------------- | 0-50~200KPa | |
| 4-------------------------------- | 0-100~350KPa | |
| 5-------------------------------- | 0-200~700KPa | |
| 6-------------------------------- | 0-0.5~2.1MPa | |
| 7-------------------------------- | 0-1~3.5MPa | |
| 8-------------------------------- | 0-3~7MPa | |
| 9-------------------------------- | 0-7~21MPa | |
| 0-------------------------------- | 0-15~40MPa | |
| Y-------------------------------- | Specific Range (Note 3) | |
| Display Header | D-------------------------------- | Multiple Parameters & Modes Digital LED Display Header (Note 4) |
| L-------------------------------- | Common LED Header | |
| Z-------------------------------- | Pointer Header | |
| N-------------------------------- | No Header | |
| Electrical Connection | 5-------------------------------- | M20x1.5 Waterproof Concentrator |
| Power Supply | -A------------------------------- | 24VDC |
| -B------------------------------- | 12VDC | |
| Additional Type | -NF1---------------------------- | Ex-proof Certificate: Exd II CT6 |
| -NS1---------------------------- | Intrinsic Safety Type: Exi II CT4 | |
| -M------------------------------- | Other Requirements(Note5) | |
| Remarks: | ||
| e.g.:ML2088WLM6L5-A-NF1 0-1.6MPa | ||
| e.g.:ML2051WLM7D5-B-NS1 0-2.5MPa | ||
| Note1: Please indicate the flange size behind type if you choose this code | ||
| Note2: Please indicate the thread size behind type if you choose this code | ||
| Note3: Please indicate specific range behind type | ||
| Note4: Only output code1 is available | ||
| Note5: Please note in order | ||
| *: Standard | ||