Analog 4~20mA DC Water Pressure Transmitter MPM4891B
Features
•Safe, reliable
• Short circuit protection and reversed polarity protection
• 2-wire current output
• Manual zero-clearing function
• Manual secondary calibration
• compact size, easy installation
Introduction
MPM4891B is newly developed pressure transmitter parts with high accuracy and stability. It is made up of piezo-resistive pressure sensor and specialized processing circuit. It is stable, reliable, compact in size. With zero clearing button and manual pressure calibration function, it is easy for operation. MPM4891B is with OEM package, suitable for application and development for various pressure transmitter.
Specifications
Range: 0kPa~10kPa…40MPa
Overpressure: 1.5FS
Pressure Type: Gauge, Absolute or Sealed Gauge
Accuracy: ±0.5%FS
Power Supply: 11V~28V DC
Output: 4mA~20mA DC (2-wire)
Load Resistance: ≤ (U-11) / 0.02(Ω)
Zero Thermal Drift: ±0.02%FS/ºC
FS Thermal Drift: ±0.02%FS/ºC |
Long-term Stability: ±0.3%FS/year
Operation Temperature: -25ºC~75ºC
Storage Temperature: -40ºC~80ºC
Relative Humidity: 0%~85%
O-ring: Viton
Diaphragm: SS316L
Leading Wire: silicone rubber
Gross Weight: 22g
Media Compatibility: liquid or gas compatible with stainless steel and viton |
Button Function
1. Without pressure, press the button for 5s for zero clearing, it outputs 4mA DC.
2. If the transmitter is excited while pressing the button, it enters calibration mode, the output can be calibrated by LED indication. Please see below chart for functions.
| Button Operation |
Phenomenon |
Function |
| Excite power supply after pressing button |
LED light on |
Enter calibration mode |
| Pressurize to lower limit of pressure |
LED flash 2 times |
Zero calibration finished, low current calibration finished |
| Pressurize to upper limit of pressure |
LED flash 3 times |
FS calibration finished, middle current calibration finished |
| Pressurize to upper limit of pressure |
LED flash 4 times |
Calibration coefficient storage finished, high current calibration finished
|
Outline Construction and Installation
Outline Construction (Unit: mm):
Order Guide
| MPM4891B |
Pressure Transmitter |
|
|
Range |
0kPa~10kPa…40MPa |
| [0~X] kPa or MPa |
X: actual measurement range |
| |
|
Code |
Output |
| E |
4mA~20mA DC (2-wire) |
| |
|
Code |
Construction Material |
| 22 |
SS316L |
| |
|
Code |
Pressure Type |
| G |
Gauge |
| S |
Sealed Gauge |
| A |
Absolute |
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| MPM4891B [0~200]kPa E 22 G the whole spec. |
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Notes
1. Please pay attention to protect sensor isolated diaphragm to avoid damaging the sensor or affecting the performance.
2. Please make sure the measured media shall be compatible with the contacting material.
3. If users have special requirement, please contact us freely.
Certificates We Have
Company Overview
Products Family
FAQ:
1.
Q: Are you manufacturer or trading company?
A: We are 48-year professional manufacturer of Pressure/ Level/ Temperature/Flow transmitters with 4~20mA, Hart, Rs485 & Modbus protocols, pressure sensors with SDI, I2C, 4~20mA, 0.5~4.5V and etc, and wireless IOT measurement transmitters. We provide high quality products with high competitive factory price.
2. Q: What's your quality control system?
A: As an ISO9001:2008 certificated manufacturer, we have strict quality control system, and each product is done fatigue testing, calibration, temperature compensation before shipment. High quality is guaranteed.
3.
Q: Is there MOQ with your product?
A: We have no MOQ limits, 1pc for testing is acceptable.
4.
Q: Do you provide customized products?
A: Yes, we can print your logo on our products; OEM, ODM & customization are welcomed.
5. Q: What is the warranty of your products? And after-sales service?
A: Our warranty time is 12 months after shipment, and our after-sales will respond with your questions in 24hrs, remote instruction by PC network is always available.
6. Q: What is lead time of your product?
A: We are factory, our lead time is always within 10~15 working days for products without customization, but lead time will vary based on different products. You can check detail lead time with our sales.
7. Q: What international certificates do you have for your products?
A: we have CE, RoHS, UL, ATEX as well as ship-use DNV etc.
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