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MPM4710 Recording Transmitter
MPM4710 Recording Transmitter

·The max. 50,000 recording;
·Bus line RS485 protocol;
·Single 3.6V/2400mAh Lithium cell for power supply

Features

· 4mA~20mA DC 2-wire current output;

· The latest microprocessing technique; better accuracy and resolution for pressure and temperature signals; digital compensation for both linearity and temperature error of pressure sensor;

· Good data security due to nonvolatile memory units;

· Single 3.6V/2400mAh Lithium cell for power supply; low current ≤30uA for Standby Mode; long-term collection available;

· Full stainless steel housing; multi-track O-ring sealing; easy to change battery and read data;

· Complete recording to pressure, temperature and the happening time;

· Flexible recording time setting, the min. 1s, the max. 255 hours 59 minutes 59 seconds;

· The max. 50,000 recording;

· Bus line RS485 protocol; freely wake up transmitter to set and read pressure value, temperature value and recording;

· Factory setting restore available, could reduce cost when the user makes incorrect setting or maintenance;

· High stable design, use hardware watch-dog and multi-track sofeware inspection to reduce system halted;

· Protection class IP68, long-term submersible application available;

· High accuracy class at wider temperature range -30℃~80℃.


Introduction

MPM4710 Recording Transmitter is able to be widely used in petroleum, chemi-industry, power station, water conservancy, city flood control and city water supply and drainage, etc. It is supplied by battery, could work without manual control. The transmitter could record level or pressure change continuously. By setting proper data collection interval, the transmitter could record from several days to several years. Very low power consumption is another advantages, one AA baterry 3.6V/2400mAh could work many years continuously. MPM4710 has an absolute pressure sensor inside, to measure lower level, please be careful for atmosphere change. We suggest to install a barameter or another MPM4710 Recording Transmitter to record air pressure. And then calculate two pressure difference of two instruments by computer, that is the final level value; Please pay attention that get MPM4710 back from the measurement point, then remove end cap and read record through data interface.

Specification

Pressure range

0 MPa ~0.1 MPa…1.1MPa(Absolute)

Overpressure

2×pressure range

Power supply

Cylinder 3.6V/2400mAh Lithium cell

Output signal

RS485 digital

Environment temp.

-30℃~80℃

Error ①

-10℃~40℃ 0.10%FS(typ.) 0.2%FS(max.)

-30℃~80℃ 0.15%FS(typ.) 0.3%FS(max.)

Stability

<0.2%FS/year (typ.)

Resolution

0.01%FS

Temperature accuracy

0.1℃(-30℃~80℃)

Record interval

1s~255 hours 59 minutes 59 seconds

(1s~10 days 15 hours 59 minutes 59 seconds)

Record data quantity

Recording stops when the records are 50,000 (including date, time, temperature and pressure)

Static current

(no collection, no recording, no communication)<30uA

Battery life

Typ. (once per hour)about 7 years

Construction material

Housing: SS 316L O-ring: Viton

Protection class

IP68

Others

Weight: about 500 g Resolution: 100MΩ/50V

Shock: 20g 20Hz ~5000Hz Impact: 20g 11ms


Outline Construction: (Unit:mm)

outline dimension of mpm4710 recording transmitter



Electric Connetion:

Aviation plug electric connection:


Pin 3 connects to GND of circuit inside. Generally, it can only connect to RS485A and RS485B. If RS485 communication has big disturbing, please connect to GND.


Operation Software

By software, users could calibrate transmitter zero, check battery, set data collection interval, read record and get temperature data and so on.



Order Guide:

MPM4710

Recording Transmitter

 

 

Range

Pressure range: kPa/MPa

(0~X)MPa

0 MPa ~0.1 MPa…1.1MPa(absolute)

 

 

 

 

 

 

Code

Output signal

R4

RS485 interface

 

 

 

 

 

 

Code

Others

A

Absolute

 

 

 

 

 

 

 

MPM4710 (0~1)MPa R4 A the whole spec

Notes

The basic transmitter measurement is absolute, please be careful that not to connect to power and cable when transmitter is not working. Please pay attention, if the atmosphere has big influence for measurement, please select a Pressure Recording Instrument, and use both two instruments together.


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