The MPM4710 recording transmitter is widely used in industries such as petroleum, chemical, power, water conservancy, urban flood control, and domestic water supply. It has the advantages of battery power supply and unmanned continuous operation. It can continuously record changes in water level or pressure, and by setting the collection interval, it can record a period of several days to several years. Ultra low power consumption is its biggest feature, and a 3.6V/2400mAh AA battery can work continuously for several years. The MPM4710 is equipped with an absolute pressure sensor. When measuring shallow water levels, the influence of atmospheric pressure changes should be considered. It is recommended to install an MPM4710 Baro (atmospheric pressure gauge) on the water surface to record the atmospheric pressure, and then calculate the pressure difference between the two collectors' measured values by the computer, which is the water level value. When reading data, the MPM4710 transmitter must be retrieved from the measurement point, and then the tail cap should be removed to read the record through the data interface.
Adopting the latest microprocessor technology, the pressure and temperature signals of the sensor have higher accuracy and resolution. The linear and temperature errors of the pressure sensor have been fully calculatedWord based compensation.
The use of non-volatile memory ensures the security of data.
Powered by a single 3.6V/2400mAh lithium battery, with a standby current of less than 30uA, supporting long-term data collection.
All stainless steel shell, multiple "O" - shaped sealing rings, convenient for battery replacement and data reading.
Complete recording of pressure, temperature, and the date and time of occurrence.
Flexible recording interval time settings, with a minimum of 1 second and a maximum of 255 hours, 59 minutes, and 59 seconds.
Record up to 50000 complete records.
The bus type RS485 protocol allows the transmitter to be awakened at any time through communication for setting, reading pressure and temperature values, and recording operations.
Equipped with factory recovery function, it can be restored through software in case of user settings errors, reducing maintenance costs.
High reliability design, using hardware watchdog and software multiple verification methods to reduce system crashes.
• Protection level IP68, suitable for long-term underwater use.
High precision level within a wide temperature range of -30 ℃ to 80 ℃.
|
pressure range |
0-0.1... 1.1MPa (absolute pressure) |
|
permitted Overload |
2 x pressure range |
|
power supply range |
Cylindrical 3.6V/2400mAh lithium battery |
|
signal output |
RS485 digital |
|
ambient temperature |
-30℃~80℃ |
|
Error band ① |
-10 ℃~40 ℃ 0.10% FS (typical) 0.2% FS (maximum) -30 ℃~80 ℃ 0.15% FS (typical) 0.3% FS (maximum) |
|
Stability error |
<0.2% FS/year (typical) |
|
pressure resolution |
0.01%FS |
|
Temperature resolution |
0.1℃(-30℃~80℃) |
|
temperature accuracy |
±1℃ |
|
Record cycle |
1 second to 255 hours 59 minutes 59 seconds (1 second to 10 days 15 hours 59 minutes 59 seconds) |
|
Record data volume |
Stop recording when 50000 records are reached (including date, time, temperature, pressure) |
|
quiescent current |
(No collection, no recording, no communication)<30uA |
|
Battery usage time |
Typical (collected once per hour) takes about 7 years |
|
structural material |
Shell: Stainless steel 316L O-ring: Fluororubber |
|
Protection level |
IP68 |
|
Other parameters |
Weight: Approximately 500 grams Insulation: 100M Ω/50V Vibration: 20g 20-5000Hz Impact: 20g 11ms |
① Error band calculation: the absolute value of the maximum error within the working temperature and pressure range.
Selection Tips:
The measuring reference of the transmitter is the absolute pressure reference, and no power supply or cable connection is required during operation. Please note that if the measurement is greatly affected by atmospheric pressure, please purchase an atmospheric pressure recorder and have both recorders work together during operation.
