0.1~1.1MPa Water Level Data Logger RS485 Digital Output Signal
Description of Water Level Data Logger
Water Level Data Logger is a high–performance product developed by
our company. By using of the best low consumption integrated chip
and taking advantage of digital technology, PL315 is designed to
record water depth (pressure) over long term. It could be widely
used in petroleum. Chemi-industry, power station, water
conservancy, city flood control and city water supply etc.
PL315 is a battery powered instrument, and work without manual
control. By setting proper interval recording time, one class AA
battery 3.6/2400mAh is possible to support the PL315 working many
years.
Water Level Data Logger works with an absolute pressure sensor. If
the influence of air pressure fluctuations (e.g. at shallow fluid
or water depths) is going to be taken into consideration, it is
recommended that a second data logger PL315 is placed at the
surface, to record the barometric pressure. The correct level is
calculated via PC by subtracting the two measured values of the two
data loggers.
Sensor, circuit board and battery air assembled into the sealed
steel housing, for submersible application. For data read out,
PL315 must be got back from the measuring point. The O-ring sealed
end cap is then removed to the access to data port.
Feature of Water Level Data Logger
1. 5000 recordings could be recorded.
2. Read the pressure and the temperature value via RS485
communication
interface at any time.
3. Back to factory setup offers customer easy to restore factory
setup
when make incorrect operations and reduces the maintenance fees.
4.High stable, hardware watch-dog and muti-track software
inspection
could reduce the system halted.
5.High protection ,class IP68
6.High accuracy class at wider temperature range -30~80℃.
7. High measuring accuracy, resolution and robustness due to the
use of the latest Micro-processing technique.
8. High data security due to the use of a non-volatile memory.
Specification of Water Level Data Logger
| Pressure range | 0-0.1~1.1MPa (Absolute) |
| Environment Temp | -30~80°c |
| Overload pressure | 200%FS |
| Error | -10~+40°c 0.10%FS (typ.) 0.2%FS (max.) |
| -30~+80°c 0.15%FS (typ.) 0.3%FS (max.) |
| Stability | <0.2%FS/year (typ.) |
| Pressure Resolution | 0.01%FS |
| Temperature Resolution | 0.1℃ (-30℃~80℃) |
| Temp. Accuracy | ±1℃ |
| Recording interval | 1s~255 hours 59 minutes 59 seconds (1s~10 days 15 hours 59 minutes
59 seconds) |
| Record data quantity | 50000 recordings (including data, time, temperature and pressure) |
| Recording mode | Recording stops when the records are 5000 recordings. |
| Power supply | Cylinder 3.6V/2400mAh Lithium battery (model:AA) |
| Static Current | ≈20uA (no collection, no recording, no communication) |
| Collection and Recording Current | ≈1.5mA |
| Memory Eliminate Current | ≈30mA |
| Output Signal | RS485 digital |
| Battery Life | 7 years (typ.) (1 measurement/hour) |
| Material | Housing: Stainless steel 316L (DIN1.4435) |
| O-ring: Viton |
| Weight | ≈500g |
| Protection | IP68 |
| Insulation | 100mΩ / 50V |
| Vibration | 20g, 20 to 5000Hz |
| Shock | 20g, 11ms |
| Endurance | 1*10^7 pressure cycle, 0~100%FS, at temp.25℃ |
Dimension
Electric Connection
| Pin 1 | RS485 A |
| Pin 2 | RS485 B |
| Pin 3 | GND (connects to internal circuit) |
| Other pin is null |
Operating software
