HydroLevelControl

Description

HydroLevelControl is a bundle of hardware and software designed to measure, present and control the level of a fluids. Measurement is based on the hydrostatic pressure provided by the fluid above the pressure sensor. Measured pressure value is converted to requested data format, according to inserted data, like fluid density, reservoir surface, etc. The measured value can be used to activate visual alarm (blinking LCD display), sound alarm and two relays. All this can be configured independently.

Take a care that this device can be used only on atmospheric pressure. Installation in over or under pressured environment can permanently damage the sensor and the device!

Background

The device have a pressure sensor, actually a pressure transducer, that is powered with 5 VDC. Dependently of the pressure, it produce a different voltage on output that is measured and converted to a pressure. Based on the fluid density, is possible to calculate the height of the fluid above the sensor. With the known height and the reservoir surface, can be calculated the volume and the mass of the fluid.

Specification

Specification table

Parameter	Value
Hardware
Power	220 VAC or 5 VDC over USB
Sensor type	Pressure transducer, 5 VDC
Sensor range	5 - 15 psi
Sensor offset	0.5 VDC (at 0 pressure) to 4.5 VDC (at maximal pressure)
Inlet size	1/8”-27 NPT
LCD	2.9" with blue background light
Relay	2 independent relays, maximal load 2A at 220VAC
Software
Operation system	Windows 8 and Windows 10
Communication	Serial over USB, TTL on device
Software functions	Configuration and measurement

Hardware

The hardware information.

Software

HydroLevelControl software is a program designed to read a measured data an to configure the hardware. It communicates with a USB to Serial TTL, where the TTL is on the hardware side. The software can be downloaded from this page for free.