HAM DepthSenseS

The HAM DepthSenseS measures the water level with a pressure sensor that sits near the bottom. Use it for tanks, wells and boreholes where an ultrasonic sensor above the water is not practical. The shop shows it as HAM DepthSense.

The serial number starts with e53:.

What it measures

Reading	Unit	Note
Level	m	Height of the water above the sensor
Level	% full	How full the container is. Needs the container setup
Volume	m³	Needs the container shape and dimensions
Volume rate	m³/h	How fast the container fills or empties
Full est.		Estimated time until the container is full
Empty est.		Estimated time until the container is empty
Level Velocity	m/min	How fast the level changes
Pressure	hPa	The pressure that the sensor measures
Gen. In., Gen. In. 2		Two general inputs. They show when you configure them

The device converts pressure to level with the Liquid density setting.

Typical uses

• Water tanks and reservoirs.
• Deep wells and boreholes.
• Irrigation tanks and rainwater storage.
• Industrial water tanks.

Installation

The device connects to WiFi 2.4 GHz. You set it up from the HAM app, as described in Connect a device to WiFi.

1. Lower the sensor into the water, near the bottom.
2. Fix the cable so that the sensor stays at the same height.
3. Measure the height of the sensor above the bottom. You need it for the container setup.
4. Put the device enclosure out of the water, in a dry place.

Caution

The sensor can stay in water (IP68). The device enclosure is not water resistant (IP20). Never put the enclosure inside the tank.

For general installation guidance see Sensor placement and wiring.

Settings

The settings are on the device page, in the Settings section. For the general procedure see Device settings.

Set up the container

1. Open the device page.
2. Open the Settings section.
3. On the Container row, tap Set up. The Container setup window opens.
4. In Shape, select the shape of the tank.
5. In Dimensions, type each dimension in metres.
6. In Sensor mounting offset, type the height of the sensor diaphragm above the bottom of the container, in metres.
7. Check the drawing. It shows the fill percentage and the Tank capacity.
8. Tap Save.

Shape	Dimensions
Horizontal Cylinder	diameter, length
Vertical Cylinder	diameter, height
Sphere	diameter
Box	length, width, height
Custom	area (m²), height

Liquid density

Liquid density (in Advanced) is the density of the liquid in g/cm³. The default is 1, for water. The permitted values are 0.2-3. The value is stored in the sensor, and the device uses it to convert pressure to level.

Note

If you measure a liquid that is not water, set the correct density. With a wrong density, the level always has the same percentage error.

Other settings

• Device Description: text that shows as a subheading in reports.
• Baudrate and Modbus Address (in Advanced): the connection to the sensor. Keep the defaults (9600 and 1).
• Allow LAN commands (in Advanced): other devices on your local network can control this device. Keep the setting off if you do not need it.
• Force IPv4 (in Advanced): the device uses only IPv4 connections.
• Do not keep track of data (in Advanced): the app keeps no reading history.

Recommended rules

The app has no ready-made rules for this device. Create at least these:

• An alert when Level (%) drops below a limit, for example 20%.
• An alert when Level (%) goes above a limit, for example 95%, for overflow.
• An alert when the device goes offline. See Offline alerts.

For the steps see Create a rule.

Troubleshooting

What you see	Possible cause	What to do
The level has a constant percentage error	Wrong Liquid density	Set the correct density
Percentage or volume has a constant offset	Wrong Sensor mounting offset or dimensions	Measure the sensor height again
No volume or percentage	The container is not set up	See Set up the container
The level changes for no reason	The sensor moves	Fix the cable

For general problems see Wrong or strange values and Device shows offline.

Specifications

Measuring method	Hydrostatic pressure (gauge)
Measuring range	0-10 m
Total error	±0.5% FS
Sensor operating temperature	-25 to 75 °C
Sensor material	Stainless steel SS316L
Sensor protection	IP68
Enclosure protection	IP20
Inputs	2 general inputs
Power	Micro-USB adapter (included) or 5-12 VDC via terminals
Connectivity	WiFi 802.11 b/g/n, 2.4 GHz

Available in the shop. To compare with measurement from above, see HAM SonicSense.