Waterproof ultrasonic level gauge

Waterproof ultrasonic level gaugeTechnical Specifications

1Measurement range:5mThe10mThe15mThe20mThe25m(Selected based on the measured range)

2Blind District:0.25m～0.6m

3Distance measurement accuracy:0.25%～0.5%(Standard conditions)

4Distance measurement resolution:1mm

5, pressure 力：4Below one atmosphere pressure

6Instrument display: built-inLCDDisplay liquid level or spatial distance

7Analog output:4～20mA

8Digital output:RS485 / ModbusProtocol or customized protocol

9Power supply voltage:DC12V / DC24V / AC220VBuilt in lightning protection device

10Environmental temperature: -20℃～ ＋60℃(Please specify for high-temperature customization)

11Protection level:IP65 / IP68

Waterproof ultrasonic level gaugeOutline dimensions and installation diagram

1Instrument dimensions and installation principle

The probe size may vary depending on the instrument range, and any differences will be notified in advance!

2Instrument installation method

In an open environment, bracket installation is generally used, and the instrument is fixed with its own flange or nut. Cut a slightly larger diameter than the probe at the installation position of the pool or tank（60mm）Insert the instrument into the circular hole and tighten the flange or nut from bottom to top. Installation must ensure that the probe surface of the instrument is level with the measured liquid level.

Parameter Settings

Ⅰ Liquid level calibration（P01）(Note: The instrument panel has now hidden this menu. This function is provided byP04Menu Implementation

After the instrument is installed and powered on, the liquid level value will be displayed on the LCD, but this data often does not match the actual liquid level, so liquid level calibration is required. as long asP04Once the menu is set, the liquid level calibration will be automatically performed(Liquid level valueH)And distance calibration(spacing valueL).

The automatic calibration steps for liquid level calibration are as follows:SETKey, enter password; press againOKPress the key to enter the parameter settings menu and flip toP04Menu,OKKey to proceedP04Calibration of probe installation height; use▶key(shift)And ▲ key(Number change)Change the number to the actual height value(as2.100), pressOKKey confirmation; Press while the numbers are not flashingSETPress the key to exit the menu, and the first line will be displayed“H”For the current liquid level value, it indicates that the instrument probe installation height calibration is completed, and at the same time, the liquid level calibration is completed(Liquid level valueH)And distance calibration(spacing valueL)Also automatically calibrated.

Ⅱ full scale20mACorresponding value setting(P02)

Press when the instrument is working normallySETEnter the parameter settings menu with the key, press the ▲ key to selectP02The menu, the second line of numbers is20mACorresponding liquid level, pressOKSet the key.

Ⅲ Display mode settings（P03）

P03The menu can change the display mode, there are3There are various display modes to choose from:

00 Display liquid level value(H)And temperature values(F)； 01 Display the distance value(L)And temperature values(F)； 02 Display liquid level value(H)And the distance value(L).

Press the ▲ key to select the desired mode and then pressOKConfirm with the key.

Ⅳ Probe installation height setting and automatic liquid level calibration(P04)

P04The menu is for setting the installation height of the probe, which must be a true and valid value. After setting the effective installation height value, it will be automatically calibratedHandLvalue(namely:Liquid level value and spatial distance).

Ⅴ Reaction speed setting（P05）

P05The menu can change the instrument response speed. The faster the liquid level changes, the faster the corresponding instrument response speed is required. This instrument has4Medium mode available for selection:00 The fastest response speed;01 Faster response speed;02 Medium speed response speed;03 Slow response speed.

Press the ▲ key to select the desired mode and then pressOKConfirm with the key.

[Attention]The faster the response speed of the instrument, the greater the fluctuation of the displayed data; On the contrary, the slower the response speed of the instrument, the more stable the displayed data. If the liquid level does not change very quickly, there is generally no need to modify the factory settings.

Ⅵ Blind spot setting（P06）

The blind spot of the instrument can be changed to adapt to some complex working conditions on site. For example, it is possible to avoid the influence of nearby protrusions on the instrument. In general, there is no need to modify the factory settings.

Ⅶ IDNumber setting（P07）(Note: Only the four wire system has this function!)

When used for communication, especially for multi machine communication, the default is01.

Ⅷ Relay output setting (note: only four wire system has this function!)

The instrument is equipped with two relays, namelyH(upper limit)，L(lower limit). PressSETKey, password interface appears:“0000”Press the [▲] key to change one digit of di to3, press【OK】Press the key to enter the relay parameter setting menu interface.

Each set of relays has two parameters corresponding to it, namely the control value and the hysteresis value.H(upper limit)Relay is determined by menu parametersH(Control value) anddH(Return difference value) control;L(lower limit)Relay is determined by menu parametersL(Control value) anddL(Return difference value) control.

For high point relays（H）When the measured value changes from small to large and exceeds the control value（H）When the relay is closed; When the measured value is less than the difference between the control value and the return value（H-dH）The relay is disconnected.

For low point relays（L）When the measured value changes from large to small and is less than the control value（L）When the relay is closed; When the measured value is greater than the control value plus the difference value（L+dL）The relay is disconnected.

Ⅸ Relay (alarm type)

pressSETThe password interface appears on the key“0000”Press the [▲] key to change one digit of di to4, namely:“4000”, press【OK】The key can enter the relay settings,PH:01For high-level alarm,PL：02For low-level alarms, set the alarm type according to the requirements (for example, if two high-level alarms need to be set as)PH:01ThePL:01Low level alarm is set toPH:02ThePL:02This function can be achieved.