Installation Instructions for Sludge Concentration Meter

The sludge concentration meter consists of a transmitter and a sensor. The sensor can be easily installed in a pool, drain pipe, pressure pipe or natural water body. The sludge concentration meter can automatically compensate for interference caused by pollution. The sensor has an air cleaning function and can automatically clean according to the pre-set time, thereby greatly reducing the workload of instrument maintenance.

Sludge Concentration Meter Installation Instructions

To ensure the safety of the installers and the normal operation of the sludge concentration meter, please install it in the following order:

1. Install the bracket of the instrument box and sensor;

2. Install the transmitter into the instrument box and secure it;

3. Install the sensor;

4. Electrical connection.

Installation of sludge concentration meter transmitter

1. When choosing the installation location of the transmitter, the following principles need to be followed:

Avoid direct sunlight on the transmitter;

Avoid excessive vibration of the transmitter;

If circumstances permit, the transmitter should be installed slightly above the operator's eye level, which will allow the operator to browse the front panel and perform control operations very comfortably; leave enough space for opening and maintenance of the transmitter case. There are three holes on the back of the transmitter, the upper hole is used for hanging, and the lower two holes are used for bolt fixing.

2. Installation of sludge concentration meter sensor

To ensure accurate measurement, the following standards need to be followed when selecting the sensor installation location:                                                                                         

The sensor should be installed at the appropriate location of the process to ensure representative measurement results. The installation location should be convenient for the operator to perform sampling operations. The recommended maximum distance between the sensor and the sampling point is no more than 1.5 m. Incorrect sampling operation is a common cause of incorrect measurement data;

The sensor should be installed in an easily accessible location to facilitate regular cleaning and maintenance of the sensor;

Avoid installing the sensor in a location with many bubbles, as bubbles will generate interference signals. In some application conditions, the generation of bubbles is difficult to avoid, such as in the application of measuring centrifuge liquid or filtrate, in these cases the sensor should be installed in the degassing device;

The sensor should be installed where the process is well mixed and where no downtime occurs, which is usually where the sampling point is located;

The sensor probe should face away from the process medium flow direction.

There are two ways to install the sensor: immersion installation and insertion installation.

3. Immersed installation

Immersion installation refers to the installation method of immersing the sensor in a pool or tank through the mounting bracket. It is suitable for aeration tanks, sedimentation tanks, concentration tanks, return channels and other occasions.

When installing in an immersed manner, the sensor must be installed on the mounting bracket, and the sensor cable cannot be used to hang the sensor in the water. The sensor should be immersed to a depth of not less than 30 cm below the water surface, or to the depth usually reached during sampling, and avoid direct sunlight.