The sludge concentration meter consists of a transmitter and a sensor. The sensor can be easily installed in tanks, drain pipes, pressure pipelines, or natural water bodies. The sludge concentration meter can automatically compensate for interference caused by pollution. The sensor has an air cleaning function, which can automatically clean itself at preset times, greatly reducing the workload of instrument maintenance.
Sludge Concentration Meter Installation Instructions
To ensure the safety of installers and the proper functioning of the sludge concentration meter, please install it in the following order:
1. Mounting brackets for the instrument box and sensors;
2. Install the transmitter into the instrument box and secure it;
3. Install the sensor;
4. Electrical connections.
Installation of sludge concentration meter transmitter
1. When selecting the installation location for the transmitter, the following principles should be followed:
Avoid exposing the transmitter to direct sunlight;
Avoid causing excessive vibration in the transmitter;
If possible, the transmitter should be installed at a position slightly above the operator's eye level. This will allow the operator to comfortably view the front panel and perform control operations. Sufficient space should be provided for opening and maintaining the transmitter housing. There are three holes on the back of the transmitter, with the top hole for suspension and the bottom two holes for bolt fixing.
2. Installation of sludge concentration meter sensor
To ensure accurate measurements, the following standards must be followed when selecting sensor installation locations:
The sensor should be installed in an appropriate location within the process area to ensure representative measurement results. The installation location should facilitate sampling operations, and the maximum recommended distance between the sensor and the sampling point is 1.5m. Incorrect sampling is a common cause of erroneous measurement data.
The sensor should be installed in an easily accessible location to facilitate regular cleaning and maintenance.
The sensor should be avoided in locations with a high concentration of air bubbles, as these bubbles can interfere with the signal. In some applications, however, bubble formation is unavoidable, such as when measuring centrifugal liquids or filtrates. In these cases, the sensor should be installed within a degassing device.
The sensor should be installed in a location where the process mixes well and there is no downtime; this is usually also where the sampling point is located.
The sensor probe should be facing away from the flow direction of the process medium.
There are two ways to install the sensor: immersion installation and insertion installation.
3. Immersion installation
Submersible installation refers to the installation method where the sensor is immersed in a pool or tank via a mounting bracket. It is suitable for applications such as aeration tanks, sedimentation tanks, thickeners, and return channels.
When installing in an immersion configuration, the sensor must be mounted on a mounting bracket; it must not be suspended in the water by the sensor cable. The sensor should be submerged to a depth of at least 30 cm below the water surface, or to the depth typically reached during sampling, and direct sunlight should be avoided.
