Page 1
TH-4000 Turbidimeter Operation and Maintenance Manual The information contained in this manual was current at the time of printing. The most current versions of all Hydro Instruments manuals can be found on our website: www.hydroinstruments.com TH-4000 Rev. 4/29/2022 v2...
I. INTRODUCTION The Hydro Instruments TH-4000 turbidimeter uses a pre-scaled inline sensor that measures turbidity in water using a white LED as the excitation light source and by measuring the scattered light at a 90-degree angle with respect to the excitation beam. The fl uidic and optical arrangement of the sensor is designed to overcome many shortcomings associated with other inline turbidimeters.
A. Start Up and Installation 1. The TH-4000 will accept any single phase A/C power in the range of 110 to 240 VAC at 50 to 60 Hz. When connecting A/C power to the instrument, it is imperative that the A/C source be well grounded.
III. CONFIGURATION OF PARAMETERS Confi guration of Sensor Parameters & Calibration of Sensors Each TH-4000 Turbidimeter will be set up from the factory as per the ordering instructions. How- ever, settings and sensors can be changed using the following procedure.
FIGURE 2: TH-4000 All Screens Turb1 = 0.74 NTU HOLD HOLD HOLD Alarm Status Modbus Baud=19200 Screens shown with grey border are Screens shown with grey border are hidden screens, hidden screens, Normal Node= 1 Data=8/N/1 accessed by holding -...
IV. MAINTENANCE A. Sensor Maintenance The turbidity sensor is designed to be easily removed, inspected, and cleaned when required. It is recommended that the turbidity sensor be checked for fouling and cleaned on a monthly basis. Heavily contaminated water may require more frequent cleanings. Cleaner water sources with less contamination may not require cleaning for several months.
6. Damaged Circuit Board: The circuit boards can be damaged if high voltage is connected to the wrong terminals, by lightning, other power surges, or by corrosion. If you believe that the circuit board is damaged, then contact the factory and your local sales representative.
Comma, then click “Next”. vi. On the next pop up window “Text Import Wizard – Step 3 of 3” you can accept the “Column data format” setting of “General” and then click “Finish”. TABLE 1: TH-4000 Data Log File Example Date Time...
Need help?
Do you have a question about the TH-4000 and is the answer not in the manual?
Questions and answers