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TH-4000 Turbidimeter

Operation and Maintenance Manual

TH-4000  Rev. 4/29/2022 v2

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

Summary of Contents for TH-4000

Page 1: ...nd Maintenance Manual TH 4000 Rev 4 29 2022 v2 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 ...

Page 2: ... A Entering Setup 5 B Configuring Each Channel 5 IV Maintenance A Sensor Maintenance Precaution 7 B Sensor Cleaning 7 V Troubleshooting A Installation Check 7 B Symptoms Likely Causes and Suggested Responses 7 VI Optional Data Logger 8 Figures 1 Operation Mode Screens 5 2 TH 4000 All Screens 6 3 TH 4000 Controller Electronics 9 4 TH 4000 Circuit Board MB124 10 Drawings TH 4000 Exploded View and Bi...

Page 3: ...ith a compression fitting designed to ensure correct positioning of the Series sensor in the water stream The sensor has a short channel that can be easily cleaned and calibrated Specifications Specifications TSH 10 TSH 100 TSH 1K TSH 10K Turbidity Range 0 10 NTU 0 100 NTU 0 1 000 NTU 0 10 000 NTU Resolution 0 05 NTU 0 10 NTU 1 00 NTU 10 0 NTU Accuracy 2 NTU Method Nephelometric with white LED and...

Page 4: ... 7 LED Indicators The red alarm indicator LED on the front panel will illuminate as long as an alarm condition is present B Alarms and Output Signals 1 Acknowledgement of Alarms If an alarm condition occurs the alarm red LED will illuminate and the relay will be activated To acknowledge an alarm and thereby de activate the relay contact output press the key NOTE Even after acknowledging the alarm ...

Page 5: ...anged using the following procedure A Entering Setup All parameters are set in the password protected setup section 1 Press the key until the password screen is reached 2 Use the and keys to set the password The password is 40 3 Press the key B Configuring Each Channel See Figure 2 The selected channel will flash Move between the channels with the and keys When the desired channel is flashing pres...

Page 6: ...Filter 30 secs Turb 2 High Alarm 250 NTU Turb 2 Avg Filter 30 secs HOLD HOLD HOLD Modbus Baud 19200 Node 1 Data 8 N 1 Modbus Baud 19200 Node 1 Data 8 N 1 Modbus Baud 19200 Node 1 Data 8 N 1 2400 4800 9600 19200 38400 57600 115200 250000 8 N 1 8 N 2 8 E 1 8 O 1 HOLD HOLD HOLD Turb 1 Zero Cal Skip Hold Begin Turb 1 Zero Cal Skip Hold Begin Turb 1 Span Cal Skip Hold Begin Turb 1 Zero Cal 0 00 NTU Tur...

Page 7: ...ical sensor channel V TROUBLESHOOTING A Installation Check Review the following points first Sensor Installation Check that the sensor head and flow cell are clean Check that the sensor is properly installed in the flow cell and that water is flowing B Symptoms Likely Causes and Suggested Responses 1 Filter Time If the displayed reading is not stable then the filter time can be increased to elimin...

Page 8: ...e MB220 board as shown on Figure 3 2 Operation To enable enter the configuration menu on the monitor and select the option DL The first menu option that appears will be the On Off menu The menus which follow allow for adjustment of the data logger frequency and for changes to the clock date and time See figure 2 a Frequency The frequency is the time interval between data recordings The fre quency i...

Page 9: ...der to eliminate the 3 line file header you can select 4 here to start the data import on row 4 of the file 3 Then click Next v On the next pop up window Text Import Wizard Step 2 of 3 you need to select the type of delimiter being used in the data file The data entries in these files are delimited by commas and so you must select Comma After selecting Comma and only Comma then click Next vi On th...

Page 10: ... For 120VAC or 240VAC Power Cable Connect at Terminal Block Ribbon Cable from MB220 Power Switch AC Power Terminal Block Cable to Turbidity Probe Micro SDHC Card Slot Ribbon Cable from Membrane Switch MB220 Display Board MJ500 Real Time Clock Modbus Terminals V A B V AC Power Inlet Power Supply Board 24VDC Power Output ...

Page 11: ...Y B OARD MB124 V V AI2 V AI1 V V AO1 V AO2 CO1 NO1 Relay 1 NC1 Normally Closed CO1 Common NO1 Normally Open NC1 CO2 NO2 Relay 2 NC2 Normally Closed CO2 Common NO2 Normally Open NC2 Analog Output 1 2 AO1 V AO2 V Turbidity Sensor White AI1 Red V Green Black V FIGURE 4 TH 4000 Circuit Board MB124 ...

Page 12: ...antity No 1 Probe Nut 1 TFC PN 1 2 Turbidity Sensor 1 See Table 3 O Ring 1 TFC BOD OR 4 Flow Tee Body 1 TFC BOD 1 5 O Ring 2 TFC UE OR 6 Flow Tee Union End 2 TFC UE 7 Flow Tee Union Nut 2 TFC UN 8 Tubing Connector 2 10 6 4 Turbidity Sensor No Range TSH 10 0 10 NTU TSH 100 0 100 NTU TSH 1K 0 1 000 NTU TSH 10K 0 10 000 NTU ...

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