The Hanna pH and TDS continuous indicator HI-981404N features separate displays for continuous readout of both pH and Total Dissolved Solids (TDS). The meter uses a 12volt power source from the mains using a 12volt transformer which is included in the price of the instrument.
Supplied with both the pH electrode and the TDS probe the meter also has an earthing pin to ensure that readings are correct and not affected by a lack of earth within a plastic or other form of insulated tank environment.
The pH electrode is replaceable and the BNC connector is protected behind a waterproof sheath when connected to the meter. TDS readings are performed using the conversion factor of 0.7 to give direct readout in mg/L (ppm), thus removing the need to convert the readings.
For the full product specification please see the attached instruction manual.
The HI-981404N is supplied complete with:
HI-1286 pH electrode
Hi-7634 TDs probe
HI-1283 grounding bar
pH and TDS calibration solution sachets (20ml each)
screwdriver, 12VDC adapter and instructions.
EC/TDS Conversion Factor: 0.7 ppm = 1 µS/cm
Product Specification Summary
0.0 to 14.0 pH; 0 to 1990 ppm (mg/L)
0.1 pH; 10 ppm (mg/L)
Manual, 1 or 2 points (pH); manual, 1 point (TDS)
12 Vdc adapter (included)
160 x 110 x 35 mm
HI-7634 (TDS probe included)
HI-1286 (pH electrode included) and HI-1283 (matching pin included)