Projects
Wattage to Resistance & Amps Calculator
This tool helps technicians quickly calculate the resistance and current based on voltage and power.
Coffee Brew Calculator
Enter the water volume and choose the unit to calculate the required coffee amount.
Cheat Sheet: TDS and Conductivity Adjustments
TDS (Total Dissolved Solids) Reference
- Distilled/RO Water: 0-10 ppm (very low conductivity)
- Soft Tap Water: 30-100 ppm
- Hard Tap Water: 150-400 ppm
- Recommended for Probes: 80-150 ppm
Baking Soda (NaHCO₃) Guide
To raise TDS by approximately 100 ppm in a 20-liter tank:
- Add approximately 1/4 teaspoon of baking soda.
Quick Additive Chart
| TDS Increase (ppm) |
Amount of Baking Soda (per 20L) |
| 50 ppm |
~0.6 g |
| 100 ppm |
~1.2 g |
| 200 ppm |
~3 g |