TDS and EC Calibration Solutions
How to calibrate TDS-3, EC-3, AP-1 og AP-2:
Put the meter in the fluid. For TDS-3 and EC-3: with a mini-screwdriver you turn a small screw on the back of the meter until it shows 342ppm or 700µS. For AP-1 and AP-2: Hold the MODE button for 4 seconds until temp. changes to CAL. Press by the small triangles, until it shows 342ppm or 700µS. Hold the MODE button for 4 seconds until temperature is shown again. That's it.
For optimal performance, re-calibrate your meters periodically or if testing TDS or conductivity levels in wide or different ranges.
NaCl calibration solution, available in 342 ppm or 1000 ppm.
Comes in lightweight HDPE plastic bottles.
Sealed with a coated foam liner.
3 oz. bottles (88.7 ml)
342 NaCl = 362 as KCl ; 478 as "442" ; 700 µS
TDS Calibration Solution 342ppm, 88ml
- Brand: HM Digital
- CODE: TDS342
- Availability: 30