Calcium Meter

Measurement principle

Ion electrode method

Minimum sample volume

0.05 mL*1, 0.3 mL or more

Measurement range

40 to 4000 ppm (mg/L) (10^-3to 10^-1mol/L)

Display range*2

0 to 9900 ppm (mg/L)

Range and Resolution

1) 0 to 1.0 ppm : 0.1 ppm
2) 0 to 99 ppm : 1 ppm
3) 100 to 990 ppm : 10 ppm
4) 1000 to 9900 ppm : 100 ppm

Calibration

Two-point^*3

Accuracy*4

+20% of reading value

Functions

Auto range change,  Temperature compensation
IP67 Water/Dust proof*5, Auto hold
Automatic power off (30 minutes)

Display

Custom (monochrome) digital LCD

Operating temperature/ humidity

5 to 40^oC, 85% or less in
relative humidity (no condensation)

Power

CR2032 batteries (x2)

Battery life

Approx. 400 hours in continuous use

Main Material

ABS epoxy

Dimensions /Mass

164 mm x 29 mm
20 mm (excluding projections) / Approx.
50 g (meter only, without batteries)

Interfering ion influence Selectivity coefficient and pH range

Na⁺, K⁺, Mg²⁺= 1x10^-3/ Fe²⁺, Zn²⁺= 1 /
Fe³⁺= 10 / Cu²⁺= 1 x 10-2/
pH range: pH 4~12 at 10^-3mol/L Ca²⁺