Free Report

Sign up today and receive a free report "Protein for Profit"

Enter the text below. Can't read it? Click the text to change it.

Enter the text above.

Can't read it? Click the text to change it.
+  Sign me up!

Food & Lab

Water Quality Meters

Sodium


Specifications

MODEL

B-722

Measurement principle

Ion electrode method

Minimum 
sample volume

0.3mL or more*1

Measurement range

23 to 2300 ppm(mg/L) (10-3 to 10-1 mol/L)

Display range

0 to 9900ppm(mg/L)*2

Range and Resolution
(Valid numbers)

①0 to 1.0ppm : 0.1ppm
②0 to 99ppm : 1ppm
③100 to 990ppm : 10ppm
④1000 to 9900ppm : 100ppm

Calibration

Two-point*3

Accuracy

±10% of reading value.*4

Functions

Auto range change・Temperature compensation・Waterproof*5・Reading locking ・Automatic power off (30 minutes)

Display

Custom (monochrome) Digital LCD

Operating
temperature/humidity

5 to 40˚C, 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

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

Accessories included

2 CR2032 batteries/1 Pipette/Instruction manual/Quick manual/Storage case/Standard solution
(150ppm&2000ppm)(14mL)/5 pieces of Sampling sheetB

*1 Smaller amount(0.05mL or more) can be measured with the sampling sheet B.  (Please close the light shield cover. If a sample that contain particulate, please use ”Sampling sheet holder” (sold separately))
*2 When the measured value is out of the measurement range, the displayed value blinks. It should be used only as a guide.
*3 Selectable between one-point and two-point calibrations. 
*4 Repeatability in measurement of a standard solution after calibration using the same standard solution.
*5 IP67:no failure when immersed in water at a depth of 1 meter for 30 minutes. But the product can not be used underwater.

<Attention>The ion electrode may be subject to interference from other ionic species. The selectivity coefficient reflects the affinity between each ionic species and the electrode, and is used to correct for the influence of competing ions.