Horiba B-741/742/743 LAQUAtwin Compact Nitrate Meters

See More Horiba LAQUAtwin Compact Meters

The B-741 has been replaced by the Horiba LAQUAtwin NO3-11S Nitrate Ion Meter Soil Analysis Kit 3200689164

The B-742 has been replaced by the Horiba LAQUAtwin NO3-11S Compact Water Quality Conductivity Ion Meter 3200689164

The B-743 has been replaced by the Horiba LAQUAtwin NO3-11 Compact Water Quality Nitrate Ion Meter 3200689162

Autocalibration function recognizes standards and is user-selectable for either one or two-point calibration. Measurement range 62ppm - 6200ppm. For submersible and special small sample or solid sample applications.

Temperature compensation

Only compact meter for a quick measurement of nitrate ion using ion selective membrane.Flat sensor technology and 60 years of sensor engineering realizes a reliable and direct measurement of a drop of the sample from 0.3mL. Use sampling sheet (sold separately) to measure down to 0.05mL or more.Unique sensor mechanism realizes direct measurement of solid, viscous, powder samples. No need for a beaker to calibrate or measure. Just drop the standards and sample on the flat sensor, saves you time and minimize wasting your precious sample.This lightweight, pocket-sized meter is suitable for research and industrial applications in diverse fields.

Applications include:
Soil and sap testing for improved agriculture; food testing*

* Detection of ions in water only; electrolytes in oils cannot be measured. Ion measurement can be affected by non-target ions.

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Features
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Autocalibration function recognizes standards and is user-selectable for either one- or two-point calibrations.
Auto range change
Temperature compensation
IP67 waterproof
Auto hold
Automatic power off ?30 minutes)

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Specifications
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MODEL	B-741	B-742	B-743
Measurement principle	Ion electrode method
Minimum sample volume	0.3mL or more*1
Measurement range	NO3-:100 to 9900 ppm (mg/L) NO3--N:23 to 2200 ppm (mg/L)	NO3-:30 to 600 ppm (mg/L) NO3- -N:6.8 to 140 ppm (mg/L) :3.4 to 68Kg/ 10a *2	NO3-:62 to 6200 ppm (mg/L) (10-3 to 10-1mol/L) NO3- -N:14 to 1400 ppm (mg/L)
*Display range3**	0 to 9900 ppm (mg/L)	0 to 800 ppm (mg/L)	0 to 9900 ppm (mg/L)
Range and Resolution (Valid numbers)	?0 to 1.0ppm : 0.1ppm ?0 to 99ppm : 1ppm ?100 to 990ppm : 10ppm ?1000 to 9900ppm : 100ppm
Calibration	Two-point*4
Accuracy	±10% of reading value.*5
Functions	Auto range change?Temperature compensation?Waterproof*6?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
Accessories included	Standard solution for crops (300 ppm & 5000 ppm) (14mL) Kit for crops*7	Standard solution for soil ( 30 ppm?300 ppm ) (14mL) Kit for soil*8	Standard solution (150ppm& 2000ppm) (14mL)?

*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 With soil/water sampling ratio of 1:5.
*3 When the measured value is out of the measurement range, the displayed value blinks. It should be used only as a guide.
*4 Selectable between one-point and two-point calibrations.
*5 Repeatability in measurement of a standard solution after calibration using the same standard solution.
*6 IP67?no failure when immersed in water at a depth of 1 meter for 30 minutes. But the product can not be used underwater.
*7 Kit for crops?4 Pipettes , Cleaning solution bottle?250mL) , Crop sample press , 3 Medical cups , Quick manual , Carrying case
*8 Kit for soil?4 Pipettes?Cleaning solution bottle?250mL) , 3 Extraction bottles?100?L? , 2 sets of spoon for soil sampling , Tweezers , Sampling sheetB , 2 Sampling sheet

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. Please see the Interfering ion influence ? pH range for further details.

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