Specifications - Horiba Scientific LAQUAtwin B-771 Instruction Manual

8.2

Specifications

Model
Measurement principle
Minimum sample volume
Measurement
range
Display range
Range and
resolution (valid digits)
Calibration
Accuracy
Display
Operating temperature/
humidity
Power
Battery life
Main materials
Outer dimensions/
mass
Main functions
*1 When the measured value is out of the measurement range, the displayed
value blinks. It should be used only as a guide.
*2 Selectable between one-point and two-point calibrations.
The high conductivity standard solution (12.9 mS/cm) is sold separately.
*3 Repeatability in measurement of a standard solution after calibration using the
same standard solution.
(1) ±5 S/cm (0 S/cm to 199 S/cm), (2) ±0.05 mS/cm (0.20 mS/cm to 1.99
mS/cm), (3) ±0.5 mS/cm (2.0 mS/cm to 19.9 mS/cm), (4) ±5 mS/cm (20 mS/
cm to 199 mS/cm)
*4 IP67: no failure when immersed in water at a depth of 1 meter for 30 minutes.
But the product cannot be used underwater.
B-771
2 AC bipolar method
0.12 mL or more
Conductivity 0 mS/cm to 19.9 mS/cm, 0 S/m to 1.99 S/m
Salt 0% to 1.1%
TDS 0 ppm to 9900 ppm
0 mS/cm to 199 mS/cm (0 S/m to 19.9 S/m)
(1) 0 S/cm to 199 S/cm: 1 S/cm
(2) 0.20 mS/cm to 1.99 mS/cm: 0.01 mS/cm
(3) 2.0 mS/cm to 19.9 mS/cm: 0.1 mS/cm
(4) 20 mS/cm to 199 mS/cm: 1 mS/cm
Two-point
±2% full scale ±1 digit (for each range)
Custom (monochrome) digital LCD
5C to 40C,
85% or less in relative humidity (no condensation)
CR2032 batteries (2)
Approx. 400 hours in continuous use
ABS epoxy
164 mm × 29 mm × 20 mm (excluding projections)
Approx. 45 g (without batteries)
Temperature conversion (2%/C fixed), waterproof
reading locking, automatic power OFF
*2
22
*1
*3
*4
,