Horiba Scientific LAQUAtwin-K-11 Instruction Manual

Instruction Manual (Operation)
COMPACT WATER QUALITY METER
LAQUAtwin-K-11

Specifications

Model LAQUAtwin-K-11
+
Target Potassium ion (K )
Measurement principle ISE method
Minimum sample volume More than 0.3 mL
Measure-
4 to 9900 [unit: ppm or mg/L]
ment range
2 to 5000 [unit: kg/10a]
Resolution Display range: Resolution
(default)
4 to 99: 1
100 to 990: 10
1000 to 9900: 100
[unit: ppm or mg/L]
Calibration Up to 2 points
Default: 150 ppm and 2000 ppm
*2
Accuracy ±10% of reading value
Waterproof IP67 (no failure when immersed in
water at a depth of 1 m for 30 min)
Display Custom (monochrome) digital LCD
with backlight
Operating Temperature: 5C to 40C
environment Humidity: 85% relative humidity or
less (no condensation)
Power CR2032 batteries (2)
Battery life Approx. 400 h continuous operation
*4
(backlight off mode)
Material ABS epoxy (main material)
Dimensions 164  29  20 mm (excluding projec-
tions)
Mass Approx. 50 g (excluding batteries)
+
LAQUAtwin series (K ) Operation
*1 0.05 mL or more if sampling sheet B (sold sepa-
rately) is used.
*2 The closeness of agreement between a mea-
sured value and an actual value of standard solu-
tion after two-point calibration using 150 ppm and
2000 ppm standard solutions.
 The standard solution used for the later cali-
bration was measured after two-point calibra-
tion at 150 ppm and 2000 ppm.
 The calibration and measurement are per-
formed at the same temperature.
 The error of standard solutions and rounding
error (1 digit) are not included.
*3 The meter cannot be used underwater.
*1
*4 When the backlight is used, battery life will
shorten.


Items in package

Items
Sensor S030
Meter
Storage case
Batteries CR2032
Standard solution 150 ppm
2000 ppm
Pipette
*3
Sampling Sheet B (5 sheet-pack)
Instruction manual (Operation)
Instruction manual (Before use)
 Consumable parts sold separately
Items Specifications
+
S030, K
Sensor
+
Standard Y031L, K 150 ppm
solution
+
Y031H, K 2000 ppm
Sampling Y046, 100 sheet-pack
sheet B
Part Names
2
1
7 10
6
4
3
5
9
Note
Press the switches 0.5 seconds or more unless
otherwise specified.
Quantity
1

Initial Setup

1
1 

Attaching/detaching the sensor

2  Attaching the sensor
1
1. Power OFF the meter.
2. Confirm that the waterproofing gasket is
1
clean and undamaged.
1
3. Slide the sensor
1
onto the meter so
1
that catch "A" on the
1 back of the meter fits
into hole "a" on the
sensor tongue
shown.
Part No.
Note
3200459868
Be careful not to twist the waterproof gasket.
3200457720
3200457719
3200053858
1
 Detaching the sensor
1. Power OFF the meter.
1 Flat sensor
2. Lift the sensor tongue
2 Light shield cover
tip and slide the sensor
3 Liquid junction
a little away from the
4 Response mem-
meter.
brane
3. Pull out the sensor all the way from the
8
5 Lithium batteries
meter.
6 MEAS switch


Inserting/removing batteries

7 ON/OFF switch
 Inserting the batteries
8 CAL switch
1. Power OFF the meter.
9 Waterproof gasket
2. Slide both batteries into
10 Strap eyelet
the
shown.
Be sure
CR2032 batteries, and put
them with the plus sides
(+) upwards.
 Removing the batteries
1. Power OFF the meter.
2. Use a ball-point pen or
other tool to pry the batter-
ies out from the clips as
shown.


Electrode conditioning

Waterproof Note
gasket
 Before using the sensor for the first time or
after several days of disuse, perform electrode
conditioning.
 Perform calibration after electrode condition-
A
as
a
ing.
1. Place some drops of 2000 ppm standard
solution to the flat sensor.
2. Wait a few hours before use.
There is no need to switch the meter ON.
3. Clean the flat sensor with running water.
 2017 HORIBA Advanced Techno Co., Ltd.
battery case as
to use two
Battery
Battery clip
CODE: GZ0000460287
March, 2017