horiba LAQUAtwin-EC-11 Instruction Manual

Instruction Manual (Operation)
COMPACT WATER QUALITY METER
LAQUAtwin-EC-11, LAQUAtwin-EC-22,
LAQUAtwin-EC-33
Specifications
Model LAQUAtwin-EC- 11

Minimum sample volume 0.12 mL
Range and resolution (valid digits)
Conductivity
0 to 199 S/cm: 1 S/cm
200 to 1999 S/cm: 1 S/cm

2.00 to 19.99 mS/cm: 0.01 mS/cm
20.0 to 199.9 mS/cm: 0.1 mS/cm
TDS 0.0 to 99.9 ppm: 0.1 ppm
100 to 999 ppm: 1 ppm
1000 to 9990 ppm: 10 ppm

Calibration Up to 2 points
Up to 3 points
*1
Accuracy
2% full scale (for each range)

2% full scale (0 to 19.99 mS/cm)
5% full scale (20.0 to 199.9 mS/cm)
Temperature display 0 to 50.0C
Target Electrical conductivity
Measurement 2 electrode bipolar AC
principle Titanium coated with Platinum black
Display Custom (monochrome) digital LCD with
backlight
Operating 5 to 40C, 85% or less relative humidity
environment (no condensation)
Power CR2032 batteries (2)
Battery life Approx. 400 h continuous operation
164  29  20 mm (excluding projections),
Outer dimen-
sions/mass Approx. 45 g (excluding batteries)
Main function Temperature compensation (2%/C fixed),
*3
waterproof , auto stable/auto hold, auto-
matic power OFF
LAQUAtwin series (EC) Operation
*1 Accuracy is the closeness of agreement between
the measured value and actual value of the stan-
dard solution in the measurement of the same
standard solution as the one used for the calibra-
tion. Temperature during the calibration and mea-
surement is the same. The error of standard
solutions and rounding error (1 digit) are not
included.
*2 The life period if the meter is used in the backlight
off mode. If the backlight is used, battery life will
shorten.
22 33
*3 IP67: no failure when immersed in water at a
 
depth or 1 meter for 30 minutes.
Please note that the meter can not be used
underwater
 Items in package
 
Items
 
Sensor S070

Meter
Storage case
Batteries CR2032
 
1413 μS/cm
Standard solution
12.88 mS/cm
Pipette
 
Conditioning solution
 
Instruction manual (Operation)
Instruction manual (Before use)
 Consumable parts sold separately
Items Specifications
Sensor S070, COND
514-22, 1413 μS/cm
Standard
solution
514-23, 12.88 mS/cm
*2
Conditioning
514-20
solution
Part Names
2
1
4 5 8
3
7
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.
1
2. Confirm that the waterproofing gasket is
1
clean and undamaged.
1
3. Slide the sensor onto
1
the meter so that
1
catch "A" on the back
of the meter fits into
hole "a" on the sen-
sor tongue as shown.
Part No.
Note
3200459672
3999960110 Be careful not to twist the waterproof gasket.
3999960111
3999960114
1
 Detaching the sensor
1. Power OFF the meter.
1 Measurement cell
2. Lift the sensor tongue
2 Protection cover
tip and slide the sensor
3 Lithium batteries
a little away from the
4 MEAS switch
meter.
5 ON/OFF switch
3. Pull out the sensor all the way from the
6
meter.
6 CAL switch
7 Waterproof gasket
 Inserting/removing batteries
8 Strap eyelet
 Inserting the batteries
1. Power OFF the meter.
2. Slide both batteries into
the battery
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
gasket Note
 Before using the sensor for the first time or
after several days of disuse, perform electrode
conditioning.
A
a
 Perform calibration after electrode condition-
ing.
1. Place some drops of the conditioning solu-
tion into the measurement cell.
2. Wait 10 min 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.
case as
to use two
Battery
Battery clip
CODE: GZ0000472457
March, 2017