
LAQUA DS-70 Series
Overview
DS-71:
DS-72:

Features
LAQUA DS-70 series measures Conductivity, Resistivity, Salinity, TDS and Temperature simultaneously and the Model DS-72 complies with industrial pharmacopoeias standard (JIS, USP, EP, JP and CP).
The meters’ auto diagnostic function allows the user to make sure that the instruments will always give high performance and reliable measurements. Fully GLP/GMP compliant, the LAQUA can be connected to an external printer. To ensure traceability all results are recorded together with sample name, user ID and calibration information.
We offer a comprehensive range of conductivity electrodes adapted to all type of application and sample. Recognised for their stability and longevity, HORIBA’s electrodes provide accurate measurement in all conditions.
Click here to see our conductivity electrodes
LAQUA’s large capacitance touch screen panel:
- Display easy to understand value and functions menus
- Switch between digital real time graphs or analogue displays during measurement with just the flick of a finger
- Full on-screen support on the meter via an electronic user guide with colour pictures that can be called up at any time, featuring problem solver guide for calibration or measurement
Functions
- Easy navigation for main unit and electrode inspections (DS-72 only)
- Full support for various country pharmaceutical pure water guidelines (USP/EP/JP/CP) (DS-72 only)
- Customizable auto-hold function for calibration and measurement (DS-72 only)
- Simultaneous connection to a GLP/GMP compatible and PC
- Digital memory - maximum 2,000 sets of measurement data can be recorded (DS-71 - 999 sets)
- USB-PC communication (DS-71/72) and USB memory (DS-72 only)
- Multi-language support (Japanese, English, Chinese, Korean) (DS-72 only)
- FDA 21 CFR Part11 (Please ask for quotation)
Meter Kits Available
DS-71A-S
The appearance of items in the picture are subject to change in each region.
Package Details:
- DS-71 COND/RES/SAL/TDS Custom LCD Screen Meter
- 3552-10D glass conductivity electrode
- 503-S - Conductivity 84 uS, 1413 uS, 12.88 mS, 111.8 mS standard solutions (250ml each)
- Electrode stand
DS-72A-S
The appearance of items in the picture are subject to change in each region.
Package Details:
- DS-72 COND/RES/SAL/TDS colour Touch Screen Meter
- 3552-10D glass conductivity electrode
- 503-S - Conductivity 84 uS, 1413 uS, 12.88 mS, 111.8 mS standard solutions (250ml each)
- Electrode stand
Manufactured by HORIBA Advanced Techno
Specifications
DS-71 | DS-72 | ||
|---|---|---|---|
Conductivity | Measurement method | 2 AC bipolar method | |
Measurement range | Cell constant 100 m-1:0.000 mS/m~19.99 S/m | ||
Resolution | 0.05% of full scale | ||
Repeatability | ±0.5% ±1 digit | ||
Change unit | ○ | ○ | |
Distilled water temperature conversion | ○ | ○ | |
Periodical check | × | ○ | |
P/EP/USP/CP Pharmaceutical water aplication | × | ○ | |
Salinity | Measurement method | Conversion from conductivity value | |
Measurement range | 0.00~80.00 PPT(0.000%~8.000%) | ||
Resolution | 0.01 PPT(0.001%) | ||
Salt concentration calibration | ○ | ○ | |
Resistivity | Measurement method | Conversion from conductivity value | |
Measurement range | Cell constant 100 m-1:0.00 Ω・m~199.9 kΩ・m | ||
Resolution | 0.05% F.S. | ||
Repeatability | ±0.5%F.S.±1 digit | ||
TDS | Measurement method | Conversion from conductivity value | |
Measurement range | 0.01 mg/L ~100 g/L | 0.01 mg/L ~1000 g/L | |
Resolution | 0.01 mg/L | ||
Temperature | Measurement range | 0.0~100.0℃(-30.0~130.0℃) | |
Resolution | 0.1℃ | ||
Repeatability | ±0.1℃±1 digit | ||
Input/output | Input(CH) | 1 | 1 |
USB peripherals (Communication with PC)*1 | ○ | ○ | |
USB host(USB memory) | × | ○ | |
RS-232C(Printer/PC) | ○ | ○ | |
Analog out put | × | ○ | |
Data | Memory number | 999 | 2,000 |
Interval memory | ○ | ○ | |
ID input | ○ | ○ | |
Data search | × | ○ | |
Display | Display | Custom LCD | Color graphic LCD with capacitive Touch Panel |
Multilanguage display | × | Japanese/English | |
Function | Navigation function | × | ○ |
User gide | × | ○ | |
Graf display | × | ○ | |
Printer connectivity(GLP/GMP) | ○ | ○ | |
Custom printing function | × | ○ | |
Temperature compensation(Auto/manual) | ○ | ○ | |
AutoHold function | ○ | ○ | |
AutoHold setting | × | ○ | |
Register operator | × | ○ | |
Security(pass word) | ○ | ○ | |
Version up function | ○ | ○ | |
Ambient temperature | 0 ℃ ~ 45℃ | ||
Power | AC adaptor 100 ~ 240 V 50/60 Hz | ||
Dimensions | 170(W)×174(D)×73(H)mm(Excluding electrode stand and AC adaptor) | ||
Power consumption | Approx. 0.7 VA | Approx. 9.8 VA | |
Mass of main unit | Approx .500 g | Approx. 700 g | |
*1 USB cable sold separately. Software can be download by web registration.
Downloads
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Accessories
Model No | Description | Item |
|---|---|---|
503-S | Conductivity Standard Solution Kit 250ml each
|
|
500-21 | 84 uS/cm Conductivity Solution at 25°C 500ml | |
500-22 | 1413 uS/cm Conductivity Solution at 25°C 500ml | |
500-23 | 12.88 mS/cm Conductivity Solution at 25°C 500ml | |
500-24 | 111.8 mS/cm Conductivity Solution at 25°C 500ml | |









