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　In the lab, in the field or anywhere you need it

On top of using a double moulding injection process integrating polycarbonate resin and TPE to create an eco-friendly, shock & scratch resistant, non-slip body, several improvements and enhancements have been made to the latest HORIBA LAQUA handheld meters allowing sustained periods of operations in challenging outdoor conditions and making the 200 series a compact yet powerful versatile meter.

LAQUAact OM-71

LAQUAact OM-71 Meter: Click to enlarge
LAQUAact OM-71G-2: Click to enlarge

Overview

DO, Dissolved Oxygen 
Back light LCD Waterproof and dustproof (IP67 rated) PC PRT ID Shock and chemical resistant body case

Features

Functions

  • The built-in data memory (1000 items)
  • Connecting to a computer allows measurement data to be collected
  • Output to a GLP/GMP-compatible printer is possible
  • Temperature compensation, atmospheric pressure calibration, and salt concentration calibration functions
  • Oxygen concentration and saturated oxygen concentration measurement functions
  • Interval measurement function
  • Sample ID No. setting function
  • Clock function and auto power-off function
  • Usable with AAA alkaline batteries, Ni-MH batteries, or adapter
  • IP67-compliant waterproof and dustproof structure*

* IP67: Ensures a waterproof performance without failure when immersed 1m in water for about 30 minutes.

Meter Kits Available

OM-71G-2

  

The appearance of items in the picture are subject to change in each region.

Package Details:

  • OM-71 DO meter
  • 9551-20D Field dissolved oxygen electrode with 2m cable

 

OM-71-10

  

The appearance of items in the picture are subject to change in each region.

Package Details:

  • OM-71 DO meter
  • 9551-100D Field dissolved oxygen electrode with 10m cable

 

 

Manufactured by  

Specifications

MODEL

OM-71

Dissolved
Oxygen

Measuring principle

Membrane galvanic cell

Measuring range (Display range)

0.00～20.00 mg/L

Temperature compensation

0～40℃

Resolution

0.01 mg/L

Repeatability

±0.1 mg/L±1 digit

Air calibration (Basic)

〇

Standard solution calibration

〇

Salinity concentration correction(0～40PPT)

〇

Air pressure correction

〇

Saturated
Oxygen

Measuring principle

Membrane galvanic cell

Measuring range (Display range)

0.0～200.0%

Resolution

0.1%

Oxygen
concentration

Measuring principle

Membrane galvanic cell

Measuring range (Display range)

0.0～50.0%

Resolution

0.1%

Temperature

Measuring range (Display)

0.0℃～100.0℃（-30℃～130℃）　
※Flashing in the case of outside measurement range.

Resolution

0.1℃

Repeatability

±0.1℃±1digit

Calibration function

〇

Display

Custom LCD with backlight

Function

PC connectivity*1

〇

Printer connectivity（GLP/GMP）

〇

Temperature　compensation（Auto/manual)

〇

Auto Hold function

〇

Data memory number

1000

Interval memory

〇

ID input

〇

Clock function

〇

Auto power off

〇

Battery Level Indicator

〇

Dustproof and waterproof standard

IP67

Operating ambient temperature/ humidity

0℃ to 45℃ , 80% or less in relative humidity (no condensation)

Power

LR03/AAA alkaline batteries or AAA Ni-H rechargeable batteries × 2
AC adapter 100 V to 240 V 50/60 Hz (option)

Current consumption

Less than 2 mA

Battery life*2

Approx. 500 hours

Dimension

Approx. 67 (80) × 28 (42) × 170 mm (The figures in parentheses are maximum thicknesses.)

Weight (without batteries and electrode)

Approx. 270 g

*1 RS-232C cable(3014030151) and software is required. Software can be download by web registration. If you need to connect to the USB, the adapter(RS232C⇔ USB) commercially available is required. Please buy one that be suitable for the specifications of the PC (OS · USB Specification, etc.). ※ HORIBA will not guarantee the adapter operation.
*2 Battery life will be shorter when using optional accessories and backlight LCD is activated.

Brochures

LAQUAact Handheld Water Quality Meters D-70 / ES-70 / OM-70 Series

Electrodes & Accessories

Downloads

Dissolved oxygen meter OM-71

Quick Manual OM-71


The materials accessible from this website were current at the time of posting.
Please note that the material may differ from that provided with the product.

HORIBA Offices

Asia & Oceania

Europe, Middle East & Africa

Northampton

HORIBA UK Limited Northampton Office
work
Kyoto Close,Summerhouse Road,
Moulton Park
Northampton NN3 6FL UK
work +(44) 1604 542 600
work fax +(44) 1604 542 699

Americas

Irvine, California

HORIBA Instruments Incorporated Head Office
work
9755 Research Drive
Irvine California 92618 USA
work +1 800 446 7422
work fax +1 949 468 1790