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- Enabling the intravenous fluid production in the space

Portable pH/ORP/Conductivity/Resistivity/Salinity/TDS meter D-74

Overview

pH mV(ORP) Conductivity 
Salinity Resistivity TDS
Back light LCD 2CH 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.
  • Automatic calibration and calibration interval alarm function
  • Usable with both 5-point calibration and USA/NIST standard solutions.
  • Electrical resistivity/total dissolved solids/salt content conversion functions
  • Automatic range switching, automatic temperature conversion, and unit switching 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.


Manufactured by HORIBA Advanced Techno

Specifications

MODEL

D-74

pH

Measuring principle

Glass electrode method

Measuring range

pH 0.00~14.00

Display range

-2.00~16.00 ※Flashing in the case of outside measurement range.

Resolution

0.01 pH

Repeatability

±0.01 pH±1digit

Auto calibration (5 points)

Calibration record

Standard solution Auto-detect

USA/NIST selectable

Calibration interval alarm

mV(ORP)

Measuring range (Display range)

-2000~2000 mV
※Flashing in the case of outside measurement range.

Resolution

1 mV

Repeatability

±1 mV±1digit

Absolute. relative selectable

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

Conductivity

Measuring principle

2 AC bipolar method

Measuring range (Display range)

0.0 μS/m~200.0 S/m*1

Resolution

0.05%F.S.

Repeatability

±0.5% F.S.±1 digit

Auto range

Change unit (S/m,S/cm)

Auto temperature conversion (25℃)

Temperature coefficient (0~10%/℃)

Salinity

Measuring principle

Conversion from conductivity value

Measuring range (Display range)

0.00%~4.00%
(0.0 PPT~40.0 PPT)

Resolution

0.01%/0.1 PPT

Change unit (%,PPT)

Calibration function

Resistivity

Measuring principle

Conversion from conductivity value

Measuring range (Display range)

0.000 Ω・m~2.000 MΩ・m*2

Resolution

0.05%F.S.

Repeatability

±0.5% F.S.±1 digit

TDS

Measuring principle

Conversion from conductivity value

Measuring range (Display range)

0.01 mg/L~100 g/L

Resolution

0.01 mg/L

Display

Custom LCD with backlight

Function

PC connectivity*3

Printer connectivity(GLP/GMP)

Temperature compensation(Auto/manual)

Auto Hold function

Data memory number

1000

Interval memory

ID input

Clock function

Auto power off

Battery Level Indicator

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 5 mA

Battery life*4

Approx. 200 hours

Dimension

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

Weight (without batteries and electrode)

Approx. 285 g

*1 Cell constant 100 m-1:0.000 mS/m~20.00 S/m 、Cell constant 10 m-1:.0.0 μS/m~2.000 S/m、Cell constant 1000 m-1:0.00 mS/m~200.0 S/m  
*2 Cell constant 100 m-1:0.00 Ω・m~200.0 kΩ・m、Cell constant 10 m-1:0.0 Ω・m~2.000 MΩ・m、Cell constant 1000 m-1:0.000 Ω・m~20.00 kΩ・m
*3 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.
*4 Battery life will be shorter when using optional accessories and backlight LCD is activated.

Schematics

D-70 Series
Electrode stand(Optional)
Electrode stand(Optional)

Downloads


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.