Overview
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*.
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)
|
〇
| |
Calibration record
|
〇
| |
Standard solution Auto-detect
|
〇
| |
USA/NIST selectable
|
〇
| |
Calibration interval alarm
|
〇
| |
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
|
〇
| |
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
| |
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
|
〇
| |
Change unit (S/m,S/cm)
|
〇
| |
Auto temperature conversion (25℃)
|
〇
| |
Temperature coefficient (0～10%/℃)
|
〇
| |
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)
|
〇
| |
Calibration function
|
〇
| |
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
|
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 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
| |
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