horiba TW-100, Instruction Manual

Page: 167 / 175

9 REFERENCE
155
Table 1 Measurement item specifications
Installation
environment

Flat and stable location with few vibrations or shocks

No dust, mist or corrosive gas in the air

Under atmospheric pressure

No direct sunlight

Good ventilation

Altitude 2000 m or lower
No. Measurement item
Measurement
system
Measurement range Repeatability Calibration method
1 Turbidity
Transmitted
light
absorbance
method
0 FTU to 2 FTU
0 FTU to 4 FTU
±2.5% of full scale
Formazine standard
solution or polystyrene
latex standard solution
2 Color
Transmitted
light
absorbance
method
0 CU to 10 CU
0 CU to 20 CU
±5.0% of full scale Standard color solution
3 Residual chlorine
Polarographic
method
0 mg/L to 2 mg/L ±2.5% of full scale DPD colorimetric method
4 Water pressure
Semiconductor
detection
method
0 MPa to 1 MPa ±1.0% of full scale Standard pressure gauge
5 pH (optional)
Glass electrode
method
pH 2 to pH 12 ±0.1 pH
pH 7, pH 9 standard
solution
6
Conductivity
(optional) AC 2 pole
method
0 mS/m to 50 mS/m ±2.0% of full scale KCl standard solution
7
Water temperature
(optional) Thermistor
method
0

C to 50

C ±0.5

C Standard thermometer