Bante Instruments TB200 User Manual

7 I Appendix
Matching the Sample Vials
For better accuracy and repeatability, using an indexed sample vial is
best choice for turbidity measurement. If you need to use a few vials,
match these vials are necessary.
2.1 Repeat steps 1.1 through 1.6 above for each vial and record the
readings.
2.2 Find the closest position of these vials measuring value and mark
it.
Preparation of Formazin Standards
Turbidity-Free Water:
The turbidity-free water is used for preparation of turbidity standards
and is prepared by filtering distilled water through a 0.45 µm or smaller
pore-sized membrane.
Turbidity Standards:
4000 NTU: Dissolve 1 gram hydrazine sulfate (NH
2
)
2
• H
2
SO
4
in the
turbidity-free water and dilute to 100 ml in a volumetric flask.
Dissolve 10 grams hexamethylenetetramine (CH
2
)
6
N
4
in the turbidity-
free water and dilute to 100 ml in a volumetric flask.
Mix 5 ml of hydrazine sulfate and 5 ml of hexamethylenetetramine
solutions in a 100 ml volumetric flask and let stand 24 hours at 25/±3°C.
2000 NTU: Mix 50 ml of 4000 NTU standard in a 100 ml volumetric
flask and dilute to the mark.
1500 NTU: Mix 37.5 ml of 4000 NTU standard in a 100 ml volumetric
flask and dilute to the mark.
1000 NTU: Mix 25 ml of 4000 NTU standard in a 100 ml volumetric
flask and dilute to the mark.
500 NTU: Mix 12.5 ml of 4000 NTU standard in a 100 ml volumetric
flask and dilute to the mark
200 NTU: Mix 10 ml of 4000 NTU standard in a 100 ml volumetric
flask and dilute to the mark. Mix 50 ml of above standard in a 100 ml
volumetric flask and dilute to the mark.
10 NTU: Mix 2.5 ml of 200 NTU standard in a 100 ml volumetric flask
and dilute to the mark.
- Or -
Mix 2 ml of 500 NTU standard in a 100 ml volumetric flask and dilute
to the mark.
Optional Accessories
Order Code Description
TB-GV Glass sample vial, 60 (H) × 25 (Dia) mm (2.36 × 0.98 in.)
TB-CAL Turbidity standards 0.02, 200, 500, 1000 NTU, 20 ml
USB-B USB connector A to B, 1 m (3.3 ft) cable
DCPA-12V 12V DC power adapter, european standard plug
Specifications
Model
TB200
Measurement Method
ISO 7027 nephelometric method (90°)
Range
0 to 2000 NTU/FNU
0 to 500 EBC
0 to 9999 ASBC
TSS range depends on conversion factor
Resolution
0.01 NTU (0 to 99 NTU)
0.1 NTU (100 to 999 NTU)
1 NTU (1000 to 2000 NTU)
Accuracy
±2% of reading (0 to 500 NTU),
±3% of reading (501 to 2000 NTU)
Calibration Points
2 to 7 points
Calibration Standards
0.02, 10.00, 200, 500, 1000, 1500, 2000 NTU
Light Source
Infrared-emitting diode (850 nm wavelength)
Detector
Silicon photodiode
Stray Light
< 0.02 NTU
Sample Vial
60 (H) × 25 (Dia) mm (2.36 × 0.98 in.)
Sample Volume
20 ml
Memory
200 data sets
Communication
USB interface
Operating Temperature
0 to 50°C (32 to 122°F)
Storage Temperature
0 to 60°C (32 to 140°F)
Relative Humidity
< 80% (non-condensing)
Display
4.5 in. TFT LCD
Power Requirements
12V/2A DC power adapter
Dimensions
250 (L) × 177 (W) × 96 (H) mm
(9.8 × 6.9 × 3.7 in.)
Weight
1.2 kg (2.6 lb)

Bante Instruments TB200 Specifications

General

Brand	Bante Instruments
Model	TB200
Category	Measuring Instruments
Language	English