Density and Refraction Analyzer / WBA-505/WBA-504

KEM Product

Concentration Meter

Density and Refraction Analyzer


WBA-505 / WBA-504	WBA-505 / WBA-504 +CHD-502N

•		The two built-in sensors each for density and refractive index need just small amount of sample liquids in order to simultaneously measure both density (specific gravity) and refractive index.
•		The built-in thermostat controls measurement temperature in a short span of time to preset degree for precise and quick measurements of both density (specific gravity) and refractive index. The measuring units each for density (specific gravity) and refractive index can individually control and preset temperature.
•		Density measuring unit features viscosity correction for samples of higher viscosity, allowing measured density values to be compensated.
•		Measuring range is wide enough to measure any kinds of samples: Density : 0 to 3 g/cm³ Refractive index: 1.32000 to 1.58000 (WBA-505)
•		With optional CHD-502N Multiple Sample Changer, a series of samples can be automatically and continuously measured in an attended manner.
•		The optional PC card allows you to expand the versatility of operations including more storage space of measurement parameters and data as well as a user’s own concentration conversion tables.
•		The optional data acquisition software designed for WBA-504/505 allows you download measurement results to PC so that the data can be further processed according to a user’s needs and requirements for easier management of acquired data.
•		The commercially available bar code readers compatible with RS-232C serial interface can be connected to AUX port and conveniently read sample ID and lot number.

Specifications of General Concentration meters

Type and Model name

WBA-504

WBA-505

Measuring method

Density	:	Resonant frequency detection
Refractive Index	:	Detection of critical angle with Na-D line

Measuring range

Density	:	0 - 3 g/cm³
R.I.	:	1.32 - 1.70

Density	:	0 - 3 g/cm³
R.I.	:	1.32 - 1.58

Measuring temperature

15 - 50°C

Accuracy

Density

±0.00005 g/cm³

When calibrated with pure water and dry air

Refractive index

±0.0001

±0.00005(R.I. ; 1.32 ～ 1.40)
±0.0001 (R.I. ; 1.40 ～ 1.58)

Temperature

±0.05°C

Minimum sample required

6ml

Auto viscosity correction

Built-in

Measuring time

1 - 4 minutes by manual
2 - 10 minutes by programmed

Display

LCD with back light

Sampling

Manual with syringe
Automatic by DCU-551 Auto Clean and Sampling unit (option)

Calibration

"Air & Water " and "Other STD"

Auto statistical data

Mean value; Standard deviation (SD) ; Relative SD

Recalculation

Data can be recalculated

Printout

IDP-100 impact dot printer (Option)

Data I/O

PC card (option) for additional data storage and
application method

External control

Personal computer	:	RS-232C serial interface
External printer	:	RS-232C serial interface
AUX (Barcode)	:	RS-232C serial interface
Sample changer	:	Serial interface
PC card: Conform to PCMCIA standard

Power source

100 - 120 or 200 - 240V AC ; 50/60Hz

Power consumption

Approx. 140W

Dimension

288(W) x 468(D) x 442(H) mm

Weight

Approx. 19kg

Supplied parts

Power cord 1 pce., Desiccant 1 pce.,
Desiccant tube (with joint) 1 pce.,
Sampling tube (with joint) 1 pce., Silica gel (500g) 1 pce.,
Connecting tube A (with joint) 1 pce.,
Connecting tube B (with joint) 1 pce.
Operation manual 1 pce., and others