Functions
1.Special backlit LCD display
2.It can measure conductivity, TDS, salinity and temperature.
3.It functions as automatic temperature compensation and automatic calibration.
4.It provides power failure protection and automatic power-off functions.
5.It has calibration function. The user can calibratesensor coefficient and TDS conversion coefficient.
6.Measuring results can be stored, deleted and viewed. Up to 100 sets of test data can be stored.
7.It has RS-232 port and can be connected with TP-16 printer. If matched with data collecting software, it can be communicated with PC.
8.If matched with the titanium alloy sensor of 0.01cm-1 and sealed measuring reservoir, it can test high purity water.
9.It is equipped with DJS-1C conductancesensor(platinum black) and T-818-B-6 temperaturesensor.
Technical Parameters
1.Measuring range:
Conductivity: 0.000μS/cm～100mS/cm, five measuring ranges and automatic switch
TDS: 0.000mg/L～19.99g/L, five measuring ranges and automatic switch
Salinity: (0.00～8.00)%
Temperature: (0.0～40.0) ℃
2.Accuracy:
Conductivity: ±1.0%(F.S.)
TDS: ±1.0%(F.S.)
Salinity: ±0.20%
Temperature: ±0.3℃±1 bit
3.Stability: (±0.7%F.S.)/3h
4.Temperature compensation range: Manual/Automatic ( 0.00～40.0 ) ℃
5.Power supply: 4 alkaline batteries of model 5
6.Dimension(mm): 210×86×50
7 .Net Weight: 0.5Kg
8.Case outside serial No: WXS-A006-
Package Size: 500*380*220mm
Gross Weight: 3.5Kg
Cell Constant and Measuring Range
|
Electrodeconstant (K) (cm-1)
|
0.01
|
0.1
|
1.0
|
10.0
|
|
Measuring range
|
0.000～19.99μS/cm
|
2.00～199.9μS/cm
|
20.0μS/cm～19.9ms/cm
|
200μS/cm～199.9ms/cm
|
Differences between DDBJ-350 and DDB-303A
|
Model
Specifications
|
DDBJ-350
|
DDB-303A
|
|
Parameters
|
Conductivity/TDS/Salinity/℃
|
Conductivity
|
|
Range
|
Conductivity
|
0.000μS/cm～199.9mS/cm（with 5 switches）
|
0.00μS/cm～100mS/cm（with 4 switches）
|
|
TDS
|
0.000 mg/L～19.99g/L（with 5 switches）
|
—
|
|
Salinity
|
(0.00～8.00)%
|
—
|
|
Temperature
|
（0.0～40.0）℃
|
—
|
|
Resolution
|
Conductivity
|
0.001μS/cm
|
0.01μS/cm
|
|
TDS
|
0.001 mg/L
|
—
|
|
Salinity
|
0.01%
|
—
|
|
Temperature
|
0.1℃
|
—
|
|
Accuracy
|
Conductivity
|
±1.0%（FS）
|
±1.0%（FS）
|
|
TDS
|
±1.0%（FS）
|
|
|
Salinity
|
±0.2%
|
—
|
|
Temperature
|
±0.3℃±1 bit
|
—
|
|
Stability
|
(±0.7%(FS))/3h
|
|
Temp compensation
|
Manual/Auto（0.0～40.0）℃
|
Manual（15.0～35.0）℃
|
|
Temp coefficient
|
2%
|
Manual adjustment
|
|
Calibration
|
May calibrate electrode constant or TDS factor
|
—
|
|
Data storage
|
400 data points with time-and-date stamp
|
—
|
|
View, delete and print
|
Yes
|
—
|
|
Display
|
Backlit LCD
|
|
Under-voltage instruction
|
Yes
|
—
|
|
Output
|
RS-232
|
—
|
|
Software
|
1.1DC
|
—
|
|
Housing
|
IP65
|
—
|
|
Power
|
Four AA batteries
|
Two AA batteries
|
|
Case outside serial No.
|
WXS-A006-1
|
WXS-A004-1
|
|
Dimension (mm)，Weight(kg)
|
210×86×50，0.5
|
170×70×30，0.3
|
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