Model

Specifications

DDSJ-308A

DDS-307A

DDS-307

Parameters

Conductivity/TDS/Salinity/℃

Conductivity/TDS/℃

Conductivity

Range

Conductivity

0.000μS/cm~199.9mS/cm

0.00μS/cm~100mS/cm 

TDS

0.000 mg/L~99.9g/L

0 ~1000mg/L

—

Salinity

0.00~8.00%

—

Temperature

-5.0~105.0℃

0.0~60.0℃

—

Resolution

Conductivity

0.001μS/cm

0.01μS/cm

TDS

0.001 mg/L

1 mg/L

—

Salinity

0.01%

—

Temperature

0.1℃

—

Accuracy

Conductivity

±0.5%(FS)

TDS

±0.5%(FS)

±1.0%(FS)

—

Salinity

±0.1% 

—

Temperature

±0.3℃±1 bit

—

Stability

(±0.3%(FS))/3h

(±0.33%(FS))/3h

Temp compensation

Manual/Auto 0.0~50.0℃

Manual/Auto 0.0~40.0℃

Manual 15.0~35.0℃

Temp coefficient

Adjustable

2%

Calibration

May calibrate electrode constant 

or TDS factor

—

Data storage

200 data with time-and-date

 stamp

—

View, delete and print

Yes

—

Display

Backlit LCD

LCD, dual parameter

LCD, dual parameter

Output

RS-232

—

Software

1.1DC

—

Power

Universal power adapter (9V DC,300mA

,inside – positive, outside – negative)

AC (220±22)V,(50±l )Hz

Case outside serial No.

WXS-A001-1

WXS-A008-1

WXS-A008-1

Dimension (mm),Weight(kg)

290×200×70,1

300×220×90,1.3

300×220×90,1.3

Cell constant (K) (cm-1)

0.01

0.1

1.0

10.0

Measuring range

For solutions

(0.000~19.99) μS/cm

(2.00~199.9) μS/cm

20.0μS/cm~19.9 ms/cm

200μS/cm~199.9 ms/cm

Cell constant (K) (cm-1)

0.01

0.1

1.0

10.0

Measuring range

For solutions  (μS/cm)

0.0~2.0

0.2~20.0

2~1×104

1×104~1×105