Auto Surface/Interface Tension Meter

SIT series

SIT series automatic liquid surface interfacial tension meter is laboratory measuring instruments using physical methods instead of chemical to measuring surface interfacial tension of liquid, it can quickly and accurately test surface tension value between liquid & gas and interface tension value between liquid.

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Product info

Description:
SIT series automatic liquid surface interfacial tension meter is laboratory measuring instruments using physical methods instead of chemical to measuring surface interfacial tension of liquid, it can quickly and accurately test surface tension value between liquid & gas and interface tension value between liquid. It is widely used in petroleum, chemical, pharmaceutical, printing, textile, electric power industries.

SIT series of automatic surface/ interfacial tension meter, using advanced electromagnetic force closed-loop force measuring system, microprocessor control which can be automatic measurement and easy operation, with high performance, precision test results, stability, repeatability and linearity.

Features:

  1. Fully automated measurement, to minimize operation error;
  2. Surface tension balance automatically read;
  3. One key cleared (any value between 0-400mN), absolutely correct;
  4. One key calibration, with standard weights supplied, accurately and rapidly;
  5. Using platinum plate method, full compliance with Wilhelmy platinum plate basic principles, so as to achieve:
  6. Changes in surface tension values ​​at different times because of the presence of a surfactant produced
  7. Measure high viscosity liquids (automatically read the balance)
  8. Measure interface tension between different liquid which does not dissolve, such as oil and water.
  9. Simple operation, without any external computer control;
  10. Sample thermostatic temperature cup, sample temperature detector and external bath.
  11. Surface / interfacial tension meter patent number: 200520039453.1.
  12. Surface / interfacial tension meter test mode: platinum plate method (or platinum ring)
  13. Surface / interfacial tension meter operation: automated sample lift, automatic measurement

Specifications:


Model

SIT-1A

SIT-2A

SIT-3B

SIT-4B

Measuring Range

0 ~ 400.0 mN/m

0 ~ 200.0 mN/m

0 ~ 400.0 mN/m

0 ~ 200.0 mN/m

measurement accuracy

0.1 mN/m

0.01 mN/m

0.1 mN/m

0.01 mN/m

sensitivity

0.1 mN/m

0.02 mN/m

0.1 mN/m

0.03 mN/m

Repeatability

0.1 mN/m

0.02 mN/m

0.1 mN/m

0.03 mN/m

Display

LCD

LCD

LCD

LCD

Reading time

3 ~ 5 s

3 ~ 5 s

5 s

5 s

Sample temperature

0 ~ 110℃

0 ~ 110℃

0 ~ 110℃

0 ~ 110℃

Temp. sensor

PT100

PT100

PT100

PT100

Measuring time

3 ~ 5 s

3 ~ 5 s

5 s

5 s

Measure way

Automatic

Automatic

Sample lift plate

Automatic (step is 30mm or 60mm)

Manual (fast step is 16mm, micro step is 40mm)

Measure method

Platinum plate or Platinum ring (all in one is optional)

Interface

RS232

Software

Can display & save curve, data, time

Standard configuration: 


Host

1 set

Platinum plate or ring

1 pc

Glassware

2 set

Standard weight

1 pc

spirit lamp 

1 pc

Tweezers

1 pc

Real time software

1 set

Optional


1

Platinum plate or Platinum ring

2

Water bath, insulation temperature range 15°C ~ 60°C, can be connection with thermostatic device

3

Water bath, insulation temperature range 0°C ~ 110°C, can be connection with thermostatic device

 

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