Introduction:

• This instrument is made as per national standard GB/T1792 Distillate fuels-Determination of mercaptan sulfur-Potentiometric titration method. It is used to determine the mercaptan sulfur in jet fuel, gasoline,kerosene, and light diesel without hydrothion and the content is within the range of 0.0003~0.01%(m/m).Interferences will appear when elemental sulfur is over 0.0005%(m/m)

• The instrument is composed of PHS-3C PH meter, 95-1 Magnetic Dtirrer and support device.It is the standard instrument for determining mercaptan sulfur distillate fuel.




 

Technical Specification:

 

PHS-3C PH Meter


1. Grade of instrument: 0.01
2. Measurement range  pH:(0~14.00)PH
                                        mV:(0~±1999)mV(automatically polarity display)
                                   Temp.:(0~100.0)℃
3. Minimum display unit: 0.01pH,1mV,0.1℃
4. Compensated temperature range: (0~60)℃
5. Basic error of electronic unit:  pH:±0.01pH
                                                          mV:±0.1%FS
6. Basic error of instrument:  pH:±0.02pH±1word
                  Temp.:±0.5℃±1word
7. Incoming current of electronic unit:  ≤ 2×10-12A
8. Input resistance of electronic unit:   ≥1×1012Ω
9. Compensated temperature error:   ±0.01pH
10. Repeatability error of electronic unit:   pH: ≤ 0.01pH
                          mV: ≥ 1mV
11. Repeatability error of instrument:   ≤ 0.01pH
12. Stability of electronic unit:    ±0.01pH±1word/3h
13. Dimension:     290mm×210mm×95mm
14. Net weight:  1.5kg
15. Working condition:
 a) Ambient temperature:(5~40)℃
 b) Relative humidity:   ≤85%
 c) Power supply: AC(220±22)V, (50±0.5)Hz
 d) No obvious vibration
 e) No external magnetic field interference except earth magnetic field

 

 

95-1 Magnetic Stirrer


1. Power supply:  AC220V±10%  50Hz
2. Working mode:  Continuously
3. Maximum stirring capacity:2000ml
4. Heating power:  Step-less adjustable within 300W
5. Rotation speed:  (20~1200)r/min
6. Electric motor torque:  7.6mm/V.m
7. Temperature controlling accuracy:  ±1℃
8. Temperature controlling range:   room temperature +5℃~100℃
9. Timing range:   (20~1200)min
10. Reversing time:    (5~30)s
11. Dimension:  230mm×150mm×130mm(The bar is not included)
       Burette:  10mL,scale division is 0.05mL