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
