INSTRUMENTS

Code : DY-ZDJ-5

Auto Potentiometric Titrator

Instrument functions: 1. Touch screen, English operation interface for easy use.
2. Its screen is 5.7 inch large and can show titration curve, first derivative and graphics. Also, it can edit and modify titration modes.
3. It has modular design and is composed of volumetric (coulomb) titration device, controlling device, measuring device which can realize potential titration, conductivity titration and constant titration.
4. Potential titrator is composed of volumetric titration module, controlling module and potential measuring module.
5. Conductivity titrator is composed of volumetric titration module, controlling module and conductivity titration module.
6. Constant titrator is composed of volumetric titration module, controlling module and constant measuring module.
7. Coulomb Titrator is composed of coulomb titration module, controlling module and potential measuring module.
8. It has pre-titration, preselected endpoint titration, blank titration and manual titration modes. The user can also create specific titration modes to meet different experiment requirements.
9. The instrument can be connected with TP-16,TP-24 and TP-40 serial printers and print measuring data, titration curve and calculation results.
10. The instrument is controlled by the computer. The real-time potential curve, first derivative, second derivative diagram can be shown on the screen. If matched with Rex specific titration software, it can conduct titration analysis, realize editing, modification of titration methods. It also functions as storage of titration curve and data, editing of titration calculation, dealing of database and statistics.
11. Different sensors can be chose to conduct acid base titration, redox titration, precipitation titration, complexometry titration, non-aqueous titration and pH value measurement.
12. The stirring system adopts PWM modulation technique and applies software to reduce the noise.
13. The titrator adopts the specific material which is against perchloric acid corrosion and can conduct several titration reactions.
 
Specifications: 1. Measuring Unit:
a) Potential  (included?
Measuring range: ±1999.0 mV?0.00?14.00 pH
Resolution: 0.1mV?0.01pH
Accuracy: ±0.03%FS?±0.01pH±1 bit
b) Constant (optional)  
Measuring range: (0?199.9) μA?(0?19.99) μA?(0?1.999) μA?(0?0.199) μA
Polarization voltage: 30mV?50mV?100mV
Accuracy: Control titration sensitive?±5%FS?
Polarized current inspection error?±2.5%FS
c) Conductivity (optional?
Measuring range: 0.000μS/cm ?199.9?S/cm
Resolution:0.001μS/cm
Accuracy: ±1.0?FS
d) Temperature
Measuring range: -5.0?105.0 °C
Resolution:0.1°C
Accuracy: ±0.3°C±1 bit
2. Cylinder and valve system: (Volumetric titration unit could be replaced by coulometric titration unit)
Titration analysis of repetitive: 0.2%
Titration volumetric of accuracy: 10ml burette: ±0.025ml?20ml burette: ±0.035ml
Resolution of burette: 10ml burette: 1/10000?20ml burette: 2/10000
Infusion or supplementary speed of burette: (50±10)s (when burette is full scale)
3. Control device
a) Large, touch LCD screen (included): Easy to operate
b) Computer software control (Computer is optional): Could make titration analysis on computer’s virtual titration operational interface and achieve remote control
4. Stability: (±0.3mV±1 bit)/3h
5. Calibration: Up to two
6. Power: AC(220±22)V?(50±1)Hz
7. Case outside serial No.: WXS-A004-3
8. Dimension (mm): 360×300×300
9. Weight(kg):10            
Code : DY-ZDJ-4A

Auto Potentiometric Titrator

Instrument functions: 1. LCD display and Chinese operation interface which can show measuring parameters and results.
2. It has pre-titration, preset endpoint titration, blank titration or manual titration functions. It can form specific titration modes according to the user’s habit.
3. There are several different titration modes with different sensors: acid base titration, redox titration, precipitation titration, complexometry titration and non-aqueous titration.
4. The stirring system adopts PWM modulation technique and applies software to reduce the noise.
5. It has RS-232 communication port and can be connected with TP-16 printer to print measuring data, titration curve and calculation results.
6. Specific Rex titration software can be used to connect with PC and the results can be shown on the screen. Also, the titration modes can be edited and modified for remote control and calculation of several statistics.
7. The titrator adopts the specific material which is against perchloric acid corrosion and can conduct several titration reactions. Specifications: 1. Measuring range:
pH: (0.00?14.00)pH
mV: (-1800?1800.0)mV
temp: (-5.0?105.0)°C
2.  Resolution
pH: 0.01pH
mV: 0.1mV
temp: 0.1°C
3. Accuracy:
pH: ±0.01pH±1 bit
mV: ±0.03%FS 
Temp: ±0.3°C±1 bit
4. Accuracy of titration tube volume:
10ml titration tube: ±0.025ml
20mltitration tube: ±0.035ml
5. Resolution of titration tube:
10ml titration tube: 1/10000
20mltitration tube: 2/10000
6. The speed of transfusion or fluid infusion: (50±10)s(When the titration tube is full)
7. Titration analysis of repeatability: 0.2%
8. Titration control sensitivity:±2 mV
9. Stability: (±0.3mV±1 bit)/3h
10. Power: AC (220±22)V, (50±1)Hz
11. Dimension(mm): 340*400*400
12. Weight: 10 kg          
Code : DY-ZDJ-2

Automatic Titrator

Instrument functions: It can control titration endpoint according to preset potential.
It can pre-control potential adjustment.
It adopts solenoid valve for controlling dropping liquid.
It has manual, automatic and constant pH (potential) titration modes.
It is equipped with delay circuit of titration endpoint.
It is suitable for potential titration for laboratory volumetric analysis.
It is equipped with JB-1A stirrer. Specifications: 1. Measuring range:
a) pH:(0.00~14.00)pH
b) mV:(-1400~1400)mV
2. Resolution
a) pH:0.01pH
b) mV:1mV
3. Accuracy:
a) pH:±0.03pH±1 bit
b) mV:±0.35%FS
4. Stability:±0.01pH/3h
5. Input impedance>=3×1011Ω
6. Power: AC(220±22)V,(50±1)Hz
7. Dimension(mm):300×235×100
8. Weight: 3kg              
Code : DY-ZDJ-5B

Coulometric Titrator

Instrument functions: 1. LCD touch screen, Chinese operation interface and modular design
2. It can store titration curve and data.
3. It has RS-232 bi-directional port and has power failure protection function.
4. It can be connected with TP-16,TP-24 andTP-40 printer. Also, it can print measuring data, titration curve and calculation results.
5. It uses specific titration software to achieve replacement of control device by computer, to display titration curve and measuring data online. Also, It functions as titration modes editing, calculation, storage of titration curve, database dealing and statistics.
 
Specifications: 1. Measuring range
a) mV?(-1999.9?1999.9)mV
b) Electrolyte current?1?10?50mA
2. Electrolyte current Accuracy: ±0.25?(reading)?(the maximum load is 500Ω )
3. The repeatability of titration analysis: ≤0.5?(the minimum is 3s)
4. Power: AC (220±22)V?(50±1)Hz
5. Dimension(mm)?360×300×300
6. Weight?10kg

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