DO Meter

Dissolved Oxygen (do) meters

PORTABLE DISSOLVED OXYGEN METER AMT07

Feature:
1. Microprocessor based for fast and accurate measurements.
2. Special viewing angle designed of waterproof housing IP 57 rated. It floats on water.
3. Large LCD display and Temperature Simultaneously.
4. Simple to calibrate by one keyboard and automatic temperature compensation (ATC), Manual Salinity (MSC) and Altitude (MAC) Compensation.
5. Multi-functions with Data-hold, Max/Min and shows PTS after calibration. Degree ℃/℉ are switchable.
6. Low battery and consumption indicator. Auto power shut off after 10 minutes of non use.
7. Easy to replace electrode module and the type of electrode would be recognized automatically and shown in display during insertion.

Specifications:
	DO	O2	Temp
Range	0~20.00mg/L	0~200%	0~90.0℃
Accuracy	±0.2 + 1digit	± 2% FS	±0.2+1 digit
Resolution	0.01	0.1	0.1
ATC	0~50 ℃
MSC	0~50 ppt
MAC	0-20000 ft
Calibration	100% in air
Power	DC1.5V x 4 battery size:AAA/UM-4
Dimensions	Meter: 195 x 40 x 36 mm, Kits: 230 x 205 x 50 mm
Weight	Meter: 135g(with battery), Kits: 780g

PORTABLE DISSOLVED OXYGEN METER DO-820/821

Automatic Calibration:
The meter can be calibrated by one or two points. The meter with function of auto recognition when in calibration. If you used solution by mistake, The meter will display tips automatically and save the original value.
Automatic Temperature Compensation:
Due to influence on the range of dissolvability and diffusion caused by temperature, the meter must compensate temperature when measure dissolved oxygen. This series with function of automatic temperature compensation and measurement bring your convenience. After the meter's sensor connected to host, it will enter temperature measurement and compensation mode automatically.
Salinity Coefficient and Atmospheric Pressure:
The salt dissolved in solution will limit oxygen content. Relationship between oxygen's concentration and nutrient changed with the salinity of sample solution. The meters can set salinity value in the range of 0 to 35g/L, and can set atmospheric pressure in the range of 450 to 850 mmHg.
Save Data:
The meter can save data 48 sets. Press [SAVE], and the meter will store current measured value automatically and serial number, date, time and other information.
Output Data:
The data stored in meter can be sent to PC through link. You can also save measured value or print out test report via software.
Multi-Measurement Units:
The meter can set parameter units accord with your country. E.G The conversion between measured units mg/L and ppm; Pressure units kPa and mmHg; Temperature units ^oC and ^oF.

Model	DO-820	DO-821
Dissolved Oxygen Range	0.0~20.0mg/L or ppm	0.0~20.0mg/L or ppm
Resolution	0.1mg/L	0.01mg/L
Dissolved Oxygen Accuracy	±0.5mg/L	±0.3mg/L
Saturation of Oxygen	0.0~200.0%	0.0~200.0%
Accuracy	±10.00%	±5.00%
Temperature Range	0.0~50.0^oC or 32~122^oF
Temperature Accuracy	±1^oC, ±1.8^oF
Temperature Compensation	0.0~40.0^oC, Automatic
Calibration Points	1 or 2 Points
Salinity Correction	0~35g/L, Adjustable
Atmospheric Pressure Correction	450~850mmHg or 60.0~112.5kPa
Memory	48
Output	USB
Power Requirement	9V/800mA Battery
Display	4.3 inch LCD
Dimension	185(L)mm×88(W)mm×32(H)mm
Weight	300g

PORTABLE DISSOLVED OXYGEN METER DO900

DO900 precision dissolved oxygen meter are used to measure amount of gaseous oxygen dissolved in a liquids.
Specifications and Features:
Range: 0-40.00 mg/L (ppm)
Accuracy: +-0.10% F.S.
ATC: 0-45C
Automatic Salinity Compensation: 0-45ppt
Manual Air Pressure Compensation: 66-200kPa
IP57 waterproof
Polarogram type DO electrode with special electrode calibration sets, electrode polarization for only 3-5 minutes
DO electrode can simultaneously measure DO, Conductivity and Temperature to realize automatic salinity compensation for DO measurement.

BENCH LAB DISSOLVED OXYGEN METER DO-980

　
DO-980 precision dissolved oxygen meter are used to measure amount of gaseous oxygen dissolved in a liquids.

Feature:
Two-point push-button calibration (Zero and 100%)
Automatic temperature compensation
Salinity and barometric pressure compensation
Multi-measurement units (mg/L/ppm; kPa/mmHg, etc.)
Automatic operation message prompts
Expanded memory stores and recalls up to 99 data sets
Built-in real-time clock stamps for stored data
USB Communication interface

Model	DO-980
Dissolved Oxygen Range	0.00~20.00mg/L or ppm
Resolution	0.01mg/L
Dissolved Oxygen Accuracy	±0.3mg/L
% Saturation of Oxygen	0.0~200.0%
Accuracy	±5.00%
Temperature Range	0.0~50.0^oC, 32~122^oF
Temperature Accuracy	±1^oC, ±1.8^oF
Temperature Compensation	0.0~40.0^oC, Automatic
Salinity Correction	0~35g/L
Barometric Pressure Correction	450~850mmHg, 60.0~112.5kPa
Calibration Points	1 or 2 Points, 100% in air or 0% in solution
Memory	99 data sets
Output	USB Communication interface
Power Requirements	DC9V, using AC adapters, 220VAC, 50Hz
Dimensions	210(L)mm×188(W)mm×60(H)mm

Dissolved Oxygen Meter DO-5510HA M a n u a l

FEATURES:
*The polarographic type oxygen probe with an incorpo-rated Temp. sensor, high precision measurement for Dissolved Oxygen (DO), Oxygen in air(O₂) & Temp. measurement.
* Heavy duty dissolved oxygen probe, probe head can connect with BOD bottle.
* Automatic Temp. Compensation from 0 to 50 ℃ for sensor probe.
* Build in " % SALT" & " Mountain Height" compensation adjustment button.
* Microprocessor circuit.
* Records Maximum, Minimum value.

Range:
     Dissolved Oxygen: 0-20.0 mg/L (liter).
    Oxygen in Air: 0-100.0 %
    Temperature 0 to 50 ℃.
Accuracy:
     Dissolved Oxygen 0.4mg/L
    Oxygen in Air: 0.7% O₂
     Temperature 0.8℃/1.5℉
Resolution:
     Dissolved Oxygen 0.1mg/L
    Oxygen in Air: 0.1% O₂
    Temperature 0.1℃

Dissolved Oxygen Meter DO-510

Range:
Dissolved Oxygen: 0.00-19.99mg/L (liter).
Oxygen in Air: 0.0-255.0 %.
Accuracy: ±1.5% F.S.
Resolution:
Dissolved Oxygen 0.01mg/L
Oxygen in Air: 0.1% O2
Temperature Compensation: 0 -45℃
Power Supply: DC 9V
Dimensions: 123 x 72 x 33mm

Dissolved Oxygen Meter DO-607A

FEATURES:

3/1/2LCD with blue-light
Automatic temperature compensation
Immediate response
Easy to carry
D.C. power supply: one piece of 9V battery
The electrode system is composed of polarographic oxygen electrode and temperature electrode

Range:
1. Range: Dissolved Oxygen: 0-20 mg/L; Temp: 0-40°C
2. Accuracy: Dissolved oxygen: ±0.3 mg/L±1bit (basic temperature); ±0.5 mg/L±1bit(differ: ±10°C from basic temperature);
Temperature：±1°C±1bit
3. Response time：≤30s (90% response at 20.0℃).
4. Stability of the meter: not over ±0.2mg/L ±1bit within one hour
5. Remaining current：≤0.15mg/L
6. The range of automatic temperature compensation：0-40℃

Dissolved Oxygen Meter DO-608

FEATURES:

1. With the function of double displays of dissolved oxygen concentration value and temperature, dissolved oxygen saturation value and temperature
2.Measuring D.O. concentration, saturation, electrode current and temperature; With the functions of automatic temperature compensation and calibration of zero oxygen, full scale, atmosphere pressure and salinity.
3.The meter has the function of protection from electricity cutting off. With Measuring results can be stored, deleted, viewed and printed. At most 250 sets of data can be stored.
4. With wide screen LCD. It is easy to operate with the prompt facility. With PC panel of new material, thus the meter has good reliability.
5. With low power consumption design, with the functions of lack of voltage display, switching off automatically.
6.With RS-232 interface which is connected and with Model TP-16 printer to print measuring results or connected with computer to communicate.
7.Grade of the case protection is IP65, resistant to water and dirt, suitable for field operation
8.The electrode system is composed of polarographic oxygen electrode and temperature electrode.

Range:
1.Measuring range: Dissolved oxygen concentration: (0.00~19.99)mg/L; Dissolved oxygen saturation: (0.0~199.9)%; Temperature: (0~40.0)℃.
2.Automatic temperature compensation range: (0.0~40.0) ℃.
3.Accuracy of the meter: D.O. concentration: ±0.3mg/L±1bit(basic temperature);±0.5mg/L (differ: ±15°C from basic temperature); D.O. saturation : ±5.0% (basic temperature); ±10.0% differ: ±15°C from basic temperature; Temperature: ±0.5℃±1bit.
4.Repeatability of the meter: ≤0.2mg/L.
5.Stability of the meter: not over ±0.2mg/L within one hour.
6.Remaining current: ≤0.1mg/L.
7.Response time ≤20s (90% response at 20.0℃).
8.Salinity calibrating range: (0.0~40.0)g/L.
9.IP65 protection grading

Dissolved Oxygen Controller DO-8600

Applications: Dissolved oxygen measure in industrial boiler inlet water, industrial ferment measure, water measure of environment protection
Features: Some of the data can be set, such as elevation, salinity etc; automatic temperature compensation Memory function in case of power off, no need to reserve a battery, data can be saved for more than 10 years Isolated, double channels 4~20mA output, digital communication terminal Pt 1000 temperature compensation component, with temperature control/communication function Double channels OCT configuration control output, with pulse frequency conversion output function, high/low limit alarm DC 24V power supply ,which meet the satety regulation even in damp site
Technical Data: Measure range: 0.00～19.99mg/L; 0.0～199.9% Resolution: 0.01 mg/L 0.01% Accuracy: ±1.5% FS Automatic Temperature compensation: 0～45℃ Output signal: Isolated 4~20mA output Working environment temperature: 0~50℃, Humidity: 90%RH max Control output mode: OC门 Contactor capacity: ≤80mA Power supply: AC/DC 24V±15% Protection level: IP65（when the back cover was covered） Outline dimension: 96mm×96mm×105mm(H×W×D） Hole size: 91mm×91mm（H×W） Fix mode: Panel mounting

Model	High Concentration	Low Concentration
Measuring Range	0~50ppm/m³, 0~100mg/m³	0~2000ppb/m³, 0~4mg/m³
Mini Measuring Capacity	0.1ppm/m³, 0.2mg/m³	3ppb/m³, 0.006mg/m³
Acquisition Gas	50mL/minute	250mL/minute
Response Time	3 minutes, 90%
Accuracy	±10% F.S
Precision of Analysis	±3% F.S
Power Requirements	350(L)mm×280(W)mm×220(H)mm
Dimensions	220V/50Hz
Weight	5kg

MANUAL DISC POLARIMETER SWXG-4 M a n u a l

Measuring Range	-180^o~ +180^o
Mini Scale	±0.05°
Accuracy	±0.05°
Reproducibility	≤0.05°
Tube Length	100mm 200mm
Light Source	Sodium Light 589.44nm
Wavelength	589.44nm
Power	AC220±22V/50Hz 20W; AC110/60Hz 20W
N.W.	7kg
Size	60cm×22cm×40cm
Steel Disc, Casting Aluminum Base

MANUAL DISC POLARIMETER LWXG-4

FULL-CIRCLE MANUAL POLARIMETER LWXG-4 manual polarimeter is ideal for determining concentration levels of samples for applications in the medical, educational, pharmaceutical, and cosmetic industries etc. Easy Measurement: The polarimeter with 589.44nm monochromatic sodium lamp. After powered on, the polarized light beam is immediately project on filter, polarizer etc. You can view the visual fields of brightness or shade through eyepiece. Rotate the vernier knob till the visual field to equal brightness. (Zero point) Put the sample tube in measuring field chamber. Rotate the vernier knob again, you can view equal brightness. Read the scale from magnifier that is measured value. Specific Optical Rotation Measurement: Specific optical rotation is constant of substance, you can measure it by 100mm glass tube when temperature of solution at 20^oC. Specification:		Purity Measurement: The polarimeter is ideal for determining purity of sample. If you want to know its purity, you need only measure its the angle of rotation and calculate it. Concentration Measurement: For some substance of known specific optical rotation, you can measure its the angle of rotation and calculate concentration according to formula. International Sugar Scale: According to international sugar scale, put the 26g pure sugar in solution, The angle of rotation of solution is 34.626^o. By the rules, you can calculate the purity of sugar. What's included: 100/200mm tube, Sodium lamp.

Measurement Range	-180^o~ +180^o
Scale Value	1^o
Vernier	0.05^o
Magnifier	3x
Light Source	Sodium Lamp
Wavelength	589.44nm
Tube Length	up to 200mm
Stable Time	10 minutes
Power Requirements	220VAC/50Hz
Dimensions	500(L)mm×135(W)mm×330(H)mm
Weight	5kg

SEMIAUTOMATIC POLARIMETER LWXG-5

LWXG-5 semiautomatic polarimeter used to measure angle of rotation, specific optical rotation of optically active substance. You can calculate its purity, concentration and percentage by measured value. Features: Microprocessor-Based The angle of rotation is digitally displayed Simple push-button adjustment of visual fields Zero indicator light confirms accurate calibration Specific Optical Rotation Measurement: Specific optical rotation is constant of substance, you can measure it by 100mm glass tube when temperature of solution at 20^oC. Purity Measurement: The polarimeter is ideal for determining purity of sample. If you want to know its purity, you need only measure its the angle of rotation and calculate it. 　 Concentration Measurement: For some substance of known specific optical rotation, you can measure its the angle of rotation and calculate concentration according to formula. Specification:		International Sugar Scale: According to international sugar scale, put the 26g pure sugar in solution, The angle of rotation of solution is 34.626^o. By the rules, you can calculate the purity of sugar. What's included: 100/200mm tube, Sodium lamp.
Measuring Range	-180^o~ +180^o
Accuracy	±0.02^o
Light Source	Sodium lamp
Optical Wavelengths	589.44nm
Stable Time	5 minutes
Tube Length	up to 200mm
Power Requirements	220VAC/50Hz
Dimensions	500(L)mm×58(W)mm×48(H)mm
Weight	7kg

AUTOMATIC POLARIMETER LWZZ-2A

LWZZ-2A automatic polarimeter is the basic scientific instrument used to measure angle of rotation, specific optical rotation of optically active substance. Automatic Measurement: LWZZ-2A built-in auto-controlling system. Power on the polarimeter, the system will search for zero point automatically. You need only put the sample tube in measuring field chamber, the polarimeter will display the angle of rotation. Auto-judge substance form levorotatory or dextrorotatory: The polarimeter can auto-judge compoundor form levorotatory or dextrorotatory. If there is negative measures value, that means is levorotatory substance, if appearing positive measures value, it means is dextrorotatory substance. What's included: 100/200mm tube, Sodium lamp.
		Reproducibility: In experiment, you need test a sample solution three times or more to ensure the accuracy of the measured value, you can press [ + ] or [ - ] key and the polarimeter will test again. The polarimeter not only can test the angle of rotation of substance and but can calculate its purity, concentration and percentage.
Measuring Range	-45^o~+45^o
Accuracy	±0.02^o
Reproducibility	±0.01^o
Resolution	0.005^o
Light Source	Sodium lamp
Optical Wavelengths	589.44nm
Stable Time	5 minutes
Tube Length	up to 200mm
Power Requirements	220VAC/50Hz
Dimensions	600(L)mm×300(W)mm×200(H)mm
Weight	25kg

AUTOMATIC POLARIMETER SWZZ-2A & SWZZ-2B

Model Number	SWZZ-2A	SWZZ-2B
Measuring Range	-45^o~+45^o
Mini Scale	±0.005°
Accuracy	±(0.01°+ Measure Value ×0.05%)
Reproducibility	≤0.007°
Sample Transmittance	≥10%
Light Source	Sodium Light
Wavelength	589.44nm
Power	AC220±22V 50Hz±1Hz 100W, 110V/60HZ
N.W.	28kg
Data Output	N/A	RS232
Size	72cm×44cm×35cm

AUTOMATIC POLARIMETER SWZZ-1S & SWZZ-2S

Model Number	SWZZ-1S	SWZZ-2S
Measuring Range	-45^o~+45^o
Mini Scale	±0.001°
Accuracy	±(0.01°+ Measure Value ×0.05%)
Reproducibility	≤0.002°
Sample Transparence	≥1%
Light Source	Sodium Light
Wavelength	589.44nm
Power	AC220±22V 50Hz±1Hz 100W, 110V/60HZ
N.W.	28kg
Data Output	N/A	RS232
Size	72cm×44cm×35cm

AUTOMATIC POLARIMETER FOR SUGAR SWZZ-1SS & SWZZ-2SS

Model Number	SWZZ-1SS	SWZZ-2SS
Measuring Range	±120° Z
Mini Scale	±0.01° Z
Accuracy	±(0.03°+ Measure Value ×0.05%)
Reproducibility	≤0.02°
Sample Transparence	≥1%
Light Source	Sodium Light
Wavelength	589.44nm
Power	AC220±22V 50Hz±1Hz 100W, 110V/60HZ
N.W.	28kg
Output	N/A	RS232
Size	72cm×44cm×35cm

Dual Range AUTOMATIC POLARIMETER SWZZ-3

Model Number	SWZZ-3
Measuring Range	±45°; ±120°Z (For Sugar)
Mini Scale	±0.001°; ±0.01°Z (For Sugar)
Accuracy	±(0.01°+ Measure Value ×0.05%) ; ±(0.03°Z+ Measure Vale x 0.05%)
Reproducibility	≤0.002°; ≤0.02°Z
Sample Transparence	≥10%
Light Source	Sodium Light
Wavelength	589.44nm
Power	AC220±22V 50Hz±1Hz 100W
Power	AC110V/60HZ
N.W.	28kg
Output	RS232
Size	72cm×44cm×35cm

New LED DUAL RANGE AUTOMATIC POLARIMETER WSG-2D and WSG-3D

Model Number	WSG-2D	WSG-3D
Measuring Range	±45°; ±120°Z (For Sugar)
Mini Scale	±0.005°; ±0.01°Z	±0.001°; ±0.01°Z
Accuracy	±0.01°+ Measure Value ×0.05%	±0.01°+ Measure Value ×0.03%
Accuracy	±0.03°Z+ Measure Vale x 0.05%	±0.03°Z+ Measure Vale x 0.03%
Repeatability	≤0.007°; ≤0.02°Z	≤0.002°; ≤0.02°Z
Sample Transparence	≥10%	≥1%
Light Source	LED + Light Filter
Light Life	20,000 hours mini
Power	AC220±22V 50Hz±1Hz 100W; AC110V/60HZ
N.W.	28kg
Data Output	RS232
Size	72cm×44cm×35cm

POLARIMETER OPTIONAL PARTS


Sodium Lamp 589.44nm SL589	Sample Tube 100mm ST100	Sample Tube 100mm ST200

Sample Tube 100mm SD100	Sample Tube 200mm SD200	Sample Tube 100mm SP100

Sample Tube 200mm SP200	Sample Tube 50mm SW50	Standard Quartz Tube ±5° SQ05

Standard Quartz Tube ±15° SQ15	Standard Quartz Tube ±35° SQ35

Lab Recirculating Chiller LX-150
Temperature Set Range:	5～35℃
Accuracy:	±0.1℃
Cooling Power:	150W@20℃
Recirculating Pressure:	0.4Bar
Max Output:	10L/Minute
Tank Capacity:	1.0L
Size:	230x280x380mm
Power:	AC220V/50HZ, 5A; 110V/60HZ
Net Weight:	18Kg