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Labmen instrument Technology Limited
9th floor, Block 3, District D, Liancheng Walking Street, 
Jianshe Road, Yuetang, Xiangtan, Hunan, China
Tel: 86-731-52638888
Fax: 86-731-52638889
Skype: lormanled
wechat: +86 13973220437
whatsapp:  +86 18975218081

pH/DO Meter

Introduction:

•Meter meets with the requirement of international GLP standards. Its features up to automatic calibration, automatic temperature compensation, data storage, timing measurement, clock display, RS-232 output, function setting and self-diagnose etc.

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•There are three different measurement modes: stable display mode; time measurement mode; continuous measurement mode.

•Automatically recognize 13 kinds of pH buffer solution. User can choose anyone from four series of standard buffer solutions: Europe & USA series, NIST series, CHINA series and Self-defined series.

•High purified water and ammonia added purified water pH measuring mode can be set up, especially suitable for electric power and petrochemical industry

•With EH redox potential measuring mode can directly display ORP value which against standard potential of hydrogen electrode.

•Equips new type of DO electrode which has function of automatic temperature compensation and automatic salinity compensation as well as automatic air pressure compensation inside meter to make DO measuring mode has temperature, air pressure and salinity automatic compensation, easy to use, accurate to measure.

•Polarogram type DO electrode has special electrode calibration cap. Only needs 3 to 5 minutes for electrode polarization. Electrode adopts combination diaphragm cap which very convenient to use. Each DO electrode equips with three spare diaphragms caps.

•Meter has the only product serial number.

•Dustproof and waterproof meter meets IP54 standards. All sockets are seal protected by the silica gel caps.

 

Specifications:

pH

Measuring range

Resolution

Accuracy

Input current

Input impendence

Stability

Temp. compensation range

(-1.999 ~ 19.999) pH

0.1/0.01/0.001 pH

Meter:±0.002 pH, connect meter with electrode:±0.01pH

≤1×10-12 A

≥3×1012 Ω

±0.002 pH/3h

(0 to 100) °C(automatic or manual)

mV

Measuring range(mV/ORP/EH)

Resolution

Accuracy

-1999.9mV ~ 0 ~ 1999.9mV

0.1mV

±0.03% FS

Dissolved Oxygen

Measuring range

Resolution

Accuracy

Response time

Residual current

Temp. compensation range

Salinity compensation range

Air pressure compensation

Automatic calibration

Electrode type

(0 ~ 40.00) mg/L(ppm)? (0 ~ 200.0) %

0.1/0.01 mg/L(ppm)? 1/0.1 %

Meter±0.10 mg/Lconnect meter with electrode±0.40 mg/L

?≤30 s(25°C, 90% response)

≤0.1 mg/L

(0 ~ 45) °C(automatic)

(0 ~ 45) ppt(automatic)

(80 ~ 105) kPa(automatic)

Air saturated by water; water saturated by air

Polarogram type

Temperature

Measuring range

Resolution

Accuracy

-10°C~ 110°C

0.1°C

5~ 60°Crange±0.4°C? other range±0.8°C

Other Technical Parameters:

Data storage

Storage content

 

Power

Communication connector

Size and weight

Quality and safety certification

300 groups

Measuring value series number, measuring value, temperature, ATC or MTC state, measuring date and time

DC9V/300mA

RS232

160 × 190 × 70mm/880g

ISO9001:2008, CE and CMC

Working Condition

Environment temperature

Environmental humidity

IP rating

5 ~ 35 °C(0.01grade)  15 ~ 30 °C(0.001grade)

≤75%

IP54?Dustproof and waterproof

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