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MP512

precision pH meter

Introduction

High precision laboratory bench pH meter, which is suitable for measuring solution of weak ionic strength, and the turbid liquid or colloidal solution. It can be used in the high-precision pH measurements, such as scientific research, quality control, biotechnology, fine chemicals, acid-base titration, etc.

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.
 
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.
 
Meter has the only product serial number.
 
Dustproof and waterproof meter meets IP54 standards. All sockets are seal protected by the silica gel caps.
 

Specification

 
pH Measuring range （-1.999 ~ 19.999）pH
Resolution 0.1/0.01/0.001 pH
Accuracy

Meter:±0.002 pH, connect meter 

with electrode:±0.01pH
Input current ≤1×10-12 A
Input impendance ≥3×1012 Ω
Stability ±0.002 pH/3h
Temp. compensation range (0 to 100) ℃（automatic or manual）
mV Measuring range(mV/ORP/EH) -1999.9mV ~ 0 ~ 1999.9mV
Resolution 0.1mV
Accuracy ±0.03% FS
Temperature Measuring range -10℃~ 110℃
Resolution 0.1℃
Accuracy 5~ 60℃range：±0.4℃  other range：±0.8℃
Other Technical Parameters: Data storage 300 groups
Storage content

Measuring value series number, measuring 

value, temperature, ATC or MTC state, 

measuring date and time
  DC9V/300mA
Power RS232
Communication connector 160 × 190 × 70mm/880g
Size and weight ISO9001:2008, CE and CMC
Quality and safety certification  
Working Condition Environment temperature 5 ~ 35 ℃（0.01grade） 15 ~ 30 ℃（0.001grade）
Environmental humidity ≤75%
IP rating IP54 Dustproof and waterproof

standard kit includes

1. Model MP512 Precision pH meter 1 unit
2. Model 602 flexible electrode holder 1pc
3. 201T-M plastic pH/ATC three-in-one combination electrode 1 pc
4. 2503-C glass pH combination electrode 1 pc
5. MP500 temperature electrode 1pc
6. pH standard buffer solution(pH 4.00,7.00,10.01/50mL) 1pc
7. 9V power adapter 1pc
8. RS-232 communication cable 1 pc
9. MP512 communication software CD 1 pc
10. Operation manual 1 unit
11. Brief operation manual 1 unit
12. Packing List 1 pc

Optional Accessories

Accessory Categry Description Specifications
pH combination electrode 201-C plastic combination pH electrode

Suitable for routine pH 

measurements, widely used, 

BNC connector。
200-C plastic combination pH electrode

Suitable for routine pH measurements, 

long continuous, high precision, BNC plug.
206-C plastic combination pH electrode

Smaller diameter electrode, suitable for 

small diameter container 

in a test, BNC connector
201T-M plastic three-in-one combination pH electrode

Simultaneous measurement of pH and

 temperature, automatic temperature 

compensation, BNC + RCA plugs.
2501-C glass combination pH electrode

For precise pH test, routine laboratory 

use, BNC plug.
2503-C glass combination pH electrode

For precise pH test, used to measure 

complex samples, BNC plug.
2503D-C glass combination pH electrode

For low-temperature solution and pure 

water pH measurement, BNC plug.
2503G-C glass combination pH electrode

Suitable for high temperature solution

 pH measurements, BNC plug
2503S-C glass combination pH electrode

For acid and high-temperature solution

 pH measurements, BNC plug.
2015P-C plane combination pH electrode

For the surface and trace solution

 pH measurement, BNC plug.
ORP Composite electrode 301Pt-C Plastice ORP combination electrode

ORP measurement for conventional, 

wide range of uses, BNC plug
3501Pt –C Glass ORP combination electrode

ORP measurement of routine laboratory, 

test stability, fast response, BNC plug
Temperature Electrode MP500 Temperature electrode

Stainless steel housing, fast response, 

high accuracy, RCA plugs
pH Buffer pH4.00 buffer 500mL/250mL/50mL（bottle）
pH6.86 buffer 500mL/250mL/50mL（bottle）
pH7.00 buffer 500mL/250mL/50mL（bottle）
pH9.18 buffer 500mL/250mL/50mL（bottle）
pH10.01 buffer 500mL/250mL/50mL（bottle）
Electrode soaking

pH（ORP）Combination 

Electrode Soaking Solution

 500mL/250mL/100mL（bottle）

10-5 mol/L Sodium ion electrode 

soaking Solution

Equipped with 7801Sodium electrode . 

500mL/250mL/100mL（bottle）

ORP standard

 solution

 222 mV ORP Standard solution 250mL/100mL/50mL（bottle）
Electrode holder Model 602 Flexible Electrode Holder

Nice appearance of the arc-type bracket,

 you can turn 360 degrees and vertical lift

Model 601Stirring Type 

Electrode Holder

The electrode holder and magnetic stirrer 

combination of new products.
Model 600 Electrode Holder Cheap simple electrode holder