shanghai san-凯时娱乐

mp525 ph/do meter
    for laboratory precision ph dissolved oxygen measurement. suitable for biotechnology, aquaculture, power plants and environmental protection industries in the field of education and research more widely used.

● 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.
● 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.

measuring range
input current
input impendance
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) ℃(automatic or manual)
measuring range(mv/orp/eh)
-1999.9mv ~ 0 ~ 1999.9mv
±0.03% fs
dissolved oxygen
measuring range
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/l,connect meter with electrode:±0.40 mg/l
 ≤30 s(25℃, 90% response)
≤0.1 mg/l
(0 ~ 45)℃(automatic)
(0 ~ 45)ppt(automatic)
(80 ~ 105)kpa(automatic)
air saturated by water; water saturated by air
polarogram type
measuring range
-10℃~ 110℃
5~ 60℃range:±0.4℃  other range:±0.8℃
other technical parameters:
data storage
storage content
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
160 × 190 × 70mm/880g
iso9001:2008, ce and cmc
working condition
environment temperature
environmental humidity
ip rating
5 ~ 35 ℃(0.01grade) 15 ~ 30 ℃(0.001grade)
ip54 dustproof and waterproof

1. model mp525 ph/ do meter 1set
2. model 602 flexible electrode holder 1pc
3. model 901 intelligent stirrer 1set
4. 201t-m plastic ph/atc three-in-one combination electrode 1pc
5.2503-c glass ph combination electrode 1pc
6. mp500 temperature electrode 1pc
7. do500 do electrode 1pc
8. ph standard buffer solution(ph4.00, ph7.00 and ph10.01/50ml) 1btl/each
9. 9v power adapter(meter use)e 1pc
10. 6v power adapter(stirrer use) 1pc
11. do503 membrane cap(do electrode use) 3pc
12. do502 do electrode inner solution(30ml) 1btl
13. cathode polishing paper 2pc
14. b628 stirring bead 3pc
15.aa battery 2pc
16. rs-232 communication cable 1pc
17. mp525 communication software disk 1pc
18. operation manual 1unit
19. brief operation instruction 1unit
20. packing list 1pc

accessory categry

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.

do electrode
do500 do electrode
polarographic-type do electrode,for laboratory and field using, 8-pin plug
do electrode attachment
do503 do electrode membrane cap
combined membrane cap,dedicated to the do500 do electrode, size: 3 / group
do502 do electrode electrolyte
added electrolyte, dedicated to the do500 do electrode, specifications: 30ml/bottle
do501 cathode polishing paper
polishing paper, dedicated to clean do500 do electrode cathode, size: 2 / group.
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


ph6.86 buffer


ph7.00 buffer


ph9.18 buffer


ph10.01 buffer


electrode soaking
ph(orp)combination electrode soaking solution
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
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