- sx725 portable ph/dissolved oxygen meter
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the most cost effective portable ph dissolved oxygen double-parameter meter, suited for industrial and mining factories, power plant, aquaculture and environmental protection field, especially suited in field and on-site.
| ● built-in microprocessor chips, intelligent functions such as automatic calibration, automatic temperature compensation, data storage, function set-up, self-diagnose information, automatic power-off and low voltage display. |
| ● double-parameter meter, equipped with ph electrode and dissolved oxygen electrode, automatic identification of electrode by meter. |
| ● automatic identification of 13 ph standard buffer solutions, three options of standard buffer solutions: europe and america series, nist series and china series. |
| ● able to set ph measurement modes of high purity water and pure water with ammonia. |
| ● measurement mode of dissolved oxygen has the function of automatic temperature compensation, automatic salinity compensation and manual air pressure compensation. |
| ● new polarographic type dissolved oxygen electrode can measure temperature, salinity and dissolved oxygen simultaneously, equipped with special dissolved oxygen electode calibration set, polarization only for 3~5 min. |
| ● meter meets ip57 waterproof rating, equipped with calibration solution and portable case. |
| category | product name | basic features and specifications |
| ph |
measuring range |
（-2.00 ~ 19.99）ph |
|
resolution |
0.1/0.01 ph | |
|
accuracy |
meter:±0.01ph; overall: ±0.02ph | |
|
input current |
≤2×10-12 a | |
|
input impendance |
≥1×1012 ω | |
|
stability |
±0.01 ph/3h | |
| temp. compensation range | （0 ~ 100）℃(automatic) | |
| orp |
measuring range (mv/orp/eh) |
-1999mv ~ 0 ~ 1999mv |
|
resolution |
1mv | |
|
accuracy |
meter:±0.1% fs, overall: ±15mv | |
| dissolved oxygen |
measuring range |
（0 ~ 40.00）mg/l(ppm) （0 ~ 200.0）% |
|
resolution |
0.1/0.01 mg/l(ppm) 1/0.1 % | |
|
accuracy |
meter:±0.10 mg/l, overall:±0.40 mg/l | |
|
response time |
≤30 s（25℃, 90%response） | |
| residual current | ≤0.1 mg/l | |
| temp. compensation range | （0 ~ 45）℃(automatic) | |
| salinity compensation range | （0 ~ 45）ppt(automatic) | |
|
atmospheric pressure compensation range |
（66 ~ 200）kpa (manual) | |
|
automatic calibration |
air saturated by water; water saturated by air | |
|
electrode type |
polarogram type | |
| other technical parameters |
data storage |
200 groups |
| storage content | series number, measuring value measuring unit and temperature, | |
|
power |
two aa batteries (1.5v x2) | |
|
size and weight |
meter：(65×120×31)mm/180g；suitcase： (360×270×76)mm/1.6kg | |
| quality and safety certification | iso9001:2000, ce and cmc | |
| working condition |
environment temperature |
5 ~ 35 ℃（0.01grade） |
|
environmental humidity |
≤85% | |
|
ip rating |
ip57 dustproof and waterproof |
| 1. model sx725 ph / mv / do meter | 1set |
| 2. 201t-s plastic ph/atc three-in-one combined electrode | 1pcs |
| 3. do500 do electrode | 1pcs |
| 4. ph standard buffer solution( ph4.00, ph7.00 and ph10.01/50ml) | 1btl/each |
| 5. do503 membrane cap (do electrode use) | 3个 |
| 6. do502 do electrode inner solution (30ml) | 1pcs |
| 7. cathode polishing paper | 1pcs |
| 8. screw driver | 1pcs |
| 9. spare aa batteries | 2pcs |
| 10. operation manual | 1pcs |
| 11. carrying case | 1unit |
|
accessory category |
description |
specifications |
|
ph combination electrode |
201t-s plastic three-in-one ph electrode |
measure ph and temperature simultaneously, atc, suited for general ph measurement, 8 pin conncetor. |
|
2503dt-s glass three-in-one combintion ph electrode |
atc, suited for ph measurement of solution under low temperature and pure water, 8 pin connector. | |
|
glass flow cell |
match 2503dt-s electrode. | |
|
orp combination electrode |
301pt-s plastic orp combination electrode |
suited for general orp measurement, 8 pin connector. |
|
do electrode |
do500 do electrode |
polargrafic do electrode, suited for application in lab and field, 8 pin connector. |
|
do electrode accessory |
do503 do electrode membrane cap |
combined membrane cap, special for do500 do electrode, specification: 3 units per group. |
|
do502 do electrode electrolyte |
supplement electrolyte, special for do500 do electrode, specification: 30ml/bottle. | |
|
do501 negative electrode polishing paper |
polishing paper，special for cleaning negative electrode of do500 do electrode, specification:2 pcs/group. | |
|
ph buffer |
ph4.00 buffer |
500ml/250ml/50ml（bottle） |
|
ph6.86 buffer |
500ml/250ml/50ml（bottle） | |
|
ph9.18 buffer |
500ml/250ml/50ml（bottle） | |
|
ph7.00 buffer |
500ml/250ml/50ml（bottle） | |
|
ph10.01 buffer |
500ml/250ml/50ml（bottle） | |
|
electrode soaking solution |
ph（orp）combination electrode soaking solution |
500ml/250ml/50ml（bottle） |
|
orp standard solution |
222 mv orp standard solution |
250ml/100ml/50ml（bottle） |
|
portable case |
small portable case（255×210×50）mm |
match single electrode. |
|
big portable case（360×270×76）mm |
match multi- electrode |
