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SX725 Portable pH/Dissolved Oxygen Meter

Introduction ● 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. ●

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Detailed Product Description

Introduction

● 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.

Specifications

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

Standard Kit Includes

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