PHS-W series is an easy-use basic pH meter designed for daily testing and controls are required. This series pH meter includes model  PHS-25CW,  PHS-3CW  and  PHS-3BW, it widely used for water quality research, industry and education applications.

　

Automatic Calibration:
The meters is capable of calibrating up to 3 points using USA or NIST pH standard buffer. Press  the CAL key to enter calibration mode and immerse pH sensor into indicated calibration solutions,press ENTER key and meter is automatically calibrated.

 

Auto-Buffer Recognition:
During calibration, if the calibration solution does not match the meter’s indicated value, an ERROR message is displayed. After calibration,  the percentage slope of the electrode is displayed before the meter returns  to measurement  mode. Per the electrode slopes,  you can decides whether to replace the pH electrode.

　

Automatic or Manual Temperature Compensation:

 The meters provides manual or automatic temperature compensation mode for optimum accuracy under variable temperature conditions.

　

Fluid Resistant Housing and Swivel Electrode Holder:

The integrated plastic housing and keypad is sealed to protect against accidental spills. The electrode holder arm is rapidly switched to both sides and swivels and articulates for convenient use and positioning.

 

Accessories:

Glass pH Electrode, Temperature Probe (Only for PHS-3BW)

Standard pH Buffers (pH4.01, 7.00, 10.01)

9V/350mA Power Adapters

 

Specifications:

 

Model	PHS-25CW	PHS-3CW	PHS-3BW
pH Range	0.00~14.00pH	0.00~14.00pH	0.00~14.00pH
pH Accuracy	±0.05pH	±0.01pH	±0.01pH
mV Range	-1999~1999mV	-1999~1999mV	-1999~1999mV
mV Accuracy	±10mV	±1mV	±1mV
Temperature Range	---	---	0~100°C
Temperature Accuracy	---	---	±1°C
Temperature Compensation	0~100°C, Manual	0~100°C, Manual	0~100°C, Automatic or Manual
Calibration Points	2 points
Calibration Solutions	NIST (pH4.01/6.86/9.18), USA (pH4.01/7.00/10.01)
Power Requirements	DC9V, using AC adapters, 220VAC/50Hz
Dimensions	210(L)×205(W)×65(H)mm
Weight	1.7kg

 

Tsingtao Toky Insturments Co.,Ltd is one of hi-tech factory specialized in the production of instruments and meters,all of our Products are sold to europe, japan, usa, the middle east countries and regions.
Follow the innovation of the world, we will continue to seek progress in science and technology for development purposes, to meet customer demands for better and more cost-effective products.
In future, Toky Instruments will do everything to develop products meeting the highest technical requirements. TUOKO sincerely welcomes its friends to cooperate with us for the further achievements.
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