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PHS-W 系列

Benchtop pH/mV meter

PHS-W series is an easy-use basic pH meter designed for daily testing and controls are required.

Automatic Calibration:

The meters are capable of calibrating up to 2 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 the calibration, if the calibration solution does not match meter indicated value, an ERROR indicator will be displayed.

After calibration, the percentage slope of the electrode is displayed before the meter return to pH measurement mode. Per the electrode slopes, you can decide whether to replace the sensor.

Automatic or Manual Temperature Compensation:

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

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

 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 USA (pH4.01, 7.00, 10.01) or NIST (pH4.01, 6.86, 9.18)
   Power Requirements DC9V, using AC adapters, 220VAC/50Hz
   Dimensions 210(L)×205(W)×65(H)mm
   Weight 1.7kg