Milwaukee Ph Tester

Specifications QJ series ph meter is an easy-use basic pH meter designed for daily

testing and controls are required.

Introduction of pH meter An electrode interposed by a silver ion-containing salt solution in a silver wires are made in the conductor and the solution at the interface, due to the different concentration of metal salt solution and the two phase composition of silver ions to form charged ions process, and a certain potential difference. The loss of electrons into the silver ion solution. When no current is applied to the outer anti-charging, that is, no current, then the process will eventually reach an equilibrium. In this equilibrium state is called the presence of voltage or the half-cell potential of the electrode potential. This electrode (as described above) from the metal ion solution containing metal composition of the electrode is called a first type   Automatic Calibration: pH measurements are usually two kinds of colorimetry (pH strips or cuvettes) and electrode. Colorimetric calibration of course not, but it must be calibrated electrode method, because electrode pH measurement is the unknown solution with a known value of the standard solution pHs comparative measurement in measuring cell, which is "operational definition electrode pH measurement "decision.   Auto-Buffer Recognition: Although many types of pH meter, but its calibration methods are used in two-point calibration method, choose two standard buffer: one is pH7 buffer solution, the second is pH9 standard buffer or pH4 standard buffer. First with standard buffer pH7 locate the electrical meter, and then choose the second criteria based on measured pH buffer solution. If the test solution is acidic, the selection criteria pH4 buffer; If the test solution is alkaline, the selection pH9 standard buffer. Specification of Milwaukee Ph Tester  

Model	QJ-666A	QJ-666B	QJ-666C
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

  pH meter is an easy-use benchtop meter designed for daily testing and controls.   Features: Selectable pH buffer standards and temperature units. Automatically calculates and shows electrode slope after calibration. Automatic Temperature Compensation ensures highly accurate measurement over the entire pH range. Automatic endpoint function freezes the stable measured values for easy reading and recording data. Manual temperature calibration provides accurate temperature value.    

Model	QI-666D
pH Range	-1.00~15.00pH
pH Accuracy	±0.01pH
mV Range	-1000~1000mV
mV Accuracy	±1mV
Calibration Points	1, 2 or 3 points
Calibration Solutions	USA (pH4.01, 7.00, 10.01) or NIST (pH4.01, 6.86, 9.18)
Temperature Range	0~105°C, 32~221°F
Temperature Accuracy	±1°C
Temperature Calibration	Manual
Temperature Compensation	0~100°C, 32~212°F, Automatic or Manual
Auto-Off	Manual or Automatic (180 minutes after last key pressed)
Hold Function	Manual or Automatic
Reset Function	Yes
Connector	BNC
LCD Display	Custom Dual-Display LCD (135×75mm)
Power Requirements	DC9V, using AC adapters, 220VAC/50Hz
Dimensions	210(L)×205(W)×75(H)mm
Weight	1.2kg

  Please feel free to contact if you need any further information about Milwaukee Ph Tester