pH Analyser - Features

	Microprocessor based
	User friendly, menu driven
	Measures directly pH, EMF, Temperature one at a time
	Programmable calibration upto 3 points for pH with memory back-up
	Useful for Potentiometric Titrations and ORP / Redox measurements
	Automatic / Manual Temperature compensation
	Accurate & highly stable
	Elegantly styled, small laboratory version

For analysis of pH & Salinity in Water (Drinking, Agriculture, Aquaculture, Domestic and Industrial process & waste, Pollution testing & treatment plants) and Ionic concentration of various elements in water & variety of aqueous & non-aqueous solutions (used in various industrial processes)

Description

This pH Analyser LI 612 is the most competitively priced general purpose Microprocessor based pH Meter with its panel designed for most convenient position for use.

Potential which is a function of the free hydrogen ion activity is measured by Glass pH Electrode in conjunction with Reference Electrode. The development voltage in relation with pH, is calibrated according to isopotential of pH sensitive electrode.Usable also for Potentiometric titrations and Oxidation-Reduction Potential (ORP or REDOX) & Ion Selective Electrode measurement.

The instrument operates on the principle of determination of (H⁺) ion concentration in logarithmic variation in linear relation to the potential generated at the glass membrance according to Nernst Equation

Specification

Parameters	pH		EMF in mV	Temp. in °C
Range	0 to 14		±1999.9	0 to 100
Accuracy	± 0.001		± 0.1	± 0.5
Resolution	0.001		0.1	0.1
Repeatability	±0.001		± 0.1	± 0.1
Input
Sensor	CE/GE/RE	CE/GE & RE		Thermo-probe
Impedance @ 25°C	>1013	>1013		__
Receptacle	BNC, Banana	BNC, Banana		Banana
Temp. Comp.	0 to 100°C A/M	__		__
Readout		16 x 2 Dot Matrix panel 2.95 x 4.35 mm size characters
Readability		± 1 count
Power requirement		230V ± 10%, 50Hz, 1 , Max. 6 VA
Physical Dimensions
Size(WxDxH) in mm		280 x 215 x 125(1)
Weight in Kg		Approx. 3
Accessories supplied
With instrument		Electrode stand with holding clamp, Buffer tablets, Sample containers.
At Extra cost		Mains operated electro-magnetic Stirrer GI 631 with Electrode stand & Holding clamp and Stirring capsules; ISE (CI) & RE, CEs & REs; GE, Metallic Platinum & Silver and Calomel REs for end point detection in titration.
(1) Excluding 300 mm height attachable electrode stand of 0.1 Kg weight.
ISE: Ion Selective Electrode CE: Combined pH Electrode GE: Glass pH Electrode RE: Reference Electrode A : Automatic M : Manual RU : Relative Units