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P171 - LINE OPERATED PH METER - $293.55
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A truly compact line operated 5.5" pH meter, designed for trouble free routine pH testing. Full 0 to 14 pH scale and ±700 mV scale are especially useful in schools and quality control labs. All controls are conveniently located on the front panel. Solid state design and a Teflon insulated input circuit assure accurate measurements under the most severe conditions including high humidity environments.
    Input current of 2 picoamperes makes possible the use of almost any electrochemical electrode. Electrode impedance may be as high as 1,000 megohms without producing significant error. The ±700 mV scale is excellent for redox and other electrochemical measurements. Comes complete with combination electrode, electrode filling solution, electrode stand and instruction manual.
SPECIFICATIONS

P170 - LINE OPERATED PH METER - $310.00
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This meter is 0 to 14 pH meter with a 2 pH expanded scale and millivolt ranges. The 5.5" taut-band meter has a mirrored scale which eliminates parallox problems and is readable to 0.01 pH or 2 mV. The ±mV ranges are switchable with either plus or minus upscale. Temperature compensation is from 0 to 100°C and a 10-turn calibration control enable the expanded scale to be set to any 2 pH range without switching. Input current is 2 picoamperes. Millivolt scales are excellent for redox or specific ion measurements and a two-decade log scale is provided for selective ion electrodes.
    Comes complete with recorder output and -10 microampere polarizing current for Karl Fischer titrations. Output is ±7.00 pH. And glass pH combination electrode, electrode filling solution, electrode stand and holder, BNC shorting cap and manual.

SPECIFICATIONS:
ACCURACY: 0.05 pH on the 0 to 14 scale when within 2 pH of a buffer solution. 0.01 pH on the pH expanded scale
RANGES: 0 to 14 pH scale with 0.1 divisions, 0 to 2 pH expanded scale with 0.02 pH divisions, ±1400 mV scale with 10 mV divisions. ±200 mV expanded scale with 2 mV divisions
DISPLAY: 5.5" tautband meter
INPUT CURRENT: 2 picoamperes max
TEMPERATURE COMPENSATION: 0 to 100°C in 2° divisions
CALIBRATION: Controls, 10 turn potentiometer
pH ELECTRODE CONNECTOR: Teflon insulated BNC. Reference electrode connector: Pin jack
POWER REQUIREMENTS: 115VAC, 5 watts, 3 wire power cord
SIZE: 7"Wx7"Dx8"H. Weight: 3.6 lbs.
CASE: Heavy gauge aluminum with baked enamel finish.

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