Control dynamics presents a ph meter with latest technological advancements. It has a very high stability, reproducibility and a continuous duty cycle. This laboratory ph meter incorporates an advanced c-mos fet input operational amplifier and modular construction. Its relative accuracy is of â±0.01 ph unit or â±1 mv based on a low point calibration, repeatability of â± 0.01 ph unit or â± mv and a stability [drift/24 hrs] of less than 0.01 ph. It provides a digital led [model apx 175 e] and lcd [model apx 175 c] display of ph 0.000 to ph 14.00 in 0.01 ph unit or milli volts from 0 to â± 1999 to nearest 1 mv. Automatically indicated on the digital display are decimal point, ph/mv mode and mv polarity. The front panel has following controls: [a.] push button controls to select - standby/read position, ph/mv measurements and manual/automatic temperature compensation; and [b.] dial controls - temperature compensation control to read from10â°c to 130â°c; slope control for correcting electrode slope; and asymmetry control - adjustable span â± 1 ph by a 10-turn potentiometer, in steps of 0.01 ph.
