Why buyers choose it

Full scale to 0.01 pH

0–14 pH continuous, displayed to 0.01 pH on a 3½-digit red LED.
Temperature compensated

Pt-100 probe with automatic compensation from 0 to 100 °C.

Two-point calibration

Manual CAL and SLOPE adjustment against buffer solutions.
Supplied complete

Electrode on 5 m of cable, temperature probe and buffer solutions come with it.

In detail

This is a pH instrument for a process line that needs the reading on a panel and a contact to act on. It reads pH continuously across the full 0–14 scale, shows it to 0.01 pH on a 3½-digit red LED display, and has a relay output.

An electrode's response changes with temperature, so the meter takes a Pt-100 probe and compensates automatically from 0 to 100 °C. The input resistance is 10¹⁴ Ω, the reading is stable to ±0.01 pH after warm-up, and accuracy and repeatability are both given as ±0.01 pH (relative).

Calibration is a manual two-point procedure against buffer solutions, made with the CAL and SLOPE controls on the front, and an over-range indication shows when the reading has left the scale.

It comes as a set: a gel-filled combination pH electrode on 5 m of cable with a BNC connector, the temperature probe, buffer solutions and an instruction manual. The case measures 96 × 96 × 120 mm, and the meter runs from 230 V AC ±10%, 50 Hz.