HEASTERN Industries has announced a new unique head-mounting loop-powered (4-20 mA output) transmitter for pH electrodes with precise temperature compensation. The design (hockey puck style) will allow direct mounting into a standard IP65 (thermocouple style) head assembly.
All pH electrodes, being high impedance devices, produce a millivolt (mV) output signal, proportional to the measured pH. This signal (mV) is not ideal for many applications (such as process control on effluent run offmonitoring, etc.), where the pH sensor is mounted quite some distance from the final monitoring/control instruments.
...more
HEASTERN Industries has announced an extensive new range of thin film platinum resistance temperature detectors (PT100s) made in Europe.
There are essentially three basic forms of platinum RTD construction;
Thin film on a ceramic,
Ceramic wire wound tubular, or
Glass wire wound tubular.
Platinum is used in these RTD temperature sensors, as it is best suited for precise temperature measurement in preference to other metals and alloys, due to its chemical inertness.
...more