Ultra Sensing Probe; Introduction; Ullage Detection - Honeywell HERMetic UTImeter Gtex Chem IIC Operation And Service Manual

6.2. ULTRA sensing probe

6.2.1.

Introduction

The ULTRA sensing probe consists of a
stainless steel tube terminated by a high-
tech plastic
removed from the tube. The sensing
probe includes an ultrasonic liquid level
sensor, a temperature sensor and a
conductivity electrode. The sensitivity for
ullage and interface measurement is not
adjustable.
measurement is calibrated at the factory
and does
adjustment.
The reaction point is located 4 mm (5/32") from the sensor bottom and identical with the zero-point of the tape graduation.
50489/GTEX Chem IIC/1805
head which cannot be
The temperature
not require subsequent
Air
4 mm
Liquid
Ultrasonic level sensor
6.2.2.

Ullage detection

The ullage detector consists of two
piezoceramic
circuits.
immersed in a non-conductive liquid (oil or
petroleum), the emitted ultrasonic signal is
detected by the receiver, coded and sent
to the instrument unit which activates the
buzzer with the continuous beep.
Reaction point
Figure 7-3
16
plates and
When the sensor
UTImeter Gtex Chem IIC
electronic
head is