Section 1 - General Description
The OMEGA
®
HX93B and HX93BD Series Temperature/Relative Humidity
Transmitters provides a linearized and temperature compensated output signal
of 4 to 20mA, 0 to 1 Vdc, 0 to 5 Vdc or 0 to 10 Vdc depending upon the model
selected for both temperature/relative humidity measurement. The output
signals have been calibrated and scaled –30ºC to 75ºC for temperature and 0
to 100% for relative humidity. The digital temperature and relative humidity
sensor is protected by a stainless steel filter that is easily removed for cleaning.
The NEMA rated polycarbonate enclosure and cable entry connection provides
weathertight protection. Screws are provided for mounting via internal holes
inside the enclosure.
The HX93BD Series has a dual display with backlit to display both Temperature
and Relative Humidity readings. An on-board slide switch allows the user to
change the temperature reading from °C to °F as shown in figure 1-1 below.
Figure 1-1. Transmitter Internal Diagram
Most of the models come with a replaceable sensor probe; the process of
replacing the sensor probe is very simple using an M12 connector. See the
“Maintenance” section for details.
The models with a replaceable Sensor Probe are:
HX93BDC, HX93BDV0, HX93BDV1, HX93BDV2, HX93BDC-RP1, HX93BDV0-
RP1, HX93BDV1-RP1, HX93BDV2-RP1, HX93BC, HX93BV0, HX93BV1,
HX93BV2, HX93BC-RP1, HX93BV0-RP1, HX93BV1-RP1, HX93BV2-RP1.
The models without a replaceable sensor probe are:
HX93BDC- D, HX93BDV0-D, HX93BDV1-D, HX93BDV2-D, HX93BC-D,
HX93BV0-D, HX93BV1-D, HX93BV2-D.
1-1
General Description
1
LCD DISPLAY
CONNECTOR
DIGITAL SENSOR
CONNECTOR
DEGREE F/
DEGREE C
SELECTION SLIDE
SWITCH (SW1)
8-PIN M12
CONNECTOR
FOR DIGITAL
SENSOR PROBE
EXTERNAL CONNECTION
TERMINAL BLOCK
(TB1)
F
J5
C
1
3
J4
