Phone: 253-927-6186
 Email: sales@hotektech.com

HD 4045 Digital LED ON/OFF temperature regulator 48x78. Pt100 sensor. Range -50° C…+800° C.
Resolution 1° C. Hysteresis 1...20° C. Relay 5A/220V resistive. Power supply 24Vac/dc,
on request 110…230Vac/dc. Without probe.

Temperature regulator, controller

Model  Description 
HD4045  Digital LED display temperature regulator

This is a temperature regulator, controller with relay ON/OFF output.
The setting of the intervention temperature (set point) is carried out by pressing the button on the left
of the front panel of the instrument and turning the knob on the right until the temperature at which the
relay contact is to open is shown on the display.
Intervention hysteresis may be adjusted with a trimmer at the rear of the instrument.

The temperature sensor is a PT 100.
If it is connected with 2 wires with a section of 1 mm2 , a reading in excess of 0.06° C/m is obtained.
In order to cut down error a three-wire connection is advised, with the third wire connected to terminal 2.
The thermostat may be used either for heating or for cooling, simply by moving the jumper at the rear of the
instrument. When the jumper is in HEATING position, the relay is energized if the probe temperature is
lower than the set temperature; when the jumper is in COOLING position, the relay is energized if the
probe temperature is higher than the set temperature.

Using range: -50C ... +800° C.
Resolution: 1 ° C.
Display: LED, height 12.7 mm.
Precision: 1° C ± 0.3% of reading + probe tolerance.
PT 100 Connection: with two or three wires
Power supply: 24V/3VA.
Outputs: relay contact 5A/22OVAC. resistive.
Hysteresis: 0,1 ... 5° C.
Working temperature: -5 ... +45° C.
Dimensions: front panel 78 x 48 mm instrument
body 72 x 42 x 78 mm



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Company
Hotek Technologies, Inc
tel: 253-927-6186
sales@hotektech.com
services@hotektech.com
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