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CONTROLLER TEMPERATURE REGULATORS
FOR KTY81 PROBES
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HD 4044 Digital LED
ON/OFF temperature regulator 48x78. KTY81 sensor. Range -50°C…+150°C.
Resolution 0,1°C. Hysteresis 0,6...6°C. Interchangeable probes within
±0,8°C. Relay 5A/220V. Power supply 24Vac/dc, on request 110…230Vac/dc.
Without probe.
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Controller temperature regulator thermostat |
| Our
Price: |
Contact us for
pricing |
| Phone:
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253-927-6186
866-318-6186 |
| Fax:
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253-927-6189 |
| email:
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sales@hotektech.com |
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The
HD 4044 Controller temperature regulator
thermostat is an ON/OFF regulator with relay output
(1 exchange
contact 5A/22OV resistive).
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.
Hysteresis may
be adjusted with a trimmer at the
rear of the instrument.
The temperature
sensor is a silicon resistance
(KTY81 A) with a positive temperature
coefficient.
At 25°C the resistance is 1000 ohm.
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As both the resistance and
the temperature coefficient (±0.7%/°C) are considerably higher than those
of a Pt1 00 sensor, the influence of the resistance on the connection cables
is much less than with a Pt100. However, the precision and wide measuring
range are more favorable with Pt100 sensors.
The interchangeability of
KTY81A sensor is ±1.2°C at 25°C. 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.
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| TECHNICAL
DATA
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Measuring range: -50...+150°C
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Resolution: 0.1°C
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Display: LED, height 12.7 mm
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Precision (probe included): ±0.7°C at 25°C, reaching
±13°C at the extremes of the range, interchangeable probes (stricter
tolerances are possible with individual calibrations)
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Connection: with 2 or 3 wires
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Power supply: 12÷24 V / 3VA
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Output: exchange contact 3A/220 VAC resistive
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Hysteresis: 0.6°C... 6°C, 1-turn trimmer at the rear
of the instrument Working temperature: -5...+50°C
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Dimensions: front panel 78 x 48 mm instrument body 72 x
42 x 78 mm
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