RT-833, 5908312598596
Operation
Once the temperature rises above the set point Tmin, the fan starts, and its rotational speed will be proportional to the measured temperature and regulator settings:
- for temperature Tmin the rotational speed will be equal to the set minimum speed.
- for temperature Tmin + Δ the rotational speed is 100%.
- for temperature in range Tmin <> Tmin + Δ rotational speed is mapped proportionally in the range from the set minimum speed up to 100%.
The regulator has a relay output that signals too high temperature or damage (no power) to the regulator.
During normal operation, the contact 7-9 is closed. If the measured temperature is higher than the maximum value (Tmin+Δ) for a period of three minutes, the contact is switched off. If the regulator is damaged or the power is off, contacts 7-9 can be used for error signaling.
To avoid the problem with the motor stalling at low speeds, the regulator can start from the maximum speed - the fan starts from the maximum speed and then slows down to a suitable value.
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Dedicated temperature probe [F&F]
designation | RT |
temperature sensor | KTY 81-210 |
dimensions | Ø5; h=20mm |
isolation of sensor | heat shrink |
wire | OMY 2×0,34mm²; l=2,5m |
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designation | RT823 |
temperature sensor | KTY 81-210 |
dimensions | Ø8; h=40mm |
isolation of sensor | steel sleeve |
wire | heat-resist SIHF 2×0,5mm²; l=2,5m |
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Availability date:
Power supply voltage | 12÷24 V DC |
Accuracy of measurement | ±1°C |
Temperature probe | RT/RT2 |
DC load current (7-9) | 6:00 AM |
Contact (load) | separated 1 x NO/NC (10 A) |
Temperature regulation range Tmin | 25÷60°C |
Temperature regulation range? T | 5÷30°C |
Setting the start speed | 0÷80% |
Terminal | pluggable terminal blocks 2,5 mm² |
Tightening torque | 0,4 Nm |
Power consumption waking / working | 0,05 W/0,6 W |
Working temperature | -15 ÷ 50°C |
Dimensions | 1 module (18 mm) |
Assembly | on rail 35 mm |
Ingress Protection Marking | IP20 |