DC20H

Two-channel temperature controller

"DC=Double Controller" is in fact two temperature controllers placed in one housing with the possibility of any configuration of inputs and outputs and linking both controllers. The device has 2 inputs and 2 control outputs that can operate in heating or cooling mode. Wall mounting in a hermetic housing.

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Entry:

2 NTC temperature sensors 5kOhm at 25°C

digital input (standard open or closed)

Measurement range:

-50 ... + 150°C

Measurement Accuracy:

+/- 0.5°C

Sampling period:

330 ms

Indication resolution:

0.1°C over the entire range

Setting resolution:

0.1°C over the entire range

Display:

LED, 4 digits 14mm high with graphic icons

Adjustment method:

ON-OFF with hysteresis

Adjustment Accuracy:

adjustable in the range of 0.1 ... 20.0°C

Control outputs:

1 relay 20A 4.5kW, durability 100 thousand. cycles 1 relay 8A 1.5kW, durability 100 thousand. cycles

Additional features:

- mathematical functions (difference, average measurement) - selection of the temperature channel for reading - sound signaling of alarm states - possibility of linking both measurement outputs (linking their operation)

Installation:

wall-mounted hermetic housing

Degree and protection class:

IP65 /II

Power:

230VAC +/- 15% or 12VAC/DC or 24AC/DC

Power consumption:

3VA max

Working conditions:

-5 ... 60°C; 0 ... 85% RH (non-condensing)

Storage conditions:

-40 ... 85°C; 0 ... 85% RH (non-condensing)

DC-20, short for "double controller", is in fact two temperature REGULATORS placed in one housing with the possibility of any configuration of inputs and outputs and linking both regulators. The device has 2 inputs and 2 control outputs that can operate in HEATINGor COOLINGmode, and the measurement is taken from the T1 or T2 sensor, or from both sensors at the same time.

Thanks to mathematical functions, the measurement from two sensors can be calculated as the difference [T2-T1] (used in systems with a solar collector) or the average [T1+T2]/2.

  • 2 REGULATORS in one housing
  • 2 measurement inputs
  • 2 control outputs
  • Displaying T1 and T2 alternately
  • Math functions (average, differential)
  • Possibility to connect REGULATORS with each other
  • Digital input for manual operation or signal. failure
  • Built-in beeper (buzzer)
  • 2 temperature sensors included

Universal regulator designed to control the temperature in heating systems:

  • electric heaters, stoves
  • heating cables, anti-icing systems
  • incubators, terrariums, aquariums
  • boilers, heaters, etc.
  • CH and HUW pumps
  • solar panels
  • fireplaces with a water jacket
  • actuators with 2, 3, 4-way valve
  • car parking heater (webasto)

and cooling:

  • refrigerators, freezers, refrigerated counters
  • fans, coolers
  • car generators (12V or 24V version), etc.

Technical data:

Entry:

  1. two NTC 5kOhm temperature sensors at 25°C
  2. digital input, alarm
  • Measuring range: -50...+150°C
  • Measurement accuracy: +/-0.5°C
  • Sampling period: 330ms
  • Indication resolution: 0.1°C over the entire range
  • Setting resolution: 0.1°C over the entire range
  • Display: LED, 4 digits 14mm high with graphic icons
  • Regulation method: ON-OFF with hysteresis
  • Regulation accuracy: set in the range of 0.1...20.0°C

Exit

  • two regular exits
  1. one 20A relay, durability 100 thousand. cycles
  2. for a resistive load of 3500W
  3. for inductive load: 1500W
  4. second relay 8A, durability 100 thousand. cycles
  5. for a resistive load of 1800W
  6. for inductive load: 400W
  • Mounting: wall-mounted
  • Degree and protection class: IP65 /II
  • Power supply: 230VAC +/-15% or 12VAC/DC or 24AC/DC
  • Power consumption: max 3VA
  • Operating conditions: -5...60°C; 0...85%RH (non-condensing)
  • Storage conditions: -40...85°C; 0...85%RH (non-condensing)
  • Equipment: two NTC temperature sensors 6x50mm, 2m cable

Examples of device control schemes using the DC20 regulator.

  1. The system of precise control of the incubator chamberand maintaining a uniform temperature.
  2. Solar collector and boiler circulation pumpcontrol system.
  3. Fireplace control system with a water jacket.
  4. Fireplace control system and fireplace circulation pump.
  5. Heater control system with external alarm.
  6. Control system for two heatersindependently.
  7. Control system for two heaters with two temperature settings(heating/additional heating)
  8. Control system for the circulation pump of the hot utility water circuit and the central heating pump.

Akcesoria

NTC 5k

range: -40 .. + 105 ° C

item: NTC 5kΩ

dimensions: 6x50mm

cable: 2m, 5m, 10m, PVC, 2 cores

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