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ER2000 Electronic Controller

2183

The Clorius ER 2000 electronic controller is used for constant temperature control. It is suitable for all heating and cooling control systems. The controller is primarily intended for marine installations and other industrial applications – such as cooling water and lubricating oil installations, flow temperature control etc. Design The ER 2000 controller is designed for panel mounting. For an easy start-up, it has optimization for the automatic determination of favourable control parameters. The optimization starts when changing the set point or when switching over from manual mode to automatic control. The optimization can be disregarded. For easy operation, it has three keys – two for scrolling or changing values and an enter key. Two digital displays show the process variable and the setpoint. 3 LEDs indicate actuator opens, actuator closes and alarm. The controller can be switched from auto mode to manual mode. In manual mode, the actuator can be opened, closed or stopped in a certain position. Three different alarm settings are possible: Alarm at a deviation from the setpoint SP Alarm at a fixed limit value Alarm at leaving a band around the setpoint SP It can operate either as a three-position or as a two-position controller or analogue (4-20 mA) controller and has an adjustable proportional band, integral action time and derivative action time. Function The temperature input comes via a Pt 100 sensor with a single sensing element. The measured value of the controlled variable is compared with the setpoint value and adjusted via a PI or a PID control structure. The ER 2000 can act as either a heating controller, the actuator closes at rising temperature, or as a cooling controller, the actuator opens at rising temperature. The ER 2000 permits direct reading of the actual temperature value (PV), and it is secured from failure in the measuring circuit, i.e. the controller can be set to give either a closing, an opening, or remain in current position command in case of sensor short circuit or sensor break. The error message Err appears in the LED display PV.

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KP Pressure Switch

5288

The Danfoss KP pressure switches are used for regulating, monitoring and alarm systems in the industry. The KP pressure switches provide automatic limit protection or manual reset limit protection for pressure systems. The KP switches can be used with steam, air, gaseous and liquid media. The pressure switches are fitted with a single-pole changeover switch (SPDT). The position of the switch depends on the setting of the pressure switch and the pressure in the connector. Available types: KP 34 pressure switch KP 35 pressure switch KP 36 pressure switch KP 37 pressure switch KP 44 pressure switch

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KP44 Dual Pressure Switch

5300

The Danfoss KP44 pressure switch is used in refrigeration and air conditioning systems to give protection against excessively low suction pressure or too high discharge pressure. The Danfoss KP44 pressure switch is also used for starting and stopping refrigeration compressors and fans on air-cooled condensers. A KP pressure switch can be connected directly to a single-phase AC motor of up to approx. 2 kW or installed in the control circuit of DC motors and large AC motors. Danfoss KP pressure switches are fitted with a single-pole double-throw (SPDT) switch. The position of the switch is determined by the pressure switch setting and the pressure at the connector. KP pressure switches are available in IP30, IP44 and IP55 enclosures

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ER2000-P Electric Controller

9171

The Clorius ER 2000-P controller is used for constant pressure control. It is suitable for all heating and cooling control systems. The controller is primarily intended for marine installations and other industrial applications. Design The ER 2000-P controller is designed for panel mounting. For an easy start-up, it has optimization for the automatic determination of favourable control parameters. The optimization starts when changing the set point or when switching over from manual mode to automatic control. The optimization can be disregarded. For easy operation, it has three keys – two for scrolling or changing values and an enter key. Two digital displays show the process variable and the setpoint. 3 LEDs indicate actuator opens, actuator closes and alarm. The controller can be switched from auto mode to manual mode. In manual mode, the actuator can be opened, closed or stopped in a certain position. Three different alarm settings are possible: Alarm at a deviation from the setpoint SP Alarm at a fixed limit value Alarm at leaving a band around the setpoint SP It can operate either as a three-position or as a two-position controller or analogue controller (4-20 mA) and has an adjustable proportional band, integral action time and derivative action time. Function The pressure input comes via a 4-20 mA signal. The measured value of the controlled variable is compared with the setpoint value and adjusted via a PI or a PID control structure. The ER 2000-P permits direct reading of the actual temperature value (PV) and it is secured from failure in the measuring circuit, i.e. the controller can be set to give either a closing, an opening or remain in current position command in case of sensor short circuit or sensor break. The error message Err appears in the LED display PV.

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ER3000 Electric Controller

9175

The Clorius ER 3000e electric controller is used for constant temperature control. It is specially designed for large engine jacket cooling water systems where conventional single loop controllers cannot maintain a constant and precise temperature. The ER3000 controller operates with TWO sensor inputs. One Pt 100 sensor is placed at the outlet from the engine and one Pt 100 sensor with a built-in 4-20 mA transmitter is placed at the inlet to the engine. The measured values of the controlled variables are compared with the setpoint value and adjusted via a PI or a PID control structure. Design The ER 3000 controller is designed for panel mounting. For an easy start-up, it has optimization for the automatic determination of favourable control parameters. The optimization starts when changing the set point or when switching over from manual mode to automatic control. The optimization can be disregarded. For easy operation, it has four keys – two for scrolling or changing values, an enter key and a key for choosing manual or automatic control. Two digital displays show the process variable and the setpoint. 7 LEDs indicate alarm, the actuator opens, actuator closes, slave control, setpoint raising/lowering and manual mode. The controller can be switched from auto mode to manual mode. In manual mode, the actuator can be opened, closed or stopped in a certain position. Three different alarm settings are possible: Alarm at a deviation from the setpoint SP Alarm at a fixed limit value Alarm at leaving a band around the setpoint SP The 3 alarm settings include an alarm in case of a sensor fault. It can operate either as a three-position or as a two-position controller and has adjustable proportional band, integral action time and derivative action time.

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KP Thermostat

9384

The Danfoss KP Thermostats are single-pole, double-throw (SPDT) temperature-operated electric switches. They can be connected directly to a single-phase AC motor of up to approx. 2 kW or installed in the control circuit of DC motors and large AC motors. The Danfoss KP Thermostats are used for regulation but can also be seen in safety monitoring systems. The KP thermostats are available with vapour charge or with adsorption charge. With a vapour charge, the differential is minimal. The KP Thermostats with adsorption charge Available types: KP 61 Thermostat KP 62 Thermostat KP 63 Thermostat KP 68 Thermostat KP 69 Thermostat KP 71 Thermostat KP 73 Thermostat KP 75 Thermostat KP 77 Thermostat KP 79 Thermostat KP 81 Thermostat KP 98 Thermostat

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