npi electronics TC-20 Temperature Control System
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npi electronic TC-20 Temperature Control System

Designed for heating two independent channels in electrophysiological experiments.

npi electronic TC-20 Temperature Control System
Guarantees low noise operation

Special protection features

Prevents the preparation from damage

Built in cooling elements for power devices

This device controls two independent heating channels and is housed in 19" standard cabinet.

Each system incorporates two electronic thermometers for small temperature sensors (standard is R2252, i.e. the sensor has a resistance of 2252 Ohms at 25 °C or optional PT100, i.e. the sensor has a resistance of 100 Ohms at 0 °C), two digital temperature displays (XX.X °C), a set-point control with direct readout (XX.X °C), a PI (proportional-integral) controller with adjustable parameters, an output power control unit and a high-power output stage (DC, continuous operation) for resistive (i.e. heat only) loads with electronic protection circuits.

The power outputs are short circuit protected, the output power is limited electronically. The maximum output voltage is approximately 12 V, the current is limited to 2 A.

The TC-20 controller is delivered with a power cord and a user manual. Sensors must be purchased separately.

Sensor input
Sensor input
For semiconductor 2252 Ohms at 25 °C (standard) or platinum 100 Ohms at 0 °C, accuracy typically 0.1 °C at 25 °C, with electronic protection.
Sensor input (EXT. Mode)
Sensor input (EXT. Mode)
1 mV / °C ALARM and SHUTOFF: disconnects
Power output
Power output
If temperature is below +3 °C (not connected or broken sensor) or above +45 °C (short circuited sensor)
Digital displays
Digital displays
3 1/2 digits, XX.X °C (temperature of SENSOR A or B) or XX.X V (voltage at power output)
Command input
Command input
Analog input, 10 mV / °C, via BNC connector
Set value control
Set value control
Digital control, range 2-45 °C, XX.X °C or 0-100% of output voltage (DIRECT mode)
Temperature output (A, B)
Temperature output (A, B)
Analog outputs, 10 mV / °C, via BNC connector, output impedance: 250 Ohms
Power output
Power output
±15 V / 3 A for each channel, short circuit protected, continuous
DC Limiter
DC Limiter
Control for the output voltage with a linear range from 0 - 100 %
Control
Control
PI (proportional-integral) controller, accuracy typically ±0.2 °C, gain range 10-10k, integration time 50 ms - 20 s (logarithmic scale)
Measuring Accuracy
Measuring Accuracy
0.1 °C at 25 °C
Power requirements:
Power requirements:
115 / 230V AC, 60 / 50 Hz, fuse 4 / 2 A slow
Dimensions
Dimensions
19" rackmount cabinet 19" (483 mm), 10" (250 mm), 3.5" (88 mm)
Practical electrophysiological methods

Electroencephalography and Clinical Neurophysiology

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