PTC-10/20 – Temperature Controller

Npi's PTC-10/20 is a single/dual channel temperature controller designed for heating and cooling purposes in electrophysiological investigations.

Overview
Specifications
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Advantages of the PTC-10/20

Temperature regulation in delicate electrophysiological recordings
Efficient heating and cooling with a robust bipolar output
No switching artifacts due to analog control
Absence of electrical noise thanks to linear power supply
Compatibility with a wide range of devices – adjustable feedback speed

Single/Dual Channel Temperature Controller for Peltier Elements

The PTC-10 and PTC-20 temperature control systems are specifically engineered for heating and cooling applications in electrophysiological research. The PTC-10 system features one temperature control channel along with one thermometer channel, while the PTC-20 offers two fully independent temperature control channels. Both systems are enclosed in a standard 19-inch rackmount cabinet, equipped with an integrated power supply and cooling components for the power devices. The PTC-10/20 system ensures low noise operation and includes specialized protection features to safeguard the preparation from damage.

The PTC-10/20 systems are equipped with two electronic thermometers suitable for small semiconductor sensors (the standard is R2252, meaning the sensor has a resistance of 2252 Ω at 25 °C, or optionally PT 100, which is 100 Ω at 0 °C), two digital temperature displays (XX.X °C), a set value control with direct readout (XX.X °C), a PI (proportional-integral) controller with adjustable parameters, an output power control unit, and a high-power bipolar output stage (± 15 V DC, continuous operation) for Peltier elements (i.e., heat/cool operation) or resistive (i.e., heat only) loads with electronic protection circuits. For heat-only applications, the bipolar output can be switched to unipolar operation (+15 V). The power output is protected against short circuits, and the output power is electronically limited. The maximum output voltage is approximately 15 V, with the current limited to 5 A.

The PTC-10/20 controller is supplied with a power cord and a user manual.

Features of the PTC-10:

For heating and cooling
Single control channel
Bipolar DC output ± 15 V, maximum 5 A.
Control via one of two available thermometers.

Features of the PTC-20:

For both heating and cooling purposes
Two separate control channels
Bipolar DC output of ± 15 V, with a maximum of 3 A per channel

Specifications of the PTC-10/20

Sensor input: for semiconductor 2252Ω at 25 °C (standard) or platinum 100Ω at 0 °C, accuracy typically 0.1 °C at 25 °C, with electronic protection

Sensor input (EXT. Mode): 1mV / °C

ALARM and SHUTOFF: disconnects POWER OUTPUT if temperature is below +2 °C (not connected or broken sensor) or above +60 °C (short circuited sensor) , other ranges possible

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: analog input, 10mV / °C, via BNC connector

Set value control: digital control, range: 02.0 °C to 60.0 °C (other ranges possible), XX.X °C or 0-100% of output voltage (DIRECT modes)

Temperature OUTPUT (A, B): analog outputs, 10mV / °C, via BNC connector, output impedance: 250Ω

Power output:

±12 V / 3 A for each channel, short circuit protected, continuous DC (PTC-20)
±15 V / 3.5 A continuous, ±15 V / 5 A peak, short circuit protected, continuous DC (PTC-10)

Limiter: control for the output voltage with a linear range from 0 – 100 %

Control: PI (proportional-integral) controller, accuracy typically ±0.2 °C, gain range 10 – 10k, integration time 50 ms – 20 s (logarithmic scale)

Measuring accuracy: 0.1 °C at 25 °C

Power requirements: 115 / 230V AC, 60 / 50 Hz, fuse 4 / 2A slow

Dimensions: 19” rackmount cabinet 19” (483 mm), 10” (250 mm),

3.5” (88 mm)

Ordering Information

PTC-10 One channel temperature controller, for heating and cooling, use with peltier elements
PTC-20 Two channel temperature controller, for heating and cooling, use with peltier elements
TS-100 Temperature sensor for TC/PTC/MTC systems

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