The PTC-10 and PTC-20 temperature control systems are designed for heating and cooling purposes in electrophysiological experiments. The PTC-10 system provides one temperature controller channel plus one thermometer channel, whereas the PTC-20 has two fully independent temperature control channels. Both systems are housed in a 19 inch standard rackmount cabinet with built-in power supply and cooling elements for the power devices. The PTC-10/20 system guarantees low noise operation and has special protection features to prevent the preparation from damage.
The PTC-10/20 systems incorporate two electronic thermometers for small semiconductor sensor (standard is R2252, i.e. the sensor has a resistance of 2252 Ω at 25 °C or optionally PT 100, i.e. 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 short circuit protected, the output power is limited electronically. Maximum output voltage is approximately 15 V, the current is limited to 5 A.
The PTC-10 controller is delivered with a power cord and a user manual.
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
3 1/2 digits, XX.X °C (temperature of SENSOR A or B) or XX.X V (voltage at power output)
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
±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)
control for the output voltage with a linear range from 0 – 100 %
PI (proportional-integral) controller, accuracy typically ±0.2 °C, gain range 10 – 10k, integration time 50 ms – 20 s (logarithmic scale)
0.1 °C at 25 °C
115 / 230V AC, 60 / 50 Hz, fuse 4 / 2A slow
19” rackmount cabinet 19” (483 mm), 10” (250 mm),
3.5” (88 mm)