Cryogenic Temperature Controller / Selection Guide

Cryogenic Temperature ControllersSelection GuideLOT-QuantumDesign Europe. For your local contact click at: www.lot-qd.comE-mail: magnetometry@lot-qd.comModel 22C Model 24C Model 26Two inputs, four control loops, general purpose controllerFour inputs, four control loops. Optimized for ultra-low temperature.Four inputs, high output power.Sensor inputs 2 4 4Temperature range 300mK to 1020K <200mK to 1500K 500mK to 1500KExcitation current 2.5mA to 10nA 15mA to 50nA 2.5mA to 100nAConstant-voltage excitation levels 10mV, 3.0mV, 1.0mV AC 10mV, 3.0mV, 1.0mV, 300µV AC 10mV ACSupported sensorsSilicon diode 1.4 to 475KRuthenium oxide 300mK to 273K <200mK to 273K 500mK to 273KPlatinum RTD 14 to 1020KCernox™ 300mK to 420K <200mK to 420K 500mK to 420KRhodium-Iron 1.4 to 800KGermanium 500mK to 100KCarbon glass™ 1.0K to 325KGaAlAs diode 25K to 325KThermocouple Option, >1.4K Option, >1.4K N/ACalibration Built-in curves for most industry standard sensors plus additional user supplied curves.Curves Interpolation is performed using a Cubic Spline algorithm for highest possible accuracy.User calibration curves 8 x 200 entries 8 x 200 entries 8 x 200 entriesControl loops 4 4 3Output type Linear, constant currentLoop 1 heater 50W/25W 50O/25OThree decade ranges50W/25W 50O/25OThree decade ranges100W Four rangesLoop 2 heater 25/2.5 Watt, 50O 25/2.5 Watt, 50O 50 Watt, Three rangesNon-powered loops 2 2 1Control modes PID, table, rampOutput resolution 1.0 ppm (20 bits) 1.0 ppm (20 bits) 5.0 ppm (16 bits)Update rate 15/SPID tables (PID zones) 6 x 16 Auto input channel selectAutotuning yesCryogenic Temperature ControllersSelection GuideLOT-QuantumDesign Europe. For your local contact click at: www.lot-qd.comE-mail: magnetometry@lot-qd.comModel 22C Model 24C Model 26Two inputs, four control loops, general purpose controllerFour inputs, four control loops. Optimized for ultra-low temperature.Four inputs, high output power.Warm-up function no no yesData logging no yes yesInterfaces Ethernet yesEthernet protocols HTTP: Embedded Web server. SMTP: E-mail. UDP and TCP: ASCII command language remote control.IEEE-488.2 yes optional optionalRS-232 - yes -USB 2.0 yes optional yesAlarms 4 - LED and audioRelay outputs 2 (125V @ 10A)User InterfaceFront panel display 240x64 Graphics TFT-LCD with LED backlightNumber of channels displayed 2 4 4Keypad 21 key silicon rubber