Temperature Controllers CTC100 — Cryogenic temperature controller CTC100 Temperature Controller • 4 temperature sensor inputs • 2 powered & 4 analog voltage outputs • Up to 6 feedback control loops • 4 analog & 8 digital I/O channels • Graphical touchscreen display • Data logging on removable flash media • User programs (macros) • USB, Ethernet, RS-232 & GPIB (opt.) Introducing the new CTC100 Cryogenic Temperature Controller — a high performance instrument that can monitor and control temperatures with millikelvin resolution. The CTC100 Cryogenic Temperature Controller is configured to suit a wide range of research and industrial applications. The system consists of four sensor inputs, two powered and four analog voltage outputs, and up to six feedback control loops. Four general purpose analog and eight digital I/Os are available, along with autotuning functions for setting PID parameters automatically. Sensor Inputs The CTC100 offers four temperature inputs that can read RTDs, thermistors, and diodes. Each temperature input channel has its own 24-bit ADC with eleven input ranges, and is equipped with its own independent excitation current source. Standard calibration curves for a variety of sensors are included, and custom calibration curves of up to 200 points each can be entered. Each sensor input has high and low level or rate-of-change alarms. Sensor inputs can be lowpass-filtered to reduce noise, and/or differenced with another channel. Stanford Research Systems

CTC100 Cryogenic Temperature Controller Numeric and Graphical Display The CTC100’s color LCD display can show any combination of temperature measurements and heater outputs on graphs or numeric displays. Up to eight channels can be plotted either on a single graph with a common Y axis, or on separate graphs with independent Y axes. Touchscreen operation makes the instrument versatile and easy to use. Channel setup menu Powered and Unpowered Outputs The CTC100 has two heater outputs that can each deliver up to 100 W of power to a 25 Ω heater. In addition, four analog voltage I/O channels can be...

CTC100 Cryogenic Temperature Controller Computer Communications Each of the CTC100’s front-panel controls has a corresponding text command that can be sent over USB, Ethernet, and either RS-232 or an optional GPIB interface. Temperature Controller When the USB interface is used, the CTC100 appears on the computer as a standard COM port and can be controlled by any software that is compatible with an RS-232 port. Select menu User Programs User programs (macros), consisting of one or more remote commands, can be uploaded to the CTC100. This is done by either sending them through one of the communications...

Output resolution 16 bit Accuracy ±1 mA (2 A range) ±0.02 mA (0.2 A range) ±0.002 mA (0.02 A range) Noise (rms) (25 Ω load, DC to 10 Hz) 5 µA (2 A range) 0.5 µA (0.2 A range) 0.05 µA (0.02 A range) Diodes, Thermistors and RTD inputs Inputs Socket Four inputs for 2-wire or 4-wire thermistor, diode, or RTD Two DB9 (female) Input Range Excitation Current Initial Accuracy Diodes 0 to 2.5 V 10 µA 10 µV + 0.01 % of rdg RTDs 0 to 10 Ω 3 mA ±0.005 Ω 0 to 30 Ω 3 mA ±0.005 Ω 0 to 100 Ω 2 mA ±0.008 Ω 0 to 300 Ω 1 mA ±0.015 Ω 0 to 1 kΩ 500 µA ±0.05 Ω 0 to 3 kΩ 200 µA ±0.1 Ω 0 to 10 kΩ 50 µA ±0.25 Ω 0 to...