|
|
Mô tả Sản phẩm
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.
CTC100 Cryogenic 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
- User programs (macros)
- USB, Ethernet, RS232 & GPIB
CTC100 Cryogenic Temperature Controller
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.
Powered and Analog Voltage 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 used to drive heaters with the help of an external amplifier.
PID Feedback Control
With
up to six feedback control loops available, the CTC100 can provide
precise temperature control of each of its heater outputs by continually
adjusting the heater power. Any of the CTC100’s channels can be
selected as the input for each feedback loop. Feedback time constants
can be adjusted between 200 ms and 10 hrs.
Up
to ten sets of PID parameters can be stored for each channel. Setpoints
can be ramped at a fixed rate (or with a user program), set from an
analog input.
Analog and Digital I/Os
The
CTC100 comes with four general-purpose ±10 V voltage I/O channels read
by a 24-bit ADC. It also has eight digital I/O channels that can
interact with user programs.
Four
5 A relays can be used for process control. Three virtual channels, not
connected to any physical input, allow calculated values (such as the
difference between two channels, or a value calculated by a user
program) to be displayed, graphed, and logged.
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.
Data Logging
Up
to 4096 readings per channel can be logged to the CTC100’s internal
memory. For longer-term storage, data can be logged to standard USB
memory sticks or hard drives.
Data
logged to USB devices can be transferred to a computer by plugging the
USB device into a PC. Windows applications are included to graph CTC100
log files and to convert them to various ASCII text formats.
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.
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.
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 ports or by saving them as text files on a USB
memory device and then plugging the device into the CTC100. Program
macros can also be entered and edited from the front panel.
Đăng nhận xét