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Dual Channel Autotune
Temperature Controllers
CYC325 Series
Starts at
$
3440
⻬ Operates Down to 1.2 K with
Appropriate Sensors
⻬ 2 Sensor Inputs
⻬ Supports Diode, RTD, and
Thermocouple Sensors
⻬ Sensor Excitation (Current Reversal
Eliminates Thermal EMF Errors for
Resistance Sensors)
⻬ 2 Autotuning Control Loops: 25 and
2 W Max
⻬ Control Loop 2: Variable Vdc source
from 0 to 10 V Max
⻬ IEEE-488 and RS232C Interfaces
The CY325 Series dual-channel temperature controller
is capable of supporting nearly any diode, RTD, or
thermocouple temperature sensor. Two independent
PID control loops with heater outputs of 25 and 2 W
are configured to drive either a 50 or 25 Ω load for
optimal control flexibility. Designed with ease of use,
functionality, and value in mind, the CYC325 Series is
ideal for general-purpose laboratory and industrial
temperature measurement and control applications.
CYC325-T1, $3560, shown smaller than actual size.
Specifications
Thermometry
Number of Inputs: 2
Input Configuration: Each input is factory configured for
either diode/RTD or thermocouple
Isolation: Sensor inputs optically isolated from other circuits
but not each other
A/D Resolution: 24-bit
Input Accuracy: Sensor dependent, refer to input
specifications table
Measurement Resolution: Sensor dependent, refer to input
specifications table
Max Update Rate: 10 rdg/s on each input (except 5 rdg/s on
input A when configured as thermocouple)
Filter: Averages 2 to 64 input readings
Sensor Input Configuration Diode/RTD:
Measurement Type: 4-lead differential
Excitation: Constant current with current reversal for RTDs
Supported Sensors: Diodes, silicon, GaAlAs; RTDs,
100 Ω Platinum, 1000 Ω Platinum, germanium,
carbon-glass, Cernox
Standard Curves: CY7 and CY670, PT-100, PT-1000,
RX-102A, RX-202A
Input Connector: 6-pin DIN
Thermocouple:
Measurement: 2-lead, room temperature, compensated
Excitation: N/A
Supported Sensors: Most thermocouple types
Standard Curves: Type E, Type K, Type T,
AuFe 0.07% vs Cr, AuFe 0.03% vs Cr
Input Connector: Ceramic isothermal block
T-11
TM
, and Rox
TM
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Control
Extended Warranty
Program
SM
Control Loops: 2
Control Type: Closed loop digital PID with manual heater
output or open loop
Tuning: Autotune (1 loop at a time), PID, PID zones
Control Stability: Sensor dependent, see input
pecification table
s
PID Control Settings:
Proportional (Gain): 0 to 1000 with 0.1 setting resolution
Integral (Reset): 1 to 1000 (1000/s) with 0.1 setting
resolution
Derivative (Rate): 1 to 200% with 1% resolution
Manual Output: 0 to 100% with 0.01% setting resolution
Zone Control: 10 temperature zones with P, I, D, manual
heater out, and heater range
Setpoint Ramping: 0.1 K/min to 100 K/min
Safety Limits: Curve temperature, power up heater off,
short circuit protection
Front Panel:
Display: 2-line, 20-character, liquid crystal display with
5.5 mm (0.216") character height
Number of Reading Displays: 1 to 4
Display Units: K, °C, V, mV,
Reading Source: Temperature, sensor units
Display Update Rate: 2 rdg/s
Temp Display Resolution: 0.001° from
0 to 99.999°, 0.01° from 100 to 999.99°, 0.1° above 1000°
Sensor Units Display Resolution: Sensor dependent;
to 5 digits
Other Displays: Setpoint, heater range, and heater
Heater Output Display:
Numeric display in percent of full scale
or power or current
f
Heater Output Resolution: 1%
Display Annunciators: Control input,
remote, autotune
Keypad: 20-key membrane, numeric and specific functions
Front Panel Features: Front panel curve entry, keypad
lock-out
Interface
IEEE-488 Interface Features: SH1, AH1, T5, L4, SR1, RL1,
PP0, DC1, DT0, C0, E1
Reading Rate: To 10 rdg/s on each input
oftware Support: LabVIEW
S
TM
river; consult factory
d
for availability
Serial Interface:
Electrical Format: RS232C
Baud Rates: 9600, 19200, 38400, 57600
Connector: 9-pin D-style, DTE configuration
Reading Rate: To 10 rdg/s, each input
General
Ambient Temperature: 15 to 35°C (59 to 95°F) at rated
accuracy, 5 to 40°C (41 to 104°F) at reduced accuracy
Power Requirement: Standard 120 Vac, optional 240 Vac,
6%, -10%, 50 or 60 Hz, 85 VA
Dimensions: 89 H x 216 W x 368 mm D
(3.5 x 8.5 x 14.5"), half rack
Weight: 4.00 kg (8.82 lb)
Approval: CE mark
output; user selected
Setpoint Setting Resolution: Same as display resolution
(actual resolution is sensor dependent)
Input Specifications
OMEGACARESMextended warranty program
is available for models shown on this page.
Ask your sales representative for full details
when placing an order. OMEGACARE
covers parts, labor and equivalent loaners.
SM
Sensor Electronic Electronic
Temp Input Excitation Display Measurement Accuracy Control
Coefficient Range Current Resolution Resolution (at 25°C) Stability
Diode Negative 0 to 10 µA 100 µV 0.4 µV ±80 µV
2.5 V ±0.05%
2,3
±0.005% ±20 µV
of rdg
Diode Negative 0 to 10 µA 100 µV 10 µV ±80 µV
7.5 V ±0.05%
2,3
±0.001% ±40 µV
of rdg
PTC RTD Positive 0 to 1 mA
4
10 mø 2 mø ±0.004ø ±4 mø
500ø ±0.01%
of rdg
PTC RTD Positive 0 to 1 mA
4
100 mø 20 mø ±0.004ø ±40 mø
5000ø ±0.02%
of rdg
NTC RTD Negative 0 to 10 µA 100 mø 40 mø ±0.1ø ±80 mø
7500ø ±0.05% ±0.04%
of rdg
Thermocouple Positive ±25 mV N/A 1 µV 0.4 µV ±1 µV ±0.8 µV
±0.05%
5
of rdg
Thermocouple Positive ±50 mV NA 1 µV 20 µV ±1 µV ±0.8 µV
±0.05%
5
of rdg
1
1 Control stability of the electronics only, in ideal thermal system ø = diameter
2 Current source error has negligible effect on measurement accuracy
3 Diode input excitation can be set to 1 mA
4 Current source error is removed during calibration
5 Accuracy specification does not include errors from room temperature compensation
T
T-12
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CYC325-T1 rear view, $3560,
shown smaller than actual size.
1 Loop 1 heater output
2 Serial (RS232C) I/O (DTE)
3 Line input assembly
4 Loop 2 heater output
5 Sensor input connectors
6 IEEE-488 interface
AVAILABLE FOR FAST DELIVERY!
To Order (Specify Model Number)
Model No. Price Description
CYC325 $3440 2 diode/RTD inputs
CYC325-T1 3560 1 diode/RTD, 1 thermocouple input
CYC325-T2 3675 2 thermocouple inputs
Accessories
Model No. Price Description
CYC-6201 $168 1 m (3.3' long) IEEE-488 (GPIB) computer interface cable assembly
CYC-CAL-325-CERT 325 Instrument recalibration with certificate, no points
CYC-CAL-325-DATA 488 Instrument recalibration with certificate and data
CYC-RM-1/2 168 Rack mount kit for mounting one 1⁄2 rack temperature controller in
482.60 mm (19") rack, 90 mm (3.5") high
CYC-RM-2 168 Rack mount kit for mounting two 1⁄2 rack temperature controllers in
482.60 mm (19") rack, 135 mm (5.25") high
CYC-106-009 10 Heater output connector, dual banana jack
CYC-106-233 13 6-pin male input connector
CYC-106-735 17 Terminal block, 2-pin
MA-2001 65 Reference Book: Semiconductor-Laser Physics
Comes complete with heater output connector (dual banana jack), sensor input mating connector (6-pin DIN plugs), terminal block
(2-pin), power cord and operator’s manual.
Add suffix “-240” for 240 Vac power supply, no additional cost.
Ordering Example: CYC325, 2 inputs silicon diode/RTD controller, $3440.
T-13
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