Omega Products CYC325 User Manual

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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

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, and Rox

Control

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Extended Warranty

Program

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

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

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

river; consult factory

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.

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

10 mø 2 mø ±0.004ø ±4 mø

500ø ±0.01%

of rdg

PTC RTD Positive 0 to 1 mA

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%

of rdg

Thermocouple Positive ±50 mV NA 1 µV 20 µV ±1 µV ±0.8 µV

±0.05%

of rdg

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

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