CYC325-Series

Cryogenic Dual Channel Digital Benchtop Temperature Controller

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Operates Down to 1.2 K with Appropriate Sensors
2 Sensor Inputs
Supports Diode, RTD, and Thermocouple Sensors
Sensor Excitation (Current Reversal Eliminates Thermal EMF Errors for Resistance Sensors)

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CYC325-Series

From ^$ 9,877.30

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1 Variations available

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Product Overview

A/D Conversion 24-bit
Accuracy Selectable
Accuracy Detail
PTC RTD (0 to 500 Ω : Range) : ± 0.004 Ω, ± 0.01 % of rdg
PTC RTD (0 to 5000 Ω : Range) : ± 0.004 Ω, ± 0.02 % of rdg
NTC RTD (0 to 7500 Ω : Range) : ± 0.1 Ω, ± 0.04 % of rdg
Thermocouple (± 25 mV) : ± 1 µV,± 0.05 % of rdg
Thermocouple (± 50 mV) : ± 1 µV,± 0.05 % of rdg
Approvals CE Mark
Baud Rate 9600 to 57600
Control Characteristics
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
Control Output Heater
Control Type Manual Heater Output, Open Loop, PID Control
Data Interface RS232
Digital Connector Type 9 pin Sub-D
Display Annunciators Autotune, Control input, Remote
Display Measuring Units °C, K, mV, V
Display Size 5.5 mm Digits
Display Type LCD
Display Type Note
Display: 2-line, 20-character, liquid crystal display with 5.5 mm (0.216”) character height
Display Update Rate: 2 rdg/s
Other Displays: Setpoint, heater range, and heater output; user selected
Electrical Connection Ceramic Isothermal Block
Filter Averages 2 to 64 input readings
Form factor Benchtop
Front Panel Display Readings 1 to 4
Heater Output Display Percentage of full power or current
Heater Output Resolution 0.01
Height 89 mm
Input Type Thermocouple, RTD, Thermistor
Input Type Note Temperature, sensor units Input Configuration: Each input is factory configured for either diode/RTD or thermocouple
Interface Features IEEE-488 Interface Features: SH1, AH1, T5, L4, SR1, RL1, PP0, DC1, DT0, C0, E1
Isolation Sensor inputs optically isolated from other circuits but not each other
Keypad 20-key membrane, numeric and specific functions
Length 368 mm
Loops Control Loops : 2
Measurement Type Temperature
Number of Control Outputs 2
Number of Inputs 2
Operating Temperature, Max 35 °C
Operating Temperature, Min 15 °C
Output Detail 2 Heater output
Output Signal None
Power Consumption 6 W
Resolution Sensor dependent, refer to input specifications table
RTD Type 4-lead differential With 6-Pin DIN Connector
Sampling Rate 10 Hz (10 updates/second)
Sampling Rate Note To 10 rdg/s on each input
Sensor Input Configuration
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, CernoxTM, and RoxTM Standard Curves: CY7 and CY670, PT-100, PT-1000, RX-102A, RX-202A
Input Connector: 6-pin DIN
Sensor Units Display Resolution Sensor dependent up to 5 digits
Series ID CYC325-Series
Setpoint Setting Resolution Same as display resolution (actual resolution is sensor dependent)
Settable Parameters Curve Entry, Keypad Lock-out
Software Support LabVIEWTM driver; consult factory for availability
Supply Power Note Standard 120 Vac, optional 240 Vac, 6%, -10%, 50 or 60 Hz, 85 VA
Supply Power Type AC
Supply Voltage 100 to 240 Vac
Temp Display Resolution 0.001° from 0 to 99.999°, 0.01° from 100 to 999.99°, 0.1° above 1000°
Tuning Autotune, PID, PID zones
Update Rate, Max 10 rdg/s on each input (except 5 rdg/s on input A when configured as thermocouple)
Weight 4 kg
Width 216 mm

Supported Applications

The Omega CYC325 Series, including models CYC325, CYC325-T1, and CYC325-T2, is a precision cryogenic temperature controller designed for controlling and measuring temperatures in laboratory and industrial environments. The instrument features a front panel with a digital display and keypad for setup and operation.

Per manufacturer warnings, the equipment is not intended to be used as a 'Basic Component' under 10 CFR 21 (NRC) in nuclear installations or activities, nor is it intended for medical applications or use on humans.

Operating Conditions & Performance

The series operates within an ambient temperature range of 0 °C to 50 °C and supports a process measurement range from 1.5 K to 400 K, with optional sensors available for extended ranges. The instrument provides a resolution of 0.001 K.

Accuracy: ±0.05% of reading or ±0.05 K, whichever is greater; improved to ±0.01% of reading or ±0.01 K with CalCurve™.
Response Time: Typical 10 seconds (depends on system thermal mass).
Humidity Rating: 0% to 90% RH, non-condensing.
Storage Temperature: -40 °C to 70 °C.

The unit is housed in a metal chassis with a plastic front panel and carries an enclosure rating of NEMA 1. It complies with the European EMC Directive 89/336/EEC as a Class A product (CE Mark).

Configuration Options

The CYC325 Series is configurable for various control and monitoring needs through selectable outputs, excitation currents, and optional accessories.

Output Signals: 0-20 mA (load resistance 0 to 500 Ω), 4-20 mA, 0-10 V, 0-5 V, or Relay Output.
Excitation Current: Selectable between 10 µA or 1 mA.
Power Supply: 100-240 VAC, 50/60 Hz with rear panel connectors for sensor inputs, heater outputs, and power via screw terminals.
Dimensions (W x H x D): 193 mm x 127 mm x 305 mm; weight is approximately 4.5 kg.
Options & Accessories: Optional sensors for extended range, calibration services, and software for remote control and data logging are available.

Key Product Differences

The series includes specific model designations: CYC325, CYC325-T1, and CYC325-T2. The manual notes that the full list of accessories is not explicitly detailed beyond general mentions.

Users should note EMC considerations for Class A products in domestic environments; radio interference may occur requiring adequate measures by the user. Additionally, improper cabling installation may defeat EMC protection, and warranty coverage excludes damage from tampering, excessive corrosion, current, heat, moisture, vibration, or misuse outside of Omega's control.

PDFs & Manuals

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