CNPT-Series

The Platinum Series family of microprocessor-based PID controllers offer unparalleled flexibility in process measurement. While extremely powerful and versatile, great care has gone into designing a product that is very easy to set-up and use. The automatic hardware configuration recognition eliminates the need for jumpers and allows the firmware to automatically simplify itself, eliminating all menu options that do not apply to a specific configuration. Offered in 1⁄32, 1⁄16, and 1⁄8 DIN sizes, the 1⁄16 and 1⁄8 DIN models can be configured with dual displays.

Each unit allows the user to select the input type from 9 thermocouple types, PRT/RTD sensors, thermistors, DC voltage, DC current, and Strain & Bridge inputs. The full bidirectional voltage or current inputs are fully scalable to virtually all engineering units, with a selectable decimal point that is perfect for use with pressure, flow, or other process input.

Up to 6 programmable outputs including the isolated analogue and additional features make this the most powerful product in its class. Standard features include: remote set-point for cascaded control, high-high/low-low alarms, external latch reset, external ramp and soak initiation, combination heat/cool control mode and configuration save and transfer.

Free Downloadable Software
Free Downloadable Configurator Windows® Application Software

• Fully Configure all PLATINUM Functions/Parameters
• Auto-Connect Through USB Channel
• Load/Save PLATINUM Configuration Files
• Performance Tracking (Charting) with Data Capture

An advanced multi-stage ramp and soak sequencer supports up to 99 profiles of 8 segment ramp/soak sequences. Profiles may be linked to provide extended sequences and auxiliary outputs may be triggered based on individual Ramp or Soak states to provide external control over blowers, mixers or other auxiliary control functions.

Embedded Ethernet and Serial Communications
Optional “embedded ethernet” on the 1⁄16 and 1⁄8 DIN models allow the units to connect directly to an Ethernet network and transmit data in standard TCP/IP packets, or serve Web pages over a LAN or the Internet. Optional serial communications are also available configurable as RS232 or RS485, with straightforward ASCII commands or MODBUS®. All three types of communications interfaces can be installed and active simultaneously.

LabVIEW Driver
The Platinum LabVIEW driver is the National Instrument device driver for communicating with Omega Platinum Controllers via Modbus RTU/ASCII and Modbus TCP protocols. The driver allows easy access to the internal data, configuration settings, and operating functions of the Platinum product family.

The LabVIEW instrument driver reduces the application development time and simplifies instrument control. With the Platinum LabVIEW driver, customers can quickly communicate with the instrument and develop robust test applications and software.

DasyLab
Support for the easy-to-use DasyLab software solves complex data acquisition and control problems by allowing you to work with flowcharts directly on your PC screen. The high input accuracy, advanced process control, extended sequencing capability and flexible output options of a Platinum controller may be easily integrated with the rich set of function modules provide by the DasyLab software. The DasyLab software may be integrated thru the Platinum serial, Ethernet or USB connections.

Comparison Chart

SPECIFICATIONS
INPUTS
Input Types: Thermocouple, RTD, Thermistor, analogue Voltage, analogue Current, Strain
Current Input: 4 to 20 mA, 0 to 24 mA scalable
Voltage Input: ± 100 mV, ± 1 V, ± 10 Vdc single-ended, scalable; ± 50 and ± 100 mV differential and ratiometric inputs, scalable
Thermocouple Input (ITS 90): K, J, T, E, R, S, B, C, N
RTD Input (ITS 90): 100/500/1000 Ω Pt sensor, 2-, 3- or 4-wire; 0.00385, 0.00392 (100Ω only), or 0.003916 (100 Ω only) curves
Thermistor Input: 2252 Ω, 5K Ω, 10K Ω
Strain Input: ± 100 mV, ± 50 mV
Configuration: Differential
Polarity: Bipolar
Accuracy: See full table below
Resolution: 0.1° temperature; 10 µV process
Input Impedances:
Process Voltage: 10M Ω for ± 100 mV, 1M Ω for other voltage ranges
Process Current: 5 Ω
Thermocouple: 10K Ω max
Auxiliary Input (Remote Setpoint): 3.5K Ω for 0-10 V, 50K Ω for 0-1 V, 50 Ω for Current
Temperature Stability:
RTD: 0.04°C/°C
Thermocouple @ 25°C (77°F): 0.05°C/°C (cold junction compensation)
Process/Strain: 50 ppm/°C
A/D Conversion: 24-bit sigma delta
Reading Rate: 20 samples per second
Digital Filter: Programmable from 0.05 seconds (filter = 1) to 6.4 seconds (filter = 128)
CMRR: 120 dB
Excitation: Menu selectable (no jumpers to set) 5, 10, 12, and 24 Vdc @ 25 mA (12 V max for DC powered units).
Setpoint Adjustment: 4 Digit -9999 to +9999 counts; 6 Digit -99999 to +999999
Warm-Up to Rated Accuracy: 30 mins

CONTROL MODES
Action: Reverse (heat), direct (cool), or heat/cool
Auto-Tune: Operator initiated from front panel
Adaptive Tune: User selectable; fuzzy logic continuous PID tuning optimization
Control Modes: ON/OFF or the following time/amplitude proportional control modes; selectable manual or auto PID, proportional, proportional with integral, proportional with derivative
Cycle Time: 0.1 to 199 seconds
Ramp and Soak: Up to 99 saved ramp and soak programs, up to 8 ramp and 8 soak segments with individually selectable events per program
Ramp and Soak Segment Times: 00.00 to 99.59 (HH:MM) or 00.00 to 99.59 (MM:SS)

CONTROL OUTPUTS
Analogue Output: Non-isolated, programmable for control or retransmission; Voltage Output 0-10V output. 500Ohms Min. Accuracy 0.1%(1); Current Output 0-20mA output. 500Ohms Max. Accuracy 0.1%(1)(2); Step response time 100ms(3)
DC Pulse: Non-isolated; 10 Vdc at 20 mA
SPST Relay: Single pole, single throw mechanical relay, 250 Vac or 30 Vdc at 3 A (resistive load)
SPDT Relay: Single pole, double throw mechanical relay, 250 Vac or 30 Vdc at 3 A (resistive load)
SSR: 20 to 265 Vac at 0.05 to 0.5 A (resistive load)
Isolated analogue: 1.5kV Isolation(4), programmable for control or retransmission; Voltage Output 0-10V output. 500Ohms Min. Accuracy 0.1%(1); Current Output 0-20mA output. 500Ohms Max. Accuracy 0.1%(1)(2); Step response time 100ms(3)
Isolated DC Pulse: 1.5kV Isolation(4); 10Vdc at 20mA
(1) At 25C.
(2) Output scaling required for stated accuracy. Refer to Platinum Current Output Application Note.
(3) Filter setting of 1.
(4) Isolated outputs not individually isolated.

COMMUNICATIONS (USB STANDARD, OPTIONAL SERIAL AND ETHERNET)
Connection:
USB: Female micro-USB
Ethernet: Standard RJ45
Serial: Screw terminals
USB: USB 2.0 host or device
Ethernet Standards Compliance: IEEE 802.3 10/100 Base-T autoswitching, TCP/IP, ARP
Serial: Software selectable RS232 or RS485; programmable 1200 to 115.2 K baud
Protocols: Omega ASCII, Modbus® ASCII/RTU

ISOLATION
Approvals: UL, cUL, CE
Power to Input/Output: 2300 Vac per 1 min test; 1500 Vac per 1 min test (low voltage/power option)
Power to Relays/SSR Outputs: 2300 Vac per 1 min test
Relays/SSR to Relay/SSR Outputs: 2300 Vac per 1 min test
RS232/RS485 to Inputs/Outputs: 500 Vac per 1 min test


Accessories
Use the optional PT-USB-CABLE for an IP65 rated panel mount USB connector. A 300 mm length cable connects from USB port of Platinum controller to your control panel. This accessory includes a protective end cap when not in use.

The PT-USB-ADAPTER, which is supplied with each unit, can be plugged into the controller and be used with a standard USB 2.0 memory stick.

This 1 GB USB thumbdrive has a standard USB connector on one end and a micro-USB connector on the other end. It is convenient for transferring files between your PC and your PLATINUM unit.
Optional PT-USB-CABLE Optional 1 GB USB thumbdrive
The part numbers listed below are only examples. Many more configurations are offered and can be constructed using the part number builder at the bottom of this page.