产品详情
  • 产品名称:PD540系列1/16 DIN过程变量和温度控制器

  • 产品型号:PD540: 1/16 DIN Process & Temperature Controller
  • 产品厂商:PRECISION
  • 产品价格:0
  • 折扣价格:0
  • 产品文档:
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简单介绍:
Description: Auto-Tune PID Process & Temperature Controller Process Inputs: 0.4-2.0 V, 1-5 V, 0-10 V, -10 to 20 mV, 0-100 mV, 4-20 mA (4-20 mA requires resistor PDX-RES1) Temperature Inputs: J, K, T,
详情介绍:
  • Thermocouple, RTD, & Process Inputs
  • High Accuracy Auto-Tuning PID
  • Heating & Cooling Models
  • Universal Power Supply 100-240 VAC
  • Up to 3 Relays & 2 Analog Outputs
  • Digital Input Set Point Selection
  • RS-485 Serial Communications Option
  • Modbus® RTU/ASCII Communications
  • Free Operating & Data Logging Software
  • IP55 & IP65 Fronts
  • 1/16, 3/16, 1/8, 1/4 DIN Sizes
  • 3 Year Warranty


    Process and temperature controller PD540 Demo
     
Digital Temperature Controller PD540 Series

 
 

FEATURES

The PD540 is a 1/16 DIN Nova Digital Temperature Controller with auto-tuning PID control capabilities. One of four user programmable set points may be selected for PID control in the form of time proportional relay on/off output, time proportional voltage pulse, or 4-20 mA signal control. Its universal input accepts 23 input varieties, including thermocouple, RTD, and voltage inputs and can be easily configured for a 4-20 mA input. The relays may be programmed as alarms with 20 different high, low, and deviation alarm types that can include fail-safe operation. Digital input options add the ability of external contacts to operate the controller. RS-485 serial communication options include protocols for Master/Slave set point control, Modbus ASCII and RTU, as well as PC software.

 

OPERATING DISPLAYS

The Nova Digital Controller has dual four-digit LEDs and can display commonly used setup parameters defined by the user

To access additional display information without the need to enter the setup menus, simply press the SET/ENT button.


Main Operating Display

 
  • PV window displays process variable
  • SP window displays set point
  • Press the SET/ENT button to move to the next display window
     

Digital Temperature Controller Operating Display Navigation Main Operating Display

 

Percent Output Display

 
  • PV window displays process variable
  • SP window displays the operating level of the
    control outputs as % of full scale
     
  • Press the SET/ENT button to move to the next
    display window
Digital Temperature Controller PD540 Percent Output Display

 

User Defined Display 1

 
  • Display any setup parameter
  • Parameters are fully functional, and can be set through this display
  • Set by the user with parameter US1
  • Press the SET/ENT button to move to the next display window

Digital Temperature Controller PD540 User Defined Display 1

 

User Defined Display 2
  • Display any setup parameter
  • Parameters are fully functional, and can be set through this display
  • Set by the user with parameterUS2
  • Press the SET/ENT button to return to
    the main operating display

Process and Temperature Controller PD540 User Defined Display 2

 
 

EASY SETUP & PROGRAMMING

All programming of a Nova Digital Controller is done through the front panel. No switches or jumpers
are required.

Front Panel Buttons Operating

  • Press the SET/ENT button to confirm an entered value. Hold the button for 3 seconds to enter or exit the setup
    groups. Press the SET/ENT button to access the next parameter when in a setup group.
     
  • Press the Up arrow button to increase numerical values or scroll through parameter options and group menus.
     
  • Press the Down arrow button to decrease numerical values or scroll through parameter options and group menus.
     
  • Press the LEFT arrow button to move to the next digit
    during numerical value programming.

     

Setup Group Menus

For easy setup parameter navigation, all parameters are grouped by category. To access the group menus, press and hold the SET/ENT button for 3 seconds. Navigate through the group menus using the UP or DOWN arrow buttons as shown. To enter a group menu to access setup parameters, press the SET/ENT button.

Button

 
PV Display

 
Group Definition

 
Auto-Tuning Group



 
Set Point Group



 



 
P.I.D. Group
ENT


 
Password



 
Control Group



 
Input Group



 
Output Group



 
Alarm Group



 
Retransmission Group
Communications Group

* This group menu appears only on models with the serial communications option.

Menu Password

To prevent unauthorized changes to key parameters, a user defined lockout password must be entered to access the group menus that are not commonly used during operation. Enter the password at the prompt when navigating the group menus by pressing the SET/ENT button. The default password is 0.

Easy to Use Menu Structure

Each parameter is located in an associated menu group.

Process and Temperature Controller PD540 Easy To Use Menu Structure Process and Temperature Controller PD540 Easy To Use Menu Structure

  • Hold the SET/ENT button for 3 seconds to enter
    the group menu
  • Select the menu group using theandbuttons
  • Press SET/ENT to access the parameters in the group
  • Set the value for the parameter, and press SET/ENT to
    select the next parameter
  • Hold the SET/ENT button for 3 seconds to return to the
    operating display


For a complete list of setup parameters, their functions, and setting options, refer to the PD540 Series Instruction Manual

 

PROCESS & TEMPERATURE INPUTS

Nova Controllers use a single universal input that accepts process and temperature inputs.

Thermocouple: J, K, T, E, R, B, S, L, N, U, W, Platinel II

RTD: Pt100 (0.00385), JPt100 (0.00392)
Process: -10 to 20 mV, 0 to 100 mV
0.4 to 2 V, 1 to 5 V, 0 to 10 V
4 to 20 mA input with a resistor shunt

 
 

VERSATILE OPERATION

Powerful standard and optional features such as universal inputs, up to three relays and two analog outputs, two digital inputs, and serial communications make this controller applicable for most process or temperature control applications.

Programmable Relays

All PD540 Series temperature controllers have a standard 3 A Form C (SPDT) relay. Up to two additional 1 A Form A (SPST) relays. All relays can be programmed for numerous control or alarm functions.
  • Time-Proportional PID Control
  • On/Off Control
  • High/Low Alarms
  • Set Point Deviation Alarms
  • Fail-Safe and Standby Alarms
  • Alarm Delays and Deadband

Analog Output Configurations

Up to two analog outputs are available on all PD540 Series controllers. Each analog output can be programmed independently, and numerous output types are selectable.

  • 4-20 mA PID Control
  • 4-20 mA Retransmitting
     
  • Time-Proportional PID Voltage Pulse
     
  • Transmitter Loop Power Supply

Auto-Tuning PID

A high accuracy auto-tuning function using Fuzzy Logic calculates the PID values for your system with the
push of a button, eliminating the need for complex PID calculations and time consuming setup. After several
on/off cycles, the PID values will be setup automatically.

Gain Adjustment

Adjustments to system control characteristics can be done after auto-tuning with the programmable Gain function. Increasing the Gain will increase accuracy and reduce overshoot. Lowering the Gain will let the system reach the set point faster.

Process and Temperature Controllers PD540 Gain Adjustment

 
PV Reactions to SP Change Based on Gain

Input Bias Adjustment

Up to five bias points can be used to provide precise offset adjustments at specific input values. The controller will use the offset to create a smooth input value curve leading up to the bias points.

On/Off Timers

The start timer delays control output operation from power-up. The process timer determines how long the control outputs will run after starting. These timers may run up to 99 hours 59 minutes, or be turned off.

Process and Temperature Controller PD540 On/Off Timers

Digital Input Set Point Selection

Two digital inputs can be added as an optional feature. Digital inputs are activated by closing contacts or low logic levels. The configuration of the two inputs can select which of the 4 programmable set points to run or turn the control outputs on and off while selecting one of two programmable set points.


DI Selection Input 1 Input 2 Function
1 off - STOP
on - RUN
- off SP1
- on SP2
2      
off off SP1
on off SP2
off on SP3
on on SP4


Normally open switches (external excitation not required) or open collector transistor

Serial Communications & Adapters


Nova controllers with the serial communications option can be used for data acquisition, master/slave set point control, or Modbus communication (RTU and ASCII). Nova controllers transmit via RS-485. The PDA7485 RS-232 to RS-485 and PDA8485 USB to RS-485 converters are available for use with the Nova Multi-Monitoring software or other PC applications.

Process and Temperature Controllers PD540 Serial Communications and Adapters PDA8485 Process and Temperature Controllers PD540 Serial Communications and Adapters PDA7485
PDA8485 PDA7485

Sync Master/Slave Set Point Control

PD540 Series Digital Controllers with the serial communications option can use Sync set point control. By connecting controllers together using the RS-485 serial communication capability, one controller can control the set point of an entire string.

Process and Temperature Controllers PD540 Sync Master/Slave Set Point Control
Changing the set point of the Sync Master controller will change the set points on all Sync Slave controllers.


 

NOVA PC SOFTWARE

Any Nova Controller with the serial communications option can be configured to interface with the Nova Multi-Monitoring PC software. Up to 30 controllers can be monitored and operated, and each can use independent data logging.
  • Easy to Set Up and Use
     
  • Connect up to 30 Nova Controllers
     
  • View PV, SP, and Alarm Status Simultaneously
     
  • Control Set Points
     
  • Log, View, and Save Data in Spreadsheet Files

     

Specifications

System Requirements: Windows® 95\98\ME\2000\XP
Communications: An RS-232 to RS-485 or USB to RS-485 converter may be used for communication with a PC and Nova Multi-Monitoring Software.
Number of Units: Up to 30 Nova Controllers
Baud Rate: 9,600 to 19,200 bps
Data Logging: Graph and save data as .hdr format. Each controller saves graphs independently. Data exportable in spreadsheet format.
Logging Interval: 1 second to 24 hours


Simultaneous Monitoring

Simultaneously monitor up to 30 Nova Controllers and view the PV, SP, and alarm status for all connected controllers. The main view screen also displays the basic model numbers of all connected units. Any series
of Nova Controllers with the serial communications option may be monitored with this software.

Process and Temperature Controllers PD540 Simultaneous Monitoring
Simultaneously View Up to 30 Nova Controllers


Remotely Control Set Points

Program each of the 4 set points through a detailed operation screen available for every connected controller. In addition, control outputs can be set to run or stop, auto tuning enabled, and automatic or manual control established.

Process and Temperature Controllers PD540 Remotely Control Set Points
Monitor and Control Common Parameters

Data Acquisition

PV and SP data can be logged independently for each unit. This data can be graphed using the Data Viewer for quick and clear analysis. Logged data can be exported into spreadsheet format.

Process and Temperature Controllers PD540 Data Acquisition
View Logged Data Graphs and Export Data
 

 

CONNECTIONS

PD540 & PD541

Process and Temperature Controllers PD540 Connections PD540 and PD541


PD542 & PD543

Process and Temperature Controllers Connections PD542 and PD543
 

PD544 & PD545

Process and Temperature ControllersPD544 and PD545
 

PD546 & PD547

Process and Temperature Controllers PD546 and PD547
 

PD548 & PD549

Process and Temperature Controllers PD548 and PD549

 
 

MODEL NUMBER GUIDE

The following guide describes the possible PD540 Series Nova Digital Process & Temperature Controller model numbers. Refer to the price list for the complete list of models and accessories.

Process and Temperature Controllers PD540 Model Number Guide

 
 

DIMENSIONS AND PANELCUTOUTS

PD540 & PD541

1/16 DIN (48 x 48)
Process and Temperature Controllers PD540 Dimensions and Panel Cutouts PD540 and PD541

Process and Temperature Controllers PD540 Dimensions and Panel Cutouts PD540 and PD541

 

PD542 & PD543

1/8 DIN (H) (96 x 48)

Process and Temperature Controllers PD540 Dimensions and Panel Cutouts PD542 and PD543

Process and Temperature Controllers PD540 Dimensions and Panel Cutouts PD542 and PD543

 

PD544 & PD545

3/16 DIN (72 x 72)
Process and Temperature Controllers PD540 Dimensions and Panel Cutouts PD544 and PD545

Process and Temperature Controllers PD540 Dimensions and Panel Cutouts PD544 and PD545


PD546 & PD547

1/8 DIN (V) (48 x 96)
Process and Temperature Controllers PD540 Dimensions and Panel Cutouts PD 546 and PD547

Process and Temperature Controllers PD540 Dimensions and Panel Cutouts PD 546 and PD547

 

PD548 & PD549

1/4 DIN (96 x 96)

Process and Temperature Controllers PD540 Dimensions and Panel Cutouts PD548 and PD549

Process and Temperature Controllers PD540 Dimensions and Panel Cutouts PD548 and PD549

 
 

SPECIFICATIONS

Except where noted all specifications apply to operation at +25°C.

General

Display: Dual 4 digits, red LED, -1999 to 9999

DIN SIZE PV Display
Inch (mm)
SP Display
Inch (mm)
Weight
oz (g)
1/16 0.45 (11.3) 037 (9.5) 7.0 (198)
3/16 0.55 (14.0) 0.47 (12.0) 11.4 (324)
1/8 (H) 0.78 (19.8) 0.45 (11.5) 10.8 (306)
1/8 (V) 0.54 (13.6) 0.41 (10.5) 10.7 (304)
1/4 0.81 (20.5) 0.43 (11.0) 13.7 (389)

Front Panel: Panel gasket provided. 1/16 & 1/8 DIN: IP65, 3/16 & 1/4 DIN: IP55
Programming Methods: Four front panel buttons and Modbus
Number of Set Points: Four programmable set points
Noise Filter: Programmable 1 to 120 seconds or off
Display Update Rate: 4/second
Password: Restricts modification of programmed settings.
Non-Volatile Memory: Settings stored for a minimum of 10 years
Power: 100-240 VAC, 50/60 Hz, 10 W
Required Fuse: UL Recognized, 1 A, 250 V, slow-blow
Isolation: 2300 V input/output-to-power line; 4 kV relay output-to-input/output/power line.
Operating Temperature: 10 to 50°C
Storage Temperature: -40 to 85°C
Relative Humidity: 20 to 90% non-condensing
Enclosure: 1/16, 3/16, 1/8(H), 1/8(V), 1/4 DIN; impact-resistant plastic; color: black
Approvals: UL & C-UL Recognized, CE Compliant
UL File Number: E244207; Process Control Equipment
Warranty: 3 years parts & labor
Extended Warranty: 1 or 2 years, refer to Price List for details.

Temperature Inputs

Inputs: Factory calibrated, field selectable: J, K, T, E, B, R, S, L, U, N, W, Platinel II thermocouples,
and 100 Ω platinum RTD (0.00385 or 0.00392 curve)
Cold Junction Reference: Automatic or off
Offset Adjustment: Four programmable input bias zones
Sensor Break: Up or down scale, user selectable; display reads S.OPN; alarm relays will follow the up or
down scale selection.

Type Range (°C) Range (°F) Accuracy
Thermo Couple  K1 -200 to 1370 -300 to 2500 2500>0ºC: ± 0.1% FS ± 1count
<0ºC: ± 0.2% FS ± 1 count
K2 -199.9 to 999.9 0 to 2300
J -199.9 to 999.9 -300 to 2300
T -199.9 to 400.0 -300 to 750
E -199.9 to 999.9 -300 to 1800
B 0 to 1800 32 to 3300 >400ºC: ± 0.15% FS ± 1 count
<400 ºC: ± 5% FS± 1 count
R 0 to 1700 32 to 3100 ±0.15% FS ± 1 count
S 0 to 1700 32 to 3100
L -199.9 to 900.0 -300 to 1600 >0ºC: ± 0.1% FS ± 1 count
<0ºC: ± 0.2% FS ± 1 count
U -199.9 to 400.0 -300 to 750
N -200 to 1300 -300 to 2400 >0ºC: ± 0.1% FS ± 1 count
<0ºC: ± 0.25% FS ± 1 count
W 0 to 2300 32 to 4200 ±0.2% FS ± 1 count
Platinel II 0 to 1390 32 to 2500 ±0.1% FS ± 1 count
RTD PtA -199.9 to 850.0 -300 to 1560 ±0.1% FS ± 1 count
PtB -199.9 to 500.0 -199.9 to 999.9
PtC -19.99 to 99.99 -4.0 to 212.0 ±0.2% FS ± 1 count
JPtA -199.9 to 500.0 -199.9 to 999.9 ±0.1% FS ± 1 count
JPtB -150.0 to 150.0 -199.9 to 300
*Performance within recommended operating conditions (10 to 50 ºC, 20 to 90% RH)


Process Inputs

Inputs: Field selectable: 0.4 to 2.0 V, 1 to 5 V, 0 to 10 V, -10 to 20 mV, 0 to 100 mV. 4-20 mA input requires 100 Ω resistor connected across input terminals (order P/N: PDX-RES1).
Accuracy: ±0.1% FS ±1 count
Decimal Point: Up to 3 decimals: 9.999, 99.99, 999.9 or 9999
Calibration: All inputs are calibrated at the factory
Scale Range: User programmable over entire range
Transmitter Supply: 14 to 18 VDC @ 20 mA; available at terminals OUT2 or OUT3, instead of retransmitting analog output; selection through front panel.

Relays

Ratings: 1 Form C (SPDT) standard; rated 3 A @ 30 VDC or 3 A @ 250 VAC resistive load. 1 or2 Form A (SPST) optional; rated 1 A @ 30 VDC or 1 A @ 250 VAC resistive load.
Relay Operation: Time proportional PID control, on/off control, forward or reverse (fail-safe) alarm, or run status
Cycle Time: 1 to 300 seconds; time proportional PID control only
On/Off Hysteresis: For standard models, 0-10.0% of sensor range for independent high and low hysteresis limit. For heating & cooling models, 0-10.0% of sensor range full hysteresis band.
High/Low Alarm: User may program any alarm for absolute high or low trigger values.
Deviation Alarm: User may program any relay for high, low, or high/low range set point deviation alarm.
Alarm Deadband: 0-100% FS, user selectable
Alarm Delay: 0 to 99 minutes and 59 seconds
Reverse Operation (Fail-Safe): Programmable, independent for each alarm. Relay coils are energized in non-alarm condition. In case of power failure, relays will go to alarm state.
Forward Operation: Relay coils are energized in alarm condition. In case of power failure, relays will go to non-alarm state.
Auto Alarm Initialization: Normal and standby operation independent for each alarm. Normal alarms will reflect the state of the input to the controller at all times. Standby alarms will not trigger if the change to alarm state is a result of power up cycle, set point change, or alarm configuration change.
Run Status: Relays will energize when PID outputs are running.

Analog Outputs

Scaling Range: Retransmitting 4-20 mA outputs can be scaled for any display range.
Accuracy: ±0.1% FS
Availability:1/16 & 3/16 DIN: 1 standard, 1 optional 1/8 & 1/4 DIN: 2 standard
Output Operation: 4-20 mA PID control, time proportional voltage pulse PID control, or 4-20 mA retransmitting
Ratings: Continuous 4-20 mA PID or retransmitting: 600 Ω max Time Proportional PID: 15 VDC pulse high, less than 0.1 VDC pulse low; 600 Ω minimum, current limited at 30 mA
Cycle Time: 1 to 300 seconds; time proportional PID control only
Power: Internally powered 4-20 mA output
Isolation: 500 V input-to-output
Output Loop Resistance: 600 Ω max

Digital Inputs

Configuration Two contacts, two operating modes
Contacts: Normally open switches (external excitation not required) or open collector transistor
Open Circuit Voltage: Approximately 5 VDC
Logic Levels: LO = 0 to 0.8 VDC, HI = 4.7 to 28 VDC
Operation Modes: Mode 1: Control output run or stop, selection of set point 1 or 2. Mode 2: Selection of set points
1 to 4.

Serial Communications

Compatibility: EIA-485
Protocol: PC, Modbus (ASCII, RTU), Sync (Master/Slave SP Control)
Address: 1 to 99 (Max 31 units connected)
Baud Rate: 600 to 19,200 bps
Transmit Time Delay: 0 to 100 ms
Data: 7 or 8 bit, automatic when using Modbus protocol
Stop Bit: 1 or 2
Parity: None, even, or odd
 

ORDERING INFORMATION

Products

Model Description  

QuickShip Program Eligible ProductBlue dot denotes item as a Quick Ship product

 
PD540-6RA-00QuickShip Program Eligible Product        Auto-Tune PID Process & Temperature Controller; 1 Relay, 1 Analog output, 2 Digital Inputs; 1/16 DIN         
PD540-6RA-11        Auto-Tune PID Process & Temperature Controller; 2 Relays, 1 Analog, 2 Digital Inputs; 1/16 DIN         
PD540-6RA-14        Auto-Tune PID Process &Temperature Controller; 2 Relays, 1 Analog, RS-485; DIN Size 1/16         
PD540-6RA-31        Auto-Tune PID Process & Temperature Controller; 1 Relay, 2 Analog; 1/16 DIN         
PD540-6RA-34        Auto-Tune PID Process & Temperature Controller; 1 Relay, 2 Analog, RS-485; 1/16 DIN         
PD541-6RA-00        Auto-Tune PID Process & Temperature Controller; 1 Relay, 1 Analog, Heating & Cooling Option; 1/16 DIN         
PD541-6RA-11        Auto-Tune PID Process & Temperature Controller; 2 Relays, 1 Analog, 2 Digital Inputs, Heating & Cooling Option; 1/16 DIN         
PD541-6RA-14        Auto-Tune PID Process & Temperature Controller; 2 Relays, 1 Analog, RS-485, Heating & Cooling Option; 1/16 DIN         
PD541-6RA-31        Auto-Tune PID Process & Temperature Controller; 1 Relay, 2 Analog, 2 Digital Inputs, Heating & Cooling Option; 1/16 DIN         
PD541-6RA-34        Auto-Tune PID Process & Temperature Controller; 1 Relay, 2 Analog, RS-485, Heating & Cooling Option; 1/16 DIN         
PD542-6RB-00        Auto-Tune PID Process & Temperature Controller; 1 Relay, 2 Analog Outputs; 1/8 (H) DIN         
PD542-6RB-21        Auto-Tune PID Process & Temperature Controller; 3 Relays, 2 Analog, 2 Digital Inputs; 1/8 (H) DIN         
PD542-6RB-24        Auto-Tune PID Process & Temperature Controller; 3 Relays, 2 Analog, RS-485 ; 1/8 (H) DIN         
PD543-6RB-00        Auto-Tune PID Process & Temperature Controller; 1 Relay, 2 Analog, Heating Auto-Tune PID Process & Cooling; 1/8 (H) DIN         
PD543-6RB-21        Auto-Tune PID Process & Temperature Controller; 3 Relays, 2 Analog, 2 Digital Inputs, Heating & Cooling Option; 1/8 (H) DIN         
PD543-6RB-24        Auto-Tune PID Process & Temperature Controller; 3 Relays, 2 Analog, RS-485, Heating & Cooling Option; 1/8 (H) DIN         
PD544-6RA-00        Auto-Tune PID Process & Temperature Controller; 1 Relay, 1 Analog Output; 3/16 DIN         
PD544-6RA-04        Auto-Tune PID Process & Temperature Controller; 1 Relay, 1 Analog, RS-485; 3/16 DIN         
PD544-6RA-51        Auto-Tune PID Process & Temperature Controller; 3 Relays, 2 Analog, 2 Digital Inputs; 3/16 DIN         
PD544-6RA-54        Auto-Tune PID Process & Temperature Controller; 3 Relays, 2 Analog, RS-485; 3/16 DIN         
PD545-6RA-00        Auto-Tune PID Process & Temperature Controller; 1 Relay, 1 Analog Output, Heating & Cooling Option; 3/16 DIN         
PD545-6RA-04        Auto-Tune PID Process & Temperature Controller; 1 Relay, 1 Analog, RS-485, Heating & Cooling Option; 3/16 DIN         
PD545-6RA-51        Auto-Tune PID Process & Temperature Controller; 3 Relays, 2 Analog, 2 Digital Inputs, Heating & Cooling Option; 3/16 DIN         
PD545-6RA-54        Auto-Tune PID Process & Temperature Controller; 3 Relays, 2 Analog, RS-485, Heating & Cooling Option; 3/16 DIN         
PD546-6RB-00        Auto-Tune PID Process & Temperature Controller; 1 Relay, 1 Analog Outputs; 1/8(V) DIN         
PD546-6RB-21        Auto-Tune PID Process & Temperature Controller; 3 Relays, 2 Analog, 2 Digital Inputs; 1/8 (V) DIN         
PD546-6RB-24        Auto-Tune PID Process & Temperature Controller; 3 Relays, 2 Analog, RS-485; 1/8 (V) DIN         
PD547-6RB-00        Auto-Tune PID Process & Temperature Controller; 1 Relay, 2 Analog, Heating & Cooling Option; 1/8 (V) DIN         
PD547-6RB-21        Auto-Tune PID Process & Temperature Controller; 3 Relays, 2 Analog, 2 Digital Inputs, Heating & Cooling Option; 1/8 (V) DIN         
PD547-6RB-24        Auto-Tune PID Process & Temperature Controller; 3 Relays, 2 Analog, RS-485, Heating & Cooling Option; 1/8 (V) DIN         
PD548-6RB-00        Auto-Tune PID Process & Temperature Controller; 1 Relay, 2 Analog outputs; 1/4 DIN         
PD548-6RB-21        Auto-Tune PID Process & Temperature Controller; 3 Relays, 2 Analog, 2 Digital Inputs; 1/4 DIN         
PD548-6RB-24        Auto-Tune PID Process & Temperature Controller; 3 Relays, 2 Analog, RS-485; 1/4 DIN         
PD549-6RB-00        Auto-Tune PID Process & Temperature Controller; 1 Relay, 2 Analog, Heating & Cooling Option; 1/4 DIN         
PD549-6RB-21        Auto-Tune PID Process & Temperature Controller; 3 Relays, 2 Analog, 2 Digital Inputs, Heating & Cooling Option; 1/4 DIN         
PD549-6RB-24        Auto-Tune PID Process & Temperature Controller; 3 Relays, 2 Analog, RS-485, Heating & Cooling Option; 1/4 DIN         
  

Accessories

Model Description  
 PDA7485-I        RS-232 to RS-422/485 Isolated Converter         
 PDA7485-N        RS-232 to RS-422/485 Non-Isolated Converter         
 PDA8485-I        USB to RS-422/485 Isolated Converter         
 PDA8485-N        USB to RS-422/485 Non-Isolated Converter         
 PDX-RES1        100 Ω Precision Resistor for NOVA 4-20 mA Input         



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