The ConsoliDator® PD900 is an easy-to-use, multi-channel controller that accepts up to eight (8) 4-20 mA inputs, four (4) flowmeter pulse inputs, and up to eight (8) digital inputs, then displays them on a large, backlit, graphical LCD screen. It is available in four models: the PD940 (4 input, wall mount), the PD941 (4 input, panel mount), PD980 (8 input, wall mount), and the PD981 (8 input, panel mount). While programming the meter, onscreen soft keys appropriately and clearly relabel the action of the front panel buttons making menu navigation quick and simple. In operating mode, the ConsoliDator’s main screen displays all the inputs in both numeric and bar graph format and its individual screens display detailed information about each. The ConsoliDator is suitable for all safe area monitoring and controlling applications such as flow, level, pressure, temperature, and vibration. The availability of Modbus® RTU serial communications makes it ideal for SCADA applications.


  • Easy to Read Backlit LCD
  • Readable in Direct Sunlight
  • Bargraphs & Numeric Screens
  • Easy to Set up & Configure
  • Set up with Front Panel Keys
  • Intuitive Menus
  • Detailed Individual Screens
  • Input Simulation Feature
  • RS-232 Modbus RTU
  • Direct Modbus PV Inputs
  • Power from AC or DC
  • Wall or Panel Mount
  • 32-Point Linearization
  • Sum & Difference Functions
  • Free Programming & Data Logging Software
  • A Good Match for Wireless
  • Four Pulse Inputs
  • Four Digital Inputs
  • Nine 10 A Relays
  • Process/Rate & Total Display


Display Update Rate: 2 seconds
Programming Method: Front panel buttons, external buttons, PC with ConsoliDator software, or Modbus registers.
Password: Programmable, restricts modification of settings.
Non-Volatile Memory: Settings stored for a minimum of 10 years.
Power: 90-264 VAC, 47-63 Hz, 20 VA or 8-30 VDC, 15 W (field)
Isolation: AC: 1500 V; signal and output power grounds are connected to earth ground (chassis); DC: not isolated.
Surge Protection: Analog inputs have chokes & TVS
Operating Temperature: 0 to 50°C
Relative Humidity: 0 to 90% non-condensing
Storage Temperature: -40 to 60°C
Connections: Removable screw terminals and DB9 male
Enclosure: NEMA 1, powder-coated steel; color: warm gray
Mounting: Panel or wall mount models
Weight: 5.5 lb (2.5 kg)
Warranty: 1 year parts & labor

Screen Displays

Numeric Display: Six digits, ±999999 or 99' 11.9" (feet & inches)
Bargraph: Twenty divisions
Engineering Units: User selectable or definable units (e.g. ppm, gal, m, lb, g/h, psi, ozs, ft, mA, ºC, ºF, f & i, %)
Master Input Screen:
    Numeric Displays: Eight; process value & engineering units
    Bargraphs: Eight; process & channel number
Individual Input Screen:
    Numeric Displays: Process and mA input value
    Bargraphs: High and low set point markings
    Simulation Mode: Test setup without applying an input

Analog Inputs

Number of Inputs: Four (ConsoliDator 4); Eight (ConsoliDator 8)
Input: 4-20 mA; minimum span of 1 mA
Accuracy: ±0.03% FS ±1 count
Input Function: Linear, square root, programmable exponent, or fixed value
Programmable Exponent: From 0.50001 to 2.99999
Multi-Point Linearization: 2 to 32 points, accessible through ConsoliDator software or Modbus registers.
Math Function: Sum or difference of 2 or more channels
Totalizer: Calculates total based on rate and time base of seconds, minutes, hours, or days; stored in non-volatile memory every 5 minutes; supports linear inputs only.
Totalizer Reset: Via front panel buttons (password restricted)
Input Impedance: 130 Ω
HART Transparency: Analog input will not interfere with existing HART communications on the wired 4-20 mA signal
Transmitter Supply: 24 VDC @ 20 mA per input; short circuit protection: current limited to 40 mA max per input

Pulse Inputs

Number of Inputs: Four
Input: 100 mVp-p to 15 Vp-p; 1 Hz to 10 kHz
Accuracy: ±1 count for K-Factor >1
K-Factor: 0.00001 to 999999 pulses/unit
Totalizer: Calculates total based on rate, stored in non-volatile memory every 5 minutes.
Totalizer Reset: Via front panel buttons (password restricted)

Digital Inputs

Number: Four
Type: Switch closure, open collector transistor, or logic level
Input Impedance: 240 Ω

Modbus PV Inputs

Number: Up to 4 (ConsoliDator 4), and up to 8 (ConsoliDator 8)
Input: Modbus via RS-232 serial port


Number of Relays: Nine
Relay Type: Form C (SPDT) with built in MOVs
Rating: 10 A @ 120/240 VAC resistive load; 1/3 HP @ 120/240 VAC inductive loads; 5 A @ 28 VDC
Minimum Load: 50 mA for AC, 10 mA @ 5 VDC
Assignment: Any relay may be assigned to any channel. Multiple relays may be assigned to one channel. All relays are programmed independently.
Cycle Monitoring: Controller tracks time relay has been active and number of times relay has cycled on/off.
Time Delay: Programmable on/off delays, 0 to 999.9 seconds
Operation: (see instruction manual for complete list) High or Low Alarm, Multi-Channel Alarm, Summary Alarm, Supervisory Alarm, and Lead-Lag Alternation (Sequence)
Manual Override: Override any relay (password restricted). Relays do not respond to input while in this mode.

4-20 mA Analog Output

Number: Four (ConsoliDator 4); Two (ConsoliDator 8) Assign to any process or pulse input
Accuracy: ±0.05% FS ±0.01 mA
Mode: Linear or manual tuning PID
Loop Resistance: 10 to 600 Ω, powered by controller
External Loop Power Supply: 12 VDC min (300 Ω max); 32 VDC max (900 Ω max)
Isolation: 1500 V output-to-power line; 500 V output-to-input when powered by external supply.

Modbus Communications

Compatibility: EIA-232
Protocol: Modbus RTU
Address: Programmable between 1 and 247
Baud Rate: 1,200 to 38,400 bps
Transmit Delay: Programmable between 0 and 300 ms
Data: 8 bits (1 start bit, 1 stop bit)
Parity: Even, None with 1 stop bit, or None with 2 stop bits

ConsoliDator Software

System Requirements: Windows® 95/98/ME/NT4/2000/XP/Vista/7/8
Communications: RS-232 using null-modem serial cable
Compatibility: ConsoliDator 4 & ConsoliDator 8, two versions
Configuration: Configure inputs and outputs. Save settings to file for programming other controllers or restoring settings.
Logging Interval: 1 second to 10 minutes
Data Logging Report: Log to comma separated value(.csv) file compatible with spreadsheet applications

Consolidator Software

Free PC based software is included with every ConsoliDator. With this software the user can monitor process variables, relay states, alarm states, and switch input states. The software can be used as a data logger, or to configure the ConsoliDator.
Click here to download Consolidator software.

Main Display

On the main display screen of the software, the bargraph display not only shows the current PV value, it also shows any set and reset alarm points (gray lines on bargraph). On this screen you can also monitor relay and switch input states.

Recent History Viewer

Recent History Viewer
When an input channel is selected on the main display screen, a graph of recent history (last 5-10 minutes) can be viewed. A bargraph of its current value is also present.

Data Logging

Data Logging
The data logger allows you to log the PVs over time. A CSV file is created so that the data can be used by a spreadsheet program. Log rate intervals can be set from 1 second to 10 minutes.


The ConsoliDator can be remotely configured with this software by inputting the configuration data directly, or by copying a configuration from another ConsoliDator. Configurations can also be saved to your computer for future use.

Connectors Diagram

Consolidator Silkscreen

The connectors diagram is silk-screened on the back of all panel mount ConsoliDators (PD941 shown here).

Wall Mount

Overall Dimensions

ConsoliDator overall Wall
Mounting Dimensions
Units: Inches (mm)

ConsoliDator mounting Panel

Panel Mount

ConsoliDator overall Panel
ConsoliDator mounting Panel


Consolidator PDA2901 mounting dimension
Consolidator PDA2904 mounting dimension

For more information on the PDA2901, click here


Choose Your Options

Configurations other than those specified above are available at a $250 adder. Consult factory for desired model number and price.

Why you should buy:

  • Accepts Analog, Pulse, and Digital Inputs
  • Displays as Numbers and Bargraph