Precision Digital

PD900 Consolidator Multi-Channel Controller

Accepts up to eight (8) 4-20 mA inputs, four (4) flowmeter pulse inputs, and up to eight (8) digital inputs


This product is obsolete and has been replaced by:
PD9000 ConsoliDator+ Multivariable Controller


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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

General 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, ║C, ║F, 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
Relays 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