N3000-4R-485 PID Process Controller with RS-485 and USB, 240 V

N3000-4R-485 PID Process Controller with RS-485 and USB, 240 V

SKU: PID-030

Novus N3000 universal, big digit, auto-tuning PID controller with 4 × relays, analog retransmission, remote set point, RS-485 and USB, 100 to 240 VAC/DC Powered.

  • Manufacturer: Novus
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The N3000 Big Digit Universal Process Controller is a real breakthrough in versatility for holding in one single instrument all the major features required in the vast majority of industrial processes.

With a sophisticated and consistent software and its advanced truly universal circuitry, the N3000 accepts configuration of both input signal and control output through the front keyboard without any internal hardware change.

Power supply for remote loop powered transmitters is standard and is a must for high-end applications.

From the very simple applications as a temperature controller to the most complex systems of distributed control with PLCs or SCADA networks, the N3000 is the right answer to your needs for industrial or laboratory automation.

Configuration can be performed directly on the controller or through the USB interface. The free QuickTune software for Windows is the configuration management tool. When connected by USB, the controller appears as a serial port on the host computer.

Quicktune can be used to batch program these controllers via USB, even when the controller is unpowered.

The controller acts as a Modbus RTU slave on the USB and RS-485 ports. You can use our ViewPID software to help you monitor, tune and record the performance of the controller with graphs of performance. Additionally, Novus Superview or our ISEE-Modbus can be used in production to log data and performs actions on alarms.


  • One digital input for dry contact with 5 programmable functions.
  • Auto tuning PID control. 
  • Auto/Manual mode, bumpless transfer.
  • Programmable Soft start up to 9999 seconds.
  • Up to four configurable relays, two timer alarms.
  • Alarm functions: LO, HI, differential, differential LO, differential HI, sensor break and event.
  • Alarm initial blocking function.
  • Circuitry can be removed from the front panel.
    • SKU
    • Weight
      0.45 kg
    • Dimensions (L x W x H)
      12 x 11 x 11 cm

Power supply: 240 Vac/dc, 50/60 Hz

Maximum consumption: 3 VA

sampling rate: 5 per second

Analog output: 0-20 mA or 4-20 mA

Digital input: Dry contact or NPN open collector

Accepts inputs: 

  • Thermocouples type J, K, T, N, R, S 
  • Pt100 RTD
  • Linear 4-20 mA, 0-50 mV, 0-5 Vdc.

Second analog input: 4 to 20 mA remote setpoint (Standard)


  • Thermocouples J, K, T: 0.25% of span ±1°C
  • Thermocouples N, R, S: 0.25% of span ±3°C 
  • Pt100: 0.2% of span
  • 4-20 mA, 0-50 mV, 0-5 Vdc: 0.2% of span

Internal resolution: 19500 levels

Ramp and Soak: 7 programs of up to 7 segments each. Can be linked to create longer programs of up to 49 segments.

Display: Double LED display (red for PV and green for SV )

Display resolution: 12000 levels (-1999 to 9999) 

Control output: 

  • 2 relays SPDT (I/O1 and I/O2) - 3 A /240 Vac
  • 2 relays SPST-NA (I/O3 and I/O4) - 1.5A / 250 Vac
  • Logic pulse for SSR drive (I/O5): 10 Vmax / 20mA

Communication interface: RS-485 Modbus RTU and USB

EMC: EN 61326-1:1997 and EN 61326-1/A1:1998

Operating environment: 0 to 55 ºC

Operating humidity: 20 to 85 % RH


  • Frontal: IP65
  • Case: IP30

Weight: 330 g

Panel cutout: 93 × 93 mm

Dimensions: 96 × 96 × 92 mm

Faulty Goods and Warranty

Where such goods have been supplied we undertake to repair or replace them as quickly as possible.Prior to returning faulty items, please contact us with a description of the fault as one of our engineers might be able to assist you by resolving the issue over the phone.
A Warranty form must be filled out and returned with any goods.

Our standard warranty period is 12 months from the date of purchase unless stated otherwise.

Other warranty periods:

Labjack Products: 5 Years
Atop Products: 3 Years
MeanWell Products: 3 Years
Terracom Products: 3 Years

Warranty is subject to us being satisfied that a defect was caused by defective workmanship or materials and was not caused by or was not substantially contributed to by other factors beyond our control including incorrect installation, alterations or modifications of the product not recommended by the manufacturer.

Returns Policy

If you are dissatisfied with our goods you may return them within 14 days of the dispatch date. Contact us for an authorisation and we will refund your purchase less shipping costs and restocking fees. All returned goods MUST be in AS NEW condition including ALL PACKAGING and DOCUMENTATION / MANUALS etc.

Please note:

  • The product returned will attract a 20% restocking fee.
  • The customer must pay the delivery costs.
  • Non standard, custom made or a specially manufactured or imported products are not returnable.
  • Semiconductors, books and software are not refundable

Full Terms and Conditions

By placing an order with Ocean Controls, you agree to be bound by our Terms and Conditions of Trade.

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