Process Controllers

 ATC990 Process Controller

ATC990 Process Controller

The ATC 990 with graphic / text LCD display is a universal input controller with advanced functions including trend display, digital inputs, data logging and USB port. It provides a cost-effective way to control process parameters, for example for extrusion applications. Designed to increase efficiency and user comfort, it includes features that reduce commissioning time, simplify operation and minimize maintenance downtime. Automatic tuning, setting of external power supply alarms, various inputs (temperature / pressure).

The ATC 990 can also operate and control the process based on differential pressure if the optional mv / v input is used. Other useful information displayed directly on the top of the controller by means of LEDs is alarms, upper or lower limits, error states and beacons of engineering units. The control unit provides quick and easy setup, which includes a step-by-step setup wizard that starts automatically the first time it is started.
An optional 24 V DC power supply is also available.

 ATC990 Process Controller

ATC990 Process Controller

 ATC990 Process Controller

ATC990 Process Controller

 ATC990 Process Controller

ATC990 Process Controller

 ATC990 Process Controller

ATC990 Process Controller

 ATC990 Process Controller

ATC990 Process Controller

Performance characteristics:


Device type:
Digital closed loop PID controller for panel mounting
160 x 80 monochrome graphic LCD display with backlight
± 0.1% of full scale,± 1LSD (± 1 ° C for indoor CJC, if allowed)
  DC Linear: ± 0.1% of full scale, ± 1LSD
  Sampling time: 50mS, typical

Controller inputs:


Strain gauge, thermocouple or linear (Vdc, mA)
Strain gauge:
350 to 5000Ω, 1.4 to 4mV / V, excitation 10V ± 7%
Linear input:
0 to 5Vdc and 0 to 10Vdc, 0 to 20mA and 4 to 20mA
  Input signal: -25 to 125% in full range (approximately -10mV to + 50mV)
  Input impedance: <10 Ω for linear current input, 165kΩ for linear voltage input
  Short circuit calibration: With or without resistance (40 to 100% of range)
  Digital: - 25% to + 125% of full scale (approximately -10 mV to +50 mV)
Calibration: 4 programmable voltage-free closing of contacts

Alarm outputs:


Alarm type:
SPST 2A max @ 240Vac resistive load Two relays have a common share
Number of alarms:
3 standard
Alarm update time:
100mS, typical

Controller outputs:


Type (retransmission):
0-5Vdc and 0-10Vdc, 0-20mA and 4-20mA
  Type (control): 0-5Vdc and 0-10Vdc, 0-20mA and 4-20mA
15 3/4 bitů
0.1% output range (mA @ <500Ω, V @> 500Ω)
  Standards and certifications: CE. Pollution degree 2, installation of category II "UL Listed"

Control functions:


Adaptive auto-tuning algorithm Serial communication interface
Isolated RS-485
  Protocol: Modbus RTU

Controller communication:


Isolated RS-485
Modbus RTU

Mechanical characteristics:


Using the screw on the back
Front panel:
IP65 with seal (front USB connector IP65)
  Operating temperature: 32 to 122 ° F (0 to 50 ° C)
  Storage temperature: - 4 to 158 ° F (-20 to 70 ° C)
  Humidity: 85% relative humidity, non-condensing
  Weight: 1,43 libry. (650 g)

Approval and certification:


CE marking:
Own certification according to valid standards
Agency approval:

Indicator power supply:


Network power consumption:
Low power version:
100 až 240Vac, 50 / 60Hz přepínání 
20 to 48 Vac 50 / 60Hz 25VA or 22 to 65Vdc 12W
  Power consumption: 15VA, max
Transmitter power supply:
24Vdc up to 400Ω min, 60mA drive for 2 or 4-wire mA transmitters




Certification & Approval

EU Declaration of Conformity for Flush Mount mV/V  Output

ISO 9001:2015

EAC - The Eurasian Conformity mark 

GOST Approval 

RoHS Compliance Fact Sheet

Safety Integrity Level - SIL2