Sample Heating Power Supply HEAT3-PS

Power supply operated by touchscreen with dual mode heating (resistive and electron bombardment) and high efficiency.



Prevac are a world leader in the design and production of analytical and deposit scientific and research equipment. Their systems operate in a high and ultra high vacuum environment. They design and construct UHV and HV systems fully adapted to the individual requirements of research projects and industrial applications.

Key Features

  • Dual heating mode: resistive and electron bombardment
  • Wide range temperature measurement (1.4-2473.15K)
  • 2D real time chart module
  • Shutter Control – up to 2 shutters for double DC module version, 1 shutter per channel (eg. shutters of sources or manipulators)
  • High efficiency
  • Setpoint based over-voltage and over-current output protection
  • Fully manual or PID temperature controlled (by setpoint and ramp)
  • Process temperature control with built-in PID controller (with auto tuning function for optimised process PID parameters)
  • Various kind of temperature sensors: thermocouples K/C/E/N (other on request), Pt, diode
  • Multiple I/O (10 digital/4 analogue) – individual reprogrammable
  • High resolution (16-bit analogue I/O, 0.1 K temp.)
  • One vacuum channel for active gauges
  • Mobile solutions for remote access and control
  • Customised menu options (for robust and effectivity)
  • Support (easy firmware update via USB)
  • Autosave function


The power supply can also be used for effusion cell evaporators. The unit is equipped with a PID temperature controller. Ramp heating function control sample temperature to protect sample from damage. Sample overheating can also be protected by setting the voltage and current limits. The unit can be operated in auto mode (with temperature control) or manual mode (without temperature control).

Technical data

Supply voltage 100-130 VAC/200-260 VAC, 50-60 Hz (power consumption max 1600 W)
Resistance heating mode parameters 45 V, 17 A – standard; other versions on request
Electron bombardment mode parameters 1000 V, 300 mA – standard, other versions on request
Temperature range 273.15 K-2473.15 K for type C thermocouple
(dependent on sample holder type or evaporator)
73.15 K-1645.15 K for type K thermocouple
1.4-500 K for DT670/DT470 silicone diodes
(dependent on sample holder type and conditions in chamber)
Temperature independent input 2 – for thermocouples K/C/E/N
2 – for silicon diodes DT670/DT470
Temperature setpoint ramp rate adjustable from 0.1° to 1000°/ s/min/h
ΔT setpoint 0.1 to 5.0°/s
Vacuum measurement (optional) CTR90, TTR91, TTR211, PTR225, PTR90, ITR90, ITR100, Baratron, ANALOG IN, MKS937A, PG105, MG13/14, PKR251/360/361, PCR280, ATMION
Communication interface RS232/485, Ethernet
Communication protocol MODBUS-TCP
User interface 7″ TFT display with touchscreen, digital encoder
Interface languages English, German, Polish
Dimensions [mm] 448.8 x 132.5 x 375 mm (W x H x D), 19″ rack mountable
Weight (approx.) 8.8 kg (for standard version)


  • Any thermal process according to the specifications
  • Effusion cells supply
  • Sample holders heatings
  • Thermal monitoring



Instruments with Electronics Brochure

View Brochure


  • Second DC module available:
    two resisting heating zones with independent control, or
    – one resistive heating zone with higher output power (90V, 17A or 45V, 30A)
  • Analogue I/O card for vacuum measurement (1 gauge)

Service Support

Comprehensive repairs and servicing

Annual Support Programs

Your metrology instrumentation is a major investment that is critical to your business operation and success. In today’s competitive climate, it is more important than ever to extend the functionality and peak performance of your metrology equipment years beyond the expiration of your factory warranty. CN Tech’s Support Programs will help ensure that your investment is protected, and that you and your instrument’s are always operating at peak performance.

With over 20 years’ experience servicing and repairing you can be assured that your system is in safe hands. The independent services we offer include system relocation, maintenance visits, parts and consumables, and break down interventions.

CN Tech’s Support Programs are an economical way to guarantee optimal working condition:

  • Annual Preventive Maintenance
  • Priority Technical Assistance
  • Preferred Parts Availability
  • On-Site User Training
  • Remote Diagnostics
  • No surprise repair expense and much more!

Support Contact Example

An example of our service and support contracts are shown below:


Metrology & Instrumentation Annual Support Programs 2022/23

CN Tech's Support Programs will help ensure that your investment is protected, and that you and your instrument’s are always operating at peak performance.

Get in touch to discuss your requirements

Make an enquiry

Download PDF

Please calculate 8 plus 4.

Thank you

A download link has been sent to the e-mail address you provided.