COMET H4331 – Temperature controller for external Pt1000 probe, 2 relays
€230.00
COMET H4331 Temperature Controller Pt1000 RS232 2 Relays
The COMET H4331 is a powerful and universal temperature controller with RS232 output for external Pt1000 sensors and an enormous measuring range from –200 °C to +600 °C. Whether for cryogenics, deep-freeze applications, industrial furnaces, drying processes or laboratory use – with just one device you can cover virtually every temperature control task.
Two potential-free relay outputs (2 A / 50 V / 60 VA) directly switch heaters, coolers, solenoid valves, fans, or alarms. If the temperature exceeds the set limits, a loud acoustic alarm is also triggered – maximum safety even without a network. Three binary inputs detect external conditions such as door/window open, overheating protection, or emergency stop.
The RS232 interface with Modbus RTU protocol (and Advantech ADAM compatible) makes the H4331 the ideal component in control and monitoring systems. Configuration is completed within minutes via the free TSensor software or directly on the large dual-line display.
A robust IP65 housing, operating temperature from –30 to +80 °C, and the ability to connect any Pt1000 probe (e.g. cryo, immersion, penetration, surface sensors) make the H4331 a true all-rounder in professional temperature control.
Your advantages with the COMET H4331:
- Gigantic range –200 to +600 °C with external Pt1000 probe
- 2 potential-free relays – direct load switching up to 60 VA
- Integrated acoustic alarm – immediately audible on site
- 3 binary inputs for external signals
- RS232 Modbus RTU – seamless integration into any automation
- Accuracy ±0.2 °C, resolution 0.1 °C
- Large dual-line display – switchable
- IP65 enclosure – for harsh environments
- Free TSensor software for configuration & calibration
- 3-year warranty
Technical data:
- Measuring range: –200 to +600 °C (depending on the Pt1000 probe)
- Accuracy: ±0.2 °C (without probe)
- Resolution: 0.1 °C
- Input: external Pt1000/3850 ppm sensor
- Relay outputs: 2 × potential-free, max. 50 V / 2 A / 60 VA
- Binary inputs: 3 × dry contact / open collector (not galvanically isolated)
- Communication: RS232, Modbus RTU, Advantech ADAM
- Acoustic alarm: built-in beeper, switchable
- Power supply: 9–30 V DC
- Protection rating: IP65 (electronics), IP40 (sensors)
- Operating temperature: –30 to +80 °C
- Warranty: 3 years
Perfectly suited for:
- Cryogenic and deep-freeze systems
- Industrial furnaces and drying processes
- Laboratory and test stand technology
- Refrigeration, air conditioning, and ventilation systems
- Pharmaceutical production and cleanrooms
- Food production (baking ovens, deep-freeze applications)
- Machine and plant monitoring
- Process control with extreme temperatures
Installation & commissioning – incredibly simple
Connect the Pt1000 probe, wire the relays and binary inputs, connect power and RS232 – done. Switching points, hysteresis, and alarm delay can be set within minutes via TSensor software or directly on the device.
Summary:
- Temperature transmitter for Pt1000 sensor with two relay outputs
- For indoor and outdoor use
- For external Pt1000 temperature probe (NOT INCLUDED IN DELIVERY)
- Three bidirectional inputs
Scope of delivery:
- H4331 – (probe not included – must be ordered separately)
- User manual
- Traceable calibration certificate
- Free TSensor software for transmitter configuration
Temperature Transmitter with RS232 Output
Measured Values
- Temperature
- Binary state signal
Temperature Sensor
- Type: External Pt1000 probe (Not included in delivery)
- Measuring range: −200 to +600 °C
- Accuracy: ±0.2 °C
- Resolution: 0.1 °C
Relay Outputs
- Quantity: 2
- Maximum voltage: 50 V
- Maximum current: 2 A
- Maximum power: 60 VA
Binary Inputs
- Quantity: 3
- Signal types: potential-free contact, open collector, or binary voltage signal
- Inputs not galvanically isolated
- Minimum pulse duration: 500 ms
- Voltage on open contact: < 3.3 V
- Low level: 0 to +0.5 V
- High level: +3.0 to +30 V
General Technical Data
- Operating temperature: −30 to +80 °C
- Number of channels: 1× external temperature probe
- Acoustic alarm: integrated, switchable
- Output: RS232
- Temperature compensation of the humidity sensor: across full temperature range
- Available temperature units: °C, °F
- Communication protocols: ModBus RTU, Advantech ADAM (compatible)
- Power supply: 9–30 V DC
- Protection class: IP65 electronics; IP40 sensors
- Dimensions: 136 × 213 × 45 mm; probe length: 75 mm
- Weight: approx. 350 g
- Warranty: 3 years
Available temperature probes
Manufacturer Information:
COMET SYSTEM, s.r.o.
Bezručova 2901
756 61 Rožnov pod Radhoštěm
Czech Republic
Phone: +420 571 653 990
Email: info@cometsystem.com
Responsible person:
Didactum® Security GmbH
Marsweg 17
48163 Münster
Deutschland
Fon: +49 - 2501 - 9 78 58 80
Email: info@didactum-security.de
