Temperature sensor with two relay outputs and RS485 — N4531
Available on request
Delivery across Russia
Order phone: +7(800)777-18-50
Description
The converters are equipped with two relay outputs for signaling, indication, or control of external devices. Delay, hysteresis, and sound signal settings are included for each relay. Parameters are easily adjustable using a computer or the keyboard on the sensor's front panel. The converter is controlled by a microprocessor housed in a durable plastic case with connection terminals. A large two-line LCD display is designed to simultaneously show two parameters. The display can be turned off if necessary. Some models are equipped with discrete inputs.
Applications
- Ventilation systems
- Agricultural industry
- Healthcare
- Transport
- Air quality control:
- Schools
- Business centers
- Shopping complexes
- Museums, theaters, cinemas
- Conference halls, etc.
Package contents
- The sensor itself
- Calibration certificate
- Brief user manual
ATTENTION, the device is currently discontinued.
- Specifications
- Overall dimensions drawing
- Connection diagram
- Applications
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H4531 |
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Output signal |
2x Relay + RS485 |
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Temperature |
Range |
-200 to +600°C |
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Accuracy |
±0.2°C (without temperature probe) |
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Discrete input |
3 inputs |
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Maximum switchable voltage, current and power by relay output |
50V, 2A, 60VA |
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Power supply voltage |
9 - 30 V |
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Sensor protection class |
IP40 |
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Operating temperature range of sensor |
From -30 to +80°C |
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Operating humidity range (without condensation) |
0 to 100 %RH |
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Storage temperature range |
From -30 to +80°C |
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Recommended calibration interval |
1 year |
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Dimensions / Weight |
136 x 160 x 45 mm (W xHx D) / 340 g |
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Discrete inputs are not galvanically isolated, the +U terminals are internally connected to the power supply device (the +U terminals provide the same voltage level as the power supply voltage).
Connecting the relay and its power supply to the outputs of the H4531 sensors:

Relay output parameters
Voltage – max 50 V
Power Current
– max 60 VA
– max 2 A
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