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| Description |
Series 8840 temperature switch adopts solid OLED display screen, which can display text very well. The display screen is slightly tilted, which is convenient for the operator to easily read the displayed temperature value from a long way off.
Series 8840 temperature switch adopts 3-key operation makes simple, intuitive menu navigation possible, with no need for additional assistance.
The installation of the series 8840 temperature switch can be flexibly adapted to the individual mounting situation. Due to the almost unlimited rotation of the display and case by more than 180°, the display can be adjusted independently of the electrical connection. The display can thus always be aligned to face the operator, and the M12×1 connection positioned to suit the desired cable routing. |
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| Technical Specification |
| Type |
8840 |
| Name |
Temperature Switch |
| Measuring element |
Pt100 |
| Measuring range |
-50 ... +150°C |
| Measuring element tolerance value per IEC 60751 |
Class B、Class A |
| Accuracy |
Pt100 + 0.1% of the temperature range |
| Response time |
t50 < 5、t90 < 10 (for sensor diameter 6 mm) |
| Sensor diameter |
6、8mm |
| Sensor insertion length |
50、100、150、200 、250、300（Max. 500)mm |
| Process connection |
G1/2", G1/4" male thread (others on request) |
| Tightening torque, recommended |
20Nm |
| Display |
5-digits-OLED-Display |
| Supply voltage |
12 ... 30 V DC |
| Analog output signal |
4 ... 20 mA, 2-wires |
| Switch output signal |
Transistor：PNP、NPN |
| Switch power rating |
Max.500mA |
| Reproducibility |
≤ ± 0.05% |
| Ambient temperature |
-30 ... +80°C |
| Storage temperature |
-40 ... +100°C |
| Housing |
Stainless Steel |
| Material of sensor tube |
Stainless Steel |
| Electrical connection |
M12×1，5-Pin |
| Reverse polarity and short circuit protection |
Yes |
| Protection degree |
IP65 |
| Applications |
Machine tools |
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Hydraulics |
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Coolant and lubrication systems |
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Machine building |
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Features |
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• Measuring ranges from -50°C to 150°C |
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• Switch output PNP, support switch action delay |
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• Configurable analogue output |
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• E-connection: M12×1, 5-Pin |
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• Max-memory |
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• Process connection G1/2 ", G1/4 " and others |
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中文