MESSKO® BETECH®
Thermometer with bellow-type technology
MESSKO® BETECH® thermometers measure the oil and winding temperature (thermal image) in power transformers. The new Modbus-compatible generation is optimized for precise digital communication and integration into systems such as ETOS® and supports both analog and digital interfaces. MESSKO® BETECH® thermometers consist of a temperature sensor connected to the expansion bellows for the measurement display via a capillary tube, as well as an additional expansion bellows for compensation of the ambient temperature. This is based on robust bellows technology. MESSKO® BETECH® thermometers therefore impress with their reliability, durability, and efficiency at high switching capacities.
Your Advantages at a Glance
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Robust expansion bellows technology
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Reliable even with high switching loads
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No readjustment or recalibration over the entire service life
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Contacts independently adjustable
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Compensation for ambient temperature
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Inspection glass made of composite safety glass with integrated UV filter
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Extremely durable and reliable
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Simple integration into ETOS® via RS485 Modbus RTU or 4...20mA
Product Information
| Operating temperature | -40...+70 °C | |
| Ambient air temperature | -40...+70 °C | |
| Corrosion protection class | C4H and CX (offshore) | |
| Degree of protection | IP 55 in accordance with EN60529 (optional: IP 65) | |
| Cable gland | Up to 3 x M20 and 1 x M16; ½” NPT; Pg16 adapter; M20 x 1.5 WADI (offshore), others on requestOutput | 4...20 mA; 4...20 mA and 5 VDC; 0-5 V DC; Pt100; Modbus RTU RS 485 |
| Number of switches | 2, 3, 4, 5 or 6 | |
| Measuring range | Oil temperature: 0...+150°C or -20...+130°C or 0...+160°C or -40...+160°C; other ranges on request | |
| Accuracy | ± 3 °C (30-150 °C) / optional: ± 2°C or ± 1.5°C); according to IEC 60076-22-01:2019 | |
| Sensor gland | Square flange 4–holes; G3/4"; G1"; 7/8"-14UNF; other thread joints on request |
| Measuring range | 0 - 150° C or -20 - 130° C or 0 - 160° C or -40 - 160° C; other ranges on request |
| Display accuracy | ± 3° C (30 - 150 °C) (optional: ± 2 °C or ± 1.5 °C) |
| Installation | Indoors and outdoors, tropic-proof |
| Ambient temperature | -40 - 70 °C (optional: polar version down to -60 °C) |
| Insulation voltage | 2.5 kV 50 Hz 1 min |
| Degree of protection | IP 55 in accordance with EN60529 (optional: IP 65) |
| Outputs | 4-20 mA; 4-20 mA and 5 V DC; 0-5 V DC; Pt100; Modbus RTU RS 485 |
| Weight | Approx. 4 kg |
Micro-switches |
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| Number | 2, 3, 4, 5 or 6 |
| Contact load | Standard SPDT 250 V AC / 15 A; (optionally: MBO, DPDT or gold plated SPDT) |
| Switch hysteresis | 12 ± 2 °C; others on request |
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| Operating temperature | -40...+70 °C | |
| Ambient air temperature | -40...+70 °C | |
| Corrosion protection class | C4H and CX (offshore) | |
| Degree of protection | IP 55 in accordance with EN60529 (optional: IP 65) | |
| Cable gland | Up to 3 x M20 and 1 x M16; ½” NPT; Pg16 adapter; M20 x 1.5 WADI (offshore), others on requestOutput | 4...20 mA; 4...20 mA and 5 VDC; 0-5 V DC; Pt100; Modbus RTU RS 485 |
| Number of switches | 2, 3, 4, 5 or 6 | |
| Measuring range | Oil temperature: 0...+150°C or -20...+130°C or 0...+160°C or -40...+160°C; other ranges on request | |
| Accuracy | ± 3 °C (30-150 °C) / optional: ± 2°C or ± 1.5°C); according to IEC 60076-22-01:2019 | |
| Sensor gland | Square flange 4–holes; G3/4"; G1"; 7/8"-14UNF; other thread joints on request |
| Measuring range | 0 - 150° C or -20 - 130° C or 0 - 160° C or -40 - 160° C; other ranges on request |
| Display accuracy | ± 3° C (30 - 150 °C) (optional: ± 2 °C or ± 1.5 °C) |
| Installation | Indoors and outdoors, tropic-proof |
| Ambient temperature | -40 - 70 °C (optional: polar version down to -60 °C) |
| Insulation voltage | 2.5 kV 50 Hz 1 min |
| Degree of protection | IP 55 in accordance with EN60529 (optional: IP 65) |
| Outputs | 4-20 mA; 4-20 mA and 5 V DC; 0-5 V DC; Pt100; Modbus RTU RS 485 |
| Weight | Approx. 4 kg |
Micro-switches |
|
| Number | 2, 3, 4, 5 or 6 |
| Contact load | Standard SPDT 250 V AC / 15 A; (optionally: MBO, DPDT or gold plated SPDT) |
| Switch hysteresis | 12 ± 2 °C; others on request |
Select language
