MESSKO® TRASY2

Indicator thermometer for distribution and power transformers

The modular MESSKO® TRASY2 temperature measuring system is suited for measuring oil and winding temperatures (thermal image) in medium or large distribution and power transformers, reactors or similar applications. The pointer thermometers are systems that function without power with freely adjustable micro-switches. The measured values are recorded by a fluid-filled temperature sensor and transmitted to the display by a spiral spring. Additional modules enable the thermal image, an additional PT100 sensor system and remote transmission.

Your Advantages at a Glance

  1. Bourdon tube measuring system without additional mechanical parts

  2. Extremely durable and reliable without readjustment or recalibration

  3. Safe function even in case of vibrations and extreme outdoor conditions

  4. Simple adjustment of gradients using DIP switch in ZT-F2.1 (thermal image of the winding temperature)

  5. Independent compensation for ambient temperature

  6. Inspection glass made of composite safety glass with integrated UV filter

  7. Can be installed in all common thermometer pockets

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Product Information

Housing (standard) Galvanized steel plate
Front ring and housing Powder-coated, bayonet ring with silicone seal
Viewing glass Laminated safety glass with built-in UV filter
Temperature sensor Bare brass
Mounting plate Stainless steel
Cable gland M25 x 1.5 nickel-plated brass
Measuring range -20 - 140° C or 0 - 160° C
Accuracy Class 1 in accordance with DIN EN 13190
Installation Indoors and outdoors, tropic-proof
Ambient temperature -50 - 80° C
Degree of protection IP55 after IEC 60529
Aeration The viewing glass resists fogging up to 80% relative humidity thanks to an aerator
Trailing indicator All thermometers have a resettable red trailing indicator
Weight Approximately 2.5 kg (6 m capillary line)
Micro-switches
Number 1 - 6 adjustable micro-switches (1 - 4 changeover contacts)
Contact load For adjustable micro-switches in accordance with IEC 60947-5-1
Switching distance 6% of the measuring range
Contact material Silver alloy (AgNi10)
Rated insulation voltage AC: 2,500 V / 1 min
Switch hysteresis Approximately 5 K
Connecting terminal Min. 0.25 mm² / max. 2.5 mm²

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Technical data
Housing (standard) Galvanized steel plate
Front ring and housing Powder-coated, bayonet ring with silicone seal
Viewing glass Laminated safety glass with built-in UV filter
Temperature sensor Bare brass
Mounting plate Stainless steel
Cable gland M25 x 1.5 nickel-plated brass
Measuring range -20 - 140° C or 0 - 160° C
Accuracy Class 1 in accordance with DIN EN 13190
Installation Indoors and outdoors, tropic-proof
Ambient temperature -50 - 80° C
Degree of protection IP55 after IEC 60529
Aeration The viewing glass resists fogging up to 80% relative humidity thanks to an aerator
Trailing indicator All thermometers have a resettable red trailing indicator
Weight Approximately 2.5 kg (6 m capillary line)
Micro-switches
Number 1 - 6 adjustable micro-switches (1 - 4 changeover contacts)
Contact load For adjustable micro-switches in accordance with IEC 60947-5-1
Switching distance 6% of the measuring range
Contact material Silver alloy (AgNi10)
Rated insulation voltage AC: 2,500 V / 1 min
Switch hysteresis Approximately 5 K
Connecting terminal Min. 0.25 mm² / max. 2.5 mm²

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