5485C-007-020 high temperature speed sensor

Model: 5485C
Design temperature range: -54°C to 375°C
Frequency response: 15 Hz to 2 kHz
Sensitivity: Optional, including 105 mV/in/sec, 145 mV/in/sec, 150 mV/in/sec, and 200 mV/in/sec
Sensitivity Temperature variation: less than 0.02%/°C
Cross-axis sensitivity: less than 10%
Maximum vibration rating: 50 g
Maximum displacement: 1.8mm (70 mils) pk-pk
Enclosure to coil isolation:
100 MΩ@ 20°C
10 MΩ@ 200°C
1 MΩ@ 375°C

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Description

Overview

Essential details：5485C-007-020 high temperature speed sensor

Product Description

The 5485C-007-020 is a high temperature speed sensor from the Metrix brand, suitable for continuous use at high temperatures up to 375°C, especially for gas turbines and other machinery with high surface temperatures where speed signals are required. The sensor uses a moving coil design that eliminates the need for an external power source and generates a self-generated signal proportional to the vibration speed. It features a zero-friction coil suspension, provides clean frequency response via two non-twisted circular spider springs, and uses pure viscous electromagnetic damping to eliminate friction-prone air damping, thereby improving detection of small vibration amplitudes at low frequencies.

The 5485C sensor can be configured with an integrated armoured cable or a removable armoured cable with a 2-pin aviation plug. The housing is made of stainless steel and the internal structure is robust to ensure durability in harsh environments.

5485C-007-020

Product parameter

Model: 5485C
Design temperature range: -54°C to 375°C
Frequency response: 15 Hz to 2 kHz
Sensitivity: Optional, including 105 mV/in/sec, 145 mV/in/sec, 150 mV/in/sec, and 200 mV/in/sec
Sensitivity Temperature variation: less than 0.02%/°C
Cross-axis sensitivity: less than 10%
Maximum vibration rating: 50 g
Maximum displacement: 1.8mm (70 mils) pk-pk
Enclosure to coil isolation:
100 MΩ@ 20°C
10 MΩ@ 200°C
1 MΩ@ 375°C
Case material: 416 stainless steel
Joint material: 316 stainless steel
Cable armor material: 302 stainless steel

APPLICATION

In addition, the sensor is UL intrinsically safe for Class 1, Div.1, Grps A-D, and non-ignitational for Class 1, Div.2, Grps A-D, CSA and IEC Intrinsic safety certifications are suitable for EEx ia IIC T6 environments with temperatures ranging from -54ºC to 375ºC.

According to the product data sheet, the 5485C sensor has an operating temperature range of -54°C to 375°C, a frequency response range of 15 Hz to 2 kHz, a maximum vibration level of 50 g, and a maximum displacement of 1.8 mm (70 mils) pk-pk. The weight of the sensor is about 0.2 kg (0.5 lb), and the weight of the armored cable is about 0.2 kg/m (0.13 lb/ft).

The installation manual provides installation guidance for the 5485C high temperature speed sensor, which is available in two versions: a version with a 2-pin connector (which requires an accompanying Model 4850-XXXX cable) and a fixed armored cable version. This sensor is suitable for large industrial gas turbine, furnace fan monitoring and other applications, and is certified for hazardous areas.

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