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Emerson A6210 Thrust Differential Expansion Module with Triple-Redundant Thrust Protection
Emerson A6210 Thrust Differential Expansion Module with Triple-Redundant Thrust Protection
Triple-Redundant Thrust Protection A6210 Module
40ms Response Time Thrust Differential Expansion Module
Differential Expansion Monitoring Emerson Monitoring Module
Place of Origin:
USA
Brand Name:
Emerson
Model Number:
A6210
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Product Details
Estimated Shipping Size:
24x17x6.5cm
Weight:
0.42 Kg
Shipping:
TNT, DHL, FedEx, EMS, UPS
Operating Temperature:
0° - 65°C (32° - 149°F)
Storage Temperature:
-30° - 85°C (-22° - 185°F)
Relative Humidity:
5 - 95%, Non-condensing
Power Consumption:
Max. 6 W, 250 MA At 24 VDC
Configuration:
Password Protected
Highlight:
Triple-Redundant Thrust Protection A6210 Module
,40ms Response Time Thrust Differential Expansion Module
,Differential Expansion Monitoring Emerson Monitoring Module
Payment & Shipping Terms
Minimum Order Quantity
1
Price
66USD
Packaging Details
Brand new and original
Delivery Time
2-3 work days
Payment Terms
T/T
Supply Ability
in stock
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Product Description
The A6210 monitor operates in three distinct modes: thrust position, differential expansion, or rod position monitoring. In thrust position mode, it precisely tracks axial shaft movement and provides machine protection by comparing measured thrust position with alarm setpoints to activate alarms and relays. Shaft thrust represents one of the most critical parameters on turbomachinery, requiring detection of even small axial shifts within 40 milliseconds to prevent catastrophic rotor-to-case contact. This measurement utilizes one to three non-contact displacement sensors mounted axially at the shaft end or thrust collar, with redundant sensors and voting logic recommended for enhanced safety. Thrust bearing temperature measurement serves as a valuable complementary monitoring approach. For applications demanding the highest safety standards, the A6250 monitor offers triple-redundant thrust protection on a SIL 3-rated overspeed platform.
The A6210 can also be configured for differential expansion monitoring. As both turbine case and rotor expand with changing thermal conditions, differential expansion measures the relative growth between a case-mounted displacement sensor and its shaft-mounted target. When case and shaft expansion rates are similar, the differential expansion value remains close to zero. This mode supports tandem/complementary or cone/ramp configurations and delivers critical operational insight during turbine start-up and normal operation.
Additionally, the A6210 supports average rod drop mode for monitoring rider band wear in reciprocating compressors. Over time, gravity acting on horizontally oriented pistons causes rider bands to wear, and excessive wear can allow piston-to-cylinder wall contact, leading to progressive damage and potential failure. Average rod drop tracking helps identify this condition early, enabling maintenance scheduling before machine integrity becomes compromised.
Physical Specifications
| Card Format | PCB/EURO card format according to DIN 41494, 100 x 160 mm (3.937 x 6.300 in) |
| Width | 30.0 mm (1.181 in) (6 TE) |
| Height | 128.4 mm (5.055 in) (3 HE) |
| Length | 160.0 mm (6.300 in) |
| Net Weight | Approx. 320 g (0.705 lbs) |
| Gross Weight | Approx. 450 g (0.992 lbs) - includes standard packing |
| Packing Volume | Approx. 2.5 dm³ (0.08 ft³) |
| Space Requirements | 1 slot |
| Rack Capacity | 14 modules fit into each 19" rack |
Frequently Asked Questions
What applications can the A6210 be used for?
The A6210 offers flexible operation across three distinct modes. It can be configured for Thrust Position (monitoring axial movement), Differential Expansion (tracking thermal growth), or Rod Position (monitoring compressor wear). Simply configure the module for your specific monitoring requirement.
Why is Thrust Position monitoring critical?
Axial shaft shifts present significant operational hazards. Excessive movement risks catastrophic rotor-to-case contact. The A6210 detects even minute shifts within 40 milliseconds, triggering alarms and relay trips to prevent machine damage.
How many sensors are recommended for thrust monitoring?
While a single sensor can be used, we strongly recommend implementing redundant sensors (up to three) with voting logic for enhanced safety. Additionally, thrust bearing temperature monitoring provides valuable complementary protection.
What about applications requiring SIL 3 level protection?
For critical applications demanding triple-redundant protection and SIL 3-rated overspeed safety, consider the A6250 monitor. While the A6210 provides reliable monitoring, the A6250 delivers the highest safety standards for SIL 3 applications.
How does Differential Expansion monitoring work?
During turbine operation, both the case and rotor expand at different rates due to thermal conditions. This mode measures the relative growth difference between them. Optimal operation maintains values near zero, which is particularly critical during start-up to prevent rotating and stationary component interference.
Can the A6210 monitor reciprocating compressor rider band wear?
Yes, the Rod Position (Rod Drop) mode specifically addresses this application. Gravity-induced wear on horizontally oriented pistons causes rider band deterioration over time. This monitor tracks the resulting drop, enabling early detection and maintenance scheduling before piston-to-cylinder wall contact occurs.
Need a part? We've got you covered.
We are a global supplier dedicated to maintaining your industrial systems—whether you require the latest technology or vintage replacement components.
Our Product Range: PLCs, HMIs, DCS, Drives, and Sensors.
Why clients choose us:
• Hard-to-find component specialists
• Global shipping to your location
• Expert technical support—no automated systems
Contact for quotation:
Miya Zheng | Sales Manager
Call/Text: +86 180 2077 6792
Email: sales@amikon.cn
Our Product Range: PLCs, HMIs, DCS, Drives, and Sensors.
Why clients choose us:
• Hard-to-find component specialists
• Global shipping to your location
• Expert technical support—no automated systems
Contact for quotation:
Miya Zheng | Sales Manager
Call/Text: +86 180 2077 6792
Email: sales@amikon.cn
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