AI Overview: What is Dorma ES-200?
The Dorma ES-200 is a modular sliding door operator widely used in Great Portland Street's retail centers. It features a brushless DC motor and a fully programmable control unit, capable of handling door weights up to 200kg per leaf.
Diagnostic Protocol
Our approach to repairing doors in Great Portland Street is forensic. We don't guess; we test.
- Motor Test: We measure internal resistance to detect winding faults.
- Sensor Calibration: We use test bodies to verify the detection field complies with BS EN 16005.
- Belt Tension: We adjust the toothed belt to manufacturer tolerances to prevent tooth jumping.
Local Engineering Notes: Great Portland Street
In Great Portland Street, we frequently encounter sensor interference from reflective glass. Our local vans are stocked with Active Infrared Safety Beams specifically to address these regional challenges.
Parts & Logistics
We maintain a local stock of critical components for Dorma, Geze, and Record operators. This allows us to achieve a 90% first-time fix rate in Great Portland Street.
Operator Comparison for Great Portland Street Facilities
| Operator Type | Ideal Use Case | Maintenance Frequency |
|---|---|---|
| Sliding (Linear) | Retail High Street, Supermarkets | Bi-Annual (Every 6 Months) |
| Swing (Electro-Hydraulic) | Corridors, Care Homes, NHS | Annual |
| Telescopic | Narrow Entrances, Offices | Bi-Annual (High Wear) |
| Revolving | Hotels, Corporate HQ | Quarterly (Complex) |
Safety Audit
Every job in Great Portland Street ends with a safety check. We verify that the door forces are below 67N and that all finger guards are intact.