Petzl I'D S Self-Braking Descender/Belay Device
This technical notice provides detailed instructions for the safe and effective use of the Petzl I'D S self-braking descender and belay device. It covers all aspects from initial setup to advanced usage scenarios, emphasizing safety and proper technique.
1. Field of Application
The Petzl I'D S is a Personal Protective Equipment (PPE) designed for fall protection from heights and rescue operations. It meets the requirements of Regulation (EU) 2016/425 and relevant international standards such as EN 12841 Type C, EN 341 Class A, EN 15151-1, NFPA, and ANSI/ASSP Z359.4.
2. Nomenclature
The device consists of a moving side plate (1), safety gate (2), axle (3), cam (4), brake plate (5), handle (6), attachment hole (7), safety gate locking hole (8), safety gate locking screw (9), anti-error catch (10), holes for auxiliary brake (11), and the brake side of the rope (12). The handle has three positions: Stop (a), Descent (b), and Storage (c).
3. Inspection and Verification Points
Regular inspection is crucial for safety. Petzl recommends a thorough inspection by a competent person at least every 12 months, or more frequently depending on usage intensity. Before each use, check for any damage, wear, or corrosion on all parts. Ensure the safety gate and handle function correctly. During use, monitor the product's condition and connections. Note that blocking and braking performance can vary with rope condition and usage environment.
4. Compatibility
Ensure compatibility with other system components, such as harnesses (EN 1497 or EN 813), and use only compatible ropes within the specified diameter range (10-11.5 mm). The I'D S can be used with the CAPTIV positioning bar for optimal connector positioning.
5. Functional Principle and Test
The I'D S locks the rope in one direction and allows it to slide in the other. Rope friction on the cam rotates the cam, pinching the rope against the brake plate. The handle allows gradual release of the lock. The AUTO-LOCK system automatically blocks the load, and the anti-panic function stops the descent if the handle is pulled too far. Always hold the brake side of the rope.
6. Installing the I'D S
Install a locking carabiner to attach the I'D S to a harness or anchor. Ensure the rope is installed in the correct direction, as indicated by the icons on the device. Close the moving side plate and check the safety gate closure. For rescue kits or when necessary, the safety gate can be locked with the provided screw.
7. Rope Access
For rope access (EN 12841 Type C), the device is used for progression on rope. The working load limit is 150 kg for one person, and up to 200 kg for two people in rescue situations with 10.5-11.5 mm ropes. Keep the rope between the I'D S and the anchor as taut and vertical as possible to minimize fall and pendulum risks.
8. Rescue Descender
For rescue (EN 341 Class A / GB/T 38230-2019), the device has a maximum descent energy of 7.5 MJ. Minimum load is 30 kg. Ropes tested and their specifications are provided. Adhere to the specified descent limits and ensure the device is protected from environmental conditions if left installed. Gloves are recommended to avoid burns.
9. Usage on a Harness
For descending, gradually pull the handle while holding the brake side of the rope. Add friction if needed by passing the rope through an additional carabiner or auxiliary brake. Ensure the handle returns to the stop position before releasing the rope. The I'D S can be moved up the rope at any time without manipulating the handle for occasional ascents.
10. Belay Device/Descender
As a belay device (EN 15151-1 Type 8), it is used for belaying in climbing and similar activities. Always hold the brake side of the rope when the climber is moving. Giving slack involves pressing the cam with your thumb while holding the brake side of the rope. Lowering is done by gradually pulling the handle, always holding the brake side of the rope.
11. Usage on an Anchor
The brake side of the rope must pass through a directional carabiner on the anchor or through an auxiliary brake. When lowering from an anchor, gradually pull the handle while holding the brake side of the rope. Giving slack involves pressing the cam with your thumb while holding the brake side of the rope. Ensure the handle returns to the stop position before releasing the rope.
12. Limitations on Use
Observe limits on mass, length, speed, and compatible ropes. Factors like rope condition and temperature can affect performance. Extreme use conditions may increase the risk of losing control or damaging the rope. Take extra precautions such as adding friction or reducing speed.
13. Additional Information
The I'D S is not suitable for fall-arrest systems. Dynamic overload can damage the rope. Always have a rescue plan and the necessary means to implement it. Ensure anchor points meet standards (min. 12 kN). Check clearance below the user before each use. Users must be medically fit for activities at height. Follow instructions for all associated equipment. Keep instructions for use in a permanent file. Retire equipment if it has exceeded its lifespan, been subjected to a major fall or load, fails inspection, or its history is unknown.
Accessories
Available accessories include an open auxiliary brake for occasional extra friction and a closed auxiliary brake for permanent extra friction (e.g., rescue kit). Use a torque wrench for specific accessory installations.
Warranty
A 3-year warranty is provided against material or manufacturing defects, excluding normal wear and tear, oxidation, modifications, improper storage, poor maintenance, negligence, and uses for which the product is not designed.
Warning Symbols
Understand the warning symbols: 1. Imminent risk of serious injury or death. 2. Potential risk of accident or injury. 3. Important information on product function or performance. 4. Equipment incompatibility.
Traceability and Markings
Key markings include CE conformity, notified body numbers, traceability datamatrix, rope diameter and working load limit, serial number, year and month of manufacture, batch number, individual identifier, standards, instructions for use reminder, model identification, rope direction, maximum descent length and operating temperature, handle positions, NFPA and ANSI/ASSP certification body, and manufacturer address.
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