Product, Order & General Inquiries +1 (800) 663-7845 (8am-4:30pm PST)
The Strain Relief Box is a rugged enclosure that mounts over the 11-pin terminal block on ACR SRX loggers — and is also fully compatible with SmartReader Plus and legacy SmartReader models. It provides a sealed cable entry system with a built-in cable gland that grips and secures the external wires so mechanical stress does not reach the terminal connections.
Important note on effective strain relief: For the strain relief box to work as intended, the cable entering the gland must behave as a single bundled section. This means the wires should be grouped together (for example, as part of a jacketed cable or bundled group) before they enter the strain relief. When the gland clamps to a single outer surface, pulling forces are absorbed by the enclosure rather than transmitted directly to the terminal screws. If individual, loose conductors are simply tightened under the gland without bundling, the strain relief will provide only limited mitigation.
By managing movement and tension this way, the strain relief system helps maintain reliable signal integrity over time, especially in environments with repeated handling, vibration, or tension — such as mobile setups, industrial sites, or long-term outdoor deployments.
Key Features:
Durable plastic housing for added protection over the terminal block
Built-in cable gland relieves strain and seals the cable entry point
Offloads mechanical stress from the terminal block connections
Best performance when probe cables are bundled before entry
Installation Tip:
Connect the wires to the terminal block first, ensuring correct polarity and leave some slack between the connection and the cable gland. For best results, group or bundle the incoming wires so the cable gland can clamp onto that bundled section before tightening. Make sure all wires are captured together, with no individual leads left loose. Then position the strain relief box over the block and secure it in place. Tighten the cable gland to grip the bundle and complete the seal.
Strain Relief and Strain Mitigation: Simple Practices That Reduce Lost Data