LBT-HW-131 Safety Harness Comprehensive Tester (Overall Dynamic Load, Overall Static Load)
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LBT-HW-131 Safety Harness Comprehensive Tester (Overall Dynamic Load, Overall Static Load)
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Description
Product Introduction:
Manufactured in accordance with GB/T 6096 and GB 6095, it is primarily used for conducting overall dynamic load (belt‑impact) and overall static load tests on safety belts. It is widely employed by specialized labor protective equipment supervision and inspection stations, research institutes of construction science, construction engineering quality‑testing centers, power‑sector organizations, and safety‑belt manufacturers.
Applicable Standards
GB/T 6096 “Test Method for Performance of Fall Protection Safety Harness Systems”
GB 6095 “Safety Harness for Fall Protection”
Host Structure:
1. The main frame consists of six 14#×5 galvanized square tubes, which have been treated with an anti-rust coating and subjected to professional finite-element analysis of load-bearing capacity, ensuring the overall safety and stability of the test rig.
2. The entire test‑rig system is designed according to industrial‑grade principles and can be customized to meet specific customer requirements, including but not limited to all‑welded or bolted construction, non‑standard dimensions and configurations, vertical, spiral, or inclined stair‑type ladders, as well as safety‑barrier‑integrated power‑off mechanisms for door openings. (The image shows a customer‑specific custom design; the standard configuration features a vertical ladder.)
3. The test rig is designed in a scientifically sound and rational manner, ensuring that the dynamic load test and the static load test of the safety harness are conducted independently and do not interfere with each other.
4. The static test mounting platform is equipped with symmetrical process holes, facilitating on-site installation.
Control System:
1. The overall control system employs a PLC–touchscreen architecture, with all relevant operations performed via the touchscreen.
2. The touch screen is from a well-known domestic brand, and the PLC is a Mitsubishi model with built-in high-capacity RAM. It features a TFT LCD display with a 4-wire precision resistive touchscreen, paired with a 400 MHz high-speed CPU for faster response and enhanced processing performance.
3. The static test employs a high-ratio, two-stage geared reducer with a brake, enabling static constant‑speed loading in compliance with the relevant standards, at a loading rate of less than 100 mm/min. The reducer is equipped with ultra‑low‑temperature gear oil to ensure reliable operation down to –35°C.
4. The static test employs automated closed-loop control, enabling automatic maintenance of the force–time profile.
5. The touch screen allows users to manually enter the set test force values (standard values are 15 kN, 4.5 kN, and 2.0 kN) and the holding time (corresponding durations are 300 s, 120 s, and 120 s). When the set time elapses, an automatic audible alarm will sound.
6. The touch screen displays the test force value, hold-down countdown, test curve, test status, Beijing time, and other information.
Protection System:
1. The test stand is equipped with a vertical guard cage ladder to ensure operator safety.
2. Key components such as sensors, static reducers, and impact elevators shall be equipped with rain‑proof and other protective measures to extend the service life of the equipment.
3. The elevator is equipped with limit switches to ensure that, in the event of reaching the travel limits, the system automatically stops operating for protection.
4. The impact release mechanism is connected via a PUR helical spring cable, offering excellent resistance to UV degradation, superior high- and low-temperature performance, and outstanding wear resistance.
5. Equipped with a safety operating platform at the dynamic testing suspension point, ensuring operator safety.
6. Equip with dummy‑release safety straps to prevent unsafe belt breakage, mitigate the hazards of a falling dummy, and protect the dummy from damage.
Force Measurement System:
1. The dynamic force sensor employs a U.S.-made PCB ICP‑technology transducer, offering excellent stability, a long service life, and high accuracy.
2. The static force sensor is from a well-known domestic brand.
3. The PLC is equipped with an integrated force‑value data processing system that can automatically perform data acquisition, analysis, and output display.
4. The touchscreen automatically displays and locks the maximum dynamic force value.
5. The sensitivity of the dynamic sensor can be calibrated via touchscreen input, facilitating data management.
6. Both the dynamic and static force sensors are weather-resistant, ensuring reliable operation down to –35°C.
Technical Specifications:
| Parameter Name | Technical Specifications |
| Dynamic force sensor | Measurement range: 0–20 kN; frequency response: not less than 5 kHz; accuracy: ±1.5% |
| Dynamic Data System | Sampling frequency: 20 kHz; sampling time: 38 ms; measurement lower limit: 1,000 N; accuracy: 1 N. |
| Static force sensor | 0~30 kN, accuracy 0.5% |
| Static Data System | Sampling frequency: 5 kHz; real-time acquisition; acquisition lower limit: 300 N; accuracy: 0.01 kN. |
| Static stretching range | 0~5500mm |
| Static stretching speed | Less than 100 mm/min |
| Static stretching duration | 0–999 seconds; set the duration via the touchscreen, and an automatic alarm will sound when the timer expires. |
| Instrument power supply | AC 380V, 50Hz |
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