lineGrip lineScale 3
A revolutionary digital all-in-one bluetooth dyno / load cell. PPE certified, 1280Hz (<1ms) fast, 30kN WLL, and unique onboard-logging of up to 50 hours. The huge load eyes and 90kN breaking strength make it perfectly suited as a generous master point for any type of rigging challenge.
The LineScale-3 is a crowdfunded project which was launched on Dec. 16th 2020, and fully funded 4 days later. The funders’ investment will pay for hardware- and software development, PPE-Certification, and production of 1000 units,
Development was started on Dec. 30th, and the retail units are expected to hit the shelves in Sept. 2021.
Join the lineScale project group for more information and development status posts: www.facebook.com/groups/lineScale.3.project/
Current production status as of March 15th: The prototype is almost finished and should arrive here in the next 2 weeks for extensive testing and verification.
The first 111 units will be sold for 12% discount (- $100), the next units for 6% discount until the LineScale is available from stock. From there on it will sell for MSRP $795.
> Get your lineScale with 12% discount today, as long as it’s still in development.
Jump directly to your subject of interest below:
• Specs
• Key details
• On-board logging
• OLED display
• Versatility
• Accuracy
• Bluetooth
• Power Management
• Scan rate
• Safety
The following images are in part pictures and in part 3D renderings.
The pictures of the golden units are of the predecessor LineScale-2 for demonstration purposes (body size and shape is identical to LS3).
Safety is Paramount
This device is milled out of one solid block of high-tensile aviation aluminum (LY12CZ), giving it a whopping 90kN MBS. In terms of safety this is the best deal you can get. Theres no bolts, screws, rings, pistons or joints that could possibly fail… this is the security of mind you need when leaving the scale in the rope access rig while working on it, or in the highline rig while walking it! Independent break testing resulted in a mind blowing 110kN! (see below)
The LineScale-3 is PPE certified to give you peace of mind when your life depends on it. This certification also makes the LS3 suitable for industries such as rope access, height workers, event riggers, arborists, rescue workers, stunt riggers, etc., and PPE professionals of any kind.
Working Principle
The lineScale works by the priciple of material micro deformation: Wikipedia – Strain Gauge
User Configurable
A threshold load value can be set in the Android and iOS app to sound an alarm when reached.
The displayed unit (kg, lb, kN) and the auto power off time can easily be selected and saved as preset by the user.
Unique on-board logging
The lineScale-3 is equipped with an industry unique on-board logging feature which facilitates recording up to 50 hours usage logs to device memory.
These log files can be downloaded later via USB connection to a PC running the included LS-Pro-Log software, or at any time to a USB stick by simply plugging it into the LineScale’s Micro-USB port.
Logging can be adjusted manually through the Log-Menu:
• Onboard memory logging (on/off)
• Overwrite oldest log (on/off)
• Capture scan rate Hz (10, 40, 640, 1280)
• Capture start trigger value (load)
• Capture end trigger value (load)
• Max. capture time length (seconds)
• Pre-trigger recording (on/off)
This unique feature enables you to monitor the loads your rig is subjected to all day long, and later lets you assess if any of the components are seeing alarming loads. All the log points are timestamped so you can even evaluate when, and during which activity these high loads occur.
> Learn more about on-board logging
Graphic OLED backlight display
State of the art electronics demand a good display.
To get all the necessary information displayed on screen and make menu navigation as easy as possible, we chose a graphical display for the LS3. Modern OLED technology minimizes battery drain by the backlight, and offers the best readability under any light conditions.
A 1.5mm break proof polycarbonate screen protects the display against the harsh conditions it might be faced with.
> Learn more about the OLED display
Versatility
The lineScale 3, with its 90kN MBS, is perfectly suited as a bomber, generously dimensioned, nicely organized anchor master point – also known as “rigging plate” – for your rig.
The large omnidirectional, cross-load proof eyelets are chamfered with a 4mm radius and can easily accommodate 6-8 strands of 10mm rope from your equalizing anchors, which makes multi connector management an ease.
High Accuracy
The 24-bit high definition AD-converter with dual strain gauge configuration has a resolution of 1kg with a measuring error of less than ±0.25% (inside the “sweet spot” area of 300kg – 1500kg / 3kN – 15kN, which is 10-50% of WLL.
> Learn more about accuracy
Bluetooth Connectivity
An integrated Bluetooth-4 interface connects the lineScale to your smartphone for configuration, and load value reading and recording.
Apps for iOS and Android devices are included with the lineScale.
> Learn more about Bluetooth and Apps
Power Management
The powerful 1350mAh Li-Ion battery pack gives the lineScale-3 an endurance of up to 30 hours continuous operation (ca. 20h with Bluetooth enabled and in “fast” scan mode).
If no load change is registered for the preset shutoff interval, the device will auto power off. It was essential for us to assure, that the scale does NOT calibrate its sensors to 0 when powered on, but immediately shows the current load. This enables you to power off and on manually anytime when you need a load reading. This makes your scale go for weeks without having to recharge.
If power does run low, you may recharge at any time during operation (e.g. with a powerbank).
> Learn more about power management
Scan Rate
The max. sensor scan rate (cycle rate) is a whopping 1280Hz, meaning the lineScale reads and calculates the sensor load every 0.8ms, which makes it sensitive enough to capture almost any peak loads. The second, slower scan rate is 640Hz and is used to reduce the data rate of the USB connection or save space in on-board log memory.
Due to speed limitations of the Bluetooth interface the above rates can’t be used for BT connection to smartphones. BT fast mode is therefore 40Hz (25ms). To save battery power you may toggle the lineScale to “slow” scan rate (10Hz / 100ms) which is sufficient for simple load tension monitoring for rigging.
> Learn more about scan rate
SAFETY!
The true unibody manufacturing, milled from one solid block of high strain aluminum alloy, gives the LS3 a generous 9:1 safety factor for PPE applications.
The PPE certification process demands annual full production auditing in the factory to ensure manufacturing is and remains PPE compliant.
US based Ryan Jenks from How NOT to Highline break tested the lineScale-2 for us on June 19. 2020. Since the bodies of LS2 and LS3 are identical in terms of material, size and shape, the LS3 will perform just as the LS2 in terms of true MBS.
The result: a whopping 110kN breaking strength!!! 🤘
> See Ryan’s exciting “live” Insta Vid
(the actual break test is at 6:00)
> See Ryan’s full LineScale torture video on YouTube
> or the same video on Facebook
> Learn more about safety