Instrument Set-up
Introduction
The safety instructions and the user manual should be read through carefully before the product is used for the first time. The person responsible for the product must ensure that all users understand these directions and adhere to them.
Symbols
- WARNING: Indicates a potentially hazardous situation or an unintended use which, if not avoided, will result in death or serious injury.
- CAUTION: Indicates a potentially hazardous situation or an unintended use which, if not avoided, may result in minor injury and/or appreciable material, financial and environmental damage.
- Important: Paragraphs which must be adhered to in practice as they enable the product to be used in a technically correct and efficient manner.
Overview
The device features a display, an 'On/Measure/Tracking' button, an 'Area/Volume/Pythagoras/Min./Max. Tracking' button, a 'Clear/Off' button, and a measuring reference/unit indicator.
Insert Batteries
To ensure a reliable use, do not use zinc-carbon batteries. Change batteries when the battery symbol is flashing. The battery compartment is located at the rear of the device.
Operations
Switching ON/OFF
- Press the 'Clear/Off' button once to undo the last action.
- Press the 'Clear/Off' button for 2 seconds to turn the device OFF.
- Press the 'On/Measure/Tracking' button to turn the device ON and enter the default operation mode.
Adjusting Measuring Reference
The device can measure from the front (default) or the rear. A diagram illustrates aiming the laser from the front for one measurement and from the rear for another.
Distance Unit Setting
Press the 'Clear/Off' button for 2 seconds to switch between units: meters (m), feet (ft), inches (in), and fractions of an inch (e.g., 1/16).
Beep ON/OFF
Press the 'Clear/Off' button and the 'On/Measure/Tracking' button simultaneously for 2 seconds to toggle the beep sound ON or OFF.
Measuring Functions
Measuring Single Distance
Aim the active laser at the target and press the 'On/Measure/Tracking' button. The measured distance is displayed.
Permanent Measuring
Aim the active laser at the target and press and hold the 'On/Measure/Tracking' button for 2 seconds. The device continuously measures and displays the distance. Press the button again to stop.
Area Measurement
Press the 'Area/Volume/Pythagoras/Min./Max. Tracking' button once. Aim the laser at the first target point and press 'On/Measure/Tracking'. Aim at the second target point and press 'On/Measure/Tracking' again. The result is shown on the main line and the measured value above.
Volume Measurement
Press the 'Area/Volume/Pythagoras/Min./Max. Tracking' button twice. Aim the laser at the first target point, then the second, and finally the third. The result is displayed.
Pythagoras (2-point)
Press the 'Area/Volume/Pythagoras/Min./Max. Tracking' button three times. Aim the laser at the upper point, then at the lower point (rectangularly). The result is displayed.
Pythagoras (3-point)
Press the 'Area/Volume/Pythagoras/Min./Max. Tracking' button four times. Aim the laser at the upper point, then at the rectangular point, and finally at the lower point. The result is displayed.
Note: Pressing the measuring key for 2 seconds within a function activates Minimum or Maximum measurement automatically.
Minimum Tracking
Press the 'Area/Volume/Pythagoras/Min./Max. Tracking' button five times. The device tracks and displays the minimum measured distance.
Maximum Tracking
Press the 'Area/Volume/Pythagoras/Min./Max. Tracking' button six times. The device tracks and displays the maximum measured distance.
Note: Min/Max measurement is also available for Pythagoras calculations.
Technical Data
This section details the device's specifications, including accuracy, range, laser class, power, dimensions, weight, and operating temperatures.
| Specification | Value | Notes |
|---|---|---|
| Accuracy (favourable conditions) | ±1.5 mm / 0.06 in | ISO 16331-1 |
| Accuracy (unfavourable conditions) | ±3.0 mm / 0.12 in | |
| Range (favourable conditions) | 0.05-60 m / 0.16-197 ft | |
| Range (unfavourable conditions) | 40 m / 132 ft | |
| Smallest unit displayed | 1 mm / 1/16 in | |
| Laser point at distances | 6/30 mm (10/50 m) | |
| Laser class | 2 | 635 nm, < 1 mW |
| Laser type | Diode laser | |
| Autom. laser switch off | after 90 s | |
| Autom. power switch off | after 180 s | |
| Battery durability (2 x AAA) | up to 5000 measurements | |
| Dimension (H x D x W) | 100 x 54 x 30 mm / 3.94 x 2.13 x 1.18 in | |
| Weight (with batteries) | 100 g / 3.21 oz | |
| Temperature range: Storage | -25 to 70°C / -13 to 158°F | |
| Temperature range: Operation | 0 to 40°C / 32 to 104°F |
Favourable conditions: white and diffuse reflecting target, low background illumination, moderate temperatures.
Unfavourable conditions: targets with lower/higher reflectivity, high background illumination, temperatures at upper/lower end of specified range.
Tolerances: apply from 0.05 m to 10 m with 95% confidence level. Tolerances may deteriorate for distances above 10 m under specific conditions.
Functions supported: Distance measuring, Min/Max measuring, Permanent measuring, Area, Volume, Pythagoras (2-point, 3-point), Display illumination.
Message Codes
If the 'Error' message does not disappear after switching on the device repeatedly, contact the dealer. If the 'Info' message appears with a number, press the 'Clear' button and observe the following:
| No. | Cause | Correction |
|---|---|---|
| 204 | Calculation error | Perform measurement again. |
| 252 | Temperature too high | Let device cool down. |
| 253 | Temperature too low | Warm device up. |
| 254 | Battery voltage too low for measurements | Change batteries. |
| 255 | Received signal too weak, measuring time too long | Change target surface (e.g. white paper). |
| 256 | Received signal too high | Change target surface (e.g. white paper). |
| 257 | Too much background light | Shadow target area. |
| 258 | Measurement outside of measuring range | Correct range. |
| 260 | Laser beam interrupted | Repeat measurement. |
Care
- Clean the device with a damp, soft cloth.
- Never immerse the device in water.
- Never use aggressive cleaning agents or solvents.
Warranty
Stabila provides a two-year warranty for the Stabila LD 320. Further information can be found on the Internet at: www.stabila.de
Safety Instructions
The person responsible for the instrument must ensure that all users understand these directions and adhere to them.
Areas of Responsibility
Responsibilities of the manufacturer of the original equipment:
STABILA Messgeräte Gustav Ullrich GmbH, P.O. Box 1340/D-76851 Annweiler, Landauer Str. 45/D-76855 Annweiler.
USA/Canada:
STABILA Inc., 332 Industrial Drive, South Elgin, IL 60177, 1.800.869.7460.
The company is responsible for supplying the product, including the User Manual, in a safe condition. Not responsible for third-party accessories.
Responsibilities of the person in charge of the instrument:
- Understand safety instructions and user manual directions.
- Be familiar with local safety regulations relating to accident prevention.
- Prevent access to the product by unauthorised personnel.
Permitted Use
- Measuring distances
- Tilt measurement
Prohibited Use
- Using the product without instruction.
- Using outside the stated limits.
- Deactivation of safety systems and removal of explanatory and hazard labels.
- Opening the equipment with tools.
- Carrying out modification or conversion of the product.
- Use of accessories from other manufacturers without express approval.
- Deliberate dazzling of third parties.
- Inadequate safeguards at the surveying site (e.g., on roads, construction sites).
- Deliberate or irresponsible behaviour on scaffolding, ladders, near unprotected machines or installations.
- Aiming directly in the sun.
Hazards in Use
WARNING: Watch out for erroneous measurements if the instrument is defective, dropped, misused, or modified. Carry out periodic test measurements, especially after abnormal use and before/during/after important measurements.
CAUTION: Never attempt to repair the product yourself. Contact a local dealer for damage.
WARNING: Changes or modifications not expressly approved could void the user's authority to operate the equipment.
Limits of Use
Refer to "Technical Data". The device is designed for use in areas permanently habitable by humans. Do not use in explosion hazardous areas or aggressive environments.
Disposal
CAUTION: Flat batteries must not be disposed of with household waste. Use designated collection points. The product must not be disposed of with household waste. Dispose of the product appropriately according to national regulations.
Product-specific treatment and waste management information can be downloaded from the homepage.
Electromagnetic Compatibility (EMC)
WARNING: The device conforms to stringent requirements, but interference with other devices cannot be totally excluded.
FCC Statement (applicable in U.S.)
This equipment has been tested and found to comply with Class B digital device limits per FCC Rules Part 15. These limits provide reasonable protection against harmful interference in residential installations. The equipment generates, uses, and can radiate radio frequency energy. If not installed and used per instructions, it may cause harmful interference to radio communications. No guarantee against interference in a particular installation. If interference occurs, try correcting it by:
- Reorienting or relocating the receiving antenna.
- Increasing separation between equipment and receiver.
- Connecting equipment to an outlet on a different circuit than the receiver.
- Consulting the dealer or an experienced radio/TV technician.
Laser Classification
The device produces visible laser beams. It is a Class 2 laser product according to IEC60825-1:2007. Eye protection is normally afforded by aversion responses (blink reflex).
WARNING: Looking directly into the beam with optical aids (e.g., binoculars, telescopes) can be hazardous.
CAUTION: Looking into the laser beam may be hazardous to the eyes.
Labelling
The device is labelled with laser warning symbols indicating "Laser Radiation: Do not stare into the beam". It complies with IEC 60825-1:2007, with a maximum radiant power of <1mW, wavelength 620-690nm, and specific beam divergence and impulse duration.
Manufacturer's Declaration of CE-Conformity
Dated March 16, 2012, this declaration states adherence to Directive 2004/108/EC (interference emission and resistance) and Directive 2011/65/EU (restriction of hazardous substances).
Product: Laser distance measuring instrument
Type: STABILA LD 320
Applied standards: EN 50011: 2010 (Interference emission), IEC 61000-4-3: 2010, IEC 61000-4-8: 2010 (Interference resistance).
Signed by Dipl. Ing. (FH) Daniel Busam.
