Page 2 - Product identification; as well as instructions for
2 SNLL121-2.1.0en © Leica Geosystems Product identification The model designation and the serial number of your product canbe found on the data plate outside of the housing. Enter model andserial number in your User Manual, and always refer to thisinformation when you need to contact your agency or ...
Page 3 - death or serious injury.; Symbols used in this manual
© Leica Geosystems SNLL121-2.1.0en 3 The symbols used in this User Manual have the followingmeanings: DANGER: Indicates an imminently hazardous situation which, ifnot avoided, will result in death or serious injury. WARNING: Indicates a potentially hazardous situation or anunintended use which, if n...
Page 4 - Contents
4 SNLL121-2.1.0en © Leica Geosystems Symbols used in this manual ..................................... 3 Contents ....................................................................... 4 Description of Instrument .......................................... 5 Sensor Nadir Laser plummet type SNLL121 ....
Page 5 - Description of Instrument; Sensor Nadir Laser plummet type SNLL121; For centering the tripod over ground points.
© Leica Geosystems SNLL121-2.1.0en 5 Description of Instrument Sensor Nadir Laser plummet type SNLL121 • For centering the tripod over ground points. • For general-purpose plumbing. • For mounting reflector holders and sensors. Lalot03
Page 6 - Functions; Function AutoOff; This function is always active.
6 SNLL121-2.1.0en © Leica Geosystems Functions ON/OFF Function AutoOff The laser plummet is switchedoff automatically after fourminutes. This function is always active. Lalot05 Press briefly for switching onthe laser plummet.
Page 7 - Weak battery; Laser weak
© Leica Geosystems SNLL121-2.1.0en 7 Weak battery Always have sparebatteries with you. This will ensure that work canbe completed withoutdiscontinuation. Laser brightness The brightness adjustmentremains active even afterswitching off the laser plummet. Permanent pressing changesbrightness of laser....
Page 8 - Replacing batteries; Pull out battery holder and
8 SNLL121-2.1.0en © Leica Geosystems Replacing batteries Always replace thecomplete battery set. • Do not use old and newbatteries together. • Do not use batteries fromdifferent manufacturers orbatteries of different types. • For type of battery, refer toTechnical Data. Lalot08a 1. Remove cover. 2. ...
Page 9 - Setting up; Setting up over ground point
© Leica Geosystems SNLL121-2.1.0en 9 Setting up 1. Set up tripod with tribrach asvertically as possible above theground point. 2. Insert laser plummet into thetribrach and switch on. 3. Turn the base screws of thetribrach until the laser spotcoincides with the ground point. No objects betweenlaser p...
Page 10 - Always lock laser plummet in the tribrach!
10 SNLL121-2.1.0en © Leica Geosystems 4. By adjusting the length ofthe tripod legs level-up thecircular level. 5. By turning the footscrewslevel-up the spirit level (mid-point). Now the tribrach isleveled up exactly. 6. Shift the tribrach on thetripod until the laser spotcoincides again with the gro...
Page 11 - Checking and Adjusting; Checking by turning the instrument by 360°:
© Leica Geosystems SNLL121-2.1.0en 11 If the centre of the laser spot makes a clearly circular movement orif the centre of the spot moves away more than 1mm from the firstmarked point an adjustment may be necessary. Call your nearestLeica Geosystems service workshop. Checking and Adjusting Under nor...
Page 12 - Adjusting the spirit level; Correct half of deviation (
12 SNLL121-2.1.0en © Leica Geosystems Depending on brightness and surface the size of the laser spot canvary. At a distance of 1.5 m its average diameter is 2.5 mm. The maximum diameter of the circular movement described by thecentre of the laser spot should not exceed 1 mm at a distance of1.5 m. 1....
Page 13 - When dispatching the equipment, always use the; Care and Storage
© Leica Geosystems SNLL121-2.1.0en 13 Transport: When dispatching the equipment, always use the complete original optional Leica Geosystems packaging. Whentransporting the equipment in the field, always make sure to:• either carry the instrument in its original optional transport caseor • carry the ...
Page 14 - When storing the equipment, particularly in summer
14 SNLL121-2.1.0en © Leica Geosystems Storage: When storing the equipment, particularly in summer and inside a vehicle, take the storage temperature limits (-40°C to+ 70°C / -40°F to +158°F) into account. Damp instruments must be unpacked. Dry theinstrument, the case, the foam inserts and the access...
Page 15 - Intended use of instrument; Permitted uses; Safety Directions
© Leica Geosystems SNLL121-2.1.0en 15 The following directions should enable the person responsible forthe laser plummet, and the person who actually uses theinstrument, to anticipate and avoid operational hazards.The person responsible for the instrument must ensure that allusers understand these d...
Page 16 - Limits to use
16 SNLL121-2.1.0en © Leica Geosystems WARNING: Adverse use can lead to injury, malfunction, andmaterial damage. It is the task of the person responsible for the instrument to inform the user about hazards and how tocounteract them. The product is not to be used until the user hasbeen properly instru...
Page 17 - Responsibilities of the person in charge of the instrument:; Responsibilities
© Leica Geosystems SNLL121-2.1.0en 17 Responsibilities of the person in charge of the instrument: WARNING : The person responsible for the instrument must ensurethat it is used in accordance with the instructions. This person is also accountable for the training and deployment ofpersonnel who use th...
Page 18 - Main hazards of use; Do not carry out field surveys during thunderstorms.; Hazards of use
18 SNLL121-2.1.0en © Leica Geosystems Main hazards of use WARNING: The absence of instruction, or the inadequate impartingof instruction, can lead to incorrect or adverse use, and can give rise to accidents with far-reaching human, material,financial and environmental consequences. Precautions: All ...
Page 19 - sites and at industrial installations.
© Leica Geosystems SNLL121-2.1.0en 19 WARNING: Inadequate securing of the surveying site can lead todangerous situations, for example in traffic, on building sites and at industrial installations. Precautions: Always ensure that the surveying site is adequately secured.Adhere to the local regulation...
Page 20 - The product must not be disposed with household
20 SNLL121-2.1.0en © Leica Geosystems If the product is improperly disposed of, the followingcan happen:If polymer parts are burnt, poisonous gases are produced which may impair health.If batteries are damaged or are heated strongly, they can explodeand cause poisoning, burning, corrosion or environ...
Page 21 - Laser classification; The product is a Class 2 laser product in accordance with:; Do not look directly into the beam with optical equipment.
© Leica Geosystems SNLL121-2.1.0en 21 Laser classification The laser plummet produces a visible laser beam emerging fromthe underside of the instrument. The product is a Class 2 laser product in accordance with: • IEC 60825-1:1993 "Safety of laser products". • EN 60825-1:1994 + A11:1996 "...
Page 22 - Labelling
22 SNLL121-2.1.0en © Leica Geosystems Labelling Lalot16 This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that...
Page 23 - Laser beam
© Leica Geosystems SNLL121-2.1.0en 23 Type: SNLL121 Art.No.: ...... Power: 6V=nominal, 200mA max.Leica Geosystems AGCH-9435 HeerbruggManufactured:2004 S.No.: ...... Made in Switzerland Lalot20 Lalot19 Lalot15a Laser beam outlet(visible) Laser beam (visible) CAUTION: Only Leica Geosystems authorized ...
Page 25 - Reorient or relocate the receiving antenna.
© Leica Geosystems SNLL121-2.1.0en 25 WARNING: This equipment has been tested and found to complywith the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.These limits are designed to provide reasonable protection againstharmful interference in a residential installation. Th...
Page 26 - authority to operate the equipment.
26 SNLL121-2.1.0en © Leica Geosystems WARNING: Changes or modifications not expressly approved byLeica Geosystems for compliance could void the user's authority to operate the equipment. Product labelling: This device complies with part 15 of the FCC Rules.Operation is subject to the following two c...
Page 27 - II; Technical Data
© Leica Geosystems SNLL121-2.1.0en 27 Location of laser in the centre; turns withinstrument Accuracy max. diameter of the circularmovement of the laser point: ≤ 1.0 mm / 1.5 m Diameter of laser spot 2.5 mm / 1.5 m Level sensitivity 30" / 2 mm Automatic switch-off ~ 4 min. after key is last press...
