geo-FENNEL Receivers for Rotating Laser FR 77-MM Tracking User Manual
- June 9, 2024
- geo-FENNEL
Table of Contents
Receivers for Rotating Laser FR 77-MM Tracking
User Manual
Receivers for Rotating Laser FR 77-MM Tracking
Dear customer,
Thank you for your confidence in us having purchased a geo-FENNEL instrument.
This manual will help you to operate the instrument appropriately.
Please read the manual carefully – particularly the safety instructions. A
proper use only guarantees a longtime and reliable operation.
geo-FENNEL
Precision by tradition.
SUPPLIED WITH
- Laser receiver FR 77-MM
- 4 x AA alkaline batteries
- Clamp for levelling rod
- Special mount
- User manual
Technical Data
| 3 accuracy settings | ± 2 mm / ± 5 mm / ± 9 mm |
|---|---|
| mm-indication accuracy | ± 1 mm |
| Working range with class 2 laser | 150 m |
| Working range with class 3R laser | 350 m |
| Length of the receiving window | 125 mm |
| Length of the receiving area for mm-indication | 100 mm |
| Offset range (0SET) / from reference point | ± 20 mm |
| Measuring units | mm, cm, in, in-fraction |
| Signal tones | 3 |
| LCD display | front, rear |
| LED height indicators | front, side, rear |
| Power supply / Operating times | Alkaline / 110 h |
| Temperature range | -10°C to +50°C |
| Display illumination | yes |
| Magnets | top, side |
| Bubble vials | top, side |
| Dust / water protection | IP 67 |
| Dimensions | 170 x 77 x 32 mm |
| Weight | 0,5 kg |
FEATURES
- For use with red beam rotating lasers
- Extra long receiving window
- mm-indication of height difference between the laser plane and the reference point
- The segments of the display increase / decrease proportianally
- The „0“ position can be changed (Offset)
- Display illumination (front and rear)
- Robust clamp
- Special mount for diverse connections, e. g. scaffolding
FEATURES
| ON/OFF button| Power ON/OFF the receiver
---|---|---
| Accuracy button| Select accuracy setting
| UNITS button| Select units of measure
| Sound/illumination button| Sound and/or illumination ON/OFF
| 0SET button| Set a relative ZERO position
POWER SUPPLY
INSERT / REPLACE BATTERIES
Open the battery compartment cover on the rear of the receiver and insert 4 x
AA alkaline batteries Refer to the battery compartment diagram to ensure
correct polarity. Close the battery compartment cover.
Always remove the batteries if the receiver will not be used for a long period
of time to avoid leakage.
BATTERY STATUS INDICATOR
The FR 77-MM front LCD display has four power status symbols.
The receiver will automatically power off when the batteries are empty.
AUTOMATIC POWER-OFF
If the receiver does not receive a laser beam or is not operated for 10
minutes it will automatically power off.
OPERATION
POWER ON
Press the ON/OFF button once to power on the receiver.
The LCD display will initialise taking about 0.5 seconds when all the display
symbols are illuminated (see diagram, left).
The receiver is now ready for use (see diagram, right).
SELECT ACCURACY SETTING
Power on the unit and select the receiving accuracy fine, normal or coarse by
pressing the „accuracy button“. The default accuracy setting following Power
is „Fine“.
SWITCH ON /OFF THE SOUND
Power on the receiver and press the button „Sound/illumination“ to select the
sound and volume required. The symbols in the LCD display show the status of
the sound and volume.
SWITCH ON/OFF THE DISPLAY ILLUMINATION
Power on the receiver and keep the button „Sound/illumination“ pressed until
the illumination is on.
SELECT THE UNITS
Power on the receiver and press the „UNITS“ button sucessively until the
required unit symbol appears in the display.
RECEIVE A LASER BEAM
Power on the receiver and make all required settings (i. e. accuracy fine,
sound high).
Carefully move the receiver up and down to detect the laser beam.
Indication 1
The laser beam is high „arrow“ is illuminated.
Acoustic signal: Slow beep. ->Move the receiver up.| Indication 2
The laser beam is low „arrow“ is illuminated.
Acoustic signal: Fast beep. ->Move the receiver down.| Indication 3
The LED „0-position“ bar is illuminated.
Acoustic signal: Continuous beep. -> On level.
PLEASE NOTE:
If the distance between the rotating laser and the receiver is less than 1 m
erroneous measurements may occur.
MM INDICATION
If the reference level of the receiver is e. g. 18 mm below the laser beam
this height difference will be displayed by an exact numerical value (see the
left diagram).
| The laser beam is exactly on-level.| The laser beam is 19 mm above the
reference point (move the receiver
up).| The laser beam is 35 mm below the
reference point (move the receiver
down).
RELATIVE 0-POSITION (REFERENCE POINT)
Within the range of ± 20 mm of the standard reference point (0-position) a
relative 0-position can be set. Press the „0SET“ button when the laser beam
hits the receiving window (the „0SET“ symbol will flash on the display). This
current position of the laser beam is now set as the relative 0-position on
the receiver. Press the „0SET“ button to return to the default mode.
APPLICATION
Connect the clamp to the receiver for use with a laser pole, levelling staff
or similar accessory.
For optimum accuracy always level the bubble vials on the receiver before
taking measurements.
SPECIAL MOUNT
To increase the versatility and scope of the receiver a special mount is
provided (see illustrations).
SAFETY NOTES
SAFETY INSTRUCTIONS
- Follow up the instructions given in the user manual.
- Do not stare into the beam. The laser beam can lead to eye injury. A direct look into the beam (even from greater distance) can cause damage to your eyes.
- Do not aim the laser beam at persons or animals.
- The laser plane should be set up above the eye level of persons.
- Use the instrument for measuring jobs only.
- Do not open the instrument housing. Repairs should be carried out by authorized workshops only. Please contact your local dealer.
- Do not remove warning labels or safety instructions.
- Keep the instrument away from children.
- Do not use the instrument in explosive environment.
- The user manual must always be kept with the instrument.
CARE AND CLEANING
Handle measuring instruments with care. Clean with soft cloth only after any
use. If necessary damp the cloth with some water. If the instrument is wet
clean and dry it carefully. Pack it up only if it is perfectly dry. Transport
in original container / case only.
SPECIFIC REASONS FOR ERRONEOUS MEASURING RESULTS
Measurements through glass or plastic windows; dirty laser emitting windows;
after the instrument has been dropped or hit. Please check the accuracy.
Large fluctuation of temperature: If the instrument will be used in cold areas
after it has been stored in warm areas (or the other way round) please wait
some minutes before carrying out measurements.
ELECTROMAGNETIC ACCEPTABILITY (EMC)
It cannot be completely excluded that this instrument will disturb other
instruments (e.g. navigation systems); will be disturbed by other instruments
(e.g. intensive electromagnetic radiation nearby industrial facilities or
radio transmitters).
CE-CONFORMITY
The instrument has the CE-mark according to EN 61000-6-3:2007, EN
61000-6-1:2007, IEC 60825-1:2008-05.
WARRANTY
This product is warranted by the manufacturer to the original purchaser to be free from defects in material and workmanship under normal use for a period of two (2) years from the date of purchase. During the warranty period, and upon proof of purchase, the product will be repaired or replaced (with the same or similar model at manufacturers option), without charge for either parts or labour. In case of a defect please contact the dealer where you originally purchased this product. The warranty will not apply to this product if it has been misused, abused or altered. Without limiting the foregoing, leakage of the battery, bending or dropping the unit are presumed to be defects resulting from misuse or abuse.
EXCEPTIONS FROM RESPONSIBILITY
- The user of this product is expected to follow the instructions given in the user manual. Although all instruments left our warehouse in perfect condition and adjustment the user is expected to carry out periodic checks of the product’s accuracy and general performance.
- The manufacturer, or its representatives, assumes no responsibility of results of a faulty or intentional usage or misuse including any direct, indirect, consequential damage, and loss of profits.
- The manufacturer, or its representatives, assumes no responsibility for consequential damage, and loss of profits by any disaster (earthquake, storm, flood etc.), fire, accident, or an act of a third party and/or a usage in other than usual conditions.
- The manufacturer, or its representatives, assumes no responsibility for any damage, and loss of profits due to a change of data, loss of data and interruption of business etc., caused by using the product or an unusable product.
- The manufacturer, or its representatives, assumes no responsibility for any damage, and loss of profits caused by usage other than explained in the user‘ manual.
- The manufacturer, or its representatives, assumes no responsibility for damage caused by wrong movement or action due to connecting with other products.
geo-FENNEL GmbH
Kupferstraße 6
D-34225 Baunatal
Tel. +49 561 / 49 21 45
Fax +49 561 / 49 72 34
[email protected]
www.geo-fennel.de
All instruments subject to technical changes. Precision by tradition.