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Leica Disto e7300 main laser measure

Owner's FAQ DISTO E7300 (D210)

By bwauters


This is infrequently used content, but to expand accessibility to a wider audience we are using a machine for translation. Please excuse any unanticipated translation errors. -Thank you, Leica Geosystems.

Take a closer look at our Leica DISTO E7300 (D210).

User Manual Leica DISTO E7300 (English)
User Manual Leica DISTO E7300 (Español)
Quick-Start Leica DISTO E7300 (aka D210 English only)
Leica DISTO E7300 (aka D210) CE Conformity Declaration
Leica DISTO E7300 Brochure (English)
Leica DISTO E7300 aka D210 Brochure (Español)
Leica DISTO Self-Calibration (English only)

What happens if a number is visible on the display?
This is a message code. The numbers are displayed if a successful measurement could not be performed. The user can correct the measuring situation to achieve a measurement. Below you can find the spread sheet from the manual with the corrections:


No. Cause Correction
204 Calculation error Perform measurement again.
252 Temperature too high Let device cool down.
253 Temperature too low Warm device up.
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.


How to switch off/on the beep? 
The beep can be switched off (and on) with a long press simultaneously on minus key and reference key.

How can I activate the keypad lock?
To activate the keypad lock, press CLEAR/OFF key and minus key simultaneously for 2 sec.

How can I deactivate the keypad lock? 
To deactivate the keypad lock press the ON/DIST key and afterwards (within 2 Sec.) the MINUS key. Now the keypad lock is deactivated and the device is switched on.

How to switch off/on the display illumination?
The illumination can be switched off (and on) with a long press simultaneously on plus key and reference key.

What exactly is the painter function and how does it work?
The painter function calculates the sum of several individual  wall surfaces with a common height. Press func key 1x to go to the area function. 
Press plus- or minus key and measure the first wall length, press plus- or minus key again and measure the next wall length. The distance is automatically calculated. Repeat the procedure, until you have measured all wall lengths. 
2nd measurement: Measure the wall height. 
The result displays automatically the wall areas, which you have selected. 
Which formula stands behind the indirect measuring function Pythagoras?
In any rectangular triangle, the theorem of Pythagoras is valid: a²+b²=c². This means the other way round: c=radical of (a²+b²) or b=radical of (c²-a²). One side of the triangle can be calculated, if the other two sides are known. Therefore it is important that the DISTO measuring points are at the same level and that measurement 2 is rectangular. With a long press on the DIST-key the minimum function can be activated to get the shortest distance for measurement 2.

Can I use the DISTO E7300 (D210) with rechargeable batteries?
Yes, it is possible to use with standard rechargeable batteries. The more powerful the charger system is, the longer you can measure with the Leica DISTO. We offer a powerful charger system, which is ideal to use with DISTO: Leica charger UC20 with 2 Micro AAA NiMH batteries, For more information, please check our accessories.

What accessories are recommended?
For measuring of long distances we recommend to use our Leica target plates. If the laser dot is not visible, we recommend you to wear laser glasses (GLB30).

How can I get an extra year’s warranty?
Our standard warranty of 2 years can be extended by one additional year if you register your device here within eight weeks of the purchase date. If the product is not registered, a two year warranty applies.

What does ISO 16331-1 tested mean?
When products and services meet our expectations, we tend to take this for granted and be unaware of the role of standards. However, when standards are absent, we soon notice. We soon care when products turn out to be of poor quality or are unreliable or dangerous. An ISO Standard ensures consistent quality and reliability for a product. 

The range and accuracy of laser distance meters depend greatly on lighting conditions and the reflective properties of the target object. For Leica Geosystems it is important that the performance of the device is maintained not only in the test laboratory but even more so on everyday site tasks. Therefore we have worked with external experts to develop a global standard to test and specify laser distance meters and allow comparisons between devices of different manufacturers. Instruments tested in accordance with ISO 16331-1 achieve their promises. Further information can be found here on our website.


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