HT instruments GEO416 User Manual
Page 5

GEO416
-
GEO416GS
EN - 4
2. GENERAL DESCRIPTION
This instrument will grant you accurate and reliable measurements provided that is used 
according to the instructions given in this manual. You will enjoy the highest safety thanks 
to a development of newest conception assuring double insulation and over voltage 
category III. 
 
2.1. INSTRUMENT DESCRIPTION 
 
EARTH 2W: 2-wire earth resistance measurement
EARTH 3W: 3-wire earth resistance measurement
ρ: 4-wire ground resistivity measurement.
3. PREPARING THE INSTRUMENT
3.1. INITIAL CHECK 
This instrument was checked both mechanically and electrically prior to shipment. All 
possible cares and precautions were taken to let you receive the instrument under perfect 
conditions. 
 
Notwithstanding we suggest you to check it rapidly to check any damage which may have 
occurred during transport. Should it be the case please contact immediately the forwarder 
or your dealer. 
 
Make sure that all standard accessories mentioned in the enclosed packing list (see § 9.3) 
are included in the packaging. In case of discrepancies contact your dealer. Should you 
have to return back the instrument for any reason please follow the instructions mentioned 
under § 10. 
 
3.2. POWER SUPPLY 
The instrument is powered by batteries (see § 9.1.2). The battery charge is displayed on 
the right top side. The symbol 
indicates that batteries are fully charged, while the
symbol
indicates that batteries are low and shall be replaced.
 
To replace/insert batteries follow the instructions indicated under § 8.2. 
 
3.3. CALIBRATION 
The instrument complies with the technical specifications reported in this manual and such 
a compliance Is guaranteed for one year after purchase date. 
 
3.4. STORAGE 
After a period of storage under extreme environmental conditions exceeding the limits let 
the instrument resume normal measuring conditions before using it (see § 9.2.1). This 
precaution will grant accurate measurements without risking to damage the instrument. 
