User Manual
GMC-I Messtechnik GmbH 13
5 Internal database
5.1 Creating Test Structures, General
A complete test structure with data regarding customer buildings, 
floors, rooms and devices under test can be created in the test 
instrument. This structure makes it possible to assign single mea-
surements or test sequences to devices under test belonging to 
various customers. Manual single measurements can be grouped 
together into a so-called “manual sequence”.
Objects can be identified with the following parameters: 
•
DUT
 (
ID
, designation, type, manufacturer, serial number, com-
ment, cost center
*
, department
*
)
• Room* (ID and designation)
• Floor* (ID and designation)
• Building* (ID, designation, street, ZIP code and city)
• Property* (ID and designation)
• Customer (ID, designation, street, ZIP code and city)
* only with database extension Z853R or with feature KB01
Key
ID = identification number
5.2 Transmitting and Saving Test Structures and Measurement 
Data
The following functions are possible (as far as the test instrument 
is concerned):
• Export: Transfer a structure including measured values from 
the test instrument to the PC (ETC) (see section 5.2.1).
• Import*: Transfer a distributor structure from the PC (ETC) to 
the test instrument (SECUTEST PRO only) (see section 5.2.2).
• Backup*: Backup a database to a USB flash drive (FAT format-
ted, not NTFS) plugged into the test instrument (see section 
5.2.3).
• Restore*: Restore a database to the test instrument from a 
USB flash drive (FAT formatted, not NTFS) plugged into the 
test instrument (see section 5.2.3).
• Reports: Save reports to a USB flash drive (see section 3.8).
* only with database extension Z853R or with feature KB01
If no USB flash drive has been plugged in, the above listed func-
tions are displayed in gray and are disabled.
In order to transfer structures and data, the test instrument and 
the PC must be connected with a USB cable or a USB flash drive 
must be available.
Please observe the following safety precautions:
Attention!
!
During data transmission via the USB port (USB connec-
tion to the PC or connection of a USB drive), neither the 
interface cable nor the USB drive may be disconnected.
Attention!
!
The test instrument may not be disconnected from sup-
ply power during transmission via the USB port. The 
memory structure in the test instrument might otherwise 
be destroyed.
Note
Data transfer to the PC (ETC) should not be started 
during single measurements or test sequences.
5.2.1 Export – Transmitting Test Structures and Measurement 
Data from the Test Instrument to the PC
Structures set up in, and measurement data saved to the test 
instrument can be exported to ETC report generating software via 
a connected USB flash drive (only with database extension 
Z853R or with feature KB01), or via the USB slave port. Select 
Export ETC file under Setup > Database 2/2 to this end. The data 
are converted to an ETC-compatible format with the “etc” file 
extension. 
ETC is started at the PC by double clicking the exported file and 
the data are read in. Data can then be saved to the PC and 
reports can be generated.
The most up-to-date version of ETC report generating software 
can be downloaded free of charge from the mygmc page of our 
website as a ZIP file, if you have registered your test instrument:
http://www.gossenmetrawatt.com 
→ Products → Software →  Software for Testers 
→
 Report Soft-
ware without Database 
→
ETC 
→
 myGMC
5.2.2 Import – Uploading Test Structures Created in ETC to the 
Test Instrument (only with database extension Z853R or 
with feature KB01)
As an alternative, a test structure can be created at the PC with 
the help of ETC software and then transferred to the test instru-
ment via a connected USB flash drive or via the USB slave port. 
Select the Import ETC file function to this end under Setup > Data-
base 2/2. The ETC data are converted to a format which is com-
patible with the test instrument.
A complete description of database creation can be found in the 
online help included with ETC software.
The same safety precautions apply here as was also the case in 
the section covering export.
5.2.3 Backing Up and Restoring Test Structures and 
Measurement Data
Structures created and measurement data saved at the test 
instrument can be backed up via an inserted USB flash drive (FAT 
formatted, not NTFS). Select the Backup function to this end under 
Setup > Database 2/2. The test instrument creates a DATABASE 
directory at the USB flash drive (if it doesn’t already exist) and 
generates a backup file.
Up to firmware 1.5.4:
If there’s already a backup file in this directory, you’re asked if it 
should be overwritten. A new backup with the same name is only 
create if you respond to the prompt in the affirmative with the   
icon.
As of firmware 1.6.0:
The backup files on the USB stick are named by means of a time 
stamp (file extension: .etcbak).
In order to restore structures and data from an inserted USB flash 
drive, select the restore function under Setup > Database 2/2. The 
test instrument accesses the backup file automatically.
Note
Backup/Restore to/from USB Flash Drive 
Firmware 1.7.2: Backups can only be restored within the 
same firmware revision level. If the firmware has been 
updated between backup and restoring, the database is 
no longer valid. 
As of firmware 1.8.0: It is also possible to restore backup 
files created with previous firmware versions.










