Safetytest 1ST - Functional Description

SAFETYTEST 1ST User Manual SAFETY
TEST
SAFETYTEST GmbH June 15
th
2015 Page 9 of 22
4.9 Display (Figure 2/5)
The display has a resolution of 320x240 pixels and is backlit. The menus, help texts,
measurement functions, limits, measured values and quantities are displayed as text
messages. Several languages are possible.
5 Functional Description
5.1 Power Supply
The device is powered with mains (230V ±10%). The electronic measurements are supplied
by an internal fuse.
5.2 Internal memory
The measurements are performed according to a menu and the results stored in the internal
memory of the tester.
The inventory data and the measured values can be transferred to the PC. Inventory data
and the test profile may also be transferred from the PC to the tester.
5.3 Interface RS232/USB
The Barcodescanner can be connected using the RS232 interface.
NOTE!!!
All contacts of the extension lead must be connected 1:1.
USB: The tester is connected to the PC via a standard USB type B interface cable. The FTDI
is installed with the PC software.
The baud rate to the PC is 19200 baud.
The interface is galvanically isolated.
The firmware of the “SAFETYTEST 1ST” may be updated easily via the USB/COM interface.
An update allows you to get the latest testing sequences and change the display language,
The optional barcode scanner or the transponder scanner used for scanning ID numbers from
the UUTs may be connected to the RS232 interface. Both are pre configured to 19200 baud.
5.4 Display and Keyboard
The display and keyboard are supplied by their own circuitry.
6 Testing the Mains Connection
The person responsible for the electrical installation is responsible for the safety of the power
system to which the tester is connected.
The test of the installation is not part of the appliance test. However, it is important to know
before testing if the electrical installation is safe.
The tester does not perform a complete test as required by DIN VDE 0100.
Nevertheless a few important measurements are made giving an indication of the mains
connection, as for example:
• Testing of the protective earth potential using the fingercontact
• Mains PE against N voltage < 30V.
• Check if the N conductor is open circuit (the display does not light up).
• Display of the orange phase check glow lamp if mains is on (yellow light)
• Voltage measurement phase against N (range 1 to 260V AC)