Operation Manual

08/ 2012 48 / 58
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BENNING ST 750 A
type CF: applied part isolated from earth and appropriate for direct application to the heart or
typeCF:appliedpartprotectedbyadebrillator
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Attention: Make sure which type of applied part is concerned! Non-observance might
cause a short-circuit, e.g. in case of an uninsulated applied part!
20. Technical Data, Appliance Tester
Mains connection: 230 V ± 10 %, 50 to 60 Hz
Current consumption of appliance tester
- without test socket: 0.3 A
- with test socket: 16 A
Maximum current load of the test socket: 16 A, load type, see table on page 52
Maximum pre-fuse: 16 A
Protection category: II (for the test socket, the protective conductor is
looped through)
Protection category: IP 40 with the cover being open
IP 67 with the cover being closed
Overvoltage category: II
Contamination level: 2
Touchscreen display: 115 x 95 mm
Ambient conditions: height up to 2000 m above sea level
- temperature range: 0 to 35 °C (operating temperature)
-20 to 60 °C (storage temperature)
- maximum relative humidity: 80 % up to 30 °C linearly decreasing
60 % up to 40 °C, non-condensing
Temperature range for tolerances: 18 to 28 °C
EMC 0404-1/ 4.12,
EN61326-2-2
Housing: carrying case, surface-mounted, shock-resistant
Device regulations: see introduction and table
Dimensions (max.): height x width x depth
(without three-phase sockets) 170 x 410 x 350 mm
Weight: approx. 6 kg
Note:Themeasuringaccuracyisspeciedasthesumof:
- a relative part of the measured value and
- a number of digits (i.e. counting steps of the last digit). This measuring accuracy applies to
temperatures from 18 °C to 28 °C and a relative air humidity lower than 80 %.
20.1 Technical Data, Measuring and Device Function
DIN VDE 0404-2/ 4.1.1: The tester must allow at least measurement of the following parameters:
- protective conductor resistance
- insulating resistance
- protective conductor current (direct measurement, differential current measurement or
alternative leakage current measurement method)
- contact current (direct measurement, differential current measurement or alternative leakage
current measurement method)
The application standards DIN VDE 0701-0702 and 0751-1 use different terms for the same
measurement methods depending on the properties and intended use of the parts. Thus, the follow-
ing terms are used for leakage currents: device leakage current, earth leakage current, protective
conductor current, contact current, patient leakage current etc.
The measuring data logging works with three measuring ranges (1:1; 10:1; 100:1). Switch-over of
the measuring range occurs automatically, so that measurement is always carried out in the most
favourable measuring range.
The RS232 interface (COM port) for barcode scanner, RFID reader, PC and printer can be set as
follows:
Baud rate: 1200; 2400; 4800; 9600; 14400; 19200; 38400; 57600; 115200
Parity: none, even, odd
Data bits: 7; 8
Stop bits: none, one, two
*printed in bold type = factory setting
Max. connectable storage capacity: SD card 2 GB,
USB stick 8 GB
For data input, it is also possible to connect an external PC keyboard to the USB interface.
Factory setting, system data:
Test time: 5 seconds
Time, safety shutdown: 30 seconds
Transition resistance, connector:  1Ω