Bender A-ISOMETER IR1570 Series Operating Manual page 34

Measuring circuit
Measuring voltage U
....................................................................................................................
m
Measuring current I (at R
m
Internal DC resistance R
.............................................................................................................
i
Internal impedance Z
at 50 Hz ...................................................................................................
i
Permissible extraneous DC voltage U
Permissible system leakage capacitance IR1570 C
Permissible system leakage capacitance IR1575 C
Displays
Display, illuminated.......................................................................................................... two-line display
Characters (number of) ..................................................................................................................... 2 x 16
Display range, measuring value.............................................................................................. 1 kΩ...5 MΩ
Absolute error (1 kΩ...10 kΩ) .......................................................................................................... ±1 kΩ
Relative percentage error (10 kΩ...5 MΩ)...................................................................................... ±10 %
Outputs/inputs
TEST/ RESET button......................................................................................................... internal/external
Max. cable length TEST/RESET button external ................................................................................ 10 m
Switching components
Switching components ......................................................................................... 2 changeover contacts
Operating principle.................................................................................................. N/O or N/C operation
Factory setting (Alarm1/Alarm2) ....................................................................................... N/O operation
Electrical endurance ..................................................................................... 12 000 switching operations
Contact class ...................................................................................... IIB acc. to DIN IEC 60255 part 0...20
Rated contact voltage................................................................................................ AC 250 V / DC 300 V
Making capacity............................................................................................................................... UC 5 A
Breaking capacity............................................................................................ 2 A, AC 230 V, cos ϕ = 0.4
.................................................................................................................... 0.2 A, DC 220 V, L/R = 0.04 s
Minimum contact current at DC 24 V ............................................................................... 2 mA (50 mW)
General data
EMC immunity..................................................................................................................acc. to EN 61326
EMC emission .................................................................................................................. acc. to EN 61326
Shock resistance IEC 60068-2-27 (device in operation)...................................................... 15 g / 11 ms
Bumping IEC 60068-2-29 (during transport) ........................................................................ 40 g / 6 ms
Vibration resistance IEC 60068-2-6 (device in operation)............................................. 1 g / 10...150 Hz
Vibration resistance IEC 60068-2-6 (during transport) ................................................. 2 g / 10...150 Hz
Ambient temperature (during operation)....................................................................... -10 °C...+55 °C
Storage temperature range.............................................................................................. -40 °C...+70 °C
34
= 0 Ω)............................................................................................
F
...................................................................................
fg
....................................................................
e
.....................................................................
e
Technical Data IR1570/1575
≤
20 V
≤
170 μA
≥
119 kΩ
≥
114 kΩ
≤
DC 680 V
≤
20 μF
≤
60 μF
TGH1370en/12.2019