Inhaltsverzeichnis
Werbung
Messkreis
Messspannung U
............................................................. ±12 V
m
Messstrom I
(bei R
= 0 Ω) ......................................... ≤ 200 µA
m
F
Innenwiderstand DC R
................................................... ≥ 62 kΩ
i
Impedanz Z
bei 50 Hz .................................................... ≥ 60 kΩ
i
Zulässige Fremdgleichspannung U
Zulässige Netzableitkapazität C
Anzeigen, Speicher
Anzeige ..................... LC-Display, multifunktional, unbeleuchtet
Anzeigebereich Messwert ...................................... 1 kΩ...1 MΩ
Betriebsmessabweichung (1...5 kΩ) .......................... ± 0,5 kΩ
Betriebsmessabweichung (5 kΩ...1 MΩ) ....................... ±15 %
Passwort ................................................................. off/0...999
Fehlerspeicher (Alarmrelais) ............................................ on/off
Eingänge
Leitungslänge externe Test-/Reset-Taste ........................≤ 10 m
Ausgänge, analog, galvanisch getrennt
Spannungsausgang ................................................. DC 0...10 V
Leerlaufspannung (offene Klemmen) ........................ ≤ DC 20 V
Bürde .............................................................................. ≥ 1 kΩ
Stromausgänge, kurzschlussfest:
Kurzschlussstrom ......................................................... ≤ 30 mA
Stromausgang ........................... DC 0/4...20 mA (0...20 mA)*
Bürde ............................................................................ ≤ 500 Ω
Stromausgang .................................................... DC 0...400 µA
Bürde ......................................................................... ≤ 12,5 kΩ
Umwelt/EMV
EMV ............................................................................ IEC 61326
Arbeitstemperatur ........................................... -25 ºC...+55 ºC
Klimaklassen nach IEC 60721:
Ortsfester Einsatz (IEC 60721-3-3) (ohne Betauung und
Eisbildung) .......................................................................... 3K23
Transport (IEC 60721-3-2) (ohne Betauung und Eisbildung) .......
.............................................................................................2K11
Langzeitlagerung (IEC 60721-3-1) (ohne Betauung und
Eisbildung) .......................................................................... 1K22
Mechanische Beanspruchung nach IEC 60721:
Ortsfester Einsatz (IEC 60721-3-3) .................................... 3M11
Transport (IEC 60721-3-2) ................................................... 2M4
Langzeitlagerung (IEC 60721-3-1) .................................... 1M12
Anschluss ........................................................ Schraubklemmen
Anschlussvermögen:
starr/flexibel/Leitergrößen AWG .................................................
.........................................0,2...4/0,2...2,5 mm
Mehrleiteranschluss (2 Leiter gleichen Querschnitts):
starr/flexibel ...................................... 0,2...1,5/0,2...1,5 mm
Abisolierlänge .................................................................... 8 mm
Anzugsdrehmoment ............................................. 0,5...0,6 Nm
Anschluss .............................................................Federklemmen
......................... ≤ DC 300 V
fg
.................................... ≤ 20 µF
e
2
/AWG 24...12
Measuring circuit
Measuring voltage U
Measuring current I
m
Internal d.c. resistance R
Internal impedance Z
Admissible extraneous d.c. voltage U
Admissible system leakage capacitance C
Displays, memory
Display ................. LC display, multi-functional, non-illuminated
Display range, measuring value ............................. 1 kΩ...1 MΩ
Operating error (1...5 kΩ) ........................................... ± 0.5 kΩ
Percentage operating error (5 kΩ...1 MΩ) ..................... ±15 %
Password ................................................................. off/0...999
Fault memory (alarm relay) ............................................. on/off
Inputs
Cable length external test/reset button ..........................≤ 10 m
Outputs, analogue, galvanic separated
Voltage output ........................................................ DC 0...10 V
Open-circuit voltage (open terminals) ....................... ≤ DC 20 V
Load ................................................................................ ≥ 1 kΩ
Current outputs, short-circuit proof:
Short-circuit current ..................................................... ≤ 30 mA
Current output .......................... DC 0/4...20 mA (0...20 mA)*
Load .............................................................................. ≤ 500 Ω
Current output ................................................... DC 0...400 µA
Load ........................................................................... ≤ 12.5 kΩ
Environment/EMC
EMC ............................................................................. IEC 61326
Operating temperature .................................... -25 ºC...+55 ºC
Climatic categories acc. to IEC 60721:
Stationary use (IEC 60721-3-3) (except condensation and forma-
tion of ice) ........................................................................... 3K23
Transport (IEC 60721-3-2) (except condensation and formation
of ice) ...................................................................................2K11
Long-term storage (IEC 60721-3-1) (except condensation and
formation of ice) ................................................................. 1K22
Classification of mechanical conditions acc. to IEC 60721:
Stationary use (IEC 60721-3-3) ......................................... 3M11
Transport (IEC 60721-3-2) ................................................... 2M4
Long-term storage (IEC 60721-3-1) .................................. 1M12
Connection ......................................................... screw terminals
Connection properties:
rigid/flexible/conductor sizes AWG ..............................................
.........................................0.2...4/0.2...2.5 mm
Two conductors with the same cross section:
rigid/flexible ...................................... 0.2...1.5/0.2...1.5 mm
2
Stripping length ................................................................. 8 mm
Tightening torque, terminal screws ...................... 0.5...0.6 Nm
Connection ...................................................push-wire terminals
IR425-D4M(1C)_D00031_05_M _DEEN/ 04.2021
ISOMETER® IR425-D4M(1C)
....................................................... ±12 V
m
(at R
= 0 Ω) ............................... ≤ 200 µA
F
............................................... ≥ 62 kΩ
i
(50 Hz) ........................................ ≥ 60 kΩ
i
..................... ≤ DC 300 V
fg
..................... ≤ 20 µF
e
2
/AWG 24...12
2
13
Werbung
Inhaltsverzeichnis
