Bender ISOMETER IRDH275, Manual

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75 IRDH275_D00122_03_M_XXEN/05.2017
9. Technical data IRDH275(B)
9.1 Data in tabular form
The values marked with * are absolute values
Insulation coordination acc. to IEC 60664-1
Rated voltage.....................................................................................................................................................AC 800 V
Rated impulse voltage/pollution degree............................................................................................................ 8 kV / 3
Voltage ranges
IRDH275....:
Nominal voltage range
U
n
.................................................................................................. 1AC / 3 (N) AC 0…793 V*
Nominal frequency
f
n
(for
f
< 50 Hz see characteristic curve on page 81) ............................................ 0.1…460 Hz
Nominal voltage range
U
n
...................................................................................................................... DC 0…650 V*
IRDH275….-435:
Supply voltage
U
s
(see nameplate).......................................................................................................AC 88…264 V*
Frequency range
U
s
................................................................................................................................... 42…460 Hz
Supply voltage
U
s
(see nameplate)...................................................................................................... DC 77…286 V*
IRDH….-427:
Supply voltage
U
s
(see nameplate)..................................................................................................... DC 19.2…72 V*
IRDH275….:
Power consumption .......................................................................................................................................... ≤ 14 VA
Response values
Response value
R
an1
(Alarm 1) ................................................................................................................1 kΩ…10 MΩ
Response value
R
an2
(Alarm 2) ................................................................................................................1 kΩ…10 MΩ
Relative uncertainty (20 kΩ…1 MΩ) (acc. to IEC 61557-8:2007-01) ............................................................. ±15 %
Relative uncertainty (1 kΩ…20 kΩ) .................................................................................................... +2 kΩ / +20 %
Relative uncertainty (1 MΩ…10 MΩ) .............................................................................................. 0.2 MΩ / +20 %
Response time
t
an
at
R
F
= 0.5 x
R
an
and
C
e
= 1 μF.............................................................................................. ≤ 5 s
Measuring time.......................................................................................................................... see characteristic curve
Hysteresis (1 kΩ…10 kΩ) ................................................................................................................................... +2 kΩ
Hysteresis (10 kΩ…10 MΩ)................................................................................................................................. 25 %