Siemens SIWAREX WL260 Series - Energy Limitation Parameters; Approval to OIML R60

9.2 Energy limitation parameters
Load cell type Type of protection
ia and ic tc
1)
nA
1)
WL230 BB-S SA
WL230 SB-S SA
WL230 SB-S CA
WL250 ST-S SA
WL260 SP-S SA
WL260 SP-S SB
WL260 SP-S SC
WL270 CP-S SA
WL270 CP-S SB
WL290 DB-S CA
U
i
= 20 V DC
I
i
= 420 mA
P
i
= 4.2 W
L
i
2)
= 40 µH
C
i
2)
= 12 nF
-20 °C ≤ T
a
≤ +40 °C
Load cell connected by a sin‐
gle associated apparatus:
U
i
= DC 16 V
I
i
= 420 mA
P
i
= 4.2 W
U
n
= 20 V DC
-20 °C ≤ T
a
≤ +40 °C
U
n
= 20 V DC
-20 °C ≤ T
a
≤ +40 °C
WL270 CP-S SC
WL270 K-S CA
- U
n
= 20 V DC
-20 °C ≤ T
a
≤ +40 °C
U
n
= 20 V DC
-20 °C ≤ T
a
≤ +40 °C
WL280 RN-S SA
1)
P
i
= 1.3 W
-30 °C ≤ T
a
≤ +40 °C
P
i
= 1.25 W
-30 °C ≤ T
a
≤ +50 °C
P
i
= 1.2 W
-30 °C ≤ T
a
≤ +60 °C
P
rated
= 0.25 W
U
n
= 15 V DC
-30 °C ≤ T
a
≤ +60 °C
U
n
= 15 V DC
-30 °C ≤ T
a
≤ +60 °C
U
i
= 19.1 V DC
i
i
= 200 mA
L
i
= 2.7 µH + 1.3 µH/m
Load cell cable
C
i
= 0.0001 nF + 0.057 nF/m
Load cell cable
1)
Take measures to ensure that the supply voltage (including transients) does not rise above 140% of the
rated voltage.
2)
With a load cell cable length of 200 feet / 60.96 m
See also
Basic safety instructions (Page 25)
Basic safety instructions (Page 21)
9.3 Approval to OIML R60
Most SIWAREX load cells are approved for use in scales requiring o󹪟cial calibration of Class III,
EN 45501.
This is determined by the speci󹪝cations of the respective type.
Technical data
9.3 Approval to OIML R60
SIWAREX WL200
70 Operating Instructions, 12/2021, A5E02199611B-13