Resistance Boxes Models Br04 - Br05 - Br06 - Br07; Capacitance Decade Box Model Bc05 - AEMC BR04 Notice De Fonctionnement

1.5.1 Resistance Boxes
Models BR04 - BR05 - BR06 - BR07
• Resistance boxes: 4, 5, 6 or 7 decades covering a range from
1Ω to 11.11111MΩ
• 11-position switches
• Output on safety sockets Ø 4mm
• Accuracy: 1% ± 10mΩ on all ranges
Connect the ground (earth) terminal to a protective ground (earth)
before taking any measurements. Do not forget the resistance of the
measurement leads in the overall accuracy, particularly on the first
decade.
Types
1
BR04 +
BR05 +
BR06 +
BR07
+
1%
Accuracy
±10mΩ
Max
current 700mA
mA
DC

1.5.2 Capacitance Decade Box Model BC05

• Capacitance box with 5 decades; 11 position switches
• Total capacitance 11.111µF
• Very high insulation
• Output on safety sockets Ø 4mm
• The residual capacitance is approximately 25 pF
• Accuracy: 3% on all the ranges (residual capacitance deducted)
Type
BC05
Connect the ground (earth) terminal to a protective ground (earth)
before taking any measurements. Comply with the maximum oper-
ating voltage of 300V
maximum to ground (earth).
After each use, discharge the voltage stored by the capacitors into a
resistance with an appropriate value.
4
10 100
+
+
+
+
1% 1%
± 10mΩ ± 10mΩ
200mA 70mA
0.1 1
+ +
or 230V
DC
Decade Box Models BR04 / BR05 / BR06 / BR07 / BC05
Multiplying factor in Ω
1k
+ +
+ +
+ +
+ +
1%
± 10mΩ
20mA
Multiplying factor in nF
10
+
at 50Hz and the voltage of 150V
AC
10k 100k
+
+ +
+ +
1% 1%
±10mΩ ±10mΩ
7mA 1mA
100
+
1M
+
1%
±10mΩ
0.1mA
1k
+