Hioki ST5540 - Measurement Networks; Network a (for Electrical Appliance and Material Safety Law)

10.14 Measurement Networks
269
8
9
Chapter 10 Specifications
10
Network A is a measurement network that complies with the Electrical Appliance
and Material Safety Law.
Network A complies with the following law :
(1) Ordinance Concerning Technical Requirements for Electrical Appliances and
Materials
Filter setting for single-frequency network (OFF) and multi-frequency network
(ON)
When network A is selected, the instrument can also be used in compliance with
the following standards on testing leakage current :
(2) Automatic vending machines - Test method - (JIS B8561-93)
(3) Microwaves (JIS C9250-92)
In addition to the Electrical Appliance and Material Safety Law, many JIS stan-
dards specify the use of a single-frequency network (with 1 k non-inductive
resistance only) for testing leakage current.
10.14Measurement Networks
Network A (for Electrical Appliance and Material Safety Law)
Ｖ
1 k ± 1%
Ｖ
1 k
±
1%
10 k± 1%
11.225 nF
± 2%
579

±
2%
Single-frequency network (OFF)
Multi-frequency network (ON)
Applicable law Ordinance Concerning Technical Requirements for
Electrical Appliances and Materials
Measurement
circuit configuration
Basic measurement element: 1 k
Frequency characteristic: ± 0.5% (DC to 1 MHz)
Low-pass filter
function
Filter configuration (ON setting): RC filter
(10 k + 11.22 nF + 579 )
Filter setting: ON/OFF (1 k only at OFF)
(with short-circuited input protective fuse)
Element tolerance Resistance : ± 1% (1 k, 10 k), ± 1%
± 2% (579 )
Capacitor : ± 2%