Yokogawa Data Acquisition with PID Control CX2000 - Manual (Page 12)

2-3
SM 04L31A01-01E
Testing
2
2.2 Test Procedures
Insulation Resistance Test
Perform this test using a DC 500 V insulation resistance meter and confirm that the
results meet the criteria below.
Terminals Reference Values Notes
Power terminal to earth terminal 100 M Ω or higher Short all channels prior to test
Measurement input terminal to
earth terminal
Control input terminal to earth
terminal
RS-422-A/485 SG terminal to 100 M Ω or higher Test only if the basic
RS-422-A/485 FG terminal specification code for the
communications port is -2.
Ethernet input/output terminal 100 M Ω or higher Short all terminals prior to test
to earth terminal
Withstand Voltage Test
Perform the test using a withstanding voltage tester and confirm that the results meet the
criteria below, and that the instrument does not malfunction.
Terminal Reference Values
AC power terminal to earth terminal* Leakage current of 10 mA or less at 1.5 kV AC for 1 minute
DC power terminal to earth terminal (/P1)* Leakage current of 10 mA or less at 0.5 kV AC for 1 minute
Measurement input terminal to earth terminal † Leakage current of 2 mA or less at 1.5 kV AC for 1 minute
Control input terminal to earth terminal † Leakage current of 2 mA or less at 1.5 kV AC for 1 minute
Between measuring input terminals ‡ Leakage current of 1 mA or less at 1 kV AC for 1 minute
Between control input terminals ‡ Leakage current of 1 mA or less at 1 kV AC for 1 minute
Current and voltage pulse to earth terminal § Leakage current of 2 mA or less at 1 kV AC for 1 minute
Control relay terminal to earth terminal Leakage current of 2 mA or less at 1.5 kV AC for 1 minute
(2, 4, and 6 loop models) ||
DO relay terminal to earth terminal Leakage current of 2 mA or less at 1.5 kV AC for 1 minute
(2, 4, and 6 loop models) #
DO(Tr) terminal to earth terminal Leakage current of 2 mA or less at 0.5 kV AC for 1 minute
(2, 4, and 6 loop models or /CST1)**
D1 terminal to earth terminal Leakage current of 2 mA or less at 0.5 kV AC for 1 minute
(2, 4, and 6 loop models or /CST1) ††
Alarm relay terminal to earth terminal Leakage current of 2 mA or less at 1.5 kV AC for 1 minute
(/A6, /A6R, /A4F, /A4FR) ‡‡
Remote terminal to earth terminal (/A6R, /A4FR) §§ Leakage current of 2 mA or less at 0.5 kV AC for 1 minute
24 V transmitter power supply output to earth terminal Leakage current of 10 mA or less at 0.5 kV AC for 1 minute
(/TPS4)
||||
* Short L and N (or +/– with the /P1 option)
† Short all channels
‡ Short the + and – input terminals (except for the RTD b terminal)
Short the even and odd channels (for example, short channels 1-3-5 and 2-4-6 on the CX1000 or channels 1-3-
5-7-9 and channels 2-4-6-8-10 for the CX2000), and test the withstanding voltage between them.
§ Short mA, PULS, and C.
|| Short NO, NC, and C on CTRL OUT.
# Short 1NO, 1C, and 2NO on DO.
** Short DO3—DO6 and C.
†† Short all DI terminals.
‡‡ Short all alarm relay terminals.
§§ Short all remote terminals.
|||| Short all transmitter power supply output terminals (+/–).