IM 12D08B02-01E
Appendix 3-13
13-4. SC202G, SC202S 2-Wire Conductivity Transmitter (Profibus Communication)
Quality
Inspection
Standards
SC202G, SC202S
2-Wire Conductivity Transmitter
(Profibus Communication)
QIS 12D08B02-71E
1st Edition: Sep. 2007
1. Scope
This inspection standard applies to the SC202G and SC202S 2-Wire Conductivity Transmitters
(Profibus specification).
2. Inspection
Items
2.1 Insulation resistance test
* 2.2 Dielectric strength test
2.3 Temperature indication check
2.4 Conductivity indication check
* 2.5 Profibus communication functional check
Note: Items marked with an asterisk (*) may only be confirmed by a test certificate.
3.
Inspection Methods, Standards and Conditions
z
Connect the testing circuit as shown in Figure 1. Allow the instrument to warm up for at least
5 minutes before conducting the tests. For the connections for the insulation resistance test,
follow the instructions in Section 3.1 and for the connections for the dielectric strength test,
follow the instructions in Section 3.2.
z
Use test equipment shown in Figure 1, or equivalent, for the tests.
3.1 Insulation Resistance Test
(1) Apply 500 V DC between the power supply terminals shorted together (+ and –) and the
earth terminal (G). The insulation resistance must be 100 M
Ω
or greater.
(2) Apply 500 V DC between the input terminals shorted together (11 to 16) and the earth
terminal (G). The insulation resistance must be 100 M
Ω
or greater.
3.2 Dielectric Strength Test (Required Only for SC202S)
Apply 600 V AC, an AC voltage of substantially sinusoidal waveform with a frequency of 50 Hz
or 60 Hz, between the terminals shown below, for at least 2 seconds. The insulation must
withstand this voltage. (The sensed current should be 10 mA.)
(1) Between the power supply terminals shorted together (+ and –) and the earth terminal (G)
(2) Between the input terminals shorted together (11 to 16) and the earth terminal (G)
(3) Between the input terminals shorted together (11 to 16) and the power supply terminals
shorted together (+ and –)
3.3 Temperature
Indication
Check
Connect the instruments as shown in Figure 1, and set them as follows.
Decade resistance box 1:
960.9
:
Decade resistance box 2:
10
Ω
Summary of Contents for SC202G
Page 8: ...IM 12D08B02 01E LT LV PL EST SLO H BG RO M CZ SK...
Page 13: ...IM 12D08B02 01E 1 4 Introduction...
Page 33: ...IM 12D08B02 01E 2 20 Specifications...
Page 74: ...IM 12D08B02 01E Spare Parts 10 1 10 SPARE PARTS See Customer Maintenance Parts List...
Page 92: ...IM 12D08B02 01E 3 4 Appendix...
Page 96: ...IM 12D08B02 01E 3 8 Appendix...
Page 99: ...IM 12D08B02 01E Appendix 3 11 3 3 QIS 12D08B02 61E Figure 1 Testing Circuit and Test Equipment...
Page 100: ...IM 12D08B02 01E 3 12 Appendix...
Page 104: ...IM 12D08B02 01E 3 16 Appendix...
