Yokogawa Meters & Instruments Corporation
Switchboard Instruments .
Switchboard Instruments Line-up .
Key to Switchboard Numbering System .

DC Ammeters, DC Voltmeters. 2101A/2181A ….
AC Ammeters, AC Voltmeters 2102A/2182A .
Wattmeters 2105A/2185A
Varmeters 2106A/2186A .
Power Factor Meters 2107A/2187A .
Frequency Meters… 2108A/2188A .
Synchroscope.. 2109A..
110mm SQ
2101A30
2101A35,36,37
2102A30
2102A31
2105A31
2105A32
2105A35
2105A34
2105A36
2106A31
2106A33
2106A35
2106A34
2106A36
2107A31
2107A33
2107A35
2107A36
2108A30
2109A30

80mm SQ
2181A00
2181A35,36,37
2182A00
2182A01
2185A31(*1)
2185A32(*1)
2185A35(*1)
2185A34(*1)
2185A36(*1)
2186A31(*1)
2186A33(*1)
2186A35(*1)
2186A34(*1)
2186A36(*1)
2187A31
2187A33
2187A35(*1)
2187A36(*1)
2188A30