40 79 43
Deadweight Testers
40 79 39
Signal Conditioners and Converters
40 79 36
Voltage-to-Pressure Converters
40 79 33
Current-to-Pressure Converters
40 79 26
Instrument Programming Equipment
40 79 23
Instrument Calibration Equipment
40 79 13
Nuclear Mass-Measuring Scales
40 79 00
Miscellaneous Instruments, Calibration Equipment, Instrument Valves, and Fittings
40 78 63
Alarm Dialers
40 78 59
Power Supplies
40 78 56
Isolators, Intrinsically-Safe Barriers, and Surge Suppressors
40 78 53
Relays
40 78 43
Single-Loop Controllers
40 78 33
Annunciators
40 78 26
Chart Recorders
40 78 23
Potentiometers and Manual Controllers
40 78 19
Switches and Push Buttons
40 78 16
Indicating Lights
40 78 13
Indicators and Meters
40 78 00
Panel Mounted Instruments