Transmitter Output Indication

Blind transmitters (except level) should have at least one indicating gage on the transmitted signal. If a control valve is associated with several transmitted variables (directly or indirectly as with flow and level indicators on the same stream) the gages should be readable from the manual bypass valve. Gages for split range instruments should be readable from each valve. A gage is not required for level transmitters if the gage glass can be read from the control valve. The same applies to any indicating transmitter that can be read from the control valve.

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