Description:
Tapes are the same as image tapes except the zero point on the outage tape is located at the swivel hook.
Use:
Designed for outage measurement applications.
Graduations:
Marked in feet, inches, and 1/8-inch increments.
Measurement Procedure:
Lower the tape into the tank until the plumb bob just penetrates the liquid, then read the tape at the reference point. Rewind the tape and read the liquid level directly from the plumb bob. Offset the plumb bob reading with the tape reading to obtain the total outage measurement.