Vocational Education Training in Environmental Health Sciences: Using Precision Rotameters, Module 6

摘要

In this instructional module, students learn to clean and calibrate a low-flow precision rotameter for use as a secondary calibration standard; as such, the rotameter can be used instead of the soapbubble meter to calibrate a personal sampling pump just before and after use. Training Prerequisites: Before beginning this module, students should have gained skills in calibration, operation, and use of portable sampling pumps. Objectives. Upon completion of this module, students will be able to perform the following functions: Name the parts of a low-flow precision rotameter and describe how each part functions, disassemble, clean, and reassemble a low-flow precision rotameter, and calibrate a precision rotameter, using a soapbubble meter.