product manual HM-2315 HM-2315_MAN_02.
Introduction: The Humboldt Mfg. Co. Volume Change Apparatus consists of a two chamber, reversible piston assembly mounted onto an enclosure which contains the flow control valves and internal fluid lines. The apparatus uses two different methods for measuring the volume change. The standard 100 cc Volume Change Apparatus is designed to utilize either a standard LSCT or a Humboldt Digital Gauge for measuring the volume change.
Volume Change Measurement & Bypass In order to measure the volume change, the left hand valve of the Volume Change Apparatus must be set to VOLUME CHANGE position and the right hand valve must be set to FLOW UP position or FLOW DOWN position. During a test, water fills one of the chambers, while the other chamber is opened and water drains out.
This procedure should be carried out at least three times or until an acceptable agreement between the measured volumes and the digital displays are achieved. Note: You should only attempt to calibrate in one direction. Where more than 100cc of volume change occurs, you will need to reverse the flow. You must therefore check the reverse displacement against the calibrated readings. If necessary you may need to use a correction factor to overcome any small hysteresis. Warranty Humboldt Mfg. Co.
