Ace Glass 8728-13 Glass Body with Scale for McLeod Vacuum Gauge 5mm Hg

Glass Body with Scale for McLeod Vacuum Gauge.

Eliminates capillary depression error common to other designs. Easily cleaned. Accuracy ±3%. A tilting McLeod gauge which maintains a constant overflow head of mercury and maintains capillary depression of the meniscus. Readings do not "bounce." The measuring tube is a completely removable and interchangeable unit, permitting accurate determination of V1 values; the capillary stem is Trubore glass. Minute adjustment of zero line scale position is also possible for increased accuracy.

Scales are replaceable without recalibration. The measuring tube bulb is flattened on one side to increase drainage speed without causing hold-up; the lower stem is securely fastened with compressed FETFE O-Ring and threaded coupling. The mercury reservoir system has been redesigned for easier pumping and increased mercury storage, if desired, to prolong overflow time. Inlet trap allows mercury to be dumped out when changing is necessary. For mounting rod, see 8726-803.

Note: Requires approximately 20mL of mercury, which is NOT supplied.