USGS
Wire Weight Gage - Model 8500
A wire weight gage is a device that can be bolted
to a bridge or railing or other appurtenance over a
body of water to obtain water surface gage heights.
It is manually read by opening the protective cover
and cranking down a weight until the weight touches
the water. A counter is provided to automatically
give the output of the cable and determine the water
height in increments of 0.01 feet.
A horizontal checking bar is mounted at the lower
edge of the instrument so that when it is moved to
the forward position the bottom of the weight will
rest on it. The gage is set so that when the bottom
of the weight is at the water surface, the gage
height is indicated by the combined readings of the
counter and the graduated disc. The wire-weight gage
is used as an outside reference gage.
The size of the wire weight gage is approximately
15 inches wide by 13 1/2 inches high by 9 1/2 inches
deep (38 cm by 34 cm by 24 cm). The protective cover
can be locked in place. The new HIF design features
an integral latch protector cast with the cover and
stronger backplate for added vandalism protection.
The rear (mounting) cover of the wire weight gage
assembly can be individually drilled to meet
mounting requirements at each particular location.
The maximum length of the cable is 90 feet (27.4
meters). The gage is sold complete with weight and
cable.
801-100 Wire Weight
Gage 40 lbs.
Double Drum Wire Weight Gage-Model 8550
A Double Drum Wire Weight Gage is available which
will hold 180 feet (55 meters) of cable for gaging
from a high bridge or large reservoir. It is the
same basic design except the drum length is twice
the standard wire weight gage.
801-120 Double Drum
52 lbs.
Wire Weight Gage
Brake
This is a hand operated brake which threads onto
the sheave shaft and the brake pad rides on the
flange of the drum. As the wire weight gage weight
free falls toward the water surface the brake is an
easy way to control the descent eliminating slow
hand cranking down to the water.
801-125 Wire Weight
Gage Brake 0.4 lb.
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