Gauge Overview; Box Contents; Using The Instrument - Elcometer 116c User Manual

1 GAUGE OVERVIEW

The Elcometer 116C Sling
Hygrometer is a simple but effective
instrument for measuring the wet and
dry bulb temperatures of air.
From these two measurements, the
percentage relative humidity (%RH)
of the ambient air and the dewpoint
temperature are obtained.

2 BOX CONTENTS

Elcometer 116C Sling Hygrometer
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User Guide
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3 USING THE INSTRUMENT

1 Remove the end cap and immerse the
thermometer bulbs into water until the wick is
saturated.
2 Fill the reservoir with water. Replace the end cap,
tightening just enough to prevent water leakage.
3 Ensure the wick is wet and completely covers the
wet thermometer bulb.
4 Pull the body from the tube so that the body can
swivel freely.
5 Using the tube as a handle, whirl the body at 2 to 3
revolutions per second. Continue whirling until the
readings stabilise (approximately 1¾ minutes).
6 When the readings have stabilised, stop whirling
and immediately read the wet bulb temperature
and then the dry bulb temperature.
7 Slide the body back into the tube (aligning the
groove with the arrow) until the wet and dry
temperature readings are opposite each other on
the top two scales.
en-1
R
Wick
Reservoir
Wet
Bulb
Dry Bulb
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