Bacharach Sling Psychrometer Operating Manual

SLING PSYCHROMETER

Configuration  Operation  Maintenance

Part Number: 0012-9015

November 2017, Rev. 7

For Use with Spirit Thermometers

P/N 0012-7012 (30° to 110° F, Red Spirit)
P/N 0012-7043 (–5° to 50° C, Blue Spirit)

Discontinued Mercury Thermometers

P/N 0012-7011 (30° to 110° F, Mercury)
P/N 0012-7013 (–5° to 50° C, Mercury)

CAUTION: Damage to thermometers or

plastic case will result if instrument is

exposed to direct sunlight or excessive

heat for prolonged periods.

WARRANTY

Bacharach, Inc. warrants to Buyer that at the time of delivery this Product will be free from defects in material
and manufacture and will conform substantially to Bacharach Inc.’s applicable specifications. Bacharach’s
liability and Buyer’s remedy under this warranty are limited to the repair or replacement, at Bacharach’s option,
of this Product or parts thereof returned to Seller at the factory of manufacture and shown to Bacharach Inc.’s
reasonable satisfaction to have been defective; provided that written notice of the defect shall have been given
by Buyer to Bacharach Inc. within one (1) year after the date of delivery of this Product by Bacharach, Inc. For
full details concerning this warranty, contact Bacharach Inc.

Product Leadership  Training  Service  Reliability

Sling Psychrometer

2 0012-9015 Rev 7

Overview

1. Remove cap (B)
then immerse
end of body to
saturate wick
(A).

A. Wick
B. End cap
C. Psychrometer body
D. Wet bulb thermometer
E. Tube
F. Dry bulb thermometer
G. Screws
H. Thermometer clips
I. Roll pin

2. Fill
psychrometer
reservoir with
water. Replace
cap (B).

3. Be sure wick

covers “wet”

bulb. The
other bulb is
dry.

4. Pull body (C)
from tube (E)
until body
hangs free.

5. Use tube
(E) as
handle;
whirl body
(C) about
1-½
minutes.

6. Read wet and dry bulb thermometers;
replace body in tube.

7. Set thermometer readings on upper
two calculator scales.

8. Read % relative humidity as indicated
by arrow.