Siemens Powers 832-177, Technical Bulletin, Page: 1 / 30

Siemens Industry, Inc.
Powers
™
Controls
Technical Bulletin
Document No. 155-253P25
TB 239
December 9, 2003
Calibration Kit for Room and Duct
Thermostats
Product Number
832-177
Caution Notation
CAUTION: Equipment damage or loss of data may occur if you do not
follow procedures as specified.
Description
This kit contains the equipment required to test pneumatic room and duct thermostats
and pneumatic devices such as valve or damper actuators or positioning relays.
Table 1 lists the items contained in the calibration kit.
Table 1. Calibration Kit Parts List.
Item Description Quantity Reference
1 Dial thermometer 1 Figure 1
2 Baumanometer 1 Figure 2
3 Dual scale pressure gauge 0 to 30 psi and 0 to 200 kPa 1 Figure 3
4 1/16-inch (1.6 mm) hex Allen wrench 1 Figure 4
5 1/4-inch (6.4 mm) OD plastic tubing, 2-3/4-inch (70 mm) long 2 Figure 5
6 1/4-inch (6.4 mm) OD plastic tubing plug 2 Figure 6
7 1/4-inch (6.4 mm) OD by 1/4-inch (6.4 mm) OD plastic by
1/8-inch (3.2 mm) NPT brass tee 1 Figure 7
8 3/16-inch (4.8 mm) ID rubber tubing, 12 inches (305 mm) long 2 Figure 8
9 Calibration Tool Kit (Part Number 832-178) 1 TB 240
Dial Thermometer
The dial thermometer is used to determine
the ambient temperature at the thermostat
sensing element.
Figure 1. Dial Thermometer.
Baumanometer
The baumanometer is a squeeze bulb with
a restrictor type shut-off valve. It is used if
a source of air pressure is not available or
if a gradual air pressure change is required
to operate a pneumatic device such as a
valve or damper actuator.
Figure 2. Baumanometer.
Item Number TB 239, Rev. 020