Kobold DRF34 Series Installation & Operation Instructions

Precautions

• Please read the entire manual prior installing this
product. These instructions include information on
the DRF34 and DRG26 pressure gauge with
switches. Refer to the part number label on the instru-
ment housing to verify the exact model number.
• User's responsibility: These instruments are
designed for use in a wide variety of applications. It is
however, the user's responsibility to ensure the suit-
ability of the device with respect to a specific applica-
tion. Additionally, it is the user's responsibility to
ensure the unit is properly installed and tested prior to
operation.
• Proper Installation and Sealing: Always use a
proper thread sealant with all installations. Be sure
not to overtighten fittings. Test for leaks prior to oper-
ating the instrument.

Electrical Connections:

All electrical connections are made via a weather proof 90°
angle connector plug on the side of the indicator housing. Con-
nections are made via numbered screw terminals inside the con-
nector. It is recommended that a multi-conductor jacketed cable
be used. The outside diameter of the jacket should be large
enough to ensure that the weather-tight cable gland on the plug
can be tightened down snugly.
Table 1 (back of page) lists the part number suffixes, the switch-
ing functions and the connection terminal numbers to be used for
the various switch configurations. Check your part number with
our catalog specifications to verify the type of switches you have.

Switch Adjustment:

For units which have switches, adjust the switch setpoint as follows:
• Remove the adjusting tool from the rear of the angled electrical connector.
• The switch point indicators are the ones with the red tips. Adjustment is made by inserting the adjusting tool into the
socket at the center of the dial face and pushing down on the spring loaded adjusting arm. By then rotating the adjusting
tool, the arm will contact the switchpoint indicators and allow them to be moved to the desired switchpoint.
• When setpoint adjustment is complete, re-install the adjusting tool into the back of the angled connector.
Series DRF34/DRG26 Pressure Gauge
Installation/Operation Instructions
KOBOLD Instruments Inc. 1801 Parkway View Drive Pittsburgh, PA 15205
Phone (412) 788-2830 • Fax (412) 788-4890 www.koboldusa.com
• Wiring and Electrical: For units with switches,
check the current and voltage requirements for
the load to be controlled. Ensure that they do not
exceed the maximum specified switch ratings.
• Temperature and Pressure: Under no circum-
stances should the maximum ratings of operating
temperature and pressure be exceeded. Doing so
can result in equipment damage and personnel
injury.
• Material Compatibility: Ensure that the media
contacted parts are made of a material which is
chemically compatible with the process media.
Ensure that the housing material is compatible
with the ambient environment. Failure to do so
can result in equipment damage caused by chem-
ical attack.
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3
Terminal Housing
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Manual-DRF34-DRG26_8-01
FM Rev. 8/3/01