Setra System Model 209 - Manual

Setra Systems Model 209
Pressure Transducer
1.0 GENERAL INFORMATION
Every Model 209 has been tested and calibrated before shipment.
Setra Systems 209 pressure transducers sense gauge pressure and convert this
pressure difference to a proportional high level analog output. Three standard
output and excitation versions are offered:
Excitation
Output
9 to 28 VDC 4 to 20 mA - (Must Observe Polarity)
9 to 30 VDC 0.5 to 5.5 VDC - (Reverse excitation protection)
4.9 to 8.1 VDC 0.5 to 4.5 VDC - (No reverse wire protection)
2.0 MECHANICAL INSTALLATION
2.1 Media Compatibility
Model 209 transducers are designed to be used with any gases or liquids
compatible with 17-4 PH Stainless Steel.
2.2 Environment
The operating temperature limits of the 209 are -40° to +185°F (-40 to +85°C).
The compensated temperature range is -4 to +176°F (-20 to +80°C).
2.3 Pressure Fittings
Typically, standard pipe fittings and procedures should be used. However, for
pressure ranges in excess of 500 psig, we suggest the use of a sealant such as
Loctite Hydraulic Sealant. Excessive torquing of metal fittings may cause a
slight zero shift. The use of plastic fittings typically results in no noticeable zero
shift. Torquing does not appreciably affect linearity or sensitivity.
2.4 Tube Stub Welding Instructions
Standard welding practices should be followed. Caution must be taken to
protect the sensor against current paths that could damage the circuit board.
Apply a heat sink between the weld zone and the sensor that is large enough
to protect the sensor from overheating. Failure to use a heat sink may damage
the housing seal or circuit board.
2.5 Venting
Because the reference pressure in a sealed gage transducer will vary due to
changes in temperature and will affect overall accuracy (especially in units of
less than 500 psig range), all 209 Series transducers are available as vented or
sealed to atmosphere.
Vented units are ordered as PSIG range units. Sealed units are ordered as PSIS
range units. The 209 PSIG transducers are vented through the cable.
Hirschmann PSIG transducers are vented through the connector. Packard
PSIG units are vented through a porous filter plug supplied on the unit.
3.0 ELECTRICAL INSTALLATION
The Model 209 is available in four electrical terminations:
2 foot Cable Hirschmann Connector
Packard Connector Conduit Adapter, 1/2 inch
Installation Guide