Troubleshooting
Georg Fischer Signet LLC, 3401 Aerojet Avenue, El Monte, CA 91731-2882 U.S.A. • Tel. (626) 571-2770 • Fax (626) 573-2057
For Worldwide Sales and Service, visit our website: www.gfsignet.com • Or call (in the U.S.): (800) 854-4090
For the most up-to-date information, please refer to our website at www.gfsignet.com
3-8450.090-3 Rev. H 11/11 English
© George Fischer Signet, Inc. 2011
Ordering Information
Mfr. Part No.
Code
Description
3-8450-1
159 000 041
Pressure transmitter, Field mount
3-8450-1P
159 000 042
Pressure transmitter, Panel mount
3-8450-2
159 000 043
Pressure transmitter, Field mount with relays
3-8450-2P
159 000 044
Pressure transmitter, Panel mount with relays
3-8450-3
159 000 045
Pressure transmitter, Field mount with dual input/output
3-8450-3P
159 000 046
Pressure transmitter, Panel mount with dual input/output
Accessories
Mfr. Part No.
Code
Description
3-8050
159 000 184
Universal mounting kit
3-8052
159 000 188
3/4 in. Integral mounting kit
3-8052-1
159 000 755
3/4 in. NPT mount junction box
3-8050.395
159 000 186
Splashproof rear cover
3-8050.396
159 000 617
RC Filter kit (for relay use)
3-0000.596
159 000 641
Heavy duty wall mount bracket
3-5000.598
198 840 225
Surface Mount Bracket
3-9000.392
159 000 368
Liquid tight connector kit for rear cover (includes 3 connectors)
3-9000.392-1
159 000 839
Liquid tight connector kit, NPT (1 piece)
3-9000.392-2
159 000 841
Liquid tight connector kit, PG13.5 (1 piece)
Display Condition
Possible Causes
Suggested Solutions
Check Sensor?
• Sensor not wired properly.
• Sensor connected to 8450 while
power is on.
• Defective
sensor.
• Correct sensor wiring.
• Recycle power with all sensors connected.
• Replace defective sensor.
Too much error
CHECK SENSOR
The value entered in Set Pressure
fi
eld is
greater than 5 psi deviation from sensor
input. (The 8450 allows a maximum of
5 psi calibration offset.).
• Con
fi
rm calibration values.
• Remove sensor from installation, check
8450 reading (should be zero). If necessary,
Set Pressure to zero, reinstall sensor, then
recalibrate.
Reset to Factory
Calibration
Value in SET PRESSURE
fi
eld is -999.
Entering "-999" in this
fi
eld will remove all user
calibration input and restore the factory values.
Relay is always
activated
• Hysteresis value too large
• Defective
transmitter
• Change the hysteresis value
• Replace
transmitter
SETUP READ ERROR
Press Any Key
Memory fault occurred.
• Press any key to reload factory presets.
• Reprogram all setpoints.
• If this message appears again, replace the
8450.
