GF Signet 8450 Pressure Transmitter - Manual (Page 8)

Troubleshooting
Georg Fischer Signet LLC, 3401 Aero Jet 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. J 01/13 English © George Fischer Signet, Inc. 2013
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.).
• Confi 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.