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Troubleshooting
Display Condition
"Check Sensor?"
"Too much error
CHECK SENSOR"
"Reset to Factory
Calibration"
Open Collector output is
activated when process is
within the setpoint
"SETUP READ ERROR
Press Any Key"
Ordering Information
Mfr. Part No.
Code
3-8450-1
159 000 041
3-8450-1P
159 000 042
3-8450-2
159 000 043
3-8450-2P
159 000 044
3-8450-3
159 000 045
3-8450-3P
159 000 046
Accessories
Mfr. Part No.
Code
3-8050
159 000 184
3-8052
159 000 188
3-8052-1
159 000 755
3-8050.395
159 000 186
3-8050.396
159 000 617
3-0000.596
159 000 641
3-5000.598
198 840 225
3-9000.392
159 000 368
3-9000.392-1
159 000 839
3-9000.392-2
159 000 841
George Fischer Signet, Inc. 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
3-8450.090-1 Rev. H 3/06 English
Possible Causes
• Sensor not wired properly.
• Sensor connected to 8450 while power
is on.
• Defective 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.)
Value in SET PRESSURE fi eld is -999.
Hysteresis value too large.
Memory fault occurred.
Description
Presure transmitter, Field mount
Presure transmitter, Panel mount
Presure transmitter, Field mount with relays
Presure transmitter, Panel mount with relays
Presure transmitter, Field mount with dual input/output
Presure transmitter, Panel mount with dual input/output
Description
Universal mounting kit
3/4 in. Integral mounting kit
3/4 in. NPT mount junction box
Splashproof rear cover
RC Filter kit (for relay use)
Heavy duty wall mount bracket
Surface Mount Bracket
Liquid tight connector kit for rear cover (includes 3 connectors)
Liquid tight connector kit, NPT (1 piece)
Liquid tight connector kit, PG13.5 (1 piece)
© George Fischer Signet, Inc. 2001
Suggested Solutions
• Correct sensor wiring.
• Recycle power with all sensors connected.
• Replace defective sensor.
• Confi rm calibration values.
• Remove sensor from installation, check
8450 reading (should be zero). If necessary,
Set Pressure to zero, reinstall sensor, then
recalibrate.
Entering "-999" in this fi eld will remove all user
calibration input and restore the factory values.
Reset hysteresis value in Calibrate menu.
• Press any key to reload factory presets.
• Reprogram all setpoints.
• If this message appears again, replace the 8450.
Printed in U.S.A. on recycled paper
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