GF Signet 2350 Temperature Sensor - Manual (Page 4)

7. Ordering Information
Mfr. Part No. Code Description
3-2350-1 159 000 021 Temperature sensor, (S 3 L) output, 3 /
4
in. NPT, 4.6 m (15 ft) cable
3-2350-3 159 000 920 Temperature sensor, 4 to 20 mA output, 3 /
4
in. NPT, 4.6 m (15 ft) cable
Accessories
Mfr. Part No.
Code Description
3-8050-1 159 000 753 Universal mount junction box
3-8052 159 000 188 3 /
4
in. Integral mounting kit
3-8052-1 159 000 755 3 /
4
in. NPT mount junction box
3-9000.392-1 159 000 839 Liquid tight connector kit, NPT (1 piece)
3-9000.392-2 159 000 841 Liquid tight connector kit, PG13.5 (1 piece)
3-9900.396 159 001 701 Angle Adjustment Adapter Kit
5523-0322 159 000 761 Cable, 3 conductor + shield, 22 AWG, black/red/white/shield
3-0250 159 001 538 USB to digital (S 3 L) confi guration/diagnostic tool
* Custom cable length available, contact the factory.
6. 4 to 20 mA Span Adjustment
The 4 to 20 mA endpoint values are independent of one another
and may be adjusted in the fi eld. For example, to reduce the 20 mA
endpoint value from the factory setting of 100 °C, but to allow the 4 mA
endpoint to remain at 0 °C, perform only the steps listed in 6.2 below.
NOTE:
The RED wire, which is not connected during normal
4 to 20 mA operation, assumes an important role in the
following procedures.
6.1 To adjust the 4 mA endpoint in the fi eld:
• Carefully remove the heat shrink tube protecting the red wire.
• Expose the sensor to the temperature desired to correspond with 4 mA
-10 °C to 100 °C (submersible: -10 °C to 85 °C).
(Be sure to allow suffi cient time for the sensor to reach equilibrium.)
+
-
3-8052
3-8050.521
Loop Input +
4 to 20 mA
loop monitor
Power Supply
DC 12 - 24 V
Black (Loop +)
Optional
Earth Ground
Loop Input -
Shield
White (Loop - )
Red
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
3-2350.090-1 Rev. K 03/13 English © Georg Fischer Signet LLC 2013
WARNING!
Not protecting the
red wire may cause
the 4 to 20 mA span
to be reset.
Wire Nut
• With power applied as described in Section 5, connect the RED wire to the WHITE wire for 15 seconds.
(After about 10 seconds the output will drop to 3.6 mA and remain there until the RED wire is disconnected.)
• Disconnect the RED wire from the WHITE wire; the 4 mA endpoint has been adjusted.
• NOTE:
The output will act as a switch if the 4 and 20 mA endpoints are set very near to the same value.
6.2 To adjust the 20 mA endpoint in the fi eld:
• Expose the sensor to the temperature desired to correspond with 20 mA -10 °C to 100 °C (submersible: -10 °C to 85 °C).
(Be sure to allow suffi cient time for the sensor to reach equilibrium to this temperature.)
• With power applied as described in Section 5, connect the RED wire to the BLACK wire for 15 seconds.
(After about 10 seconds the output will rise to 22 mA and remain there until the RED wire is disconnected.)
• Disconnect the RED wire from the BLACK wire; the 20 mA endpoint has been adjusted.
NOTE
: The output will act as a switch if the 4 and 20 mA endpoints are set very near to the same value.
• Minimum span is ±2% of maximum range.
• After adjusting the 4 to 20 mA span, protect the red wire by installing the provided wire nut.
• For easier re-spanning use the Signet 0250 USB to Digital (S
3 L) Confi guration/Diagnostic Tool.
6.3 To restore the factory setting:
• Disconnect power to the sensor. Wait 10 seconds for circuit to discharge.
• Connect the RED wire to the WHITE wire.
• Apply power as described in Section 5, but with the RED wire connected to the WHITE wire for 15 seconds.
(After about 10 seconds the output will drop to 3.6 mA and remain there until the RED wire is disconnected.)
• Disconnect the RED wire from the WHITE wire; factory settings have been restored.
Mfr. Part No. Factory Span
3-2350-3 4 to 20 mA = 0 °C to 100 °C