Submersible installations
are limited to 85 °C (185 °F)
Application Limits
Pressure (bar)
Pressure (psi)
Temperature
*3-2350.090-1*
3-2350.090-1 Rev. K 03/13 English
English
Safety Instructions
1. Prior to installation or removal:
• Depressurize and vent system
• Drain below sensor level
2. Confi rm chemical compatibility before use.
3. Do not exceed maximum temperature/pressure specifi cations.
4. Wear safety goggles or faceshield during installation/service.
5. Do not alter product construction.
6. Dispose of properly; DO NOT INCINERATE!
Table of Contents
1. Description
2. Specifi cations
3. Installation
4. Digital (S
3
L) wiring
5. 4 to 20 mA wiring
6. 4 to 20 mA
span adjustment
7. Ordering information
1. Description
The Signet 2350 Temperature Sensor has a one-piece injection molded PVDF body that is ideal for use in high purity applications. It
also outlasts metal sensors in aggressive liquids and eliminates the need for costly custom thermowells. These sensors are available
with Digital (S3L) or fi eld-scaleable 4 to 20 mA output. Dual threaded ends (3/4 in. NPT) allow submersion in process vessels, or in-line
installation with conduit connection. Integral adapters (sold separately) may be used to create a compact assembly with fi eld mount
versions of the 8350 Temperature Transmitter.
• In-line installation: -10 °C to 100 °C (14 °F to 212 °F)
• Submersible installation: -10 °C to 85 °C (14 °F to 185 °F)
Response time, : 10 seconds
Process connection:
Rear connection:
Cable type: 3 cond + shield, 22 AWG
Standard cable length: 4.6 m (15 ft)
Shipping weight: 0.22 kg (0.5 lb)
3
/4 in. NPT male thread
3
/4 in. NPT male thread
Approvals & Standards
• CE
• RoHS Compliant
• Manufactured under ISO 9001 for Quality,
ISO 14001 for Environmental Management and
OHSAS 18001 for Occupational Health and Safety.
Declaration of Conformity according to FCC Part 15.
This device complies with Part 15 of the FCC rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and,
(2) This device must accept any interference received,
including interference that may cause undesired operation.
China RoHS (Go to www.gfsignet.com for details)
Dimensions
Electrical
Power requirements:
• (S
• 4 to 20 mA models: 12-24 VDC ±10%
Short circuit & reverse polarity protected
Digital (S
• Accuracy: ±0.5 °C (±0.9 °F)
• Repeatability: ±0.1 °C (±0.2 °F)
• Resolution: 0.01 °C (0.02 °F)
• Update rate: <100 ms
4 to 20 mA output:
• Accuracy: ±32 μA
• Repeatability: ±0.1 °C (±0.2 °F)
• Resolution: <5 μA
• Factory Span: 0 °C to 100 °C, fi eld-scaleable.
• Max loop impedance: 50 Ω @ 12 V
325 Ω @ 18 V
600 Ω @ 24 V
• Update rate: <100 ms
Environmental
• Relative humidity: 0 to 95% (Non-condensing)
• Storage temperature: -55 °C to 100 °C (-67 °F to 212 °F)
3
L) models: 5 VDC ±10%, <1.5 mA
3
L) output: Serial ASCII, TTL level 9600 bps
Page 2
3. Installation
*
3-8052
Integral mount kit
3-9900
3-8350
3-9900.396
Angle Adjustment Adapter Kit
*Customer supplied extension cable
must not exceed 305 m (1000 ft.)
The compact integral assembly can be installed using the
following directions:
3.1 2350-1 Integral Assembly Sensor Modifi cation
• Modify sensor part number 3-2350-1 per fi gure 1.
• Apply sealant or PTFE tape to the process connection threads
per fi gure 2, after inspecting threads to ensure integrity. Do not
install a sensor with damaged threads.
• Thread the sensor into the 3-8052 mounting kit.
• Tighten the sensor 1½ turns past fi nger tight into the process
connection.
• Make sure the fl ow alignment indicator is in correct position in
the pipe. Damage to the sensor tip can occur if the sensor tip is
installed improperly.
• Install 8350 transmitter
(refer to 8350 or 9900 manual for wiring information).
• The 3-8052 Integral kit includes:
• 3/4 in. NPT process connection
• 3-9000.392-1 liquid tight connector,
• Conduit base to attach 8350.
3.2 2350-3 In-line Remote Assembly
or 9900
1
/2 in. NPT
152 mm
Figure 1
(6 in.)
Align with
flow stream
Flow
Figure 2
The optional 3-8052-1 Integral Junction box with ¾ in. process
connection offers a convenient terminal point to extend the 2350
cable over distances greater than 4.6 m (15 ft).
• The kit includes:
• ¾ in. NPT process connection
• Conduit base and cap with junction terminals
• 3-9000.392-1 liquid tight connector, ½ in. NPT
To extend the wires longer than 4.6 m (15 ft):
• Modify sensor 3-2350-1 or 3-2350-3 as described in fi gure 1.
• Terminate the three wires to the terminal board located in the
cap assembly.
• Add customer-supplied wire to extend the cable.
• Terminate to the transmitter or the 4 to 20 mA input device.
• Apply sealant or PTFE tape to the process connection threads
per fi gure 3, after inspecting threads to ensure integrity.
DO NOT install a sensor with damaged threads.
• Tighten the sensor 1½ turns past fi nger tight into the process
connection.
3.3 2350-1 or 2350-3 Submersible Installation
• Use the 2350-1 or 2350-3 sensor with 4.6 m (15 ft) cable.
• Mount the sensor to an extension pipe or watertight conduit
using thread sealant.
• Use a cable gland at the top of the extension to prevent
moisture intrusion/accumulation inside the pipe.
• For additional defense against possible accumulation of
condensation at the back seal area of the sensor, fi ll the lower
75 mm to 100 mm (3 in. to 4 in.) of conduit or extension pipe
with a fl exible sealant such as silicone.
WHT WHT
4-20
BLU BLK
N/C RED
mA
SHIELD
FREQ/
DATA
SENSOR
INPUT
+
SHIELD
–
FREQ/
DATA
MXQFWLRQER[UHFRPPHQGHG
Fill with
3 to 4 in.
of sealant
3-8052-1
Integral junction box,
3/4 in. NPT
*
*Customer supplied extension cable
must not exceed 305 m (1000 ft.)
Figure 3
CAUTION!
The fl uid temperature must not exceed 85 °C (185 °F)
in submersible installations.
NOTE:
The 8050-1 or the 8052-1 junction boxes can be useful
accessories for this installation option.
2
2350 Temperature Sensor
Page 3
+
-
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
4. Digital (S3L) Wiring
• All models of the 2350 provide Digital (S3L) output when powered with 5 VDC.
• Connecting the SHIELD to a direct Earth ground may reduce electrical noise interference.
• The maximum Digital (S3L) cable length is dependent upon the instrument to which the sensor is connected. Consult the instrument
manual for details.
• Connect the 2350 cable directly to
Digital (S
3
L) I/O terminals.
3-8052
3-9900
3
L connector
S
3
S L (Red)
3
S L (Red)
Shield
White
Red
Black
3-8900.621C
1
2
3
4
5
6
7
8
9
10
11
+
-
12
13
+
-
14
White
Red
Black
Optional
Earth ground
SHLD
GND
DATA
V+
3-8900
I/O Module Connector
I/O Module 3-8900.401-X
+5VDC (Black)
Frequency
Input
Freq. Input (Red)
1
GND (Shield)
+5VDC (Black)
Frequency
Input 2
Freq. Input 2 (Red)
OR
S3L
Input
2
GND (White/Shield)
+5VDC (Black)
S3L
Input
1
GND (White/Shield)
Analog Output 1
(if applicable)
Analog Output 2
(if applicable)
3-8350
Temperature Transmitter
GND
7
IN
6
V+
5
White
Red
Black
White
Black
Red
Shield
WHT WHT
4-20
BLU BLK
N/C RED
mA
SHIELD
FREQ/
DATA
SENSOR
INPUT
+
SHIELD
–
FREQ/
DATA
3-8052-1
• When the 2350 includes a junction
box, connect the 2350 terminals to any
Digital (S3L) I/O port as shown.
5. 4 to 20 mA Loop Wiring
• The 2350-3 provides a 4 to 20 mA loop output when powered with 24 VDC.
• Connecting the SHIELD to a direct Earth ground may reduce electrical noise interference.
• Red wire is not used, do not remove the heat shrink. See Section 6, 4 to 20 mA Span Adjustment.
5.1 Current Loop With No Junction Box5.2 Current Loop With Junction Box
Black
+
-
White
+
-
• Connect the 2350 cable directly to a loop device as shown.
2350 Temperature Sensor
Power Supply
DC 12 - 24 V
Loop Input
Loop Input
• When the 2350 includes a junction box, connect the 2350
terminals to a loop device as shown.
INPUT
SENSOR
WHT WHT
4-20
BLU BLK
N/C RED
mA
SHIELD
FREQ/
DATA
SHIELD
+
–
FREQ/
DATA
3-8052-1
3
Page 4
6. 4 to 20 mA Span Adjustment
+
-
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
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.)
• 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 (S3L) Confi guration/Diagnostic Tool.
Wire Nut
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
7. Ordering Information
Mfr. Part No. Code Description
3-2350-1 159 000 021 Temperature sensor, (S
3-2350-3 159 000 920 Temperature sensor, 4 to 20 mA output,
/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) output, 3/4 in. NPT, 4.6 m (15 ft) cable
3
L) confi guration/diagnostic tool
3
/4 in. NPT, 4.6 m (15 ft) cable
WARNING!
Not protecting the
red wire may cause
the 4 to 20 mA span
to be reset.
* Custom cable length available, contact the factory.
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