Signet 2350 User manual

Safety Instructions
1. Prior to installation or removal:
• Depressurize and vent system
• Drain below sensor level
2. Confirm chemical compatibility before use.
3. Do not exceed maximum temperature/pressure specifications.
4. Wear safety goggles or faceshield during installation/service.
5. Do not alter product construction.
6. Dispose of properly; DO NOT INCINERATE!
Signet 2350 Temperature Sensor
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 field-scaleable 4 to 20 mA output. Dual threaded ends (3/4in. 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 field mount
versions of the 8350 Temperature Transmitter.
2. Specifications
Dimensions
General
Compatibility: Signet 8350 Temperature Transmitters
Signet 8900 Multi-Parameter Controller
Signet 9900 Transmitter
Wetted material: PVDF
Measurement range:
• 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: 3/4in. NPT male thread
Rear connection: 3/4in. NPT male thread
Cable type: 3 cond + shield, 22 AWG
Standard cable length: 4.6 m (15 ft)
Shipping weight: 0.22 kg (0.5 lb)
Electrical
Power requirements:
• (S3L) models: 5 VDC ±10%, <1.5 mA
• 4 to 20 mA models: 12-24 VDC ±10%
Short circuit & reverse polarity protected
Digital (S3L) output: Serial ASCII, TTL level 9600 bps
• 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, field-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)
Table of Contents
1. Description
2. Specifications
3. Installation
4. Digital (S3L) wiring
5. 4 to 20 mA wiring
6. 4 to 20 mA
span adjustment
7. Ordering information
109 mm
(4.27 in.)
82 mm
(3.22 in.) ¾ in. NPT
30 mm
(1.18 in.)
Submersible installations
are limited to 85 °C (185 °F)
Application Limits
Pressure (bar)
Pressure (psi)
Temperature
3-2350.090-1 Rev. K 03/13 English
*3-2350.090-1*
English
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)

2 2350 Temperature Sensor
3. Installation
The compact integral assembly can be installed using the
following directions:
3.2 2350-3 In-line Remote Assembly
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 figure 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 figure 3, after inspecting threads to ensure integrity.
DO NOT install a sensor with damaged threads.
• Tighten the sensor 1½ turns past finger tight into the process
connection.
3.1 2350-1 Integral Assembly Sensor Modification
• Modify sensor part number 3-2350-1 per figure 1.
• Apply sealant or PTFE tape to the process connection threads
per figure 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 finger tight into the process
connection.
• Make sure the flow 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 or 9900
(refer to 8350 or 9900 manual for wiring information).
• The 3-8052 Integral kit includes:
• 3/4in. NPT process connection
• 3-9000.392-1 liquid tight connector, 1/2in. NPT
• Conduit base to attach 8350.
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, fill the lower
75 mm to 100 mm (3 in. to 4 in.) of conduit or extension pipe
with a flexible sealant such as silicone.
4-20
mA FREQ/
DATA
WHT WHT
BLU BLK
N/C RED
SHIELD
SENSOR
INPUT
*
SHIELD
–
+FREQ/
DATA
3-8052-1
Integral junction box,
3/4 in. NPT
*Customer supplied extension cable
must not exceed 305 m (1000 ft.)
*
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.)
152 mm
(6 in.)
Figure 1
Figure 2
Figure 3
Fill with
3 to 4 in.
of sealant
MXQFWLRQER[UHFRPPHQGHG
Align with
flow stream
Flow
NOTE:
The 8050-1 or the 8052-1 junction boxes can be useful
accessories for this installation option.
CAUTION!
The fluid temperature must not exceed 85 °C (185 °F)
in submersible installations.

3
2350 Temperature Sensor
+
-
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
• Connect the 2350 cable directly to a loop device as shown.
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 (S3L) I/O terminals.
• When the 2350 includes a junction
box, connect the 2350 terminals to any
Digital (S3L) I/O port as shown.
• When the 2350 includes a junction box, connect the 2350
terminals to a loop device 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 Box 5.2 Current Loop With Junction Box
3-8052-1
+
-
4-20
mA FREQ/
DATA
WHT WHT
BLU BLK
N/C RED
SHIELD
SENSOR
INPUT
SHIELD
–
+FREQ/
DATA
+
-
White
Black
Power Supply
DC 12 - 24 V
Loop Input
Loop Input
DATA
GND
SHLD
V+
3-8052-1
4-20
mA FREQ/
DATA
WHT WHT
BLU BLK
N/C RED
SHIELD
SENSOR
INPUT
SHIELD
–
+FREQ/
DATA
3-8052
3-8900.621C
I/O Module 3-8900.401-X 1
2
3
4
5
6
7
8
9
10
11
12
13
14
+5VDC (Black)
Freq. Input (Red)
GND (Shield)
+5VDC (Black)
Freq. Input 2 (Red)
S L (Red)
GND (White/Shield)
+5VDC (Black)
S L (Red)
GND (White/Shield)
3
3
Analog Output 1
Analog Output 2
(if applicable)
(if applicable)
Frequency
Input
1
Frequency
Input 2
OR
S3L
Input
2
S3L
Input
1
+
-
+
-
7
6
5
GND
V+
IN
Black
Red
Shield
White
Optional
Earth ground
3-9900
S3L connector
3-8900
I/O Module Connector
Black
Red
White
White
Black
Red
3-8350
Temperature Transmitter
Black
Red
White
Shield

7. Ordering Information
Mfr. Part No. Code Description
3-2350-1 159 000 021 Temperature sensor, (S3L) output, 3/4in. NPT, 4.6 m (15 ft) cable
3-2350-3 159 000 920 Temperature sensor, 4 to 20 mA output, 3/4in. 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 3/4in. Integral mounting kit
3-8052-1 159 000 755 3/4in. 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 (S3L) configuration/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 field. 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 field:
• 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 sufficient 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. [phone] • Fax [phone]
For Worldwide Sales and Service, visit our website: www.gfsignet.com • Or call (in the U.S.): [phone]
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 field:
• 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 sufficient 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) Configuration/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