GF Signet 2350 User manual

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 style of the 9900 Transmitter.
3-2350.090-1 Rev. 11 10/17
*3-2350.090-1*
Signet 2350 Temperature Sensor
English
Description
Dimensions
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Product Manual
Pressure/Temperature Graph
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

2Signet 2350 Temperature Sensor
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!
General
Compatibility......................... Signet 8900 Multi-Parameter Controller
Signet 9900 Transmitter
9950 Dual Channel 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, τ.................. 10 seconds
Process connection .............. 3/4 in. NPT male thread
Rear connection ................... 3/4 in. 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)
Standards & Approvals
CE
RoHS Compliant
Manufactured under ISO 9001 for Quality, ISO 14001
for Environmental Management and OHSAS 18001 for
Occupational Health and Safety.
China RoHS (Go to www.gfsignet.com for details)
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.
Caution / Warning / Danger
Indicates a potential hazard. Failure to follow all warnings
may lead to equipment damage, injury, or death
Electrostatic Discharge (ESD) / Electrocution Danger
Alerts user to risk of potential damage to product by ESD,
and/or risk of potential of injury or death via electrocution.
Personal Protective Equipment (PPE)
Always utilize the most appropriate PPE during
installation and service of Signet products.
Pressurized System Warning
Sensor may be under pressure, take caution to vent
system prior to installation or removal. Failure to do so
may result in equipment damage and/or serious injury.
Hand Tighten Only
Overtightening may permanently damage product threads
and lead to failure of the retaining nut.
Do Not Use Tools
Use of tool(s) may damage product beyond repair and
potentially void product warranty.
Refer to your local Georg Fischer Sales office for the most
current warranty statement.
All warranty and non-warranty repairs being returned must
include a fully completed Service Form and goods must be
returned to your local GF Sales office or distributor.
Product returned without a Service Form may not be
warranty replaced or repaired.
Signet products with limited shelf-life (e.g. pH, ORP, chlorine
electrodes, calibration solutions; e.g. pH buffers, turbidity
standards or other solutions) are warranted out of box but not
warranted against any damage, due to process or application
failures (e.g. high temperature,
chemical poisoning, dry-out) or
mishandling (e.g. broken glass, damaged membrane, freezing
and/or extreme temperatures).
Thank you for purchasing the Signet line of Georg Fischer
measurement products.
If you would like to register your product(s), you can now
register online in one of the following ways:
• Visit our website www.gfsignet.com.
Under Service and Support click on
Product Registration Form
• If this is a pdf manual (digital copy), click here
Warranty Information
Product Registration
Safety Information
Specifications

3
Signet 2350 Temperature Sensor
Installation
The compact integral assembly can be installed using the
following directions:
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 9900 Transmitter
(refer to 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
*
3-8052
Integral mount kit
3-9900
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
Align with
flow stream
Flow
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.
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.)
Figure 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.
Fill with
3 to 4 in.
of sealant
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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.

4Signet 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.
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.
4 to 20 mA Loop Wiring
• The 2350-3 provides a 4 to 20 mA loop output when powered with 12 to 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 4 to 20 mA Span Adjustment, page 5.
Current Loop With No Junction Box 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
+
-
+
-
3-9950
S3L connector
Loop
+V
FREQ
+V
FREQ
DATA
GND
Loop
CH2 CH1
+V
FREQ
DATA
GND
DC POWER
Black
White
X
No connection
Shield
Black
Red
Shield
White
Optional
Earth ground
3-9900
S3L connector
3-8900
I/O Module Connector
Black
Red
White
White
Black
Red
Shield
Wiring

5
Signet 2350 Temperature Sensor
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 below.
NOTE: The RED wire, which is not connected during normal 4 to 20 mA operation, assumes an important role in the following
procedures.
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.)
• With power applied as described on page 4, 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.
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 on page 4, 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 0252 Configuration Tool.
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 on page 4, 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
+
-
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 to 20 mA Span Adjustment
WARNING!
Not protecting the red wire may cause the 4 to 20 mA
span to be reset.
Wire Nut

6Signet 2350 Temperature Sensor
Notes

7
Signet 2350 Temperature Sensor
Notes

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
3-0252 159 001 808 Configuration Tool
contact factory Custom cable length available
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. 11 10/17 English © Georg Fischer Signet LLC 2017
Ordering Information