GF Signet 2350 User Manual

Signet 2350 Temperature Sensor

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*

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.

2. Specifi cations

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:

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

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

MXQFWLRQER[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