GF Signet 2819-2823 User Manual

Signet 2818-2823 Series Conductivity Sensor

*3-2820.090*

3-2820.090-1 Rev. N 10/13

Description

English

Operating Instructions

2818

2822

2819

2823

2820

2821

Sanitary

Signet 2818-2823 Conductivity/Resistivity Electrodes are designed to provide
versatile installation and accurate sensing across a very broad dynamic range.
These electrodes are built with a controlled surface fi nish to ensure accuracy and
repeatability. The standard electrode is constructed 316 SS or Titanium, but there are
other materials available for maximum chemical compatibility. Reversible threads or
sanitary fl anges allow for maximum installation versatility.

Sanitary fl ange versions are available with an optional NIST Traceability Certifi cate
to meet USP requirements. Coupled with Signet patented measuring circuitry,
a three decade measurement range is achieved without the need for troublesome
electrode platinization. A platinum RTD (PT1000)
optimal temperature sensing.

located within the electrode allows

Features

• Standard process connections

• ¾” NPT Polypro

• Tri-clamp 1½”, 2”

• Opt. 1/2” NPT 316 SS

• 316 SS or Titanium standard electrode

• Alternative electrode materials available

• Hastelloy-C

• Monel

• In-line or submersible mounting

• NIST traceable certifi ed cells ±1% meet USP requirements

Table of Contents

Description.............................................................................................. 1

Features ................................................................................................. 1

Warranty Statement ................................................................................ 2

Product Registration ............................................................................... 2

Safety Information .................................................................................. 2

Dimensions ............................................................................................. 2

Specifi cations ......................................................................................... 3

Wiring ..................................................................................................... 3

Recommended Position ......................................................................... 3

Maintenance ........................................................................................... 4

In-Line Installation .................................................................................. 4

2822 Submersible Installation ................................................................ 4

2823 Submersible Installation ................................................................ 4

General Information and Dimensions

3

Warranty Information

Refer to your local Georg Fischer Sales offi ce 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 offi ce 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,
mishandling (e.g. broken glass,

chemical poisoning, dry-out) or

damaged membrane, freezing

and/or extreme temperatures).

Product Registration

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 and
click on Product Registration Form

• If this is a pdf manual (digital copy),

click here

• Scan the QR Code on the left

Safety Information

1. Do not remove from pressurized lines.

2. Do not exceed max. temperature/pressure specifi cations.

3. Wear safety goggles or fa shield during installation/service.

4. Do not alter product construction.

5. Disconnect instrument power before wiring this sensor.

6. Failure to follow safety instructions may result in
severe personal injury!

Warning / Caution / Danger

Indicates a potential hazard. Failure to follow all warnings
may lead to equipment damage, injury, or death

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.

Dimensions

2818

2.39 mm
(1.28 in.)

2822

4.6 m (15 ft.)
cable (std.)

147 mm
(5.8 in.)

submersion fitting

86 mm
(3.4 in.)

19 mm
(0.75 in.)

58.4 mm
(2.3 in.)

73.66 mm
(2.9 in.)

41.91 mm
(1.65 in.)

12.7 mm
(0.50 in.)

¾ in. NPT

Optional 316 SS

kit #3-2820.390

¾ in. NPT

Sanitary

2819, 2820, 2821

4.6 m (15 ft)
cable (std)

152 mm
(6 in.)

107 mm
(4.2 in.)

49.5 mm
(1.95 in.)

12.7 mm
(0.5 in.)

2823

4.6 m (15 ft)

cable (standard)

203 mm
(8.0 in.)

89 mm
(3.5 in.)

19 mm

(0.75 in.)

T1 = 50 mm (2.0 in.)
T2 = 64 mm (2.5 in.)

¾ in. NPT

2820-x
sensor tip
(nosepiece)

20.3 mm
(0.8 in.)

2821-x
sensor tip
(nosepiece)

7.6 mm
(0.3 in.)

Reversible
fitting assy
for submersion
mounting

¾ in. NPT

76.2 mm
(3.0 in.)

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.

152 mm

(6.0 in.)

126 mm

(5.0 in.)

Note
Tri-clamp is available for
2819, 2820, 2821 only.
T1 or S1 is for 1 to 1½ in.
tees or fl anges.

Note / Technical Notes

Highlights additional information or detailed procedure.

13 mm

2

Signet 2818-2823 Series Conductivity Sensor Instruction Manual

(0.5 in.)

T2 or S2 is for 2 in. tees
or fl anges.