Knick SE 655 N-GEFFT0AM User manual

SE 655 N-GEFFT0AM
Digital Toroidal
Conductivity Sensor
User Manual
English
Latest Product Information: www.knick.de
Memosens
Protocol

2
Intended Use
The SE 655 toroidal conductivity sensors with Memosens protocol are particularly suited for applications in
the chemical industry and for process engineering. The SE 655 sensor is equipped with Memosens technolo-
gy. This allows an integrated sensor diagnostics as well as the saving of calibration data, operating time, sen-
sor designation and serial number in the sensor. The serial number is also printed in the quality certificate and
on the packaging label.
Using the Memosens protocol for data transmission allows the above mentioned sensor data to be transmit-
ted to the measuring device and to be saved and processed.
Thanks to the large measuring range over six decades and the high chemical resistance of the process-wetted
parts made of PEEK, almost every conceivable application is possible, such as concentration determination of
acids, bases and salt solutions, monitoring of product quality
or phase separation of product mixtures.
Safety Instructions
• Make sure that the sensor is without visible mechanical damage.
Use the sensor for the intended purpose only.
• Hazards due to pressure, temperature, aggressive media or other influences are possible, depending on the
location of use. Therefore, the installation, operation, and servicing of the sensor shall only be carried out
by suitably trained personnel authorized by the operating company.
• Manipulations of the equipment other than described in the user manual are not permitted.
• The sensors have been developed in compliance with the applicable European directives
and standards.
Be sure to follow the instructions given in this user manual for connecting and operating
the SE 655 sensors.
• Observe the specified ranges for ambient temperature and process temperature to ensure safe use of the
sensors.
• Take care to maintain the IP 68 protection when installing the sensor.
(Use original gaskets, insert the cables in a professional manner.)
• Make sure that the gaskets are securely in place. Otherwise, the assembly is not tight.
• Do not dismantle the sensor as long as the process medium is under pressure.
Safety Instructions
WARNING – Failure to observe this warning may result in serious injury.
The safety alert symbol on the nameplate means:
Read these instructions for use, observe the Specifications, and follow the Safety
Instructions.
Serial No.:
Electrodeless Conductivity Sensor
14163 Berlin
SE655N-GEFFT0AM
Made in Germany
Temp
0to20bar
0to110 °C
0123456789012
Prel

3
Table of Contents
Safety Instructions ................................................................................2
Intended Use..........................................................................................2
Specifications ........................................................................................4
Chemical Resistance .............................................................................................5
Temperature and Pressure Resistance............................................................6
Electrical Connection............................................................................................7
Identifying the Sensor ..........................................................................................7
Assembly................................................................................................8
Dimension Drawings...........................................................................11
Accessories...........................................................................................13

4
General
Cell factor (installation factor –
for adaption to installation
conditions, see page 10)
1.98/cm
Measuring range 0 ... 2000 mS/cm
Resolution 0.002 mS/cm
Measurement error
(-20 ... +100 °C) ± (0.005 mS/cm + 0.5 % meas. value)
Measurement error
(> 100 °C)
± (0.010 mS/cm + 0.5 % meas. value)
SE 655 material PEEK
Process temperature -20 ... +110 °C G 3/4 (SE 655N-GEFFT0AM)
Temperature response time t90
(DIN 746-1)
Approx. 7 min
Ambient temperature -20 ... +70 °C
Storage temperature -20 ... +80 °C
Process pressure 0 ... 20 bar
Temperature detector Pt1000 (Class A acc. to IEC 60751)
Installation G 3/4 (SE 655N-GEFFT0AM)
NPT 1“ adapter Steel with ZU1046
NPT 1“ adapter PEEK with ZU1052
ANSI 2“ flange PVDF with ZU1035
DN 50 flange Steel with ZU0343
DN 50 flange PVDF with ZU0344
Cable
Length
Connection
3 m (extendable up to 100 m)
Ferrules
Ingress protection (EN 60529) IP 68 (sensor mounted, with original gasket)
Weight Approx. 1 kg
Specifications

5
Specifications
Chemical Resistance - Depending on the Type, Concentration, and Temperature of the
Process Medium
Sensor Gaskets
Medium Concentration Material: PEEK Material: FKM
(other materials on request)
Sodium hydroxide
solution NaOH
0 ... 50 % 20...100 °C (68 ... 212 °F) Not suitable
Nitric acid
HNO
0 ... 10 % 20 ... 100 °C (68 ... 212 °F) 0 ... 120 °C (32 ... 248 °F)
0 ... 40 % 20 °C (68 °F) 0 ... 120 °C (32 ... 248 °F)
Phosphoric acid
HPO
0 ... 80 % 20 ... 100 °C (68 ... 212 °F) 0 ... 120 °C (32 ... 248 °F)
Sulfuric acid
HSO
0 ... 2.5 % 20 ... 80 °C (68 ... 176 °F) 0 ... 120 °C (32 ... 248 °F)
0 ... 30 % 20 °C (68 °F) 0 ... 120 °C (32 ... 248 °F)
Hydrochloric acid
HCl
0 ... 5 % 20 ... 100 °C (68 ... 212 °F) 0 ... 120 °C (32 ... 248 °F)
0 ... 10 % 20 ... 100 °C (68 ... 212 °F)0 ... 120 °C (32 ... 248 °F)

6
P/T Diagram (SE 655N-GEFFT0AM)
P/T Diagram (Assembled Version)
Fig. 2 Pressure/temperature curves depending on the process installation
Pressure [bar]
Temperature [°C]
Temperature [°C]
Pressure [bar]
SE 655 PEEK
DN 50, stainless steel (ZU 0343)
Loose flange
DN50, PVDF (ZU 0344),
ANSI 2“, PVDF (ZU1035)
Thread adapter
NPT 1“, steel (ZU1046)
NPT 1“, steel (ZU1052)
Fig. 1 Pressure/temperature resistance
Temperature and Pressure Resistance
20
16
16
10
0 11020
1.5
60 80
0 11020 60 80
Specifications

7
S
Connect the sensor cable to your measuring device.
Refer to the user manual of your measuring device for information on the electrical connection.
For further information, see www.knick.de.
Electrical Connection
Fig. 3 Wire assignment of Memosens cable
Serial No.:
Electrodeless Conductivity Sensor
14163 Berlin
SE655N-GEFFT0AM
Made in Germany
Temp
0to20bar
0to110 °C
0123456789012
Prel
Specifications
Power supply +
RS485 (A)
RS485 (B)
Power supply – (GND)
Shield
Brown
Green
Yellow
White
Gray
Fig. 4 Model designation / nameplate of SE655N-GEFFT0AM sensor
Identifying the Sensor
The shielding wire is included in the package.
Note: First, pass the sensor cable through the
cable gland. Then, secure the clamp S on the
bare shielding braid of the cable.
The orientation symbol shows the position
of the sensor bore.

8
Assembly, with PTFE washer (for flange protection)
Max. torque 20 Nm, 36 mm wrench
Fig. 6 Assembly with stainless steel DN 50
flange, with PTFE washer
Assembly with NPT 1“ adapter
Max. torque 20 Nm, 41 mm wrench
Assembly
Sensor:
SE 655N-GEFFT0AM
Nut (included with sensor)
Replacement: ZU 0340N
Stainless steel flange
ZU 0343
PTFE washer
DN 50
ZU 0342N
(optional)
O-ring
included with sensor)
Replacement: ZU 0340N
Montage, mit Adapter NPT 1"
max. Anzugsmoment 20 Nm, Schraubenschlüssel SW41
(Bitte Text entsprechend übersetzen)
Fig. 7 Assembly with NPT 1“ adapter
NPT 1” adapter
ZU1046 (1.4571)
ZU1052 (PEEK)
O-ring (included with sensor)
Sensor

9
Assembly
Fig. 8 Assembly with DN 50, ANSI 2“ loose ange
Nut
Flange kit, ZU 0343
(stainless steel)
DN 50 PN 16
Gasket (O-ring)
Sensor
Flange kit,
ZU 0344 DN 50 PN 10
PVDF
Loose flange (PP-GF)
Nut
Flange (PVDF)
Flange kit,
ZU 1035 ANSI 2", 150 lbs
PVDF
Loose flange (PP-GF)
Nut
Flange (PVDF)
Assembly with stainless steel DN 50 flange, without PTFE washer
(flange wetted by process medium)
Max. torque 20 Nm, 36 mm wrench

10
1,40
1,20
1,00
0,80
010 30 50
amax 100
Min. distance 15 mm (no change of cell factor)
With a distance of less than 15 mm to metallic tank or pipe walls, the cell factor will be reduced.
With insulating walls, the cell factor will increase.
Make sure that the
sensor is correctly
positioned.
Minimum water level in
the pipe
(sensor head completely
wetted)
Distance a to
pipe wall [mm]
Fig. 11 Inuence of wall distance to installation factor
Fig. 9 Minimum extent of the free eld without change of the cell factor
Fig. 10 Typical installation in a pipe
Insulating pipe wall
Conductive pipe wall
Installation factor
Assembly
Installation Conditions
5 10 15 20 25
15 mm

11
151 [5.945] 98 [3.858]
G 3/4
SW36
[1.417A/F]
39 [1.535]

24 [0.945]
47 [1.85]
15,5[0.61]
27,5 [1.08]
35 [1.378]
SW41
[1.614A/F]
163 [6.417]
NPT 1"
Fig. 12 Dimensions of the sensor in mm [inches]
Dimension Drawings
across flats A/F
Stainless
steel
Stainless
steel
Stainless
steel

12
4 x 18
18
78
125
165
4 x 18
18
125
165
27
20
8 x 19
18
78
121
165
11
75
102
27
Flange kit DN 50 PN 10, PVDF,
ZU 0344
Flange kit DN 50 PN 16, 316L,
ZU 0343
Fig.13 Dimensions of the anges and adapters in mm
Loose flange Flange (PVDF)
Flange (stainless steel)
Dimension Drawings
4 x 18
18
78
125
165
4 x 18
18
125
165
27
20
8 x 19
18
78
121
165
11
75
102
27
4 x 18
18
78
125
165
4 x 18
18
125
165
27
20
8 x 19
18
78
121
165
11
75
102
27
Flange kit ANSI 2", 150 lbs
ZU1035
Loose flange (PP-GF) Flange
4 x 18
18
78
125
165
4 x 18
18
125
165
27
20
8 x 19
18
78
121
165
11
75
102
27
NPT 1“ stainless steel
ZU1046
NPT 1“ PEEK ZU1052
NPT 1"
41 mm A/F

13
Order No.
NPT 1” adapter Material: stainless steel ZU1046
NPT 1” adapter Material: PEEK ZU1052
Flange, DN 50 PN 16 Material: 316 L
When measuring in aggressive media, you
require sealing set C.
ZU0343
Flange, DN 50 PN 10 Material: PVDF ZU0344
Flange, ANSI 2",
150 lbs
Material: PVDF ZU1035
Sealing set A
spare part for
SE655N-GEFFT0AM
Nut + FKM O-ring (3 x) ZU 0340N
Sealing set C PTFE washer DN 50
(protects ZU 0343 flange against aggressive
media)
ZU 0342N
O-rings Material: FKM O-Ring 30x2,5 FKM
Material: EPDM-FDA O-Ring 30x2,5 EPDM-FDA
Material: FFKM O-Ring 30x2,5 FFKM
Conductivity standard KCl 0.1 mol/l 250 ml 12.88 mS/cm +1.5% CS-C12880K/500
For more accessories enabling the installation in immersion fittings or flow-through fittings,
refer to our website: www.knick.de.
Accessories

093701
Knick
Elektronische Messgeräte
GmbH & Co. KG
Beuckestr. 22 • 14163 Berlin
Germany
Phone: [phone]
Fax: [phone]
[email protected]
www.knick-international.com
20180420
TA-SE655N-MSProt-KNE01
Copyright 2018 • Subject to change
Version: 1.2
This document was last updated on April 20, 2018
The latest documents are available for download on our
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