GEM 1231 Manuel utilisateur
GEMÜ 1231
Electrical position indicator ATEX
Operating instructions
EN
further information
webcode: GW-1231
All rights including copyrights or industrial property rights are expressly reserved.
Keep the document for future reference.
© GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG
19.11.2019
www.gemu-group.com2 / 24GEMÜ 1231
Contents
1 General information .................................................. 4
1.1 Information ......................................................... 4
1.2 Symbols used ..................................................... 4
1.3 Warning notes .................................................... 4
2 Safety information .................................................... 5
3 Product description ................................................... 6
4 GEMÜ CONEXO ......................................................... 7
5 Correct use ............................................................... 8
6 Order data ................................................................. 9
7 Technical data .......................................................... 10
8 Dimensions ............................................................... 10
9 Manufacturer's information ....................................... 11
9.1 Delivery ............................................................... 11
9.2 Packaging ........................................................... 11
9.3 Transport ............................................................ 11
9.4 Storage ............................................................... 11
10 Assembly and installation ......................................... 11
11 Electrical connection ................................................. 15
12 Error clearance .......................................................... 17
13 Inspection and servicing ........................................... 18
14 Disassembly .............................................................. 18
15 Disposal .................................................................... 18
16 Returns ..................................................................... 18
17 Declaration of conformity according to 2014/30/EU
(EMC Directive) ......................................................... 19
18 EU Declaration of conformity in accordance with
2014/34/EU (ATEX) ................................................... 20
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1 General information
1 General information
1.1 Information
– The descriptions and instructions apply to the standard versions. For special versions not described in this document
the basic information contained herein applies in combination with any additional special documentation.
– Correct installation, operation, maintenance and repair work ensure faultless operation of the product.
– Should there be any doubts or misunderstandings, the German version is the authoritative document.
– Contact us at the address on the last page for staff training information.
1.2 Symbols used
The following symbols are used in this document:
Symbol Meaning
Tasks to be performed
Response(s) to tasks
– Lists
1.3 Warning notes
Wherever possible, warning notes are organised according to the following scheme:
SIGNAL WORD
Type and source of the danger
Possible
symbol for the
specific
danger
Possible consequences of non-observance.
Measures for avoiding danger.
Warning notes are always marked with a signal word and sometimes also with a symbol for the specific danger.
The following signal words and danger levels are used:
DANGER
Imminent danger!
▶Non-observance can cause death or severe injury.
WARNING
Potentially dangerous situation!
▶Non-observance can cause death or severe injury.
CAUTION
Potentially dangerous situation!
▶Non-observance can cause moderate to light injury.
NOTICE
Potentially dangerous situation!
▶Non-observance can cause damage to property.
The following symbols for the specific dangers can be used within a warning note:
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Symbol Meaning
Danger from potentially explosive atmosphere
2 Safety information
The safety information in this document refers only to an individual product. Potentially dangerous conditions can arise in
combination with other plant components, which need to be considered on the basis of a risk analysis. The operator is re-
sponsible for the production of the risk analysis and for compliance with the resulting precautionary measures and regional
safety regulations.
The document contains fundamental safety information that must be observed during commissioning, operation and mainten-
ance. Non-compliance with these instructions may cause:
– Personal hazard due to electrical, mechanical and chemical effects.
– Hazard to nearby equipment.
– Failure of important functions.
– Hazard to the environment due to the leakage of dangerous materials.
The safety information does not take into account:
– Unexpected incidents and events, which may occur during installation, operation and maintenance.
– Local safety regulations which must be adhered to by the operator and by any additional installation personnel.
Prior to commissioning:
1. Transport and store the product correctly.
2. Do not paint the bolts and plastic parts of the product.
3. Carry out installation and commissioning using trained personnel.
4. Provide adequate training for installation and operating personnel.
5. Ensure that the contents of the document have been fully understood by the responsible personnel.
6. Define the areas of responsibility.
7. Observe the safety data sheets.
8. Observe the safety regulations for the media used.
During operation:
9. Keep this document available at the place of use.
10. Observe the safety information.
11. Operate the product in accordance with this document.
12. Operate the product in accordance with the specifications.
13. Maintain the product correctly.
14. Do not carry out any maintenance work and repairs not described in this document without consulting the manufacturer
first.
In cases of uncertainty:
15. Consult the nearest GEMÜ sales office.
2 Safety information
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3 Product description
3 Product description
3.1 Construction
1
2
5
3
4
Item Name Materials
1 Housing cover PSU
2 Housing base PSU
3 Electrical connection PP
4 Adapter piece Stainless steel
5 Mounting kit, valve-specific Stainless steel
Seals NBR
3.2 Description
The GEMÜ 1231 electrical position indicator is suitable for mounting to pneumatically operated linear actuators. The position
of the valve spindle is reliably electronically detected and reported via proximity switches through play-free and non-positive
mounting. GEMÜ 1231 has been designed specially for valves with a stroke of 2 to 20 mm .
3.3 Function
The GEMÜ 1231 electrical position indicator is used for reporting and controlling the position of valves that are actuated with
pneumatic linear actuators. The spindle of the electrical position indicator is positively connected to the spindle of the linear
actuator and is moved with the linear movement of the actuator. The cam fixed to the spindle then actuates the integrated
proximity switches, which are used to transmit the electronic signal. Depending on the version, the electrical position indicator
is equipped with one to two proximity switches.
3.4
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4 GEMÜ CONEXO
Order variant
In the corresponding design with CONEXO, this product has an RFID chip (1) for electronic identification purposes. The posi-
tion of the RFID chip can be seen below. The CONEXO pen helps read out information stored in the RFID chips. The CONEXO
app or CONEXO portal is required to view this information.
RFID chip
For further information please read the operating instructions for CONEXO products or the CONEXO datasheet.
Products such as the CONEXO app, the CONEXO portal and the CONEXO pen are not components included in the scope of de-
livery and need to be ordered separately.
4 GEMÜ CONEXO
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5 Correct use
5 Correct use
DANGER
Danger of explosion
▶Danger of death or severe injury.
●Only use the product in potentially explosive zones confirmed in the declaration of conformity.
WARNING
Improper use of the product!
▶Risk of severe injury or death.
▶Manufacturer liability and guarantee will be void.
●Only use the product in accordance with the operating conditions specified in the contract documentation and this docu-
ment.
The product GEMÜ 1231 is designed to be fitted on a GEMÜ valve for electrical detection of the position of the linear actuators.
The product works with 2-wire NAMUR proximity switches. The product is non-positively connected to the actuator spindle by
means of a mounting kit.
The product GEMÜ 1231 is intended for use in potentially explosive areas of zones 1 and 2 with gases, mists or vapours and
zones 21 and 22 with combustible dusts in accordance with EU directive 2014/34/EU (ATEX).
The product has the following explosion protection marking:
Gas: II 2G Ex ib IIC/IIB T6 Gb
Dust: II 2D Ex ib IIIC T80°C Db
EU type examination certificate: IBExU04ATEX1175 X
Notified body: IBExU, No. 0637
The product has been developed in compliance with the following harmonised standards:
– EN 60079-0 : 2012 + A11 : 2013
– EN 60079-11 : 2012
Use of the product is permissible in the following ambient temperature ranges: -20°C to +60°C
For use in potentially explosive areas, the following conditions or operation limits must be observed:
– For the explosion group IIC, a warning note in accordance with 29.12 g) is required:
WARNING – danger of electrostatic discharges!
– If the device is equipped with an M12 connector, only pre-fitted cables approved for the intrinsic safety "i" type of igni-
tion protection may be used. The differential voltage for isolated intrinsically safe electric circuits must not exceed 30
V. The cables and connectors must be laid in a way that avoids damage. The operating instructions for the separately
certified connectors with cables must be observed.
– Open connectors must be suitably protected to prevent the penetration of dust.
6 Order data
The order data provide an overview of standard configurations.
Please check the availability before ordering. Other configurations available on request.
Note: Mounting kit 1231 S01 Z...dependent on valve type. Please order separately. Data required on valve type, DN, control
function and actuator size.
Order codes
1 Type Code
Electrical position indicator ATEX 1231
2 Fieldbus Code
Without 000
3 Accessories Code
Accessories Z
4 Device version Code
Open/close A00
Open A01
Closed A02
5 Switch Code
Proximity switch, 2-wire, NAMUR
P+F, NJ1,5-6,5-15-N-Y180094
207
6 Electrical connection Code
M16 cable gland 1101
M16 Skintop cable gland 1103
M12 plug connector, 4-pin 1110
7 Connection diagram Code
Terminals, NAMUR 202
M12 plug, 4-pin 203
8 CONEXO Code
without
Integrated RFID chip for electronic identification
and traceability
C
Order example
Order option Code Description
1 Type 1231 Electrical position indicator ATEX
2 Fieldbus 000 Without
3 Accessories Z Accessories
4 Device version A00 Open/close
5 Switch 207 Proximity switch, 2-wire, NAMUR
P+F, NJ1,5-6,5-15-N-Y180094
6 Electrical connection 1101 M16 cable gland
7 Connection diagram 202 Terminals, NAMUR
8 CONEXO without
6 Order data
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7 Technical data
7 Technical data
7.1 Temperature
Storage temperature: 0 to 40 °C
Ambient temperature: -20 to 60 °C
7.2 Product conformities
Explosion protection: ATEX (2014/34/EU)
ATEX marking: Gas: II 2G Ex ib IIC/IIB T6 Gb
Dust: II 2D Ex ib IIIC T80°C Db
EU type examination certificate: IBExU04ATEX1175 X
Notified body: IBExU, No. 0637
7.3 Mechanical data
Installation position: Optional
Weight: 420 g
Protection class: IP 65
Travel sensor: 2 to 20 mm
7.4 Electrical data
Switch type: 2-wire proximity switch (NAMUR)
Supply voltage: 8 V DC
Current consumption: ≤ 0.1 A (damped)
≥ 3 mA (undamped)
Electrical connection
type:
M16
cable gland
M16
Skintop cable gland
M12 plug,
4-pin
Connection thread M16 x 1.5 M16 x 1.5 M12
Cable diameter 4.5 to 7mm 4 to 10mm -
Recommended
wire cross section
0.75 mm² 0.75 mm² -
8 Dimensions
70
□ 50
72
M 4x6
Dimensions in mm
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