GEM 4241 Manual de usuario
GEMÜ 4241
Combi switchbox
Operating instructions
EN
further information
webcode: GW-4241
All rights including copyrights or industrial property rights are expressly reserved.
Keep the document for future reference.
© GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG
19.10.2023
www.gemu-group.com2 / 22GEMÜ 4241
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 ............................................. 5
4 GEMÜ CONEXO .................................................... 7
5 Correct use .......................................................... 7
6 Order data ........................................................... 8
7 Technical data ..................................................... 9
8 Dimensions .......................................................... 11
9 Manufacturer's information .................................. 12
9.1 Delivery .......................................................... 12
9.2 Packaging ...................................................... 12
9.3 Transport ....................................................... 12
9.4 Storage ........................................................... 12
10 Assembly and installation .................................... 12
10.1 Preparations for installing the valve (linear
actuator) ........................................................ 12
10.4 Threaded adapter assembly (linear actu-
ator) ................................................................ 14
11 Pneumatic connection ......................................... 16
12 Electrical connection ........................................... 17
13 Manual override ................................................... 19
14 Troubleshooting .................................................. 19
15 Inspection and maintenance ............................... 19
16 Disassembly ........................................................ 20
17 Disposal .............................................................. 20
18 Returns ................................................................ 20
19 EU Declaration of conformity in accordance with
2014/34/EU (ATEX) ............................................. 21
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www.gemu-group.com4 / 22GEMÜ 4241
1 General information
1 General information
1.1 Information
- The descriptions and instructions apply to the standard ver-
sions. For special versions not described in this document
the basic information contained herein applies in combina-
tion 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 Ger-
man 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 of explosion!
Danger of explosion
2 Safety information
The safety information in this document refers only to an indi-
vidual 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 com-
pliance with the resulting precautionary measures and re-
gional safety regulations.
The document contains fundamental safety information that
must be observed during commissioning, operation and main-
tenance. 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
substances.
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 de-
scribed in this document without consulting the manufac-
turer first.
In cases of uncertainty:
15. Consult the nearest GEMÜ sales office.
3 Product description
3.1 Construction
1
2
5
3
4
Item Name Materials
1 Housing cover PC
2 Housing base PPS
3 Electrical connection SS, PP
4 Adapter piece SS
5 Mounting kit, valve spe-
cific
SS, PP
Seals NBR
3.2 Description
The GEMÜ 4241 combi switchbox is suitable for mounting to
pneumatically operated linear actuators. The position of the
valve spindle is reliably electronically detected and fed back
via the play-free and non-positive mounting by means of a 2-
wire proximity switch (NAMUR). Integrated pilot valves enable
direct activation of the process valve connected to them.
3.3 Function
The GEMÜ 4241 combi switchbox indicates the current posi-
tion of the valve. When the valve is opened, the spindle in the
combi switchbox moves upwards and indicates that the valve
is OPEN using the communication interface. When the valve is
closed, the spring in the mounting kit presses the spindle in
the combi switchbox downwards and indicates that the valve
is CLOSED using the communication interface.
3 Product description
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3 Product description
3.4 Product label
Device version Design in accordance with order data
Item number Traceability number Serial number
Device-specific data
Year of manufacture
The manufacturing month is coded under the traceability
number and can be requested from GEMÜ. The product was
manufactured in Germany.
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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 po-
sition of the RFID chip can be seen below. The CONEXO pen
helps read out information stored in the RFID chips. The CON-
EXO app or CONEXO portal is required to display this informa-
tion.
1
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 included in the scope of delivery and
need to be ordered separately.
5 Correct use
DANGER
Danger of explosion!
▶Risk of severe injury or death.
●Do not use the product in potentially
explosive zones.
●Only use the product in potentially ex-
plosive zones confirmed in the declara-
tion 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 in
this document.
The product with the special version X order option is inten-
ded for use in potentially explosive areas of zone 2 with
gases, mists or vapours and zone 22 with combustible dusts
in accordance with EU directive 2014/34/EU (ATEX).
The product has the following explosion protection marking:
ATEX
Gas: II 2G Ex ib IIB T4 Gb
Dust: II 2D Ex ib IIIC T120°C Db
EC type examination certificate: IBExU17ATEX 1160 X
Notified body: IBExU, No. 0637
IECEx
Gas: Ex ib IIB T4 Gb
Dust: Ex IIIC T120°C Db
Certificate: IECEx IBE 19.0017 X
The product has been developed in compliance with the fol-
lowing harmonised standards:
- EN 60079-0:2012+A11:2013
- EN 60079-11:2012
Use of the product is permissible in the following ambient
temperature ranges: 0°C to +40°C
For use in potentially explosive areas, the following
conditions or operation limits must be observed:
Special conditions of use
1. The special conditions of the Ex components used must
be observed.
2. The housing must be installed protected against mechan-
ical influences.
3. Layers of dust > 5 mm must be avoided.
5 Correct use
6 Order data
The order data provide an overview of standard configurations.
Please check the availability before ordering. Other configurations available on request.
Note: A valve specific mounting kit is required for assembly. For designing the mounting kit, the valve type, nominal size, control
function and actuator size must be stated.
Order codes
1 Type Code
Combi switchbox 4241
2 Fieldbus Code
Without 000
3 Accessory Code
Accessory Z
4 Housing material Code
PPS base, PC cover 01
5 Action Code
Single acting, with manual override 01
Double acting, with manual override 02
Single acting, without manual override E1
6 Electrical connection Code
M16 Skintop cable gland; connection diagram "N" 03
7 Pneumatic connection Code
G1/8 connection thread 01
Air supply 6 mm angled connection,
exhaust air 6 mm angled connection
04
Air supply 6 mm T-connection,
exhaust air 6 mm angled connection
05
7 Pneumatic connection Code
G1/8 connection thread
(for IP67 or piped air outlet)
E1
Air supply 6 mm angled connection,
exhaust air 6 mm angled connection
(for IP67 or piped air outlet)
E4
Air supply 6 mm T-connection,
exhaust air 6 mm angled connection
(for IP67 or piped air outlet)
E5
8 Switch Code
Proximity switch, 2-wire, NAMUR
P+F, NJ1,5-6,5-15-N-Y180094
N1
9 Connection diagram Code
NAMUR terminals OPEN/CLOSED
8 V NAMUR sensor; 24 V DC pilot valve
N1
NAMUR terminals OPEN/CLOSED
8 V NAMUR sensor; 12 V DC pilot valve
N2
10 Travel sensor version Code
Potentiometer, 75 mm length 075
11 Special version Code
ATEX (2014/34/EU), IECEx X
Order example
Ordering option Code Description
1 Type 4241 Combi switchbox
2 Fieldbus 000 Without
3 Accessory Z Accessory
4 Housing material 01 PPS base, PC cover
5 Action 01 Single acting, with manual override
6 Electrical connection 03 M16 Skintop cable gland; connection diagram "N"
7 Pneumatic connection E1 G1/8 connection thread
(for IP67 or piped air outlet)
8 Switch N1 Proximity switch, 2-wire, NAMUR
P+F, NJ1,5-6,5-15-N-Y180094
9 Connection diagram N1 NAMUR terminals OPEN/CLOSED
8 V NAMUR sensor; 24 V DC pilot valve
10 Travel sensor version 075 Potentiometer, 75 mm length
11 Special version X ATEX (2014/34/EU), IECEx
6 Order data
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7 Technical data
7.1 Medium
Working medium: Quality classes to DIN ISO 8573-1
Dust content: Class 3, max. particle size 5 μm, max. particle density 5 mg/m³
Pressure dew point: Size 1
Class 3, max. pressure dew point -20 °C
Size 2
Class 4, max. pressure dew point +3 °C
Oil content: Size 1
Class 3, max. oil concentration 1 mg/m³
Size 2
Class 5, max. oil concentration 25 mg/m³
7.2 Temperature
Ambient temperature: 0 to 50 °C
Media temperature: 0 — 50 °C
Storage temperature: 0 — 40 °C
7.3 Pressure
Operating pressure: 2 to 7 bar
Flow rate: 250 Nl/min
The applied pressure must not exceed the maximum control pressure of the process valve.
7.4 Product compliance
Machinery Directive: 2006/42/EC
Explosion protection: ATEX (2014/34/EU)
IECEx
ATEX marking: Gas: II 2G Ex ib IIB T4 Gb
Dust: II 2D Ex ib IIIC T120°C Db
EC type examination certificate: IBExU17ATEX 1160 X
Notified body: IBExU, No. 0637
IECEx marking: Gas: Ex ib IIB T4 Gb
Dust: Ex IIIC T120°C Db
Certificate: IECEx IBE 19.0017 X
7.5 Mechanical data
Installation position: Optional
Weight: 420 g
Protection class: IP 65 acc. to EN 60529
IP 67 acc. to EN 60529, is reached with piped air outlet
Stroke: 5 to 75 mm
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7 Technical data
7.6 Electrical data
7.6.1 2-wire proximity switch (NAMUR)
Supply voltage: 8 V DC
Current consumption: ≤ 0.1 mA (damped)
≥ 3 mA (undamped)
Electrical connection
type:
Connection thread: M16 x 1.5, WAF 19
Cable diameter: 4.5 to 10mm
Recommended wire cross section: 0.75 mm² x 8 cables
7.6.2 Pilot valve
Rated voltage: 24 V DC ±10 % (code N1)
12 V DC -5/+10 % (code N2)
Rated power: 0.5 W
Resistance: 1152 Ω ± 5 % (code N1)
288 Ω ± 5 % (code N2)
Duty cycle: Continuous duty
7.7 Intrinsically safe characteristic values
7.7.1 Proximity switch
Proximity switch: Ui = 16 V
Ii = 52 mA
Pi = 169 mW
Li = 50 µH
Ci = 30 nF
7.7.2 Pilot valve
Pilot valve, code N1: Ui = 30 V
Ii = 330 mA
Li negligible
Ci negligible
Pilot valve, code N2: Ui = 30 V
Ii = 330 mA
Li negligible
Ci negligible
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7 Technical data
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