JUMO Ex-i User guide

70753000T99Z001K000
V1.00/EN/00770263/2022-05-13
JUMO Ex-i
Repeater power supply and
input isolating amplifier
Safety Manual

Contents
Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
1.2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1.3 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2 Safety requirements and installation instructions. . . . . . . . . . . . . . . . . . 7
2.1 Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.2 Intrinsic safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.3 Installation in zone 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2.4 Areas that are potentially explosive due to dust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2.5 Safety-related applications (SIL). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2.6 Safety data according to ATEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
2.7 UL note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1 Connection instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
3.2 Electrostatic discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
3.3 Design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
3.4 Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
3.5 Inputs (intrinsically safe) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
3.6 Output of current without HART communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
3.7 Output of current with HART communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
3.8 HART® communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
3.9 Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
3.10 Voltage supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
3.11 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
3.12 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
3.13 Connecting the lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
3.14 Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
3.15 Level conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
4 Comparison of the safety data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5 Safety-related applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.1 Safety function and safety requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
5.2 1-channel operation as a repeater power supply and input isolating amplifier for SIL2 (1oo1)
applications 19
5.2.1 Safety/integrity requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
5.3 2-channel operation as a repeater power supply and input isolating amplifier for SIL3 (1oo2)
applications 20
5.3.1 Safety/integrity requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
5.4 Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
5.5 Installation and startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Contents
5.6 Notes for operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
5.7 Regular tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
5.8 Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
5.9 Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
5.10 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

5
1 Introduction
1 Introduction
1.1 Safety information
General
This manual contains information that must be observed in the interest of your own safety and to avoid
material damage. This information is supported by symbols which are used in this manual as indicated.
Please read this manual before starting up the device. Store this manual in a place that is accessible to
all users at all times.
If difficulties occur during startup, please do not intervene in any way that could jeopardize your warranty
rights!
Warning symbols
WARNING!
This symbol in connection with the signal word indicates that personal injury may occur if the respective
precautionary measures are not carried out.
CAUTION!
This symbol indicates that components could be destroyed by electrostatic discharge (ESD = Electro
Static Discharge) if the respective cautionary measures are not taken.
Only use the ESD packages intended for this purpose to return device inserts, assembly groups, or as-
sembly components.
NOTICE!
This note in connection with the signal word indicates that material damage or data loss will occur if
the respective precautionary measures are not taken.
Note symbols
NOTE!
This symbol refers to important information about the product, its handling, or additional benefits.
REFERENCE!
This symbol refers to additional information in other sections, chapters, or other manuals.

1 Introduction
6
1.2 Description
The JUMO Ex-i power supply/input isolating amplifier 707530 is designed for operating intrinsically safe
transmitters (Ex-i) and mA current sources installed in potentially explosive (Ex) areas. The connected
2-wire transmitters are supplied with energy and analog 0/4 to 20 mA measured values are transmitted
from the potentially explosive area to the non-explosive area.
The external connection defines whether the device operates in supply isolating amplifier mode or iso-
lating amplifier mode. The output of the module can be operated in active or passive mode. Digital
(HART) communication signals can be superimposed over the analog measured value on the Ex or non
Ex side and transmitted bidirectional.
To increase the HART impedance in low-resistance systems an additional resistor can be activated in
the output circuit using the switch on the device's front. The device provides a 3-way electrical isolation
and the energy supply is designed as wide range power supply (24 to 230 V).
SIL measuring chains up to SIL2 and, in the event of a 2-channel setup, up to SIL3, are possible with
the Ex-i repeater power supply and input isolating amplifier.
1.3 Block diagram
Output signal voltage
0 to 5 V
1 to 5 V
Output signal current (active)
0 to 20 mA
4 to 20 mA
Output signal current (passive)
0 to 20 mA
4 to 20 mA
Voltage supply
AC/DC to24 230 V
-20 +10 %, 50 60 Hzto to
Measuring input
Current
0 to 20 mA
4 to 20 mA
Transmitter voltage supply
> 16 V at 20 mA
> 15.3 V at 22.5 mA
Ex-i Supply/Input Isolating AmplifierPower

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2 Safety requirements and installation instructions
2 Safety requirements andi nstallation instructions
2.1 Installation instructions
2.2 Intrinsic safety
– The device is associated equipment with an EPL [Ga], [Da] (category 1) of the ignition protection
type "intrinsic safety" and can be installed as a device with the EPL Gc (category 3) in the potentially
explosive area of Zone 2. The intrinsically safe electrical circuits can be routed up to Zone 0 /
Zone 20. It meets the requirements from the following standards.
EN 60079-0, EN 60079-11, EN 60079-15
For detailed information, please refer to the declarations of conformity.
– The installation, operation, and maintenance must be carried out by personnel with electrotechnical
qualifications. Follow the described installation instructions.
– Adhere to the applicable conditions and safety regulations (including national safety regulations)
and the general rules of engineering during set-up and operation.
– Observe the safety information, conditions, and limits of use specified in the product documentation.
Comply with them.
– Opening or modifying the device is not admissible. Do not repair the device yourself; instead, you
should replace it with an equivalent device. Repairs must only be performed by the manufacturer.
The manufacturer is not liable for damage resulting from violations of this.
– The protection type IP20 (IEC/EN 60529) of the device is intended for a clean and dry environment.
Do not expose the device to any mechanical and/or thermal stresses that exceed the described lim-
its.
– Only use the device up to a pollution degree of 2 according to IEC 60664-1.
– The connected, non-intrinsically safe electrical circuits must have a maximum overvoltage
category II according to IEC 60664-1.
– The device must be taken out of operation if it is damaged, has been improperly stressed or stored,
or malfunctions.
– The device complies with the EMC regulations for industrial areas (EMC class A). It may cause EMC
problems if used in residential areas.
– The products must be installed according to all relevant standards for electrical systems in poten-
tially explosive areas.
– Only use copper cables as connecting cables.
– The device is approved for intrinsically safe (Ex i) electrical circuits up to Zone 0 (gas) and Zone 20
(dust) of the Ex area. The safety technology values for intrinsically safe equipment and the connect-
ing lines must be observed for the hook-up process (EN 60079-14) and the values specified in this
installation note and/or the EU examination certificate must be observed.
– During measurements on the intrinsically safe side, make sure to observe the valid conditions rele-
vant to the interconnection of intrinsically safe equipment. Only use the approved measuring devic-
es in intrinsically safe electrical circuits.
– If the device has been used in non-intrinsically safe electrical circuits, using it again in intrinsically
safe electrical circuits is prohibited! Clearly mark the device as not intrinsically safe.

2 Safety requirements and installation instructions
8
2.3 Installation in zone 2
2.4 Areas that are potentially explosive due to dust
2.5 Safety-related applications (SIL)
When using the device in safety-related applications, observe the instructions in the chapter "Safety-re-
lated applications", as the requirements for the safety-related function vary.
chapter 5 "Safety-related applications", Page 19
– Adhere to the specified conditions for use in potentially explosive areas. Install the device in a suit-
able approved housing with at least IP54 protection that meets the requirements of EN 60079-15,
Section 1.
Also observe the requirements of EN 60079-14.
– In potentially explosive areas, connecting and disconnecting cables and connectors in non-intrinsi-
cally safe electrical circuits or actuating DIP switches is only permitted in a de-energized state or if
no potentially explosive atmosphere is present.
– The device must be taken out of operation and removed from the Ex area immediately if it is dam-
aged, has been improperly stressed or stored, or malfunctions.
– Temporary malfunctions (transients) must not exceed the value 497 V (355 V x 1.4).
– The device is not designed for installation in Zone 22.
– If you nevertheless want to use the device in Zone 22, you have to install it in a housing according
to EN 60079-31. In doing so, observe the maximum surface temperatures. Adhere to the require-
ments of EN 60079-14.
– Only carry out interconnection with the intrinsically safe electrical circuit in areas that are potentially
explosive due to dust (Zones 20, 21, or 22) if the equipment connected to this electrical circuit is
approved for this zone (e.g. category 1D, 2D, or 3D).

9
2 Safety requirements and installation instructions
2.6 Safety data according to ATEX
Repeater power supply amplifier operation
Input isolating amplifier operation
2.7 UL note
The safety requirements resulting from the UL approval are included in the "Control Drawing". The "Con-
trol Drawing" is part of the package leaflet.
Max. output voltage Uo25.2 V
Max. output current Io93 mA
Max. output power Po587 mW
Max. external inductance Lo,
max. external capacitance Co
Simple electrical circuit IIB: 4 mH/820 nF
Simple electrical circuit IIC: 2 mH/107 nF
Safety-related maximum voltage
Um
Supply terminals AC/DC 253 V
Output terminals AC 253 V, DC 125 V
Max. voltage Ui≤30 V
Max. current Ii≤150 mA
Max. internal inductance LiNegligible
Max. internal capacitance CiNegligible
Safety-related maximum voltage
Um:
Supply terminals AC/DC 253 V
Output terminals AC 253 V

2 Safety requirements and installation instructions
10