JUMO EM Series User manual

EM type series
Panel-mounting thermostats
Operating instructions
60202600T90Z001K000
V4.00/EN/00073776
PEDPressure
Equipment
Directive

Please read this operating manual before starting up the device. Keep the oper-
ating manual in a place accessible to all users at all times. Please help us to
improve these instructions where necessary. Your comments are highly appreci-
ated.
Phone +49(0)6 61 - 60 03-7 16
Fax +49(0)6 61 - 60 03-5 04
All necessary settings and required work inside the device are described in this
operating manual. If any difficulties should still arise dur-ing start-up, you are
asked not to carry out any unauthorized manipulations on the unit. You could
endanger your rights under the device warranty! Please contact the nearest
subsidiary or the head office.

Inhalt
1 Introduction .................................................................................. 5
1.1 Typographical conventions ......................................................................... 5
1.1.1 Warning signs ................................................................................................. 5
1.1.2 Indicative signs ............................................................................................... 5
1.2 Application .................................................................................................... 6
1.3 Identification ................................................................................................. 6
1.4 Safety information ........................................................................................ 7
2 Identifying the device .................................................................. 8
2.1 Type plate (example) .................................................................................... 8
2.2 Type designation .......................................................................................... 8
3 Installation .................................................................................... 9
3.1 Dimensions ................................................................................................... 9
3.2 Fastening the panel-mounting thermostat .............................................. 10
3.2.1 Fasting the switching head .......................................................................... 10
3.3 Capillary / temperature probe / sheath .................................................... 11
3.3.1 General information ...................................................................................... 11
3.3.2 Approved process connections ................................................................... 12
3.3.3 Sheath made of steel 22, 23, 32, 41, 42 and 45 .......................................... 12
3.3.4 Sheath made of stainless steel 20, 22, 40 and 41 ....................................... 14
3.3.5 Sheath made of brass 20 and 40 ................................................................. 14
3.3.6 Probe connections 50, 52 and 54 ................................................................ 14
4 Installation .................................................................................. 16
4.1 Standards and information ........................................................................ 16
4.2 Electrical connection ................................................................................. 16
4.3 Wiring diagrams ......................................................................................... 17
5 Settings ....................................................................................... 18
5.1 Unlocking the safety temperature limiter (STB) ...................................... 18
5.2 Limit value setting ...................................................................................... 19
5.3 Self-monitoring of the STB and STW (STB) ............................................. 19
5.4 Use of the STW (STB) as STB .................................................................... 19
6 Device Description .................................................................... 20
6.1 Technical data ............................................................................................. 20

Inhalt
7 Declaration of conformity ......................................................... 24
8 China RoHS ................................................................................ 30

5
1 Introduction
1.1 Typographical conventions
1.1.1 Warning signs
1.1.2 Indicative signs
abc1Footnote
Footnotes are comments that refer to specific parts of the text. Footnotes
consist of two parts:
A marker in the text and the foot note text itself.
The markers in the text are arranged as continuous superscript numbers.
The footnote text is located at the end of the page, in a typeface 2 degrees
smaller than the main text, and is preceded by a superscript number.
✱Handling instructions
This symbol indicates that an action to be performed is described.
The individual steps are indicated by asterisks, for example:
✱Opening the case
VDanger
This symbol is used when there may be danger to personnel if the instruc-
tions are ignored or not followed correctly!
ACaution
This symbol is used where there may be damage to equipment if the instruc-
tions are disregarded or not followed accurately!
HNote
This symbol is used to draw your special attention to a remark.
vReference
This symbol refers to additional information in other chapters or sections.

1 Introduction
6
1.2 Application
Thermostats are used to control and monitor thermal processes.
Panel-mounting thermostats operate according to the fluid or gas expansion
principle. The electrical switching element is a micro switch.
The devices of the EM type series are available as safety -temperature monitors
STW and safety temperature limiters STB.
In the event of a malfunction, the STB switches the monitored machine line to
an operational safe status.
Versions as per: DIN EN 14597
STW (STB) Safety temperature monitor
STB Safety temperature limiter
Design test as per:
-DINEN 14597
- PED-directive 2014/68/EU
ou will find the Declarations of Conformity at: www.jumo.en
-Products
-Temperature
- Monitor/Limiter
- Electromechanical
- Panel-mounting thermostats 60.2026
- Documentation
- Declaration of Conformity / White Paper
or ask for them to be sent.
1.3 Identification
Depending on the device version:
(for detailed information, see type plate imprint)
ABending/kinking or cutting the probe line of the panel-mounting thermostats of
the EM type series will lead to a permanent device failure!
PEDPressure
Equipment
Directive

7
1 Introduction
1.4 Safety information
Physical and toxic features of the expansion means, which could emerge in
the event of a measuring system break:
1There is currently no statement by the health authority concerning hazards to
health in the event of short-term exposure and low concentration, e.g. in the
event of a measuring system break.
HFilling fluid can emerge in the event of a measuring system break. A hazard to
health is excluded as per the present information.
Control range
with
scale limit value
°C
Hazardous
reaction
Fire and
explosion hazard hazardous
to waters
Information about toxicology
Ignition
temperature
°C
Explosion
limit
Vol.%
irritant hazardous to
health toxic
< +200 no +355 0.6 - 8 Yes Yes 1no
ⱖ+200 ≤+350 no +490 - - Yes Yes 1no
>+350 ≤+500 no no no no no no no

8
2 Identifying the device
2.1 Type plate (example)
( 1 ) Type
( 2 ) Type code
( 3 ) Control- and limit value range / ambient temperature at which this
thermostat was calibrated (option)
( 4 ) Contact rating
( 5 ) Permissible ambient temperature
( 6 ) Serial number
( 7 ) Week of manufacture
( 8 ) Year of manufacture
2.2 Type designation
Type
designation
( 5 )
( 3 ) ( 7 )
( 8 )
( 4 )
( 2 )
( 1 )
( 6 )
EM - .. - .. - .. / .. Panel-mounting thermostat with single-pole
micro switch, connection "10" as standard
(plain cylindrical probe)
- 20 - E Safety temperature monitor STW (STB) with
change-over contact, limit value adjustable
- 30 - E Safety temperature monitor STW (STB) with
change-over contact, limit value permanently
factory-set
- 80 Safety temperature limiter STB with N/C con-
tact and restart lock, limit value permanently
factory-set
/ 707 Temperature compensation on the switching
head
/ 702 Snap switch contacts, gold plated
/ 574 Micro switch with N/C contact,
restart lock and additional signal contact (STB
only)

9
3 Installation
3.1 Dimensions
EM-80
with central
fastening
(as standard)
EM-20-E
EM-30-E
EM-80
with
fastening bridge
704, 705, 706
2
1
46 12
15.5
36.5
L
16
6
21
26
29
52
Ød
Ø1.5
13
10
2
1
6
G
21
16
21
36.5
1.5
L
46
52
2.5
29
Ø
d
Ø
B
38

3 Installation
10
3.2 Fastening the panel-mounting thermostat
Operating posi-
tion any
3.2.1 Fasting the switching head
Type EM-80
with central
fastening
Central fastening
( 1 ) Cap nut M10 x 1 (width
across flats 10)
( 2 ) Fastening nut M10 x 1
(width across flats 13)
( 3 ) Panel
( 4 ) Restart knob
Type EM-20-E,
EM-30-E,
EM-80
with
fastening bridge
With two M3 screws
(M4, for extra code 704)
on the chassis:
(1)Screw
(2)Panel
Type Dimension
(mm)
XY
EM-80 16 6
( 1 ) ( 2 ) ( 3 ) ( 4 )
Type Dimension
(mm)
XY
EM-20-E,
EM-30-E - - - -
EM-80 15 6
Extra code
(all types)
Dimension
(mm)
BG
706 (as standard) 3.5 22
704 4.5 28
705 3.5 33
( 1 )
( 1 ) ( 2 )

11
3 Installation
3.3 Capillary / temperature probe / sheath
3.3.1 General information
( B ) Temperature probe
( C ) Immersion tube
ABending/kinking or cutting the capillary of the panel-mounting thermostats will
lead to a permanent device failure!
The minimum admissible bending radius of the capillary is 5 mm.
The temperature probe must be installed in JUMO sheaths, otherwise, the
approval of the panel-mounting thermostats will become null and void.
Ensure that the temperature probe is completely submerged in the medium to
be measured. Ensure that the temperature probe or the sheath does not make
contact with the container or pipe walls.
Only use the devices in combination with the factory-supplied sheaths (d = 8
mm or d = 10 mm) to ensure the general response accuracy.
The d = 10 mm sheaths must only be used for d = 8 mm probes.
One sheath (15 x 0.75 mm) can be used for 2 or 3 cylindrical probes with a
diameter of d = 6 mm.
When using a sheath for 2 probes, fit the factory-supplied contact pressure
spring into the sheath.
For the operating medium air, select the connection type "10“ (without sheath).
For sheaths 22, 41, 42 and 45 made of material St35.8 I, the admissible ser-
vice life is limited to 200,000 operating hours at operating temperatures
exceeding +420 °C. Adhere to the TRD 508 for applications
in this range.
(B)
(C)

3 Installation
12
3.3.2 Approved process connections
Temperature
probe 10
Screw-
connections 50, 52, 54, 60, 65
Sheaths 20, 21, 22, 23, 24, 40, 41, 42
3.3.3 Sheath made of steel 22, 23, 32, 41, 42 and 45
Material
Capacity
max. admissible
operating
temperature
Hrefer to data sheet 606710 !
Tube Screw-in nipples Welding nipples
St 35.8 I Steel 1.0038 Steel 1.5415
Temperature Pipe diameter
8 x 0.75 mm or
conical
10 x 0.75 mm 15 x 0.75 mm
Maximum admissible pressure
100 °C 89 bar 72 bar 48 bar
150 °C 83 bar 67 bar 45 bar
200 °C 78 bar 63 bar 42 bar
300 °C 59 bar 47 bar 32 bar
350 °C 50 bar 40 bar 27 bar
Tube Nipple max. admissible operating temperature*
static load without load
St 35.8 I Screw-in nipples +300 °C +530 °C
Welding nipples +450 °C
*observe the max. admissible probe temperature of the respective thermostat version.
For operating temperatures > +420 °C: observe the operating life of 200,000 h at a static
load TRD508. Sheath "21" (UO) and "31" (UZO): Use only in pressureless medium.

13
3 Installation
permissible
flow
rates
Permissible flow rate [m/s] at maximum admissible pressure load and different
immersion tube length "S“
Permissible flow rate [m/s] at maximum admissible pressure load and different
immersion tube temperature.
Material: St35.8 I
Temperature: +200 °C
Heat transfer oil: Air ( 1 )
water, oil ( 2 )
Pipe diameter Ø:
08mm
10 mm
. . . . . . . . . . . . . . 15 mm
( 1 ) Air
( 2 ) Water, oil
Immersion tube length [mm]
Material: St35.8 I
Immersion tube length "s":
200 mm
Heat transfer oil: Air ( 1 )
water, oil ( 2 )
Pipe diameter Ø:
08mm
10 mm
. . . . . . . . . . . . . . 15 mm
( 1 ) Air
( 2 ) Water, oil
Temperature [°C]

3 Installation
14
3.3.4 Sheath made of stainless steel 20, 22, 40 and 41
Capacity
3.3.5 Sheath made of brass 20 and 40
Capacity
3.3.6 Probe connections 50, 52 and 54
(probe making directly contact with the medium)
Material of pipe and nipple: Stainless steel (1.4571)
Temperature
Pipe diameter Ø
8 x 0.75 mm
or conical
10 x 0.75 mm 15 x 0.75 mm
Maximum admissible pressure
100°C 92bar 74bar 50bar
150°C 88bar 71bar 48bar
200°C 83bar 67bar 45bar
300°C 72bar 58bar 39bar
400°C 67bar 54bar 36bar
Material of pipe and nipple: CuZn, nickel plated
Temperature
Pipe diameter Ø
8 x 0.75 mm 10 x 0.75 mm 15 x 0.75 mm
Maximum admissible pressure
100°C 50bar 40bar 27bar
150°C 48bar 39bar 26bar
Material of nipple CuZn Steel (1.0038) Stainless steel (1.4571)
Temperature °C 200 300 400
Probe material Ø mm Device function
STB, STW (STB)
Cu-DHP
St35 1.4571
4
2 bar
5
6
7
8
9
10

15
3 Installation
ADesign 10, 15, 21, 60, 65:
only use in pressureless medium.
HEnsure that the temperature probe (2) is completely submerged in the medium
because otherwise, greater switching point deviations will occur.
For connection types 20, 21 and 22, the temperature probe is fixed in the
sheath with the clamping piece ( 1 ).
(1)
(2)

16
4 Installation
4.1 Standards and information
4.2 Electrical connection
■Terminals and connections are suitable for internal wires
■The connection is suitable for stationary line
■Line insertion without strain relief
■The device corresponds to protection class I.
Capillary tube without protective earth function!
■Only allow electricians to carry out the electrical connection.
■The choice of cable, the installation and the electrical connection of the
device must conform to the requirements of VDE 0100 "Regulations on the
Installation of Power Circuits with Nominal Voltages below 1000 V" and/or
the appropriate local regulations.
■If contact with live parts is possible while working on the device, it must be
completely isolated from the supply.
■Earth the device at the PE terminal to the protective earth conductor.
Ensure that this line has at least a cross section identical to that of the sup-
ply lines. Earth/ground cables must be routed in a star configuration to a
common earthing point that is connected to the protective earth of the sup-
ply installation. Do not loop earth cables, i.e. do not run them from one
device to another.
■In addition to a faulty installation, also incorrectly set values on the thermo-
stat could impair the orderly function of the following process or lead to
other damage. Restrict the setting to expert personnel. Please adhere to
the safety regulations for this case.
For the probe and the capillary line, the user is
responsible for the required protection against electrical shock.

17
4 Installation
Plug-in connec-
tor
(as standard)
( 1 ) = Tab connector DIN 46 244-A 6.3 x 0.8
Screw-
connection
(extra code 699)
( 1 ) Plug-in sleeve 6.3 with connection screw suitable for wires up to 2.5
mm2; fitting type "699", without auxiliary means
( 2 ) Terminal strip
4.3 Wiring diagrams
( 1 )
2
1
EM-20-E
EM-30-E
EM-80 EM-80/574

18
5 Settings
5.1 Unlocking the safety temperature limiter (STB)
EM-80,
with fastening
bridge
704, 705, 706
Once the set limit value is gone below (dangerous temperature) by approx.
10% of the scale range, the micro switch can be unlocked.
✱Actuate the restart knob using a small screwdriver.
EM-80
with central fas-
tening as stan-
dard
✱Unscrew the cap
✱Press the restart knob
✱Screw on the cap again

19
5 Settings
5.2 Limit value setting
EM-20-E ( 1 ) Set point value setter
( 2 ) Scale subdivision
( 3 ) Set point value indicator
✱Adjust the set point value setter via the inter-
nal scale using a screwdriver
EM-30-E
EM-80 The limit value is permanently factory set and sealed. Readjustment is not
admissible.
5.3 Self-monitoring of the STB and STW (STB)
5.4 Use of the STW (STB) as STB
°C
(1)
(2)
(3)
HIf the measuring system is destroyed, i.e. if the expansion fluid emerges, the
pressure in the diaphragm drops and permanently opens the current circuit.
Unlocking is no longer possible.
If the probe has cooled down to a temperature below approx. -20 °C, the cur-
rent circuit is also opened, however, automatically closes again, when the tem-
perature rises above -10 °C.
VThe restart lock required as per DIN EN 14597 must be ensured by the follow-
ing switching diagram. This switching diagram must comply with VDE 0116.

20
6 Device Description
6.1 Technical data
Permissible
ambient tem-
perature
Permissible
probe
temperature
max.: Scale limit value / limit value +15%,
(with scale limit value between +90 °C and 120 °C = min. 25 K
min. -35 °C
Permissible
storage
temperature
max. +50 °C, min. -50 °C
Case Sheet steel, galvanized
Switching ele-
ment
Capillary Switch head
with scale limit
value /
limit value
STW (STB)
STB
STW (STB)
STB
extra code
707
STW (STB)
STB
STW (STB)
STB
extra code
707
max. see nameplate
min. -20 °C
-40 °C
+18 °C 0 °C
< 200 °C
-20 °C
≥ 200 °C ≤ 350 °C
-40 °C > 350 °C ≤ 500 °C
Type Description
1 1-pin snap switch
EM-20-E, EM-30-E with change-over contact
EM- 80 with N/C contact
EM- 80/574 as N/C contact with additional signal contact