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Page 1/19
V3.00/EN/00542385
JUMO safetyM STB/STW Ex
Safety Temperature Limiter/Monitor
According to DIN EN 14597 and ATEX
Approval
Brief description
The compact and user configurable JUMO safetyM STB/STW Ex can now also enable early and
reliable detection of risks in Ex-areas which could potentially result in personal injuries, environ-
mental damage, or destruction of the production plant and production materials.
The devices are marked as follows:
The primary task of safety temperature limiters is to reliably monitor thermal processes and to
switch plants to a safe operating status in the event of malfunctions. Along with the existing ap-
provals according to DIN 14597, SIL 3, PL e (Performance Level), GL, the device also has ap-
proval according to ATEX and can therefore also be used for measurements in Ex areas.
However, the device itself has to be installed outside the Ex area.
The inputs are intrinsically safe [Ex ia] so that relevant probes can be connected directly.
Barriers are no longer required. The device is also certified according to DIN EN 50495 and DIN
EN 13463-6 as an ignition source monitoring device (iPL 2) as specified in the ATEX directive
and can be used to monitor potentially explosive atmospheres containing gas or dust. The de-
vice concept also meets the stringent requirements of DIN EN 61508 and DIN EN 13849. The
1oo2D structure ensures reliable detection of faults, meaning that the device concept can also
be used for applications subject to the new Machinery Directive 2006/42/EC.
Along with the keypad, the clear and well-structured backlight display with plain text provides
quick and straightforward configuration directly on the device. The clear menu structure ensures
easy operation, which in turn shortens startup times. All safety relevant process values are dis-
played and the most important functions are shown by simple pictograms.
1-sensor variant
2-sensor variant
II (1) (2) (3) G (b1) [Ex ia Ga] [e pz] IIC II (1) (1) (2) G (b2) [Ex ia Ga] [e py] IIC
II (1) (2) (3) D (b1) [Ex ia Da] [p Dc] IIIC II (1) (1) (2) D (b2) [Ex ia Da] [p Db] IIIC
Block diagram
1 binary input
for floating contact
1 analog output
standard signal
Voltage supply
AC 110 to 240 V +10/-15 %, 48 to 63 Hz
AC/DC 20 to 30 V, 48 to 63 Hz
USB Interface
for setup program
1 relay Output Alarm
SPDT (changeover contact)
with fuse cut-out
1 relay output pre-alarm KV)(
SPDT (changeover contact)
LCD display
with white background lighting
4 keys
for operation and
acknowledgement of alarms
Mesured Value
Universal analog Input 1
Universal analog Input 2
701155
STB/STW Ex
mit 1oo2D -Struktur
Data Sheet 701155
Type
701155/ ...044/059
Special features
k 1oo2D structure for a high degree of pro-
cess reliability
k LCD display with backlight and plain text
display for more simplified operation
k Setup program for configuration and
archiving via USB interface
k Digital input filter with adjustable
filter time constant
k Pre-alarm absolute or adjustable as a mar-
gin from the limit value
k Wide voltage supply range from AC 110
to240 V +10 % / -15 % or AC/DC 20
to 30 V
k Can be configured as safety temperature
limiter (STB) or safety temperature monitor
(STW)
k 12 linearizations can be set
k Internal and external unlocking possible
k Approvals for DIN EN 14597, SIL, PL e
(Performance Level e), DIN, ATEX, PED,
and optionally DNVGL
Approvals/approval marks (see "Technical data")
PED
Pressure
Equipment
Directive
70115500T10Z000K000
Type
701155/ ...045/059