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Safety Manual
The safety instrument series JUMO heatTHERM(-AT), (-DR) in accordance with data sheets 602031 and
603070 monitors processes in plants to determine whether a measured value is overrange or underrange for
a setlimit value.
The JUMO heatTHERM(-AT), (-DR) 602031 or 603070 has been type-tested by TÜV Süd Industrie Service
GmbH in accordance with DIN EN 14597 and the B10d value has been certified according to DIN EN ISO
13849-1.
This certification (see CONFIRMATION) applies to all types and features listed below:
Mode of operation:
Operating medium:
The B
value is performed using a switching capacity test at 16A, 230V, resistive load and evaluated by
10d
TÜV Süd Industrie Service GmbH based on DIN EN ISO 13849-1 (see CONFIRMATION) and confirmed with
the following values.
The test of the B
value was performed at a switching frequency of 240 cycles per hour (4 cycles per
10d
minute) and meets the requirements of DIN EN 14597 for temperature controllers at maximum load.
The entry in the Declaration of Conformity < 1 cycle per hour takes into account practical experience and the
classification of the MTTF
With an average operating time of 365 days a year and 24 hours a day and a B
resulting MTTF
value depending on the switching frequency is:
d
1 per hour:
240 per hour (4 per minute):
Using the B
value to calculate the MTTF
10d
B
10d
MTTF
d
0.1 n
op
B
= average number of cycles until 10 % of test objects
10d
have failed resulting in danger.
MTTF
= average time until a failure resulting in danger
d
= average number of activations annually
n
op
d
= average operating time in days per year
op
h
= average operating time in hours per day
op
T
= average operating time until 10 % dangerous failures
10d
PL
= Performance Level
STW(STB):
2B, 2K, 2L, 2N, 2P
STB:
2B, 2F, 2H, 2K, 2L, 2N, 2P, 2V
Water, air, oil
B
= 250,000
10d
< 1 cycle per hour
value as high as defined in DIN EN 13849-1 for calculating PL.
d
285 years
1.2 years
d
d
h
op
n
op
value in accordance with DIN EN ISO 13849-1:
s
3600
op
h
t
cycle
value of 250,000, the
10d
B
10d
T
=
10d
n
op
[cycles]
[years]
[cycles/year]
[days/year]
[hours/day]
[years]
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