JUMO 902454/10, Руководство по эксплуатации, Страница: 9 / 24

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3 Technical data
3 Technical data
Temperature range
902454/10
0 to 120 °C
902454/11 0 to 120 °C
902464/10 0 to 120 °C
The maximum operating temperature of the thermowells must be observed.
Protection type IP65 (as delivered condition)
Temperature difference
Minimum
3 K
Maximum 120 K
Maximum pressure
902454/10
PS25 for a water flow velocity of 2 m/s
902454/11 PS25 for a water flow velocity of 2 m/s
902464/10 With thermowells basic type 902440/47, 902440/48 and 902440/49
PS40 for a water flow velocity of 2 m/s
Electrical connection 2-wire circuit, 4-wire circuit
Maximum measuring current The maximum measuring current is calculated using the maximum admissible
power loss of 5 mW.
Depending on the nominal values, this results in the following effective current
values:
Pt100: 1783 µA
Pt500: 797 µA
Pt1000: 564 µA
Response times
902454/10
t
0.5
= 5 s; t
0.63
= 7 s; t
0.9
= 12 s;
902454/11 t
0.5
= 5 s; t
0.63
= 7 s; t
0.9
= 12 s;
902464/10 without thermowell t
0.5
= 5 s; t
0.63
= 7 s; t
0.9
= 12 s;
902464/10 with thermowell
902440/47 t
0.5
= 10 s; t
0.63
= 14 s; t
0.9
= 27 s;
902464/10 with thermowell
902440/48 t
0.5
= 11 s; t
0.63
= 15 s; t
0.9
= 28 s;
902464/10 with thermowell
902440/49 t
0.5
= 12 s; t
0.63
= 16 s; t
0.9
= 32 s;
Minimum immersion depth 30 mm
Nominal value Pt100, Pt500, Pt1000 (see identification marking for temperature probes)
Tolerance Class B according to DIN EN 60751:2009 / IEC 60751:2008; restricted toler-
ances optional
When using two-wire technology, the display will be systematically higher due
to the line resistance (see maximum connection length according to
DIN EN 1434).