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Temperature switch with intuitive switch point setting

TK-250CLFR12-QKPKG / US

TK7460

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  • Simple switch point setting by means of two setting rings allowing optimum reading
  • Setting of the switch points without system temperature being applied
  • Two complementary switching outputs with adjustable hysteresis
  • Particularly good response dynamics and very short power-on delay time
  • Mechanical locking prevents inadvertent switch point manipulation
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Technische Details
Application
Measuring element 1 x Pt 1000; (to DIN EN 60751, class A)
Media liquids and gases
Medium temperature [°C] -40...145
Pressure rating [bar] 300
Electrical data
Operating voltage [V] 9.6...32 DC; ("supply class 2" to cULus)
Current consumption [mA] < 30
Protection class III
Reverse polarity protection yes
Power-on delay time [s] 0.5
Inputs / outputs
Number of inputs and outputs Number of digital outputs: 2
Outputs
Total number of outputs 2
Output signal switching signal
Electrical design PNP
Number of digital outputs 2
Output function normally open / normally closed
Max. voltage drop switching output DC [V] 2
Permanent current rating of switching output DC [mA] 500
Short-circuit protection yes
Type of short-circuit protection pulsed
Overload protection yes
Measuring/setting range
Measuring range
-25...140 °C -13...284 °F
Set point SP
-20...140 °C -4...284 °F
Accuracy / deviations
Temperature drift per 10 K [K] 0.1 **)
Repeatability [K] ± 0,1
Setting accuracy [K] ± 3
Response times
Dynamic response T05 / T09 [s] 1 / 3; (to DIN EN 60751)
Software / programming
Adjustment of the switch point setting rings
Operating conditions
Ambient temperature [°C] -40...80
Note on ambient temperature
at medium temperature: < 80 °C
-40...50 °C
at medium temperature: < 145 °C
Storage temperature [°C] -40...100
Protection IP 67
Tests / approvals
EMC
DIN EN 61000-4-2 ESD 4 kV CD / 8 kV AD
EN 61000-4-3 HF radiated 10 V/m
DIN EN 61000-4-4 Burst 2 kV
EN 61000-4-6 HF conducted 10 V
Shock resistance
DIN IEC 68-2-27 50 g (11 ms)
Vibration resistance
DIN EN 60068-2-6 20 g (10...2000 Hz)
MTTF [years] 643.1
UL approval
UL Approval no. K018
Mechanical data
Weight [g] 141
Materials stainless steel (1.4404 / 316L); PC; PBT; FKM
Materials (wetted parts) stainless steel (1.4404 / 316L); FKM
Tightening torque [Nm] 45
Process connection threaded connection G 1/2
Probe diameter [mm] 6
Installation length EL [mm] 250
Displays / operating elements
Display
switching status 2 x LED, yellow
Remarks
Remarks
**) in case of deviation from the reference condition 25 °C
The values for accuracy apply to flowing water.
Pack quantity 1 pcs.
Electrical connection
Connection Connector: 1 x M12; Contacts: gold-plated
ifm electronic gmbh • Friedrichstraße 1 • 45128 Essen — We reserve the right to make technical alterations without prior notice. — EN-GB — TK7460-00 — 24.08.2016 —