safety temperature limiter | Safety-TL4896
594,00 EUR
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Art.Nr.: Safety-TL4896Produktbeschreibung
according to DIN EN 14597, SIL 2
general information:
The STL4896 safety temperature limiter is used wherever thermal processes have to be monitored and the system has to be transferred into a safe operational state in case of fault. If the permissible temperature limit value is reached or if a fault occurs within the permissible temperature range on the monitoring equipment (sensor break, sensor short-circuit, failure of a component part in the device, software error, failure or inadmissible value of the supply voltage etc.), the STL4896 switches off immediately.
The alarm contact is activated, the LED ALARM on the front panel and the background illumination of the display light up, and the error cause is indicated as plain text on the display. In addition, there is a 24 V DC signal present on the terminals 16-17 for an external alarm signal. Alternatively, the device can be reset using an external contact. In
addition, the STL4896 has a programmable analog output with up- or downscaling function, as well as a precontact.
- useable as temperature limiter/control and exhaust gas temperature limiter
- certified according to DIN EN 61508 SIL 2
- inputs Pt100 or double-thermocouple
- temperature limit value & switching hysteresis programmable
- basic accuracy <0.5 % ± 2 digit
- reaction time ≤0.5 s
- 1 relay for safety-relevant temperature limit, positively driven
- 1 relay for pre-alarm
- analog output 0/4 mA to 20 mA; 0/2 V to 10V
- memory function for error message
- operator lock (password protection)
- contact input for external reset
- 24 V DC signal for external alarm message
specifications:
| auxiliary energy |
|
| auxiliary voltage: | 230 V AC ±10 % 115 V AC ±10 % 24 V DC ±15 % |
| power consumption: | <4 VA |
| CE-conformity: | EN 61326-1: 2013 EN 61326-2-2: 2013 |
| ambient conditions | |
| operating temperature: | -10°C to +55°C |
| transport- and storage temperature: | -30°C to +60°C |
| relative humidity: | <95 % |
| condensation: | not permitted |
| vibrations: | operation only in vibration less environment! |
| approvals | |
| EN 14597:2012: | temperature control devices and temperature limiters for heat-generating systems |
| EN 61508:2011 SIL2: | functional security of safety-related electrical/electronic/programmable electronic systems |
| input | |
| Pt100: | in the range -100.0°C to +600.0°C, 3-wire, max. line resistance 4 Ω each line, sensor current <1 mA (no self heating) |
| thermocouple: | type J: Fe-CuNi in the range -100.0°C to +800.0°C type K: NiCr-Ni in the range -150°C to +1,200°C type N: NiCrSi-NiSi in the range -150°C to +1,200 °C type S: Pt10Rh-Pt in the range 0°C to +1,600°C cold junktion compensation integrated |
| basic accuracy: | <0.5 %, ±2 digit |
| temperature coefficient: | 0.01 %/K |
| display: | grafic LCD display with 128 x 64 pixel, with white background illumination |
| outputs | |
| main relays: | changeover contact <250 V AC <200 VA <2 A cos Phi ≥0,7 <250 VDC <80 W <2 A, internally fused with microfuse 2 A slow-blow |
| pre-alarm relays: | changeover contact <250 V AC <500 VA <2 A ohmic load; <30 VDC <60 W <2 A |
| analog output: | 0/4 mA to 20 mA burden ≤500 Ω; 0/2 V to 10 V burden >500 Ω, galvanically isolated, output automatically changing (depending on burden) |
| accuracy (analog output): | 0.4 %; TK: 0.01 %/K |
| housing: | polyamide (PA) 6.6 , UL94V-0 |
| weight: | approx. 450 g |
| connection: | spring terminals 0.2 mm² to 2.5 mm² (AWG 24 .. 12) |
| ingress protection: | front IP65, DIN EN 60529, BGV A3 |
For further information p.r.t. data sheet:
instruction manual as .pdf:
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