STL50-1-1R-5, Safety Temperature Limiter for PT100 Sensor, 24VDC

SKU: STL50-1-1R-5
Category: Limit Monitors
Manufacturers: Martens

Useful as temperature limiter/-guard and exhaust gas temperature limiter

Input for RTD Pt100 sensor

Auxiliary voltage: 24VDC

Alarm output: 1 relay SPDT

Programming via backlit LCD graphic display

Certified according to DIN EN 14597 SIL 2

727,09 €

incl. 19% VAT

Exp. shipping time: ca. 1-2 weeks
: 5 Workdays (DE - int. shipments may differ)

Description
Reviews

STL50-1-1R-5, Safety Temperature Limiter, PT100, Supply Voltage: 24VDC

For PT100 probes, certified to DIN EN 14597 (replaces DIN 3440), SIL 2.

Features

    For use as:
      STB:      Protection - temperature limiter
      ASTB:   Exhaust gas protection - temperature limiter
      STW:     Protection - temperature monitor
Certified according to EN 61508 SIL2
Input: Pt100, 3-wire circuit
Temperature limit value and switching hysteresis programmable
Basic accuracy: < 0.5% ± 2 digits
Reaction time: = 0.5 sec
Alarm output: 1 relay, CO; SPDT
Clear text programming via graphic display 128x64 pixel,
with white background lighting
Memory function for error report
Operation-lock feature (password protection)
Case for switchboard installation

General:

The STL50 safety temperature limiter is used where ever thermal processes must be monitored and the system must 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 open, sensor short-circuit, failure of a component part in the device, fault in the software, failure or inadmissible value of the Supply voltage etc.), the STL50 switches off without delay.

The alarm contact is activated, the LED ALARM on the front panel and the back-lighting 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 17-18 for an external alarm signal.

Brief description:

Programming: The device is programmed using the front-sided buttons, in connection with the graphics display.

Operating modes: The device can be used as:

STB: Maximum or minimum monitoring with lock

Reset following removal of the fault through actuation of the front side button

or externally connected pushbutton

ASTB: As before, however for the monitoring of the exhaust gas temperature

STW: Maximum or minimum monitoring without lock

Reset automatically on return into the permissible range

Switching hysteresis: Always acts in the direction of safe range.

Error log memory: The last fault is stored as plain text and can be called up in the working level and deleted.

Temperature probe:Attention: The device may be operated only with temperature probes which are certified according to DIN EN 14597.

Technical data:
Housing: DIN rail mounting TS35
Floor space: 50x100 mm² (BxH)
Mounting height: 110 mm
Input: RTD (Pt100) 3-wire connection: -100.0 to +600.0 °C
Output: relay, 1 x CO contacts
Supply voltage: 24 VDC ± 15 %

Please note: Sensors need to be ordered separately!

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