L Series L91 FM Approved High Limit Controls

Brand: Future Design Controls

Future Design’s L91 is a 1/16DIN control designed to provide limit protection in process applications.

Up to three discreet setpoints, two outputs, fast scan rates and user friendly prompts make it the right choice for safety protection.

The L91 offers a full range of universal inputs.

Power supply selections of 90-264 VAC (std) or 11-26 VAC/VDC allows the L91 to be used virtually anywhere.

Output selections include Relay, SSR Drive or Triac. Optional features such as a second latching relay, DC power supply, remote reset or communications offer maximum flexibility for demanding applications.

The L91 display can be be configured for PV, HSP, LSP or Safe, offering the simplicity required by operations personnel.
Features
  • 3-year Warranty
  • Universal Temperature Input / 18 Bit A-D
  • Configurable Display Logic - SAFE
  • Remote Reset Digital Event Input
  • Meets NFPA 86.8.16.6 to display 
  •  temperature and setpoint
  • Simple to Use & Configure
  • PC Configurable
  • Outputs: up to 2
  • Serial Communications

Specifications

Power

  • 90-264 Vac, 49-63 Hz, 10 VA
  • 11-26 Vac/ Vdc, 10 VA, 5 W

Input

  • Thermocouple: (T/C): Type J,K,T,E,B,R,S,N,L
  • RTD: PT 100 ohm RTD (DIN or JIS)
  • Linear: 4-20, 0-20 mA, 0-60 Mv, 0-1, 0-5, 1-5, 0-10 Vdc

Accuracy

  • Typically better than ± .25 % of Span

Mode Rejection

  • Common: 120 dB

Relay

  • Form C 2.0 Amp/240 Vac Resistive

SSR Drive

  • 5 Volt Vdc @ 30 Ma

Operating Temperature

  • -10° C to 50° C

Humidity

  • 0 % to 90 % Relative Humidity, Non-Condensing

Insulation

  • 20 Mohms Min. @ 500 Vdc

Shock Resistance

  • 200 m/s²

Vibration

  • 10-55 Hz, 10 m/s² for 2 hours

  • Oven - Furnaces - Kilns
  • Environmental Chambers
  • Sterilizers / Autoclaves
  • Food Service Equipment
  • Hot Plates / Melt Pots
  • Applications requiring a Limit Device
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