L42.png
Images are representations only.

L Series High Performance Process Limit Controllers

Brand: Future Design Controls
Request Information
Favorite

L22.png L62.png Group.png
The L22, L62 & L42 are FM approved limit controller that can be configured either as a high limit or as a low limit controller by the user.

These limit controllers are powered by an 11-26 or 90-250 VDC / VAC supply, incorporating a 2 Amp relay output as a standard. 

The second output can be used as an alarm. Both outputs can be selected as a 5VDC or 14VDC logic output to drive an external device. 

The limit controllers can be incorporated with two event inputs, up to 3 alarm outputs, RS-485 communication, retransmission voltage or current output optionally.

The limit controllers are fully programmable for linear current, linear voltage, Pt100 and thermocouple types J, K, T, E, B, R, S, N, L, U, P, C, and D. 

The input signal is digitized by using an 18-bit A to D converter. Its fast-sampling rate allows the limit controller to protect fast processes.
Features
  • LCD Display
  • High Accuracy 18 Bit A-D Conversion
  • and 15 Bit D-A Conversion
  • Fastest Sampling Rate of 200 msec
  • Universal Input
  • Up to 2 Event Inputs
  • Remote Reset
  • Remote Lock
  • RS-485 Communication
  • Lockout Protection
  • Bidirectional Menu Navigation
  • On-field Calibration
  • °C / °F Temperature Measurements
  • DIN Rail Mount Option
  • Configurable Display Logic -SAFE

View Details

Specifications

Brand

Power Supply

  • 90 to 250VA
  • 47 to63Hz
  • 20 to 28 VAC
  • 47-63Hz / 11 to 40 VDC

Power Consumption

  • L22: 8VA, 4W maximum
  • L62: 10VA, 5W maximum
  • L42: 12VA, 6W maximum

Over Voltage Category

  • II

Signal Input Type

  • Thermocouple (J, K, T, E, B, R, S, N, L, U, P, C, D)
  • RTD(Pt100(DIN)
  • Pt100(JIS)
  • Current(mA)
  • Voltage (V, mV)

Signal Input Resolution

  • 18 Bits

Signal Input Sampling Rate

  • 5 Times / Second
  • 200msec

Signal Input Maximum Rating

  • -2VDC minimum,
  • 12VDC maximum

Signal Input - Input Characteristics (Type: Range, Accuracy @ 25°C, Input Impedance)

  • J: -120°C to 1000°C ( -184°F to 1832°F), ±2°C, 2.2 MΩ
  • K: -200°C to 1370°C (-328°F to 2498°F), ±2°C, 2.2 MΩ
  • T: -250°C to 400°C ( -418°F to 752°F), ±2°C, 2.2 MΩ
  • E: -100°C to 900°C ( -148°F to 1652°F), ±2°C, 2.2 MΩ
  • B: 0°C to 1820°C (32°F to 3308°F), ±2°C (200°C to 1800°C), 2.2 MΩ
  • R: 0°C to 1767.8°C (32°F to 3214°F), ±2°C, 2.2 MΩ
  • S: 0°C to 1767.8°C (32°F to 3214°F), ±2°C, 2.2 MΩ
  • N: -250°C to 1300°C ( -418°F to 2372°F), ±2°C, 2.2 MΩ
  • L: -200°C to 900°C ( -328°F to 1652°F), ±2°C, 2.2 MΩ
  • U: -200°C to 600°C (-328°F to 1112°F), ±2°C, 2.2 MΩ
  • P: 0°C to 1395°C (32°F to 2543°F), ±2°C, 2.2 MΩ
  • C: 0°C to 2300°C (32°F to 4172°F), ±2°C, 2.2 MΩ
  • D: 0°C to 2300°C (32°F to 4172°F), ±2°C, 2.2 MΩ
  • Pt100(DIN): -210°C to 700°C ( -346°F to 1292°F), ±0.4°C, 1.3KΩ
  • Pt100(JIS): -200°C to 600°C ( -328°F to 1112°F), ±0.4°C, 1.3KΩ
  • mA: -3mA to 27mA, ±0.05%, 2.5Ω
  • VDC: -1.3VDC to 11.5VDC, ±0.05%, 1.5MΩ
  • mV: 0 to 50mV, ±0.05%, 2.2 MΩ

Signal Input Temperature Effect

  • 1.5μV /°C for all inputs except mA input
  • 3.0μV /°C for mA

Signal Input Sensor Lead Resistance Effect

  • Thermocouple: 0.2 μV / Ω; 3-wire RTD: 2.6°C /Ω of difference of resistance of two leads
  • 2-wire RTD: 2.6°C /Ω of sum of resistance of two leads

Signal Input Burn-out Current

  • 200 nA

Signal Input CMRR

  • 120 dB

Signal Input NMRR

  • 55 dB

Signal Input Sensor Break Detection

  • Sensor open for Thermocouple
  • RTD and mV inputs
  • Sensor short for RTD input
  • Below 1mA for 4-20mA input
  • Below 0.25VDC for 1 - 5VDC input
  • Not available for other inputs.

Signal Input Sensor Break Response Time

  • Within 4 seconds for Thermocouple,
  • RTD and mV inputs
  • 0.1 second for 4-20mA and 1 - 5VDC inputs

Digital Filter Function

  • First Order

Digital Filter Time Constant

  • 0,0.2, 0.5, 1, 2, 5, 10, 20, 30, 60 Seconds
  • Programmable

Number of Event Inputs

  • L22: 1
  • L62: 2
  • L42: 3

Event Input Logic Low

  • -10VDC minimum
  • 0.8VDC maximum

Event Input Logic High

  • 2VDC minimum
  • 10VDC maximum

Event Input Functions

  • Remote lock
  • Remote reset output1
  • HSP2
  • LSP2
  • HLS2
  • HSP3
  • LSP3
  • HLS3
  • Reset alarm1
  • Reset alarm2
  • Reset alarm3
  • Reset all alarms
  • Cancel latch
  • Reset reference data

Output 1 /Output 2 Limit Control Function

  • High Limit
  • Low Limit and High / Low Limit

Output 1 /Output 2 Type

  • Relay
  • Pulsed Voltage

Output 1 /Output 2 Relay Type

  • Form A

Output 1 /Output 2 Relay Rating

  • 2A
  • 240V AC
  • 200000 Life cycles for resistive load

Output 1 /Output 2 Pulsed Voltage

  • Source voltage 5VDC
  • Current limiting resistance 66Ω

Output 1 /Output 2 Temperature Effect

  • ±0.01% of Span/ °C

Alarm Relay Type

  • Form A

Alarm Maximum Rating

  • 2A
  • 240VAC
  • 200000 Life cycles for resistive load

Alarm Alarm Functions

  • Process High
  • Process Low

Alarm Alarm Mode

  • Latching
  • Normal
  • Latching reverse
  • Normal reverse

Data Communication Interface

  • RS-485

Data Communication Protocol

  • Modbus RTU (Slave mode)

Data Communication Address

  • 1 to 247

Data Communication Baud Rate

  • 2.8KBPS to 115.2KBPS

Data Communication Parity Bit

  • None
  • Even or Odd

Data Communication Stop Bit

  • 1 or 2 Bits

Data Communication Data Length

  • 7 or 8 Bits

Communication Buffer

  • 160 Bytes

Analog Retransmission Output Signal

  • 4-20mA
  • 0-20 mA
  • 0 - 10VDC

Analog Retransmission Resolution

  • 15 Bits

Analog Retransmission Accuracy

  • ±0.05% of Span ± 0.0025% / °C

Analog Retransmission Load Resistance

  • 0 to 500Ω for current output
  • 10KΩ minimum for voltage output

Analog Retransmission Output Regulation

  • 0.01% for full load change

Analog Retransmission Output Setting Time

  • 0.1Second (stable to 99.9%)

Analog Retransmission Isolation Breakdown

  • 1000VAC min

Analog Retransmission Integral Linearity Error

  • ±0.005% of span

Analog Retransmission Temperature Effect

  • ±0.0025% of span /°C

Analog Retransmission Saturation Low

  • 0mA or 0VDC

Analog Retransmission Saturation High

  • 22.2mA or 5.55V,11.1V min

Analog Retransmission Linear Output Ranges

  • 0-22.2mA (0-20mA/4-20mA)
  • -5.55VDC (0-5VDC, 1-5VDC)
  • -11.1VDC (0 - 10VDC)

User Interface Keypad

  • 4 Keys

User Interface Display Type

  • 4 Digit LCD display

User Interface Number of Display

  • 2

User Interface Upper Display Size

  • L22: 0.31” (8mm)
  • L62: 0.58” (15mm)
  • L42: 0.98” (25mm)

User Interface Lower Display Size

  • L22: 0.25” (6.5mm)
  • L62: 0.3” (7.8mm)
  • L42: 0.55” (14mm)

Programming Port Interface

  • Micro USB

Programming Port PC Communication Function

  • Firmware upgrade

Operating Temperature

  • -10°C to 50°C

Storage Temperature

  • -40°C to 60°C

Humidity

  • 0 to 90 % RH (Non-Condensing)

Altitude

  • 2000 Meters maximum

Pollution

  • Degree II

Insulation Resistance

  • 20MΩ minimum (@500V DC)

Dielectric Strength

  • 2000VAC
  • 50/60 Hz for 1 minute

Vibration Resistance

  • 10 to 55 Hz
  • 10m/s2 for 2 hours

Shock Resistance

  • 200 m/s2(20g)

Housing

  • Flame retardant polycarbonate

Mounting

  • L22: DIN-Rail
  • L62: Panel
  • L42: Panel

Size

  • L62: 1/16
  • L42: 1/4

Dimensions

  • L22: 22.5 x 96 x 83mm
  • L62: 48 x 48 x 59mm
  • L42: 96 x 96 x 59mm

Depth Behind Panel

  • L62: 50mm
  • L42: 50mm

Cut Out Dimensions

  • L62: 45 x 45mm
  • L42: 92 x 92mm

Weight

  • L22: 160 grams
  • L62: 160 grams
  • L42: 290 grams

Safety

  • FM Class 3545
  • UL/cUL 61010-1 Category QUYX/QUYX7
  • ROHS
  • REACH

Protective Class

  • IP50 for the front panel
  • IP20 for rear terminals and housing
  • All indoor use

EMC

  • EN61326

Documentation

Brochure

Product Literature

show more