20-ALM Loop Powered Trip Amplifier

  • 4-20mA input, alarm relay output
  • High or Low alarm user configuration
  • LED indication of alarm
  • Unique Low cost solution

The 20-ALM can be wired into any 4-20mA current loop and provides a high or low relay alarm output. The setpoint can be adjusted using the setpoint potentiometer and monitored by measuring the voltage on the front panel terminals.

Typically the 20-ALM is used to provide an alarm contact into a PLC from a 4-20mA loop or to switch on an indicator lamp showing an alarm condition has been met. the 20-ALMis a unique low-cost way of getting an alarm contact from an existing 4-20mA loop.

Two relay options can be specified, one switching higher loads at low voltages and the other smaller loads at high voltages.Both AC and DC loads can be switched.

The 20-ALM is housed in a compact DIN rail mounting enclosure.

4002ALMTC-FC Dual Trip Amplifier

  • Range of thermocouple or mV Inputs
  • Configurable Trip Action
  • Optional Isolated Re-transmission of input signal
  • Optional LED display of input & Setpoints
  • 115/230Vac Power supply version available

The 4002ALMTC is a Dual setpoint Analogue Trip Amplifier which can take thermocouple or mV inputs and provides two alarm relay outputs.

Numerous additional options are available on the 4002ALMTC, including an Isolated Re-transmission of the input signal, LED display of input and setpoints and a 24Vdc or 115/230Vac power supply.

Being a purely analogue unit the 4002ALMTC is particularly suitable for SIL 2 level safety applications.

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4002ALMHL-FC Dual Trip Amplifier

  • Range of mA or Voltage Inputs
  • Configurable Trip Action
  • Optional Isolated Re-transmission of input signal
  • Optional LED display of input & Setpoints
  • 24 Vdc or 115/230Vac Power supply version available

The 4002ALMHL is a Dual setpoint Analogue Trip Amplifier which can take mA or voltage input and provides two alarm relay outputs.

Numerous additional options are available on the 4002ALMHL, including an Isolated Re-transmission of the input signal, LED display of input and setpoints and a 24Vdc or 115/230Vac power supply.

Being a purely analogue unit the 4002ALMHL is particularly suitable forSIL 2 level safety applications.

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2002ALMTC Dual Trip Amplifier

  • Wide range of thermocouple or mV inputs
  • Configurable Trip Action- Failsafe modes
  • Isolated Input Stage
  • Setpoints available as 0-10V on setpoint terminals
  • 24Vdc or 24Vac supply as standard

The 2002ALMTC accepts a wide range of thermocouple or mV inputs, including J, K R,S,T and E.

The unit has two relay alarm outputs which can be configured as high or low alarms and both relays have change-over contacts which are mains rated.

Each relay can be configured as fail-safe or non-fail-safe and each LEDindiactor can be ON when the units is in alarm or OFF when an alarm state is reached. It is also possible to use the device as a latching trip amplifier with a single alarm output.

Cold junction compensation is standard and both High and Low burn-out options are user selectable. The 2002LMTC is a purely analogueTrip Amplifier making the unit suitable for SIL2 type applications.

The unit is powered from a range of voltages including 12Vdc 24Vdcand 24Vac.

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2002ALMRTD Dual Trip Amplifier

  • Wide range of RTD inputs including PT100 sensors
  • Configurable Trip Action- Failsafe modes
  • Isolated Input Stage
  • Setpoints available as 0-10V on setpoint terminals
  • 24Vdc or 24Vac supply as standard

The 2002ALMRTD accepts a wide range of RTD inputs including 2 or 3 wire PT100 covering all the standard temperature ranges.

The unit has two relay alarm outputs which can be configured as high or low alarms and both relays have change-over contacts which are mains rated.

Each relay can be configured as fail-safe or non-fail-safe and each LEDindiactor can be ON when the units is in alarm or OFF when an alarm state is reached. It is also possible to use the device as a latching trip amplifier with a single alarm output.

Both High and Low burn-out options are user selectable. The2002LMRTD is a purely analogue Trip Amplifier making the unit suitable for SIL2 type applications.

The unit is powered from a range of voltages including 12Vdc 24Vdcand 24Vac.

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2002ALMHL Dual Trip Amplifier

  • Wide range of mA or voltage inputs
  • Configurable Trip Action- failsafe modes
  • Isolated Input Stage
  • Setpoints available as 0-10V on setpoint terminals
  • 24 Vdc or 24Vac supply as standard

The 2002ALMHL accepts a wide range of mA and voltage inputs, including 4-20mA0-20mA0-10V and 1-5V.

the unit has two relay alarm outputs which can be configured as high or low alarms and both relays have change-over contacts which are mains rated.

Each relay can be configured as fail-safe or non-fail-safe and each LEDindiactor can be ON when the units is in alarm or OFF when an alarm state is reached. It is also possible to use the device as a latching trip amplifier with a single alarm output.

The unit is powered from a range of voltages including 12Vdc 24Vdcand 24Vac.

View Product Data Sheet

4002ALM-6 Universal Trip Amplifier

  • mA, Volts, Thermocouple & RTD inputs
  • Configurable Trip Actions and Failsafe Modes
  • Display of input,setpoints and configuration
  • Features such as latching, delay on as standard
  • Isolated Transmitter supply and retransmitted output

The 4002ALM-6 has been designed to perform virtually any Trip Amplifier function ‘out of the box’.

With input types including mA, volts, thermocouples and RTD’s and others and a re-transmitted 4-20mA or voltage output as standard, the 4002ALM-6 has every feature required built-in as standard.

Functions such as latching, delay on, delay off and power on delays can all be called up from the built-in menus, no PC software or programming is required.

The power supply can be anything from 16 to 30Vdc.

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