Trip Amplifiers

 

 

The family of Trip Amplifiers available range from a single setpoint loop powered device to a powered dual setpoint unit with isolated re-transmission and an LED display of inputs and setpoints.

 

 

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20-ALM Loop Powered Trip Amplifier

 
  • High or low alarm option
  • Low voltage drop
  • Setpoints available on front panel as 0.4 to 2V Signal (4-20mA)
  • LED indication of Alarm
  • Unique Low cost solution
The 20-ALM is a 4-20mA direct current loop powered trip amplifier. The device derives its power from the input signal and therefore requires no external power supply.

The output of the 20-ALM is a single pole, normally open, solid state relay which can be configured to close either above or below the adjustable setpoint. The switched output can be connected to any potential within 1kV of the transmitter supply, while transients of 2.5kV can be withstood.

The relay is designed to switch AC or DC.
20-alm loop-powered trip amplifier

 

 

2002-alm-hl dual trip amplifier

2002ALM-HL Dual Trip Amplifier

 
  • Wide range of user configurable inputs
  • Configurable trip action and fail-safe mode using internal switches
  • Isolated input stage
  • Setpoints available as 0-10V (0-100%) on terminals 9 & 12
  • D.C. or A.C. power supply options (see 4002-ALM for Mains Version)

The new 2002-HL trip amplifier can accept a wide range of user configurable inputs including 4-20mA, 0-20mA, 0-5V and 0-10V. The unit can have up to two relay outputs and each can operate as a high or a low trip; alternatively latching operation using both trip points can be configured.
 

 

 

 

2002ALM-TC/RTD Dual Trip Amplifier

 
  • Wide range of user configurable inputs
  • Configurable trip action and fail-safe mode
  • Isolated input stage
  • Setpoints available on front panel
  • D.C. or A.C. power supply options (see 4002-ALM for Mains Version)

The 2002-ALM family of trip-amplifiers can accept a wide range of inputs including Thermocouple and RTD. The unit can have up to two relay outputs and each can operate as a high or a low trip.

The input stage is fully isolated as an option and the input type can be user-configured.
2002-alm-tc-rtd dual trip amplifier

 

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4002-alm-6 24vdc trip amplifier

The 4002ALM-6 24Vdc Dual Trip Amplifier

 
  • Wide range of user configurable inputs
  • Configurable trip action and fail-safe modes
  • Isolated Re-transmission
  • Isolated input stage and isolated transmitter supply
  • LED display of input, setpoints and configuration

The 4002ALM-6  trip amplifier can accept a wide range of inputs including 4-20mA, thermocouple, RTD and voltage.

The unit performs the same basic functionality as the 2002ALM family above. but can also have options such as time delays on trips set using the front panel. In addition the 4002ALM-6 can re-transmit the input signal as a 4-20mA or 0-10V signal, and can display the input and the two setpoint values on the front panel LED display.

Various trip latching options are available, for example one relay can be latched when a high level is reached and un-latched when the signal reaches the lower setpoint. All of this functionality is in a small DIN rail mount enclosure only 22.5mm wide!

 

 

4002-ALM Dual Trip Amplifier

 
  • Wide range of user configurable inputs
  • Configurable trip action and fail-safe modes
  • Isolated Re-transmission
  • Isolated input stage and isolated transmitter supply
  • LED display of input, setpoints and configuration

Similar to 4002 ALM-6 above but for mains powered applications.
4002 alm dual trip amplifier

 

 

 

chameleon

Chameleon Programmable Function Converter

 
  • Completely user configurable in spreadsheet format
  • 3 analogue in, 2 analogue out, fully configurable mA or Voltage
  • 2 digital in, 2 digital out
  • Extensive maths & logic capability
  • Full 3-port isolation
  • RS232 / 485 comms including MODBUS protocol


The CHAMELEON product range can perform intelligent trip functions including delay before trip, trip for a minimum time interval, trip on sensor fail, trip on internal system failure, trip only if a specified sequence of events occurred, etc. If you have a complex trip function contact us first to see if we can help.

 

 

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Datasheet

6 Downloads

2002HL dual trip amplifier (108 KB)
2002TCRTD dual trip amplifier (70 KB)
4002Ac dual trip amplifier (59 KB)
Chameleon programmable function converter (87 KB)
4002Alm 24vdc trip amplifier (117 KB)
20Alm loop powered trip amplifier (54 KB)

See also

Signal Conditioners

Signal converters can be used to convert multiple 4-20ma analogue input signals into a single or multiple isolated outputs.
signal converters sub

Industrial Ethernet

Input/Output Modules providing High Speed & Accurate way of routing analogue and digital signals (mA,mV,V,Contact, RS232 & RS485) through Ethernet networks and onto the internet.

industrial ethernet

Wireless Systems and Sensors

Wireless pressure, temperature, level and humidity sensors and systems based primarily on the Zigbee protocol and IEEE802.15.4 (wireless hardware standard).
wireless systems sensors

Power Supplies

Our Power supplies normally convert ac Voltage (85- 264Vac) to a stabilised and regulated dc Voltage (24Vdc). They are available with a range of power capabilities (10W, 15W, 24W, 30W and 240W).
industrial power supplies



 
 
 
 
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