Wide Range of Configurable Inputs

Configurable Trip Action & Failsafe Modes

LED Display of Input, Setpoints & Configuration

Isolated Re-Transmission

Ultra Compact

Highly Competitive

The 20-ALM is a single setpoint 4-20mA loop powered trip amplifier with switchable action LED alarm indication, setpoint measurable on the front panel (0.4V to 2V = 4 to 20mA). The 20-ALM is a unique low cost solution to loop monitoring.

The 2002-ALM is available in 3 versions, 2002ALM-HL, 2002ALM-TC & -RTD, accepting voltage / current, thermocouple and resistance thermometer inputs respectively. The 2002ALM-HL is now in a new thinner enclosure. The units have two relay setpoints with LED alarm indication. Each trip can be activated above or below the setpoint, the relays can be energised or de-energised in the alarm condition satisfying fail-safe and non-fail-safe applications. In addition the LED's can be selected to light when the relay is on or off. All these options are user configurable using internal link selectors. The 2002-ALM family are DC powered devices.

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!

In addition the old style 4002ALM is available for mains powered applications.

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.