Alarm indicator

The 2408i is a high specification process and temperature alarm indicator with an extensive range of I/O options. A modular hardware build accommodates a range of plug-in modules allowing for up to four alarm outputs, two process or load cell inputs, analogue retransmission, remote setpoint input and digital communications.

The 1/8 (48 x 96 mm) panel mounting 2408i provides a 5 digit red or green 15.9 mm LED with up to 3 decimal places. This allows for a wide variety of process and temperature inputs, plus precision measurement for load cell applications. A universal input allows for mV load cell input plus nine internally stored thermocouple types (J, K, T, L, N, R, S, B and P), Pt100 and process inputs such as 4-20 mA, 0-20 mA and 0-10 VDC, while another 11 thermocouple are available as factory downloadable inputs.

For load cell and strain gauge inputs, the 2408i is fitted with 5 or 10 V excitation supplies for load cell excitation (300 ohm to 10 Kohm).

A second universal process input card can be fitted for applications where maximum, minimum or differential load cell measurements are required. Four internal alarms are software configurable for standard high, low and deviation functions and can also be used to alarm on sensor break as well as rate of change alarm.

Alarm function modes of latching, non-latching, blocking and failsafe are also software selectable as is hysteresis or deadband.

Two choices of power supply allow the 2408i to be used in almost all applications. For worldwide AC powered applications a universal 85-264 VAC supply is provided while low voltage applications a wide ranging AC/DC supply of 20-29 V can be ordered.