DD-40NTV

The latest version of Altronic’s industry standard annunciator, the DD-40NTV series monitors up to 40 electrical contacts that represent limits on critical operating parameters such as engine or process pressures, temperatures, levels, etc. Upon detection of a fault from one of the monitored points, the annunciator displays the corresponding 2-digit fault code for that point and generates an output signal (typically to close a fuel valve and ground the ignition). The DD-40NTV annunciator offers integral tachometer and hourmeter functions as well as overspeed protection adjustable from the front keypad. Other features carried over from the prior DD-NTS series include four configuration templates (two of these simulate the older DD-NT 20 and 40 point models), two programmed timers for class B points and a programmable delay of the second shutdown output after fault detection. The annunciator continues logic operation on the internal battery in the event the power becomes disconnected or fails. The DD-40NTV series also provides a ModBus compatible, RS-232/RS-485 serial communications interface for connection to an RTU or PLC. New features in the NTV version when used with power supply 691200-3 include readout of ignition, DC and internal battery voltages and pre-lube and post-lube functions. A sealed membrane keypad and powder-coated aluminum enclosure ensure maximum reliability in harsh and hazardous environments. The DD-40NTV series annunciators are certified by Canadian Standards Association (CSA) as suitable for use in Class I, Division 2, Groups C and D areas.