NOVUS n1500lc - Manual (Page 2)

2
3 PRESENTATION
N1500LC is a universal process indicator which accepts a large variety of input signals and sensors.
A six-digit LED display shows measured value and all programming parameters.
Instrument configuration is achieved from the keypad, without any hardware change. Thus, the
selection of input type and alarms modes, besides other special functions, are accessed and defined
from the frontal keypad.
The user should read this manual thoroughly before using the instrument. It must be handled with
care and should be used accordingly for best results.
Some of the features of the basic version are:
 Input:: 4 to 20 mA, 0 to 20 mA, 0 to 20 mV, -20 to +20 mV and 0 to 50 mV
 2 alarm relays
 10 Vdc (or 5 Vdc) power supply for load cells;
 Memory for maximum and minimum values.
 Hold, peak hold, tare, zero tare and automatic zero functions;
 Process Variable (PV) retransmission in 0-20 mA or 4-20 mA.
 RS485 MODBUS RTU serial communication.
 3rd and 4th alarm relays.
The front panel is shown below.
Figure 1 - Front panel identification
Status Display: Shows the process variable (PV) and the programming prompts.
Indicators A1, A2, A3 and A4: show active alarms.
Indicators Rx and Tx: indicate RS485 communication line is active.
PROGRAM key - This key is used to access different displays with the programmable
parameters of the device.
BACK key - This key is used to go back to the previous parameter displayed in the menu
cycle.
INCREMENTS/ZERO key and DECREMENTS/ZERO key – They make possible
the change the parameter values. They are also used to display maximum and minimum
values stored in memory.
FUNCTION key - This special function key is used for pre-programmed functions as
explained in the SPECIAL FUNCTION KEY section of this manual.