NOVUS AUTOMATION
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N1540 Digital Panel Meter
UNIVERSAL DIGITAL PANEL METER
INSTRUCTIONS MANUAL – V2.1x F
SAFETY ALERTS
The symbols below are used on the equipment and throughout this
manual to draw the user´s attention to essential information related to
the equipment safety and operation.
CAUTION:
Read the manual thoroughly
before installing and operating
the instrument.
CAUTION OR DANGER:
Electrical shock hazard.
All safety related instructions that appear in the manual must be
observed to ensure personal safety and to prevent damage to either
the instrument or the system. If the instrument is used in a manner not
specified by the manufacturer, the protection provided by the
equipment may be impaired.
PRESENTATION
N1540
is a quite versatile process digital panel meter. With a wide list
of input types
−
thermocouples, thermo-resistance, voltage and current
– the N1540 can measure most of the variables and sensors
encountered in industrial processes.
It contains two alarms (six functions), sensor offset, configuration of
parameters protected by password, serial communication, indication in
degrees Celsius (°C) or Fahrenheit (°F), among others.
Configuration can be performed either directly on the digital panel
meter or via the USB interface once
QuickTune
software has been
installed on the computer to be used. Once connected to USB, the
device will be recognized as a serial communication (COM) port
operating with Modbus RTU protocol.
Through the USB interface, even if disconnected from the power
supply, the configuration performed in a piece of equipment can be
saved in a file and repeated in other pieces of equipment that require
the same configuration.
FEATURES
SIGNAL INPUT (TYPE)
The input type to be used by the
N1540
is defined in the equipment
configuration.
Table 1
presents the input options available for the user:
TYPE
CODE
MEASUREMENT RANGE
J
Tc j
Range: -110 to 950 °C (-166 to 1742 °F)
K
Tc k
Range: -150 to 1370 °C (-238 to 2498 °F)
T
Tc t
Range: -160 to 400 °C (-256 to 752 °F)
N
Tc n
Range: -270 to 1300 °C (-454 to 2372 °F)
R
Tc r
Range: -50 to 1760 °C (-58 to 3200 °F)
S
Tc s
Range: -50 to 1760 °C (-58 to 3200 °F)
B
Tc b
Range: 400 to 1800 °C (752 to 3272 °F)
E
Tc e
Range: -90 to 730 °C (-130 to 1346 °F)
Pt100
Pt
Range: -200 to 850 °C (-328 to 1562 °F)
0-20 mA
L0.20
Analog Linear Signal
Indication programmable from
-2000 to 30000.
4-20 mA
L4.20
0–50 mV
L0.50
0-5 VDC
L0.5
0-10 VDC
L0.10
4-20 mA
NON-
LINEAR
Lnj
Non-Linear Analog Signal
Indication range according to the
associated sensor.
Ln k
ln t
ln n
ln r
ln s
ln b
ln E
Ln.Pt
Table 1 –
Input types
ALARMS
The digital panel meter has two alarms. Each alarm is associated with
an output with the same name: AM1 and ALM2.
The alarms can assume the functions described on
Table 02
.
off
Alarm off.
lo
Alarm of the absolute minimum
value. It triggers when the
PV
value is
below
the value
defined by the alarm Setpoint
(
SPA1
or
SPA2
).
SPA1
PV
ki
Alarm of the absolute
maximum value. It triggers
when the
PV
value is
above
the value defined by the alarm
Setpoint.
SPA1
PV
dif
Alarm of the differential value. In this function, the
SPA1
and
SPA2
parameters represent errors (difference)
between the PV and one reference value
ALrF
.
ALrF
PV
ALrF+SPA1
ALrF–SPA1
ALrF
PV
ALrF – SPA1
ALrF + SPA1
SPA1 positive
SPA1 negative
difl
Alarm of the minimum differential value. It triggers when
the PV value is
below
the point defined by:
ALrF-SPA1
(using alarm 1 as an example).
ALrF
PV
ALrF – SPA1
ALrF
PV
ALrF – SPA1
SPA1 positive
SPA1 negative
