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Specifications, Identification, Maintenance – NOVUS N1540 Process Indicator User Manual

Page 5: Support and maintenance, Safety information, Limited warranty and limitation of liability

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N1540 Indicator

NOVUS AUTOMATION

5/5

SPECIFICATIONS

DIMENSIONS: .......................................... 96 x 48 x 35 mm (1/16 DIN)

Panel Cut-out .........................................................93.0 x 45.5 mm
Approximate Weight: ............................................................ 110 g

POWER SUPPLY: ..................... 100 to 240 Vac/dc (±10 %), 50/60 Hz

Optional 24 V: .................... 12 to 24 Vdc / 24 Vac (-10 % / +20 %)

Maximum consumption: ......................................................... 6 VA

ENVIRONMENTAL CONDITIONS:

Operation Temperature: ............................................... 0 to 50 ºC
Relative Humidity: .................................................... 80 % @ 30 ºC
For temperatures above 30 ºC, reduce 3 % per ºC. Indoor use;

Installation Category II, Pollution Degree 2; altitude < 2000 m.

INPUT ................................................................ According to Table 01

Internal Resolution: ...................................... 32767 levels (15 bits)
Display Resolution: .................. 12000 levels (from -1999 to 9999)
Temperature Resolution: ........................................ 0.1 / 1 °F / °C
Input reading rate: ......................................... up to 55 per second
Precision: ... Thermocouples J, K, T, E: 0.25 % of the span ±1 ºC
................... Thermocouples N, R, S, B: 0.25 % of the span ±3 ºC
................................................................ Pt100: 0.2 % of the span
..................... 4-20 mA, 0-50 mV, 0-5 V, 0-10 V: 0.2 % of the span
Input impedance: ........ Pt100, thermocouples, 0-50 mV: > 10 M

................................................................. 0-5 V, 0-10 V: > 500 k

.............................................................................. 4-20 mA: 100

Measuring of the Pt100: ......................... 3 wire type, (α=0.00385)
With compensation of the cable length, max 50 meters,

excitation current of 0.170 mA.

OUTPUT ALARM1: .................. Relay SPST; 240 Vac / 30 Vdc / 1.5 A
OUTPUT ALARM2: .................. Relay SPST; 240 Vac / 30 Vdc / 1.5 A
24 VDC SOURCE: ................................. 24 Vdc (±10 %) / 20 mA max.
CASE: ................................................... Polycarbonate (PC) UL94 V-2
BACK PANEL
: ...................................................... ABS+PC UL94 V-0
CONNECTIONS (WIRING): ........ Plug-in block terminals, 5 mm pitch
USB INTERFACE:
2.0, CDC class (virtual communications port),

MODBUS RTU protocol.
STARTS OPERATION:
after 3 seconds connected to the power

supply.

CERTIFICATIONS:

IDENTIFICATION

N1540

Basic version.

N1540–24

Basic version with power supply 24 Vdc.

N1540–485

With serial communication RS485.

N1540–485–24 Version with RS485 and power 24 Vdc.

MAINTENANCE

PROBLEMS WITH THE INDICATOR
Connection errors and inadequate programming are the most

common problems encountered during the indicator operation. A final

revision can avoid loss of time and damages.
The indicator displays some messages to help the user identify the

problems.

MESSAGE

DESCRIPTION OF THE PROBLEM

----

Open input. Without sensor or signal.

Err1

Err6

Connection and/ or configuration problems. Check

the wiring and the configuration.

Other error messages may indicate hardware problems requiring

maintenance service.
CALIBRATION OF THE INPUT
All inputs are factory calibrated and recalibration should only be done

by qualified personnel. If you are not familiar with these procedures

do not attempt to calibrate this instrument.
The calibration steps are:
a) Configure the input type to be calibrated.
b) Configure the lower and upper indication limits for the maximum

span of the selected input type.

c) Connect to the input terminals a signal corresponding to a known

indication value a little above the lower display limit.

d) Access the parameter inLC. With the keys and adjust the

display reading to match the applied signal. Then press the key

to store.

e) Inject a signal that corresponds to a value a little lower than the

upper limit of indication.

f) Access the parameter inHC. With the keys and adjust the

display reading to match the applied signal. Then press the key

to store.

Note: When checking the indicator calibration with a Pt100 simulator,

pay attention to the simulator minimum excitation current

requirement, which may not be compatible with the 0.170 mA

excitation current provided by the indicator.

SUPPORT AND MAINTENANCE

This product contains no serviceable parts inside. Contact our local

distributor in case you need authorized service. For troubleshooting,

visit our FAQ at

www.novusautomation.com

.

SAFETY INFORMATION

Any control system design should take into account that any part of

the system has the potential to fail. This product is not a protection or

safety device and its alarms are not intended to protect against

product failures. Independent safety devices should be always

provided if personnel or property are at risk.
Product performance and specifications may be affected by its

environment and installation. It’s user’s responsibility to assure

proper grounding, shielding, cable routing and electrical noise

filtering, in accordance with local regulations, EMC standards and

good installation practices.

LIMITED WARRANTY AND LIMITATION OF

LIABILITY

NOVUS warrants to the original purchaser that this product is free

from defects in material and workmanship under normal use and

service within one (1) year from the date of shipment from factory or

from its official sales channel to the original purchaser.
NOVUS liability under this warranty shall not in any case exceed the

cost of correcting defects in the product or of supplying replacement

product as herein provided and upon the expiration of the warranty

period all such liability shall terminate.
For complete information on warranty and liability limitations, check

appropriate section in our web site:

www.novusautomation.com

.

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