Pulse/Frequency Digital Panel Meter, N30O
Pulse/Frequency Digital Panel Meter, N30O

Pulse/Frequency Digital Panel Meter, N30O

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$168.99

Pulse/Frequency Digital Panel Meter, N30O

Manufacturer: LUMEL

Product Code: N30O

SKU: AMI-51628-35
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Description

PRODUCT DESCRIPTION

Pulse/Frequency Digital Panel Meter, N30O

 

The N30O meter is destined for the measurement of pulses, frequency, rotational speed, period and worktime. The meter has 2 counter inputs to co-operate with an encoder. The meter counts also the actual and total value.

Features:

  •  Input:
    • number of pulses
    • frequency
    • rotational speed
    • period
    • worktime counter
    • encoder
  • Output: relay (4), analog (1), digital RS-485/MODBUS (1)
  • Three-colour display- red, green and orange, programmable in three intervals of the measured value – facilitates the observation of measured values changes.
    • digit height: 14 mm
    • highlighted measuring unit
  • Four alarm outputs with signaling on LED diodes operating in six different modes.
  • Conversion of any measured value into an analog signal:  0/4…20 mA or 0…10 V.
  • Storage of minimal and maximal values for all measured quantities,
  • Meter programming from the keyboard or through the RS-485 interface by means of the free LPConfig program.
    One can reprogram following parameters:

    • display colour, individually in three intervals,
    • thresholds of displayed overflows,
    • display precision of the result (decimal point),
    • unit highlighting,
    • measurement averaging time,
    • recount of indications (individual characteristic),
    • parameters of alarm outputs.
  • Supply: 85…253 V a.c./d.c. or 20…40 V a.c./d.c.
  • Casing protection grade: IP65
  • Overall dimensions: 96 x 48 x 64 mm

SPECIFICATIONS

Inputs

Input signal:

Input kind

Indication range

Maximal frequecy
of input signal

Class

Remarks

voltage 5..36VDC

Number of pulses Cntr

-19 999..99 999

100 kHz

–

Duration of control
signals must be
higher than 10 ms.

Frequency < 10 kHz

0.05..99 999 Hz

0,01

Frequency > 10 kHz

1..99 999 Hz (measuring
range up to 1 MHz)

1 MHz

0,01

Rotational speed

0.05..99 999 [rpm]

100 kHz

0,01

Period t<10s

0.0001..11 [s]

0,01

Period t>10s

0.0001..3600 [s]

0,01

–

Worktime counter

0..99 999 [h]

 

0,5 sec/24 h

Current time

00.00..23.59

 

0,5 sec/24 h

Encoder

-19 999..99 999

 

 


Outputs

Output kind

Properties

Remarks

Relay output

• 2 x relays, voltageless NO contacts load-carrying capacity 250 V a.c./ 0,5 A a.c.
• 2 x relays, voltageless CO contacts load-carrying capacity 250 V a.c./ 0,5 A a.c.


2 x CO contacts optional

Analog output

• current programmable 0/4..20mA, load resistance ≤ 500 Ω
• voltage programmable 0..10V load resistance ≥ 500 Ω

optional
Error of analogue output:
0,2% of the set range
Additional error from
temperature changes:
50% of the class/10K

OC output

• OC type, passive npn, 30V d.c./30mA

optional

Auxiliary supply

• 24 V d.c./ 30mA

optional


Digital interface

Interface type

Transmission protocol

Modes

Baud rates

Remarks

RS-485

MODBUS RTU

8N2, 8E1, 8O1, 8N1

4.8, 9.6, 19.2, 38.4 kbit/s

optional


External features

Readout field

5 digit LED display ,
indication range -19999..99999 digit,
height: 14 mm

three-colour display
(colour changes depending on displayed value):
red, green, orange

Weight

< 0.2 kg

 

Dimensions

96 x 48 x 93 mm

Panel cut out: 92+0,6 x 45+0,6 mm

Protection level (acc. to EN 60529)

from frontal side: IP65

from rear side: IP10


Rated operating conditions

Supply voltage

85..253 V a.c./d.c. (40..400Hz) or
20..40 V a.c./d.c. (40..400Hz)

 

Temperature

ambient: -25..23..55 °C

storage: -33..70 °C

Relative humidity

25..95%

condensation inadmissible

Working position

any

 

External magnetic field

0…400 A/m

 


Safety and compatibility requirements

Electromagnetic compatibility

Noise immunity

acc. to EN 61000-6-2

Noise emission

acc. to EN 61000-6-4

Insulation between circuits

basic

 

Pollution degree

2

acc. to EN 61010-1

Installation category

III

Maximal phase-to-earth working voltage

for the supply circuit: 300V

for remaining circuits: 50V

Altitude above sea level

<2000 m

 

CONNECTION DIAGRAMS

Fig. 1. Connection of the transducer with the OC output of NPN type

Fig. 2. Connection of the transducer with the OC output of NPN type