The N30P meter is a programmable digital panel meter destined for the measurement of a.c. voltage, a.c. current, active, reactive and apparent power, cos ϕ, tg ϕ, ϕ, frequency, active, reactive and apparent energy, 15, 30 and 60 minutes’ active power, 10 minutes’ voltage, 10 seconds’ frequency.
Additionally, the meter enables the indication of the current time. The readout field is composed of a display which allows to expose results in red, green and orange colours.
Features of the N30P meter:
- Display colour individually in three ranges.
- Thresholds of displayed overflows.
- 2 NOC relay alarms operating in 6 modes.
- 2 switched relay alarms operating in 6 modes (option).
- Signaling of measuring range overflow.
- Automatic setting of the decimal point.
- Programming of voltage and current ratios.
- Programming of alarm and analog outputs with the reaction on any measured value, independently of the currently displayed value.
- Storage of maximal and minimal values of all input quantities.
- Reset of all watt-hour meters: active and reactive energy.
- Programmed kind of 15, 30 or 60 minutes’ active power measurement: mean walking or synchronization with the RTC clock.
- Manual synchronization of 15 minutes” power, 10 minutes’ voltage.
- Monitoring of set parameter values.
- Interlocking of parameter introduction by means of a password.
- Service of the interface with MODBUS protocol in the RTU mode (option).
- Updating of software through interface RS485.
- Conversion of the measured value into a standard – programmable current or voltage signal (option),
- Highlighting of any measuring unit acc. to the order.
- Galvanic separation between terminals: alarm, supply, input, analog output, pulse output, RS-485 interface.
The switching of the alarm output on, is signaled by the highlighting of the output number.
The casing protection grade from the frontal side is IP 65.
Meter overall dimensions: 96 ´ 48 ´ 93 mm (with terminals).
The meter casing is made of plastics.
Inputs |
Input kind
Voltage input
Current input |
Measuring range
0...100 V or 0...400 V
0...1 A or 0...5 |
Rated operating conditions
0.05...1.2 Un
0.005...1.2 In |
Ratio values
0.1...4000.0
1...10000 |
Measuring Ranges |
Input kind
Current
Voltage
Frequency
Active Power
Reactive Power
Apparent Power
Cos φ
Tangens φ
φ
Active Energy
Reactive Energy
Current Time |
Indication Range
1A / 5A 0.000...60 kA
100V / 400V 0.0...1.92 MV
45.00...100.00 Hz
-19999...99999MW
-19999...0.00...99999 Mvar
0.00...99999 MVA
-1...0...1
-1.2...0...1.2
0...359
0...9 999 999.9kWh
0...9 999 999.9 kVarh
0.00...23.59
|
Measuring Range
0.025...6.000 A a.c.
2.0...480 V a.c.
45.00...66.00...100.00 Hz
-2.88 kW...1.40 W...2.88 kW
-2.88 kvar...1.40 var...2.88 kvar
1.40 VA...2.88kVA
-1...0...1
-1.2...0...1.2
0...359
0...9 999 999.9 kWh
0...9 999 999.9 kVarh
0.00..23.59
|
Basic error
± 0.2%
± 0.2%
± 0.2%
± 0.5%
± 0.5%
± 0.5%
± 0.5%
± 1%
± 1%
± 0.5%
± 0.5%
1 sec/ 24 h
|
Output
Relay output
2 x relays, voltageless NO contacts, load-carrying capacity 250 V a.c./ 0.5 A a.c.
2 x relays, voltageless switched contacts, load-carrying capacity 250 V a.c./ 0.5 A a.c.
Analog output
Current programmable 0/4...20 mA, load resistance ≤ 500 Ω
Voltage programmable 0...10 V, load resistance ≥ 500 Ω
Resolution 0.01% of the range.
Energy pulse
OC type output, passive of class A, acc. to EN62053-31, supply voltage 18...27 V, current 10...27 mA output
Output pulse constant: 5000 imp./kWh, independently of Ku and Ki settings
Resolution 0.01% of the range.
Digital interface
Interface type: RS-485.
Transmission protocol: MODBUS RTU.
Modes: 8N2, 8E1, 8O1, 8N1 .
Baud rates: 4.8, 9.6, 19.2, 38.4kbit/s
External Features
Display
5 Digit LED, three-colour display (colour changes depending on displayed value): Red, Green, Orange
Digit height - 14mm.
Indication range: -19999...99999.
Weight: < 0.2 kg.
Overall dimensions: 96-48-93 mm.
Protection grade: from frontal side: IP65 | from rear side: IP10.
