The programmable digital panel meter N30O is destined for measurements: number of pulses, frequency, period, work time, encoder position. Additionally, the meter enables the indication of the current time. The readout field is a LED display, which allows the exposition in colors: red, green and orange. The measured input signal can be arbitrary converted by means of mathematics functions and/or a 21-point individual characteristic.
Features of the N30O Meter:
- Display colour individually programmed in three ranges.
- Programmable thresholds of displayed overflows.
- 2 NOC relay alarms operating in 6 modes.
- 2 switched relay alarms with a switching contact operating in 6 modes (option).
- Signaling of measuring range overflow.
- Automatic setting of the decima- point.
- Programming of alarms and analog outputs with the reactionon the selected input quantity (main or auxiliary input).
- Additional counter input.
- Control inputs of the main input work, additional or both simultaneously.
- Signaling of additional input state.
- Possible control of counter operation by means of the meter keyboard.
- Automatic reset of counters at the set point value.
- Real-time clock with the function of the clock supply support in case of the meter supply decay.
- Programmed averaging time – function of walking window with the averaging time up to 1 hour.
- Monitoring of set parameter values.
- Locking of introduced parameters by means of a password.
- Mathematic functions for measured value calculation.
- Recount of the measured quantity on the base of the 21-point individual characteristic.
Protection grade from frontal side: IP65.
Meter overall dimensions: 96 x 48 x 93 mm (with terminals)..
The meter casing is made of plastic.
Inputs
Input signal: Voltage 5...36 V DC. |
|
Input kind
Number of pulses IN1/IN2
Frequency < 10 kHz
Frequency > 10 kHz
Rotational Speed
Period t < 10 s
Period t < 10 s
Worktime counter
Encoder
Current time
|
Indication range
-19 999..99 999
0.05..99 999 Hz
1...99 999 Hz
0.05...99 999 [rpm]
0.01 0.0001...11 [s]
0.0001...3600 [s]
0...99 999 [h]
-19 999...99 999
00.00...23.59
|
Maximal frequency
10 kHz/ 8 kHz
100 kHz
1 MHz
100 kHz
100 kHz
0100 kHz
-
10 kHz
-
|
Class
±1 pulse
0.01
0.01
0.01
0.01
0.01
0.5 sec/ 24 hours
-
0.5 sec./ 24h
|
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
Error of output: 0.2% of the set range. Additional error from temperature changes:50% of class/10K.
OC output: OC type, passive npn, 30 V d.c./30 mA.
Auxiliary supply: 24 V d.c./ 30mA
Digital interface
Interface type: RS-485.
Transmission protocol: MODBUS RTU.
Modes: 8N2, 8E1, 8O1, 8N1.
Baud rates: 4.8, 9.6, 19.2, 38.4, 57.6, 115.2 kbit/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.
Overal - dimensions: 96-48-93 mm.
Protection grade: from frontal side: IP65. From rear side: IP10.
Rated Operating Conditions
Supply Voltage: 85...253 V AC (40...400 Hz) or DC | 20...40 V AC (40...400 Hz) or DC.
Power input < 6 VA.
Temterature ambient: - 25...23...55°C | storage: -30...70°C.
Relative humidity: 25...95%. Condensation inadmissible
Operating position: any.
External magnetic field: 0...400 A/m.
