The N30H meter is a programmable digital panel meter destined for the measurement of d.c. voltage or d.c. current. Additionally, the meter enables the indication of the current time. The readout field is a LED display, which allows the exposition of results in colours: red, green and orange. The measured input signal can be arbitrary converted by means of a 21-point individual characteristic.

Features of the N30H meter:
- Display colour individually programmed in three intervals.
- pProgrammable 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 the measuring range overflow.
- Automatic setting of the decimal point.
- Programming of alarm and analog outputs with the reaction on the chosen input quantity (main or auxiliary input).
- 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.
- Interlocking of introduced parameters by means of a password.
- Recount of the measured quantity on the base of a 21-point individual characteristic.
- Service of the interface with MODBUS protocol in the RTU mode (option).
- Conversion of the measured value into a standard – programmable current or voltage signal (option).
- Highlight of any measuring unit acc. to the order.
- Signaling of alarm operation – switching the alarm on causes the highlight of the output number.
- Galvanic separation between connectors: alarm, supply, input, analog output connections and RS-485 interface.

Protection degree from frontal side: IP65.
Meter overall dimensions: 96 x 48 x 93 mm (with terminals).
The meter casing is made of plastics.

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.

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 VAC (40...400 Hz) 20...60 VDC.
Power input < 6 VA.
Temperature: 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.

The N30H meter is a programmable digital panel meter destined for the measurement of d.c. voltage or d.c. current. Additionally, the meter enables the indication of the current time. The readout field is a LED display, which allows the exposition of results in colours: red, green and orange. The measured input signal can be arbitrary converted by means of a 21-point individual characteristic.

Features of the N30H meter:
- Display colour individually programmed in three intervals.
- pProgrammable 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 the measuring range overflow.
- Automatic setting of the decimal point.
- Programming of alarm and analog outputs with the reaction on the chosen input quantity (main or auxiliary input).
- 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.
- Interlocking of introduced parameters by means of a password.
- Recount of the measured quantity on the base of a 21-point individual characteristic.
- Service of the interface with MODBUS protocol in the RTU mode (option).
- Conversion of the measured value into a standard – programmable current or voltage signal (option).
- Highlight of any measuring unit acc. to the order.
- Signaling of alarm operation – switching the alarm on causes the highlight of the output number.
- Galvanic separation between connectors: alarm, supply, input, analog output connections and RS-485 interface.

Protection degree from frontal side: IP65.
Meter overall dimensions: 96 x 48 x 93 mm (with terminals).
The meter casing is made of plastics.

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.

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 VAC (40...400 Hz) 20...60 VDC.
Power input < 6 VA.
Temperature: 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.