PZ7777-series digital Voltmeter
Summary&application:
PZ7777-series digital Voltmeter is the new generation of programmable intelligent instrument, integrating measurement, alarm, transmission, communication, mainly applied into real-time measurement and indication for the voltage in the electrical circuit. It can output the limit-value alarming output for the measurement value according to the settings, and conduct transmitting output for the measured electrical quantity data, realizing networked through RS485 communication interface and host computers.
1. Main functions and characteristics:
◆Real-time measurement and indication for the current/voltage value in the circuit.
◆Extendible for one-way analog quantity output function, with various transmitting specifications optional and extendible for switch quantity output function of relay. It can realize upper/lower-limit alarm output, extendible for RS-485 communication interface, adopting standard ModBus-RTU communication protocol and the baud rate can be set.
◆The instrument is characterized with parameters such as range, upper/lower-limit alarm value, alarm return difference, communication address of the meter, baud rate, transmitting output mode, etc. are programmable.
2. Model specification and selection description:
Model | Measurement display | T(communication) | External size | Display mode | |||
AC voltage | AC current | DC voltage | DC current | ||||
PZ7777-1 | ● | @ | 96×48 |
LED display | |||
PZ7777-2 | ● | @ | 72×72 | ||||
PZ7777-3 | ● | @ | 96×96 | ||||
PZ7777-4 | ● | @ | 48×48 | ||||
PZ7777-5 | ● | @ | 120×60 | ||||
PZ7777-6 | ● | @ | 80×80 | ||||
PZ7777-7 | ● | @ | 160×80 | ||||
PZ7777-8 | ● | @ | 120×120 | ||||
PZ7777-1D | ● | @ | 96×48 | ||||
PZ7777-2D | ● | @ | 72×72 | ||||
PZ7777-3D | ● | @ | 96×96 | ||||
PZ7777-4D | ● | @ | 48×48 | ||||
PZ7777-5D | ● | @ | 120×60 | ||||
PZ7777-6D | ● | @ | 80×80 | ||||
PZ7777-7D | ● | @ | 160×80 | ||||
PZ7777-8D | ● | @ | 120×120 | ||||
Note:
the size code with 1,3,7,8 can set 3 types of function modules at the same time, the size code with 2,5,6 can only choose any 2 types of function modules, the size code with 4 can only choose any 1 type of function modules.
3. Main technical performance and parameters:
| Technical parameters | index | ||
Accuracy class | Class 0.5 | ||
Input |
Voltage | Rated value | AC100V,600V optional, DC75mV, 660V, the other special specifications can be custom-made |
Overload | Continuous: 1.2 times, instant: 2 times/5s | ||
consumption | ≤2VA | ||
Resistance | >500kΩ | ||
Current | Rated value | AC1A,5A optional, DC4~20mA, 5A optional, the other special specifications can be custom-made | |
Overload | Continuous: 1.2 times, instant: 10 times/5s | ||
Consumption | ≤1VA | ||
Resistance | <20mΩ | ||
Measuring range of the frequency | 45Hz~65Hz | ||
Output | Display mode | Single line 4 digit LED display, the max. voltage resolution is 0.1V, the max. current resolution is 0.001A | |
Polarity indication | Complete the positive and negative value switch through polarity light(only for DC meter) | ||
Communication | Mode | RS-485 | |
Protocol | MODBUS-RTU | ||
Baud rate | 1200bps, 2400bps, 4800bps, 9600bps, 19200bps, assumed to be 9600bps | ||
Switch quantity output(*) | Upper/limit alarm with the same relay output, contact capacityAC250V/5A, DC30V/2A, can work in the remote mode | ||
Analog quantity output(*) | DC0mA~10mA, DC0mA~20mA, DC4mA~20mA, Class 0.5, customizable voltage output | ||
Working power supply | Range | AC/DC85V~264V | |
Consumption | ≤5VA | ||
Note:
1. This series of meters can be custom-made according to special specifications: input terminal inputs DC standard signals such as 4~20mA, 0~10V, 0~75mV and so on, the head of the meter can display the corresponding parameters including voltage, current, frequency, power, power factor, pressure, flow, etc. in one circuit for the sensor or transmitter.
2.The items marked *are optional, which shall be specified by the customers when ordering.