Digital Frequency Meter

Digital Frequency Meter

PP7777-series digital frequency meter Summary&application: PP7777-series digital frequency meter is mainly used to measure and display the frequency value of the voltage in a real-time manner in the single phase power circuit. It can far-transmit the measured voltage frequency value via...

Product Details

PP7777-series digital frequency meter

Summary&application: 

PP7777-series digital frequency meter is mainly used to measure and display the frequency value of the voltage in a real-time manner in the single phase power circuit. It can far-transmit the measured voltage frequency value via RS485 interface or analog transmitting output interface. It has high accuracy, good stability, free adjustment for long-work, setting parameters on set and so on features.


1.Main functions and characteristics

◆It can measure and display the frequency value in the electrical circuit in a direct reading method.

◆Extendible for analog quantity output function, transmitting specification of 4~20mA, 0~20mA, 0~10mA which is optional.

◆Extendible for switch quantity output function for the relay, realizing upper/lower-limit alarming output.

◆Extendible for RS-485 communication interface, adopting the standard ModBus-RTU communication protocol and the baud rate can be set.

◆Parameters including the upper/lower-limit alarm value, alarming return difference, communication address of the meter, baud rate, transmitting output mode, transmitting output range, etc. are programmable.

 

2.Model specification and selection description:

(Unit: mm)


Model

Measurement display

T(communication)
     RS485 interface

K

Switch quantity output

B analog quantity    output

External size

Display mode

Frequency

PP7777-1

@

@

@

96×48

 

 

LED display

PP7777-2

@

@

@

72×72

PP7777-3

@

@

@

96×96

PP7777-4

@

@

@

48×48

PP7777-5

@

@

@

120×60

PP7777-6

@

@

@

80×80

PP7777-7

@

@

@

160×80

PP7777-8

@

@

@

120×120


Note: 

1.●means the intrinsic functions of the instrument  

2.@means extendible corresponding optional functions of this series of instruments.

3.The size code with 2, 5, 6 can only be configured with any 2 types of function modules, the size code with 1, 3, 7, 8 can be configured with any of 3 types of function modules, the size code with 4 can only be configured with any of 1 type of function module.

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