1、 Overview

SF DT-100The Type V voltage monitor is a high-end multi-channel power grid voltage quality monitoring and statistical instrument that can convert and process the read in voltage signals. Under the synchronous control of the clock, it automatically monitors, counts, and analyzes various statistical values and stores them for users to choose to read out. It can collect, display, classify, and count multiple voltage signals (PT output~100V, 220V, 380V), and can simultaneously monitor the voltage quality of up to three power grids, It is one of the necessary means for monitoring and assessing the voltage quality of the power system.

SF DT-100The Type V voltage monitor adopts a novel and exquisite structure, with a neat appearance, excellent craftsmanship, convenient installation, and easy use. Due to the use of high-end single-chip microcomputers and large-scale IC and SMT surface mount technology for components, and years of market application and baptism, it has been proven that the instrument has strong functions and high reliability.

2、 Main performance indicators

two point oneStatistical objects

It can collect, display, and classify 3KV and above high-voltage power grid voltage, 220V voltage, or 380V voltage signals transmitted to PT~100V or~57.7V.

two point twoStatistical form

The instrument automatically classifies and calculates data on time, day, and month.

two point threeStatistical items and functions

2.3.1Monthly statistics

This machine stores 12 months of monthly statistical data, and the LCD displays the total operating time, qualified time, qualified rate, exceeding upper limit rate and exceeding upper limit time, exceeding lower limit rate and exceeding lower limit time, the highest voltage value and its occurrence time, the lowest voltage value and its occurrence time, and the average voltage of the current and previous months.

2.3.2Daily statistics

        This machine stores daily statistical data for 3 months, and the LCD displays the total operating time, qualified time, qualified rate, exceeding upper limit rate and exceeding upper limit time, exceeding lower limit rate and exceeding lower limit time, highest voltage value and its occurrence time, lowest voltage value and its occurrence time, and average voltage of the current and previous days.

2.3.3Hourly statistics

This machine provides hourly statistical data for the past three days. The LCD displays the total operating time, qualified time, qualified rate, exceeding upper limit rate and exceeding upper limit time, exceeding lower limit rate and exceeding lower limit time, highest voltage value and its occurrence time, lowest voltage value and its occurrence time, and average voltage at the specified time point.

2.3.4Hourly statistics

This machine provides hourly statistical data for the past month and this month.

2.3.5Incoming and Outage Records

       This machine provides the time of arrival and power outage (month, month, day, hour, minute, second).

2.3.6The upper and lower limits of the warning can be set separately, and an alarm output will be generated when the instantaneous pressure value exceeds the upper and lower limits of the warning.Note: Alarm node capacity DC24V

2.3.7Equipped with manual calibration function for measured values.

2.3.8Equipped with a "watchdog" function to ensure reliable program operation.

2.3.9 There is password protection before entering parameter settings to prevent abnormal operations.

two point fourDisplay form: LCD liquid crystal display

two point fiveSampling period 250ms

two point sixDisplay cycle 1 second

two point seven Statistical cycle 1 minute

two point eight accuracy

2.8.1 Measurement range: Un ± 20% (AC)

2.8.2 Comprehensive measurement error: ≤ 0.5%

2.8.3 Clock error: ≤ ± 0.5s/d

2.9 Resolution: ≤ 0.01%

2.10 Signal input circuit power consumption: ≤ 0.6VA

2.11 Power circuit power consumption: ≤ 2VA

2.12 Insulation resistance ≥ 500 megohms

2.13 Power frequency withstand voltage strength 1.5KV, no breakdown for 1 minute

2.14  E2PROMStore important data for a retention period of 100 years.

2.15 Communication medium RS485/GSM (short message)/GPRS

two point one six Normal working environment

2.16.1 Environmental temperature: -40 ℃~+70 ℃

2.16.2 Relative humidity: 90% at+45 ℃

2.16.3 Atmospheric pressure: 79.5~106.0kpa (altitude 2000m and below).

two point one seven The power supply method is to supply power to the tested power supply and auxiliary power supply.

two point one eight Installation methods include hanging and slot mounting.

two point one nine Acquisition circuit: single, two, three, three-phase three wire, three-phase four wire.

Introduction to Product Selection