DT5-F/G Voltage Monitoring InstrumentDetailed product description：

1： Overview
The DT5-F/G voltage monitoring instrument is a highly stable and reliable statistical instrument for power supply voltage quality. It can continuously measure the voltage signal of the power grid, perform statistical analysis and data storage, and is a high-tech electronic measuring instrument for monitoring and assessing the voltage quality of the power system. Suitable for working under three types of power supplies: AC1OOV, AC22OV, and AC38O. There are three series, DT5-1 can monitor - phase voltage or - line voltage; DT5-2 type can monitor two phase voltages or two line voltages; DT5-3 type can monitor three phase voltages or three line voltages; A large capacity E2 PROM is used to store collected data, enabling the instrument to store statistical data and power outage data for 12 months. In software design, modular and structured programming methods are adopted, and a combination of high-level languages and assembly languages is used to ensure that the program has both fast execution speed to meet real-time monitoring requirements and excellent maintainability. It also adopts SMT technology and new large-scale integrated circuit devices. Such as high-precision, low drift amplifiers, high-speed A/D converters, and single-chip display drivers, simplify circuit design. Multiple electromagnetic compatibility protection measures and surface mounting processes have improved the stability and reliability of the instrument.

2： Main performance
1. Measurement method:
True RMS measurement directly displays the instantaneous value of the measured voltage.
2. Statistical object:
It can collect, store, and perform statistical analysis on high voltage grid voltages above 3KV or low voltage signals of 220V and 380V that are converted to PT100V.
3. Statistical form:
The instrument detects voltage every second and calculates the average voltage for one minute. The instrument automatically classifies and calculates the voltage by day and month.
4. Statistical items and main functions:
Can store statistical data and power outage data for twelve months.
It can store voltage statistics and on-time data for any day of this month, last month, and the previous month, totaling three months.
A multimeter can record and store statistical data and voltage loss conditions for any individual line or phase.
Read the instantaneous voltage value, daily and monthly voltage qualification rate and qualification time, over limit rate and over limit time, maximum (minimum) value and occurrence time, average voltage and total operating time, power outage frequency (32 times per month) and the time of each power outage.
The upper row displays voltage values and percentages on a 4-digit 0.5-inch LED digital display; The lower row displays minutes, date, and time on a 6-digit 0.36-inch LED digital display.

3： Main technical indicators

working power supply		AC100V, AC220V, AC380V optional
measurement range		AC70V~AC130V（PT100V）
		AC154V~AC286V（220V）
		AC266V~AC494V（380V）
power consumption		＜3VA
accuracy	measurement accuracy	＜0.5%
	nonlinearity	＜0.1%
	clock accuracy	＜ 1 second/24 hours
stability	Operating Temperature	-35℃～+60℃
	temperature effect	100PPM/℃
	long-term stability	<0.1%/year
working conditions	temperature	-35℃~60℃
	humidity	20%~90% no condensation
data management	data storage	32K
	Power outage data retention time	a decade
	sampling period	Once per second
	physical interface	RS232/RS485 (single choice)
	communication protocol	101 CDT、Polling
	Baud rate	2400bps, 4800bps, 9600bps (optional)
Other	Overall machine performance	Compliant with DL500-92
	Electromagnetic Compatibility	Compliant with IEC61000
	Lightning surge protection	Compliant with ITUK
	Overall dimensions	140 × 190 × 60 (hanging type)
		160 × 80 × 200 (embedded)
	aperture size	φ 6.2mm (hanging type)
		151 × 71 (embedded)
	weight	0.9KG
	Monitoring circuit	Route 1, Route 2, Route 3 (indicated by the user when placing an order)