Brief Introduction

DC Programmable Electronic Loads IT8500 plus series is a single-channel programmable electronic load. With power ranges from 150W to 3000W. The user can perform online voltage measurements and adjustments or simulate short circuit test using the simple keypad on the front panel. IT8500+ also offers a full-featured battery mode for discharging test. IT8500+ series DC load is a versatile instrument for static and dynamic testing of power supplies, batteries, AC-DC/DC-DC converters, battery chargers, provides user the best testing solution.

Model	Voltage	Current	Power	Communication Interface
IT8511+	120V	30A	150W	DB9(TTL)
IT8511A+	150V	30A	150W	DB9(TTL)
IT8511B+	500V	10A	150W	DB9(TTL)
IT8512+	120V	30A	300W	DB9(TTL)
IT8512A+	150V	30A	300W	DB9(TTL)
IT8512B+	500V	15A	300W	DB9(TTL)
IT8512C+	120V	60A	300W	DB9(TTL)
IT8512H+	800V	5A	300W	DB9(TTL)
IT8513A+	150V	60A	400W	DB9(TTL)
IT8513B+	500V	30A	600W	Standard USB/RS232
IT8513C+	120V	120A	600W	DB9(TTL)
IT8514B+	500V	60A	1500W	Standard USB/RS232
IT8514C+	120V	240A	1500W	Standard USB/RS232
IT8516C+	120V	240A	3000W	Standard USB/RS232

Detailed Specifications

Model			IT8511+
Rated value ( 0~40 ℃)	Input voltage		0~120V
	Input current		0~3A		0~30A
	Input power		150W
	Minimum operation value		0.14V at 3A		1.4V at 30A
CV mode	Range		0.1~18V		0.1~120V
	Resolution		1mV		10mV
	Accuracy		±(0.05%+0.02%FS)		±(0.05%+0.025%FS)
CC mode	Range		0~3A		0~30A
	Resolution		0.1mA		1mA
	Accuracy		±(0.05%+0.05%FS)		±(0.05%+0.05%FS)
CR mode *1	Range		0.05Ω~10Ω		10Ω~7.5KΩ
	Resolution		16bit
	Accuracy		0.01%+0.08S *2		0.01%+0.0008S
CP mode *3	Range		150W
	Resolution		10mW
	Accuracy		±(0.1%+0.2%FS)
Dynamic mode
Dynamic mode	CC mode
	T1&T2		20uS~3600S /Res:1uS
	Accuracy		2uS±100ppm
	Rising/Falling slope *4		0.0001~0.2A/uS		0.001~1.5A/uS
	Minimum rise time *5		≒10uS		≒10uS
Measuring range
Readback voltage	Range		0~18V		0~120V
	Resolution		0.1 mV		1 mV
	Accuracy		±(0.025%+0.025%FS)		±(0.025%+0.025%FS)
Readback current	Range		0~3A		0~30A
	Resolution		0.1mA		1mA
	Accuracy		±(0.05%+0.05%FS)
Readback power	Range		150W
	Resolution		10mW
	Accuracy		±(0.1%+0.2%FS)
Protection range
OPP Protection	≒160W
OCP Protection	≒3.3A				≒33A
OVP Protection	≒125V
OTP Protection	≒85℃
Specification
Short		Current( CC )		≒3.3/3A	≒33/30A

	Voltage( CV )	0V	0V
	Resistance( CR )	≒45mΩ	≒45mΩ
Input Impendance	150KΩ
Dimension	214.5mm88.2mm354.6mm

The voltage/current input is no less than 10% FS
The scope of read back resistance is: (1/(1/R+(1/R)*0.01%+0.08),1/(1/R --(1/R)* 0.08))
The voltage/current input is no less than 10% FS
A cending/descending slope: 10% 90% current ascending slope from 0 to maximum current.
Minimum rise time: 10% 90% current rise time

Model		IT8512+
Rated value ( 0~40 ℃)	Input voltage	0~120V
	Input current	0~3A	0~30A
	Input power	300W
	Minimum operation value	0.12V at 3A	1.2V at 30A
CV mode	Range	0.1~18V	0.1~120V
	Resolution	1mV	10mV
	Accuracy	±(0.05%+0.02%FS)	±(0.05%+0.025%FS)
CC mode	Range	0~3A	0~30A
	Resolution	0.1mA	1mA
	Accuracy	±(0.05%+0.05%FS)	±(0.05%+0.05%FS)
CR mode *1	Range	0.05Ω~10Ω	10Ω~7.5KΩ
	Resolution	16bit
	Accuracy	0.01%+0.08S *2	0.01%+0.0008S
CP mode *3	Range	300W
	Resolution	10mW
	Accuracy	±(0.1%+0.2%FS)
Dynamic mode
Dynamic mode	CC mode
	T1&T2	20uS~3600S /Res:1uS
	Accuracy	2uS±100ppm
	Rising/Falling slope *4	0.0001~0.2A/uS	0.001~1.5A/uS
	Minimum rise time *5	≒10uS	≒10uS
Measuring range
Readback voltage	Range	0~18V	0~120V
	Resolution	0.1 mV	1 mV
	Accuracy	±(0.025%+0.025%FS)	±(0.025%+0.025%FS)
Readback current	Range	0~3A	0~30A
	Resolution	0.1mA	1mA
	Accuracy	±(0.05%+0.05%FS)
Readback power	Range	300W
	Resolution	10mW
	Accuracy	±(0.1%+0.2%FS)
Protection range
OPP Protection	≒320W
OCP Protection	≒3.3A		≒33A
OVP Protection	≒125V

OTP Protection	≒85℃
Specification
Short		Current( CC )	≒3.3/3A	≒33/30A
		Voltage( CV )	0V	0V
		Resistance( CR )	≒40mΩ	≒40mΩ
Input Impendance		150KΩ
Dimension		214.5mm88.2mm354.6mm

The voltage/current input is no less than 10% FS
The scope of read back resistance is: (1/(1/R+(1/R)*0.01%+0.08),1/(1/R --(1/R)* 0.08))
The voltage/current input is no less than 10% FS
A cending/descending slope: 10% 90% current ascending slope from 0 to maximum current.
Minimum rise time: 10% 90% current rise time

Model		IT8511A+		IT8512A+
Rated value ( 0~40 ℃)	Input voltage	0~150V		0~150V
	Input current	0~3A	0~30A	0~3A	0~30A
	Input power	150W		300W
	Minimum operation value	0.25V at 3A	2.5V at 30A	0.14V at 3A	1.4V at 30A
CV mode	Range	0.1~18V	0.1~150V	0.1~18V	0.1~150V
	Resolution	1mV	10mV	1mV	10mV
	Accuracy	±(0.05%+0.0 2%FS)	±(0.05%+0.025%FS)	±(0.05%+0.02%FS)	±(0.05%+0.025%F S)
CC mode	Range	0~3A	0~30A	0~3A	0~30A
	Resolution	0.1mA	1mA	0.1mA	1mA
	Accuracy	±(0.05%+0. 05%FS)	±(0.05%+0.05%FS)	±(0.05%+0.05%FS)	±(0.05%+0.05% FS)
CR mode *1	Range	0.05Ω~10Ω	10Ω~7.5KΩ	0.05Ω~10Ω	10Ω~7.5KΩ
	Resolution	16bit		16bit
	Accuracy	0.01%+0.08 S *2	0.01%+0.0008S	0.01%+0.08S *2	0.01%+0.0008S
CP mode *3	Range	150W		300W
	Resolution	10mW		10mW
	Accuracy	±( 0.1%+0.1%FS )		±( 0.1%+0.1%FS )
Dynamic mode( CC mode )
T1&T2		20uS~3600S /Res:1uS		20uS~3600S /Res:1 uS
Accuracy		2uS±100ppm		2uS±100ppm
Rising/Falling slope *4		0.0001~0.2 A/uS	0.001~1.5A/uS	0.0001~0.2A/uS	0.001~1.5A/uS
Minimum rise time*5		≒10uS	≒10uS	≒10uS	≒10uS
Measuring range
Readback voltage	Range	0~18V	0~150V	0~18V	0~150V
	Resolution	0.1 mV	1 mV	0.1 mV	1 mV
	Accuracy	±(0.025%+0. 025%FS)	±(0.025%+0.025%FS)	±(0.025%+0.025%FS)	±(0.025%+0.025% FS)
Readback current	Range	0~3A	0~30A	0~3A	0~30A
	Resolution	0.1mA	1mA	0.1mA	1mA
	Accuracy	±(0.05%+0.05%FS)		±(0.05%+0.05%FS)
Readback power	Range	150W		300W
	Resolution	10mW		10mW
	Accuracy	±(0.1%+0.1%FS)		±(0.1%+0.1%FS)

Protection range
OPP Protection	≒160W			≒320W
OCP Protection	≒3.3A		≒33A	≒3.3A	≒33A
OVP Protection	≒160V			≒160V
OTP Protection	≒85℃			≒85℃
Specification
Short	Current( CC )	≒3.3/3A	≒33/30A	≒3.3/3A	≒33/30A
	Voltage( CV )	0V	0V	0V	0V
	Resistance( CR )	≒80mΩ	≒80mΩ	≒40mΩ	≒40mΩ
Input Impendance	150KΩ			150KΩ
Dimension	214.5mm88.2mm354.6mm			214.5mm88.2mm354.6mm

The voltage/current input is no less than 10% FS
The scope of read back resistance is: (1/(1/R+(1/R)*0.01%+0.08),1/(1/R --(1/R)* 0.08))
The voltage/current input is no less than 10% FS
A cending/descending slope: 10% 90% current ascending slope from 0 to maximum current.
Minimum rise time: 10% 90% current rise time

	Model		IT8511B+
	Rated value ( 0~40 ℃)	Input voltage	0~500V
		Input current	0~3A	0~10A
		Input power	150W
		Minimum operation value	1.2V at 3A	4V at 10A
	CV mode	Range	0.1~50V	0.1~500V
		Resolution	1mV	10mV
		Accuracy	±(0.05%+0.05%FS)	±(0.05%+0.05%FS)
	CC mode	Range	0~3A	0~10A
		Resolution	0.1mA	1mA
		Accuracy	±(0.05%+0.05%FS)	±(0.05%+0.05%FS)
	CR mode *1	Range	0.5Ω~10Ω	10Ω~7.5KΩ
		Resolution	16bit
		Accuracy	0.01%+0.08S *2	0.01%+0.0008S
	CP mode *3	Range	150W
		Resolution	10mW
		Accuracy	0.1%+0.2%FS
	Dynamic mode
	Dynamic mode	CC mode
		T1&T2	20uS~3600S /Res:1uS
		Accuracy	2uS±100ppm
		Rising/Falling slope *4	0.0001~0.2A/uS	0.001~0.8A/uS
		Minimum rise time *5	≒10uS	≒10uS
	Measuring range
	Readback voltage	Range	0~50V	0~500V
		Resolution	1 mV	10 mV
		Accuracy	±(0.025%+0.025%FS)	±(0.025%+0.025%FS)
	Readback current	Range	0~3A	0~10A
		Resolution	0.1mA	1mA
		Accuracy	±(0.05%+0.05%FS)
Copyright © Itech Electronic Co., Ltd. 54

Readback power	Range		150W
	Resolution		10mW
	Accuracy		±(0.1%+0.2%FS)
Protection range
OPP Protection	≒160W
OCP Protection	≒3.3A				≒11A
OVP Protection	≒530V
OTP Protection	≒85℃
Specification
Short		Current( CC )		≒3.3/3A	≒11/10A
		Voltage( CV )		0V	0V
		Resistance( C R )		≒400mΩ	≒400mΩ
Input Impendance		1MΩ
Dimension		214.5mm88.2mm354.6mm

The voltage/current input is no less than 10% FS
The scope of read back resistance is: (1/(1/R+(1/R)*0.01%+0.08),1/(1/R --(1/R)* 0.08))
The voltage/current input is no less than 10% FS
A cending/descending slope: 10% 90% current ascending slope from 0 to maximum current.
Minimum rise time: 10% 90% current rise time

Model		IT8512B+
Rated value ( 0~40 ℃)	Input voltage	0~500V
	Input current	0~3A	0~15A
	Input power	300W
	Minimum operation value	0.6V at 3A	3V at 15A
CV mode	Range	0.1~50V	0.1~500V
	Resolution	1mV	10mV
	Accuracy	±(0.05%+0.05%FS)	±(0.05%+0.05%FS)
CC mode	Range	0~3A	0~15A
	Resolution	0.1mA	1mA
	Accuracy	±(0.05%+0.05%FS)	±(0.05%+0.05%FS)
CR mode *1	Range	0.3Ω~10Ω	10Ω~7.5KΩ
	Resolution	16bit
	Accuracy	0.01%+0.08S *2	0.01%+0.0008S
CP mode *3	Range	300W
	Resolution	10mW
	Accuracy	0.1%+0.2%FS
Dynamic mode
Dynamic mode	CC mode
	T1&T2	20uS~3600S /Res:1uS
	Accuracy	2uS±100ppm
	Rising/Falling slope *4	0.0001~0.2A/uS	0.001~0.8A/uS
	Minimum rise time *5	≒10uS	≒10uS
Measuring range
Readback voltage	Range	0~50V	0~500V
Readback voltage	Resolution	1 mV	10 mV

	Accuracy		±(0.025%+0.025%FS)		±(0.025%+0.025%FS)
Readback current	Range		0~3A		0~15A
	Resolution		0.1mA		1mA
	Accuracy		±(0.05%+0.05%FS)
Readback power	Range		300W
	Resolution		10mW
	Accuracy		±(0.1%+0.2%FS)
Protection range
OPP Protection	≒320W
OCP Protection	≒3.3A				≒16A
OVP Protection	≒530V
OTP Protection	≒85℃
Specification
Short		Current( CC )		≒3.3/3A	≒16/15A
		Voltage( CV )		0V	0V
		Resistance( CR )		≒180mΩ	≒180mΩ
Input Impendance		1MΩ
Dimension		214.5mm88.2mm354.6mm

The voltage/current input is no less than 10% FS
The scope of read back resistance is: (1/(1/R+(1/R)*0.01%+0.08),1/(1/R --(1/R)* 0.08))
The voltage/current input is no less than 10% FS
A cending/descending slope: 10% 90% current ascending slope from 0 to maximum current.
Minimum rise time: 10% 90% current rise time

Model		IT8512C+
Rated value ( 0~40 ℃)	Input voltage	0~120V
	Input current	0~6A	0~60A
	Input power	300W
	Minimum operation value	0.25V at 6A	2.5V at 60A
CV mode	Range	0.1~18V	0.1~120V
	Resolution	1mV	10mV
	Accuracy	±(0.05%+0.02%FS)	±(0.05%+0.025%FS)
CC mode	Range	0~6A	0~60A
	Resolution	0.1mA	1mA
	Accuracy	±(0.05%+0.05%FS)	±(0.05%+0.1%FS)
CR mode *1	Range	0.05Ω~10Ω	10Ω~7.5KΩ
	Resolution	16bit
	Accuracy	0.01%+0.08S *2	0.01%+0.0008S
CP mode *3	Range	300W
	Resolution	10mW
	Accuracy	±(0.1%+0.3%FS)
Dynamic mode
Dynamic mode	CC mode
	T1&T2	20uS~3600S /Res:1uS
	Accuracy	2uS±100ppm
	Rising/Falling slope *4	0.0001~0.3A/uS	0.001~3A/uS

	Minimum rise time *5		≒10uS		≒10uS
Measuring range
Readback voltage	Range		0~18V		0~120V
	Resolution		0.1 mV		1 mV
	Accuracy		±(0.025%+0.025%FS)		±(0.025%+0.025%FS)
Readback current	Range		0~6A		0~60A
	Resolution		0.1mA		1mA
	Accuracy		±(0.05%+0.05%FS)		±(0.05%+0.1%FS)
Readback power	Range		300W
	Resolution		10mW
	Accuracy		±(0.1%+0.3%FS)
Protection range
OPP Protection	≒320W
OCP Protection	≒6.5A				≒65A
OVP Protection	≒125V
OTP Protection	≒85℃
Specification
Short		Current( CC )		≒6.5/6A	≒65/60A
		Voltage( CV )		0V	0V
		Resistance( C R )		≒40mΩ	≒40mΩ
Input Impendance		150KΩ
Dimension		214.5mm88.2mm354.6mm

The voltage/current input is no less than 10% FS
The scope of read back resistance is: (1/(1/R+(1/R)*0.01%+0.08),1/(1/R --(1/R)* 0.08))
The voltage/current input is no less than 10% FS
A cending/descending slope: 10% 90% current ascending slope from 0 to maximum current.
Minimum rise time: 10% 90% current rise time

Model		IT8512H+
Rated value ( 0~40 ℃)	Input voltage	0~800V
	Input current	0~1A	0~5A
	Input power	300W
	Minimum operation value	1.4V at 1A	7V at 5A
CV mode	Range	0.1~80V	0.1~800V
	Resolution	1mV	10mV
	Accuracy	±(0.05%+0.05%FS)	±(0.05%+0.05%FS)
CC mode	Range	0~1A	0~5A
	Resolution	0.1mA	1mA
	Accuracy	±(0.05%+0.1%FS)	±(0.05%+0.05%FS)
CR mode *1	Range	2Ω~10Ω	10Ω~7.5KΩ
	Resolution	16bit
	Accuracy	0.01%+0.08S *2	0.01%+0.0008S
CP mode *3	Range	300W
	Resolution	10mW
	Accuracy	0.2%+0.2%FS
Dynamic mode

Dynamic mode	CC mode
	T1&T2		20uS~3600S /Res:1uS
	Accuracy		2uS±100ppm
	Rising/Falling slope *4		0.0001~0.04A/uS		0.001~0.2A/uS
	Minimum rise time *5		≒20uS		≒20uS
Measuring range
Readback voltage	Range		0~80V		0~800V
	Resolution		1 mV		10 mV
	Accuracy		±(0.025%+0.025%FS)		±(0.025%+0.025%FS)
Readback current	Range		0~1A		0~5A
	Resolution		0.1mA		1mA
	Accuracy		±(0.05%+0.05%FS)
Readback power	Range		300W
	Resolution		10mW
	Accuracy		±(0.2%+0.2%FS)
Protection range
OPP Protection	≒320W
OCP Protection	≒1.1A				≒5.5A
OVP Protection	≒850V
OTP Protection	≒85℃
Specification
Short		Current( CC )		≒1.1/1A	≒5.5/5A
		Voltage( CV )		0V	0V
		Resistance( C R )		≒1.4Ω
Input Impendance		2MΩ
Dimension		214.5mm88.2mm354.6mm

The voltage/current input is no less than 10% FS
The scope of read back resistance is: (1/(1/R+(1/R)*0.01%+0.08),1/(1/R --(1/R)* 0.08))
The voltage/current input is no less than 10% FS
A cending/descending slope: 10% 90% current ascending slope from 0 to maximum current.
Minimum rise time: 10% 90% current rise time

Model		IT8513A+
Rated value ( 0~40 ℃)	Input voltage	0~150V
	Input current	0~6A	0~60A
	Input power	400W
	Minimum operation value	0.25V at 6A	2.5V at 60A
CV mode	Range	0.1~18V	0.1~150V
	Resolution	1mV	10mV
	Accuracy	±(0.05%+0.02%FS)	±(0.05%+0.025%FS)
CC mode	Range	0~6A	0~60A
	Resolution	0.1mA	1mA
	Accuracy	±(0.05%+0.05%FS)	±(0.05%+0.05%FS)
CR mode *1	Range	0.1Ω~10Ω	10Ω~7.5KΩ
CR mode *1	Resolution	16bit

	Accuracy		0.01%+0.08S *2		0.01%+0.0008S
CP mode *3	Range		400W
	Resolution		10mW
	Accuracy		±(0.2%+0.2%FS)
Dynamic mode
Dynamic mode	CC mode
	T1&T2		100uS~3600S /Res:1uS
	Accuracy		10Us+100ppm
	Rising/Falling slope *4		0.001~0.15A/uS		0.01~1 A/uS
	Minimum rise time *5		≒50uS		≒60uS
Measuring range
Readback voltage	Range		0~18V		0~150V
	Resolution		0.1 mV		1mV
	Accuracy		±(0.025%+0.025%FS)		±(0.025%+0.025%FS)
Readback current	Range		0~6A		0~60A
	Resolution		0.1mA		1mA
	Accuracy		±(0.05%+0.05%FS)
Readback power	Range		400W
	Resolution		10mW
	Accuracy		±(0.2%+0.2%FS)
Protection range
OPP Protection	≒420W
OCP Protection	≒6.6A				≒66A
OVP Protection	≒165V
OTP Protection	≒85℃
Specification
Short		Current( CC )		≒6.6/6A	≒66/60A
		Voltage( CV )		≒0V
		Resistance( C R )		≒30mΩ
Input Impendance		≒280KΩ
Dimension		214.5mm88.2mm453.5mm

The voltage/current input is no less than 10% FS
The scope of read back resistance is: (1/(1/R+(1/R)*0.01%+0.08),1/(1/R --(1/R)* 0.08))
The voltage/current input is no less than 10% FS
A cending/descending slope: 10% 90% current ascending slope from 0 to maximum current.
Minimum rise time: 10% 90% current rise time

Model		IT8513B+
Rated value ( 0~40 ℃)	Input voltage	0~500V
	Input current	0~3A	0~30A
	Input power	600W
	Minimum operation value	0.3V at 3A	3V at 30A
CV mode	Range	0.1~50V	0.1~500V
	Resolution	1mV	10mV
	Accuracy	±(0.05%+0.05%FS)	±(0.05%+0.05%FS)
CC mode	Range	0~3A	0~30A

	Resolution	1mA	10mA
	Accuracy	±(0.05%+0.05%FS)	±(0.05%+0.05%FS)
CR mode *1	Range	0.Ω~10Ω	10Ω~7.5KΩ
	Resolution	16bit
	Accuracy	0.02%+0.08S *2	0.02%+0.0008S
CP mode *3	Range	600W
	Resolution	10mW
	Accuracy	±(0.2%+0.2%FS)
Dynamic mode
Dynamic mode	CC mode
	T1&T2	100uS~3600S /Res:1uS
	Accuracy	10uS±100ppm
	Rising/Falling slope *4	0.001~0.05A/uS	0.01~0.5A/uS
	Minimum rise time *5	≒60uS	≒60uS
Measuring range
Readback voltage	Range	0~50V	0~500V
	Resolution	1 mV	10mV
	Accuracy	±(0.025%+0.025%FS)	±(0.025%+0.025%FS)
Readback current	Range	0~3A	0~30A
	Resolution	1mA	10mA
	Accuracy	±(0.05%+0.05%FS)
Readback power	Range	600W
	Resolution	10mW
	Accuracy	±(0.2%+0.2%FS)
Protection range
OPP Protection	≒650W
OCP Protection	≒3.3A		≒33A
OVP Protection	≒530V
OTP Protection	≒85℃
Specification
Short	Current( CC )	≒3.4/3A	≒34/30A
	Voltage( CV )	0V	0V
	Resistance( C R )	≒100mΩ	≒100mΩ
Input Impendanc e	1MΩ
Weight	436.5mm88.2mm463.5mm

The voltage/current input is no less than 10% FS
The scope of read back resistance is: (1/(1/R+(1/R)*0.01%+0.08),1/(1/R --(1/R)* 0.08))
The voltage/current input is no less than 10% FS
A cending/descending slope: 10% 90% current ascending slope from 0 to maximum current.
Minimum rise time: 10% 90% current rise time

Model		IT8513C+
Rated value ( 0~40 ℃)	Input voltage	0~120V
	Input current	0~12A	0~120A
	Input power	600W

	Minimum operation value		0.2V at 12A		2V at 120A
CV mode	Range		0.1~18V		0.1~120V
	Resolution		1mV		10mV
	Accuracy		±(0.05%+0.02%FS)		±(0.05%+0.025%FS)
CC mode	Range		0~12A		0~120A
	Resolution		1mA		10mA
	Accuracy		±(0.05%+0.05%FS)		±(0.05%+0.1%FS)
CR mode *1	Range		0.05Ω~10Ω		10Ω~7.5KΩ
	Resolution		16bit
	Accuracy		0.01%+0.08S *2		0.01%+0.0008S
CP mode *3	Range		600W
	Resolution		10mW
	Accuracy		±(0.2%+0.2%FS)
Dynamic mode
Dynamic mode	CC mode
	T1&T2		100uS~3600S /Res:1uS
	Accuracy		10uS±100ppm
	Rising/Falling slope *4		0.001~0.2A/uS		0.01~1.6A/uS
	Minimum rise time *5		≒60uS		≒60uS
Measuring range
Readback voltage	Range		0~18V		0~120V
	Resolution		0.1 mV		1mV
	Accuracy		±(0.025%+0.025%FS)		±(0.025%+0.025%FS)
Readback current	Range		0~12A		0~120A
	Resolution		1mA		10mA
	Accuracy		±(0.05%+0.05%FS)		±(0.05%+0.1%FS)
Readback power	Range		600W
	Resolution		10mW
	Accuracy		±(0.2%+0.2%FS)
Protection range
OPP Protection	≒620W
OCP Protection	≒13A				≒130A
OVP Protection	≒125V
OTP Protection	≒95℃
Specification
Short		Current( CC )		≒13/12A	≒130/120A
		Voltage( CV )		0V	0V
		Resistance( CR )		≒15mΩ	≒15mΩ
Input Impendance		150KΩ
Weight		7.1KG
Dimension		214.5mm88.2mm453.5mm

The voltage/current input is no less than 10% FS
The scope of read back resistance is: (1/(1/R+(1/R)*0.01%+0.08),1/(1/R --(1/R)* 0.08))
The voltage/current input is no less than 10% FS
A cending/descending slope: 10% 90% current ascending slope from 0 to maximum current.
Minimum rise time: 10% 90% current rise time

Model			IT8514C+
Rated value ( 0~40 ℃)	Input voltage			0~120V
	Input current			0~24A		0~240A
	Input power			1500W
	Minimum operation value			0.25V at 24A		2.5V at 240A
CV mode	Range			0.1~18V		0.1~120V
	Resolution			1mV		10mV
	Accuracy			±(0.05%+0.02%FS)		±(0.05%+0.025%FS)
CC mode	Range			0~24A		0~240A
	Resolution			1mA		10mA
	Accuracy			±(0.1%+0.1%FS)
CR mode *1	Range			0.05Ω~10Ω		10Ω~7.5KΩ
	Resolution			16bit
	Accuracy			0.02%+0.08S *2		0.02%+0.0008S
CP mode *3	Range			1500W
	Resolution			10mW
	Accuracy			±(0.2%+0.2%FS)
Dynamic mode
CC mode
T1&T2			100uS~3600S /Res:1uS
Accuracy			10uS±100ppm
Rising/Falling slope*4			0.001~0.3A/uS			0.01~3.2A/uS
Minimum rise time*5			≒60uS			≒60uS
Measuring range
Readback voltage	Range			0~18V		0~120V
	Resolution			0.1 mV		1mV
	Accuracy			±(0.025%+0.025%FS)
Readback current	Range			0~24A		0~240A
	Resolution			1mA		10mA
	Accuracy			±(0.05%+0.05%FS)
Readback power	Range			1500W
	Resolution			10mW
	Accuracy			±(0.2%+0.2%FS)
Protection range
OPP Protection	≒1550W
OCP Protection	≒26.7A					≒267A
OVP Protection	≒125V
OTP Protection	≒85℃
Specification
Short		Current( CC )			≒26.7/24A	≒267/240A
		Voltage( CV )			0V	0V
		Resistance( CR )			≒8mΩ	≒8mΩ
Input Impendance		150KΩ
Dimension		436.5mm88.2mm463.5mm

The voltage/current input is no less than 10% FS
The scope of read back resistance is: (1/(1/R+(1/R)*0.01%+0.08),1/(1/R --(1/R)* 0.08))
The voltage/current input is no less than 10% FS
A cending/descending slope: 10% 90% current ascending slope from 0 to maximum current.
Minimum rise time: 10% 90% current rise time

Model			IT8514B+
Rated value ( 0~40 ℃)	Input voltage		0~500V
	Input current		0~6A		0~60A
	Input power		1500W
	Minimum operation value		0.3V at 6A		3V at 60A
CV mode	Range		0.1~50V		0.1~500V
	Resolution		1mV		10mV
	Accuracy		±(0.05%+0.05%FS)		±(0.05%+0.05%FS)
CC mode	Range		0~6A		0~60A
	Resolution		1mA		10mA
	Accuracy		±(0.05%+0.05%FS)		±(0.05%+0.05%FS)
CR mode *1	Range		0.05Ω~10Ω		10Ω~7.5KΩ
	Resolution		16bit
	Accuracy		0.02%+0.08S *2		0.02%+0.0008S
CP mode *3	Range		1500W
	Resolution		10mW
	Accuracy		±(0.2%+0.2%FS)
Dynamic mode
Dynamic mode	CC mode
	T1&T2		100uS~3600S /Res:1uS
	Accuracy		10uS±100ppm
	Rising/Falling slope *4		0.001~0.15A/uS		0.01~0.8A/uS
	Minimum rise time *5		≒60uS		≒60uS
Measuring range
Readback voltage	Range		0~50V		0~500V
	Resolution		0.1 mV		1mV
	Accuracy		±(0.025%+0.025%FS)		±(0.025%+0.025%FS)
Readback current	Range		0~6A		0~60A
	Resolution		1mA		10mA
	Accuracy		±(0.05%+0.05%FS)
Readback power	Range		1500W
	Resolution		10mW
	Accuracy		±(0.2%+0.2%FS)
Protection range
OPP Protection	≒1550W
OCP Protection	≒6.7A				≒67A
OVP Protection	≒530V
OTP Protection	≒85℃
Specification
Short		Current( CC )		≒6.7/6A	≒67/60A
		Voltage( CV )		0V	0V
		Resistance( C R )		≒50mΩ	≒50mΩ

The voltage/current input is no less than 10% FS
The scope of read back resistance is: (1/(1/R+(1/R)*0.01%+0.08),1/(1/R --(1/R)* 0.08))
The voltage/current input is no less than 10% FS
A cending/descending slope: 10% 90% current ascending slope from 0 to maximum current.
Minimum rise time: 10% 90% current rise time

Model		IT8516C+
Rated value ( 0~40 ℃)	Input voltage	0~120V
	Input current	0~24A	0~240A
	Input power	3000W
	Minimum operation value	0.15V at 24A	1.5V at 240A
CV mode	Range	0.1~18V	0.1~120V
	Resolution	1mV	10mV
	Accuracy	±(0.05%+0.025%FS)	±(0.05%+0.025%FS)
CC mode	Range	0~24A	0~240A
	Resolution	1mA	10mA
	Accuracy	±(0.1%+0.1%FS)	±(0.1%+0.1%FS)
CR mode *1	Range	0.05Ω~10Ω	10Ω~7.5KΩ
	Resolution	16bit
	Accuracy	0.02%+0.08S *2	0.02%+0.0008S
CP mode *3	Range	3000W
	Resolution	10mW
	Accuracy	±(0.2%+0.2%FS)
Dynamic mode
Dynamic mode	CC mode
	T1&T2	120uS~3600S /Res:1uS
	Accuracy	10uS+100ppm
	Rising/Falling slope *4	0.001~0.25A/uS	0.01~2.5A/uS
	Minimum rise time *5	≒70uS	≒70uS
Measuring range
Readback voltage	Range	0~18V	0~120V
	Resolution	0.1 mV	1mV
	Accuracy	±(0.025%+0.025%FS)	±(0.025%+0.025%FS)
Readback current	Range	0~24A	0~240A
	Resolution	1mA	10mA
	Accuracy	±(0.1%+0.1%FS)
Readback power	Range	3000W
	Resolution	10mW
	Accuracy	±(0.2%+0.2%FS)
Protection range
OPP Protection	≒3000W
OCP Protection	≒26A		≒260A
OVP Protection	≒125V
OTP Protection	≒85℃
Specification

Short	Current( CC )	≒26/24A	≒260/240A
	Voltage( CV )	0V	0V
	Resistance( CR )	≒6mΩ	≒6mΩ
Input Impendance	≒300KΩ
Dimension	436.5mm176mm463.5mm

The voltage/current input is no less than 10% FS
The scope of read back resistance is: (1/(1/R+(1/R)*0.01%+0.08),1/(1/R --(1/R)* 0.08))
The voltage/current input is no less than 10% FS
A cending/descending slope: 10% 90% current ascending slope from 0 to maximum current.
Minimum rise time: 10% 90% current rise time

Supplementary Characteristics

Memory capacity: 100 registers
Suggested calibration frequency: Once a year
AC input level (A transfer switch is selectable on the rear panel) Option Opt.1: 220V ±10% 50Hz/60Hz
Option Opt.2: 110V ±10% 50Hz/60Hz
Cooling type Intelligent fans
Fans working principle:
Fans running speed is determined by radiator temperature.When temperature reaches 40℃,fans start to work and intelligently adjust its speed with temperature variation.

Description

The iTECH DC Programmable Electronic Loads IT8500 plus is a robust and feature-rich device that serves as an indispensable tool for engineers and technicians. It offers a wide range of programmable load modes, enabling users to simulate various real-world scenarios. The device is known for its high precision and reliability, making it suitable for critical testing applications. The intuitive user interface and comprehensive software support facilitate easy operation and integration into automated test systems.

The IT8500 plus also features advanced safety mechanisms such as overcurrent, overvoltage, and overtemperature protections, ensuring safe operation even under extreme conditions. With its modular design, users can easily expand the system's capabilities by adding more units in parallel, making it a scalable solution for growing test requirements.

Product Feature

High-visibility vacuum fluorescent display (VFD)
Measurement resolution: 0.1mV, 0.1mA
Voltage and current measurement speed: up to 40KHZ
Four operation modes: CV (Constant Voltage), CC, CR, CW
Battery test function
OCP test, OPP test
Measurement function: measuring voltage rise and fall time
Automatic test function
List mode, which can simulate a variety of load state changes
Short circuit function
Remote sense function
Memory capacity to save/recall setting parameters: 100 registers
Intelligent fans
Built-in Buzzer as alarm signal
Power off memory function

Front Panel Introduction

IT8500+ series electronic load different models have different front panels, the front panels and keyboards of different models are shown as below.

IT8511+/IT8511A+/IT8511B+/IT8512+/IT8512A+/IT8512B+/IT8512C+/IT8512H+/IT8513A+/IT8513C+ Model

Power switch
Vacuum fluorescent display (VFD)
Compound key and the local switch key
Number key:
Set the parameters value, achieve the menu’s function by key combination
Function key:
Set the operation mode
Control the input state: On/Off
Direction function
Rotary knob
Input terminal

IT8513B+/IT8514B+ IT8514B+/M model

Power switch
Vacuum fluorescent display (VFD)
Compound key and the local switch key
Number key:
Set the parameters value, achieve the menu’s function by key combination
Function key:
Set the operation mode
Control the input state: On/Off
Direction function
Rotary knob
Input terminal

IT8516C+ Model

Power switch
Vacuum fluorescent display (VFD)
Compound key and the local switch key
Number key:
Set the parameters value, achieve the menu’s function by key combination
Function key:
Set the operation mode
Control the input state: On/Off
Direction function
Rotary knob
Input terminal

Front Panel Keys

Combination Keys

Press [ button first and then other keys to achieve all kinds of functions in the following table.

[Shift]+[1] (Short)	Start or stopthe short circuittest.
[Shift]+[2] (Tran)	Set the transient operation parameters.
[Shift]+[3] (List)	Set the LISToperation parameters.
[Shift]+[4] (Save)	Store the parameter value of the currently load. Including: voltage, current and power values, and so on.
[Shift]+[5] (Battery)	Battery test function.
[Shift]+[6] (Prog)	Automatic test function.
[Shift]+[7] (Info)	Displays the modelnumber, version number,and serial number of the electronic load.
[Shift]+[8] (System)	System menu setting
[Shift]+[9] (Config)	Configure menu setting
[Shift]+[0] (Pause)	Pressing this button duringthe running of the automatic test indicates that the automatic test is suspended.
[Shift]+[ ] (Trigger)	Cause an immediate trigger.
[Shift]+[CC] (OCP)	Enter OCP test function.
[Shift]+[CV] (Setup)	Set detailed parameters in CC/CV/CW/CR mode.
[Shift]+[CW] (OPP)	Enter OPP testfunction.
[Shift]+[CR] (CR-LED)	CR-LED function setting
[Shift]+[Enter] (Recall)	Recall the load parameter values that have been stored. Includes: voltage, current and power settings, and so on.
[Shift]+[On/Off] (Lock)	Key lock function

VFD Annunciators

OFF	The load inputis off.	Error	An error hasoccurred.
CC	Constantcurrent mode	Trig	Waiting for the trigger signal.

CV	Constantvoltage mode	Sense	Remote sensingis turned on.
CR	Constant resistance mode	Prot	Protection function is turned on.
CW	Constant power mode	Auto	Voltage range automatically seleted function is turned on.
Rmt	Instrument is in the remote state.	Lock	The keyboard is locked.
Timer	LOAD ON timer is turned on.	Shift	Shift button has been pressed.

Rear Panel Introduction

IT8500+ series electronic load different models have different rear panels, the rear panels and keyboards of different models are shown as below.

IT8511+/IT8511A+/IT8511B+/IT8512+/IT8512A+/IT8512B+/IT8512C+/IT8512H+ Model

Thermal window
Line voltage selection switch 110V/220V
3 pin IEC320 AC input connector
Current monitoring terminal
9 Pin serial port interface connector
4 pin trigger and remote sensing connector

IT8513A+/IT8513C+ Model

Thermal window
Line voltage selection switch 110V/220V
3 pin IEC320 AC input connector
Current monitoring terminal
9 Pin serial port interface connector
4 pin trigger and remote sensing connector

IT8513B+/IT8514B+ IT8514B+/M model

Thermal window
Line voltage selection switch 110V/220V
3 pin IEC320 AC input connector
Current monitoring terminal
RS232 communication cable interface
4 pin trigger and remote sensing connector
USB communication cable interface

IT8516C+ M model

Thermal window
Line voltage selection switch 110V/220V
3 pin IEC320 AC input connector
Current monitoring terminal
RS232 communication cable interface
4 pin trigger and remote sensing connector
USB communication cable interface

Setup Guide

To set up the iTECH DC Programmable Electronic Loads IT8500 plus, follow these steps:

Unpacking and Inspection: Carefully unpack the unit and inspect for any damage during shipping.
Power Connection: Connect the device to a suitable power source as per the manufacturer's guidelines.
Signal Connections: Connect the load terminals to the DC source under test, ensuring proper polarity.
Communication Setup: Connect the device to a computer or other control systems via USB, RS232, LAN, or GPIB.
Software Installation: Install the provided software on your computer to configure and operate the load.
Initial Configuration: Use the software to set up the desired load profile and parameters.

Troubleshooting

If you encounter issues with your iTECH DC Programmable Electronic Loads IT8500 plus, consider the following troubleshooting steps:

No Display or Power On: Check power connections and ensure that all cables are securely connected.
Inaccurate Readings: Calibrate the device according to the user manual or contact support for assistance.
Overheating Issues: Ensure proper ventilation around the device and check for blockages in cooling vents.
Communication Errors: Verify that communication interfaces are properly connected and configured.

Always refer to the user manual for detailed troubleshooting guides and safety instructions.

Pros & Cons

Pros

High Precision: Offers accurate load simulations with high resolution.
Advanced Safety Features: Includes OCP, OVP, and OTP protections for safe operation.
Scalable Design: Allows for easy expansion by adding more units in parallel.
Comprehensive Software Support: Facilitates easy configuration and integration into automated test systems.
Durable Construction: Built with robust materials to withstand heavy use.

Cons

High Cost: May be expensive for small-scale or budget-conscious users.
Complex Setup: Requires careful setup and configuration which can be time-consuming.
Space Requirements: Larger than some other electronic loads due to its modular design.
Technical Support Dependency: May require technical support for advanced configurations or troubleshooting.

Customer Reviews

Customers have praised the iTECH DC Programmable Electronic Loads IT8500 plus for its reliability and precision in load simulations. Many have noted that while it requires a significant investment, it provides unparalleled performance and flexibility in testing applications. However, some users have reported that the initial setup can be complex and may require additional technical support.

Common complaints include the high cost and the need for a significant amount of space due to its size. Despite these drawbacks, the overall consensus among users is that this device delivers high-quality results and is a valuable addition to any testing lab or engineering facility.

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