ES3045 Series Insulation Resistance Tester

Digital Insulation Resistance Tester · Megohmmeter · 15KV · 50TΩ · 6mA

The ES3045 series insulation resistance tester, also known as a megohmmeter or high-voltage insulation resistance tester, is used for insulation resistance measurement. This instrument features a large LCD screen with gray-white backlight display, data storage, data review, alarm, and auto power-off functions. It also measures DC voltage, AC voltage, absorption ratio, and polarization index. The instrument is elegantly designed with a wide range, high resolution, easy operation, and portability. It is accurate, reliable, stable in performance, and has strong anti-interference capability. With its shockproof, dustproof, and moisture-proof structure, it is suitable for measuring the resistance values of various insulating materials and the insulation resistance of transformers, motors, cables, and electrical equipment.

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Features

DC Voltage Range 0～1000V Resolution: 0.1V

AC Voltage Range 0～750V Resolution: 0.1V

DC Current 0.1nA～6mA Resolution: 0.1nA

Capacitance 10nF～50uF Resolution: 10nF

Absorption Ratio & Polarization Index Available

Ramp Test Target voltage increases in 10% steps to final target voltage

USB Interface Has USB interface for software monitoring, data upload to PC, save and print

Data Storage 500 data sets

Test Leads High-voltage rod red 3m, high-voltage test lead black 1.5m, green 1.5m

Detail Images

Specifications

Function	Insulation resistance test, voltage test, DC current test, capacitance test
Reference Condition	23℃±5℃, below 75% rh
Test Voltage (V)	Rated voltage × (1±10%)
DC Voltage Range	0～1000V Resolution: 0.1V
AC Voltage Range	0～750V Resolution: 0.1V
DC Current	0.1nA～6mA Resolution: 0.1nA
Capacitance	10nF～50uF Resolution: 10nF
Output Short-Circuit Current	≥6mA (15KV)
Absorption Ratio & Polarization Index Measurement	Available
Filter Test	10S 20S 30S 40S 50S
Ramp Test	Target voltage increases in 10% steps to final target voltage
Power Supply	12.6V rechargeable lithium battery
Backlight	Controllable gray-white screen backlight, suitable for dim environments
Display Mode	4-digit extra-large LCD display, gray-white screen backlight
LCD Display Size	108mm × 65mm
Instrument Dimensions	L×W×H: 240mm × 188mm × 85mm
USB Interface	Has USB interface for software monitoring, data upload to PC, save and print
Communication Cable	1 USB communication cable
Test Leads	High-voltage rod red 3m, high-voltage test lead black 1.5m, green 1.5m
Data Storage	500 data sets, "FULL" symbol indicates storage is full
Data Review	Data review function: "MR" symbol display
Overflow Display	Over-range overflow function: ">" symbol display
Alarm Function	Alarm prompt when value exceeds or falls below the set threshold
Power Consumption	Standby: 30mA Max (backlight off), Power on with backlight: 42mA Max, Measurement: 200mA Max (backlight off)
Instrument Weight	2750g (including battery)
Battery Voltage	Low battery symbol displayed when battery voltage is insufficient
Auto Power Off	Automatically powers off after 15 minutes of inactivity
Insulation Resistance	≥50MΩ (between measurement circuit and housing)
Withstand Voltage	AC 3kV/50Hz 1min
Operating Temperature & Humidity	-10℃～+50℃, below 85% RH
Storage Temperature & Humidity	-15℃～+55℃, below 90% RH
Applicable Safety Standards	IEC61010-1, IEC1010-2-31, IEC61557-1,5, IEC60529 (IP54), Pollution Degree 2, CAT Ⅲ 300V

Model Comparison

Model	ES3045	ES3045E	ES3045F
Rated Voltage	100V, 250V, 500V, 1000V, 2500V, 5000V	250V, 500V, 1000V, 2500V, 5000V, 10KV	500V, 1000V, 2500V, 5000V, 10KV, 15KV
Insulation Resistance Range	0.01MΩ～10TΩ	0.01MΩ～35TΩ	0.01MΩ～50TΩ
Resolution	0.01MΩ	0.01MΩ	0.01MΩ

Product Accessories

Instrument	1 unit
High-Voltage Rod	1 pc (red)
High-Voltage Test Leads	2 pcs (black, green × 1 each)
Monitoring Software CD	1 pc
USB Communication Cable	1 pc
Charger	1 pc
User Manual / Warranty Card	1 set
Instrument Case	1 pc