BT751 is a portable insulation meter designed for electrical installer to perform insulation resistance measurements with test voltage up to 1000VDC, 600V voltage measurements and continuity test of earth conductors, on civil and industrial electrical environments.

And other special features are LOCK function, adjustable timer and large LCD backlight display. The LOCK function can perform a continuous insulation measurement to the device under test. Adjustable timer from 2s to 60s permits users to decide the duration of the measurements. Its large LCD display with backlight function enable user to work in weak/dim light environment.

Features:

Ÿ- 4 Digits LCD display with maximum 9999 counts reading and symbol

Ÿ- Function keys: ZERO、TEST、LOCK。

Ÿ- Continuity Test

Ÿ- Insulation resistance

Ÿ  250V: 4M ~ 1000M Ohm

Ÿ  500V: 4M ~ 2000M Ohm

Ÿ  1000V: 4M ~ 4000M Ohm

Ÿ- DC voltage:0.1V~600V

Ÿ- AC voltage:0.1V~600V

Ÿ- Low battery indication

Ÿ- Auto power off

Ÿ- Auto discharge

Ÿ- Conforms to EN61557 and EN61010-1 CAT III 1000V/ CAT IV 600V safety standard

Technical Specification:

Accuracies are ± (% of reading + number of least significant digits), at 23 ±5℃, less than 70%RH 

AC voltage measurement

Crest Factor:√2

DC voltage measurement

Continuity Test

Buzzer sound when resistance <30 OHM

LO Ohm : 200mA Continuity of protection conductors

Test current: >200mA DC up to 5OHM (measuring cables resistance included)

Test current: >45mA DC over 5OHM  (measuring cables resistance included)

Open circuit voltage: 4 < V₀ < 24V

M Ohm : Insulation resistance (Auto Range)

AutorangeOpen circuit voltage: <1.3 x V₀

Accuracy of nominal voltage: –0% +10%

Short circuit current: <3.0mA

Nominal testing current: 1mA @ 1KW x V (1mA @ 500KΩ)

General Specification: