Brymen BM885 User Manual page 12

11
Lock-Test mode is recommended for continuous measurements. To apply, press
the LOCK button momentarily to display the annunciator before pressing the
TEST button momentarily. The LCD will show both & to indicate
continuous measurement is active. Press again either button momentarily to release
the Lock-Test mode.
NOTE: Maximum display reading of each Insulation Resistance range is subjected to
the test voltage selected. They are 55.0MΩ, 110.0MΩ, 275MΩ, 550MΩ & 25.0GΩ for
50V, 100V, 250V, 500V & 1000V respectively. Over-range is indicated as > maximum-
display-reading.