Operation Manual

Elma BM869 side 50
Fuses use:
BM867 models:
Fuse (FS1) for µAmA current input: 1A/600Vac, IR 10kA or better, F fuse;
Fuse (FS2) for A current input: 10A/600Vac, IR 100kA or better, F fuse
BM869 models:
Fuse (FS1) for µAmA current input: 0.44A/1000Vac & Vdc, IR 10kA or better, F fuse;
Fuse (FS2) for A current input: 11A/1000Vac & Vdc, IR 20kA or better, F fuse
Battery replacement:
Loosen the 2 screws from the battery access door of the case bottom. Lift the battery
access door and thus the battery compartment up. Replace the battery. Re-fasten the
screws.
Fuse replacement:
Loosen the 4 screws from the case bottom. Lift the end of the case bottom nearest the
input jacks until it unsnaps from the case top. Replace the blown fuse(s). Replace the case
bottom, and ensure that all the gaskets are properly seated and the two snaps on the case
top (near the LCD side) are engaged. Re-fasten the screws.
GENERAL SPECIFICATION
Display: 4-4/5 digits 50,000 counts fast mode. Selectable stable mode 5-
4/5 digits 500,000 counts for DC Voltage, & 5 digits 99,999 counts
for Hz
Polarity: Automatic
Update Rate:
4-4/5 digits fast mode: 5 per second nominal;
5-4/5 digits stable mode: 1.25 per second nominal;
41 Segments
Bar graph: 60 per second max
Operating Temperature: 0°C to 45°C
Relative Humidity: Maximum relative humidity 80% for temperature up to 31°C
decreasing linearly to 50% relative humidity at 45°C
Pollution degree: 2
Storage Temperature: -20°C to 60°C, < 80% R.H. (with battery removed)
Altitude: Operating below 2000m
Temperature Coefficient: nominal 0.15 x (specified accuracy)/ °C @(0°C ~ 18°C or 28°C
~ 45°C), or otherwise specified
Sensing: AC, AC+DC True RMS
Safety: Double insulation per IEC61010-1 2nd Ed., EN61010-1 2nd Ed.,
UL61010-1 2nd Ed. & CAN/CSA C22.2 No. 61010.1-0.92 to
Category IV 1000V AC & DC