User guide
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Each digit indicates the following status: 
G. BATTERY REPLACEMENT 
When the top left corner of LCD display indicates "LBT," it is time to 
replace the battery. Accurate readings may be taken for several hours 
after the low battery indicator appears. Open the battery cover, install a 
fresh 9V battery and replace the cover. 
H. OPTIONAL ACCESSORIES 
850080 Software 
840094 RS232 to USB Adaptor Cable 
840055 RS232 cable 48" required for use w/software 
840090 Water Resistant Instrument Pouch 
I. CLASSIFICATION RANGES 
There are 4 different machine groups with 4 classification ranges and 
limits for ISO 2372 and VDI 2056, machinery. 
DO  End Word 
D1 to D4  Upper Display reading, D1=LSD, D4=MSD 
D5 to D8  All "?" (?, ?, ?, ?) 
D9  Decimal Point(DP), position from right to the left 
0 = No DP, 1 = 1 DP, 2 = 2 DP, 3 = 3 DP 
D10 to D14  All Zeros (0, 0, 0, 0, 0) 
D15  Start Word 
RS232 FORMAT: 9600, N, 8, 1 
GROUP K: Small machines, especially production electrical motors 
of up to 15 KW. 
Good  0 ~ 0.71 mm/s 
Acceptable  0.72 ~ 1.80 mm/s 
Still permissible  1.81 ~ 4.5 mm/s 
Dangerous  > 4.5 mm/s 
Good  0 ~ 1.12 mm/s 
Acceptable  1.13 ~ 2.80 mm/s 
Still permissible  2.81 ~ 7.1 mm/s 
Dangerous  > 7.1 mm/s 
GROUP M: Medium sized machines, especially electrical motors 
with 15 to 75 KW output, without special foundations. 








