Equus 3340 - Automotive DMM (10 MegOhm / UL) - Manual (Page 8)

FREQUENCY
DUTY CYCLE/PULSE WIDTH/DWELL
RPM
7
E
Range Resolution Accuracy Overload Protection
9.999Hz- 0.001Hz ± (0.1% of
2MHz reading 250V DC or AC RMS
+ 5 digits)
Sensitivity: <100kHz: 2V RMS; >100kHz: 5V RMS
Function Range Accuracy Overload Protection
Duty Cycle 0.1 to ± (2.0% of
99.9% reading
+ 5 digits)
Pulse Width 1 to 999 ± (3.0% of 0.5A/250V fast fuse
ms positive reading
± 2 ms)
Dwell Angle 1-12 ± (2.0% of
cylinders reading
+ 5 digits)
Range Resolution Accuracy Overload Protection
0-10000 1RPM ± (2.0% of
RPM reading 0.5A/250V fast fuse
+ 5 digits)
Frequency response: 50 - 400Hz
WARNING
Risk of Explosion. This equipment has internal arcing and
sparking parts, which should not be exposed to flammable
vapors. This equipment is only suitable for installation in a
garage having sufficient air circulation to be considered a
non-hazardous location.
WARNING
Ignition coils produce a very high voltage. To reduce the risks
of electric shock when conducting RPM tests, DO NOT touch
the uninsulated ends of the test probes, the ignition coil, or
the coil terminals when the engine is running.