TB 9-6625-140-24
Table 1. Calibration Description - Continued
Test instrument
Performance specifications
parameters
RPM IG
RPM
Range: 60 to 12,000 RPM
Accuracy: 2 RPM
Duty Cycle
Range: 0.0 to 99.9%
Accuracy: 2% per kHz, +0.1%
Dwell
Range: 0.0 to 356.4 degrees
Accuracy: Pulse width > 0.5 mS
Pulse Width
Range: 0.2 to 199.9 mS
Accuracy: 2% per kHz, +0.1% 1 digit
Range: 1 Hz to 1999.9 Hz
Accuracy: 0.05% of reading, 2 digits
RPM IP
Range: 60 to 12,000 RPM
Accuracy: 2 RPM
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set AN/GSM-286; AN/GSM-287; and AN/GSM-705. Alternate items may be
used by the calibrating activity. The items selected must be verified to perform
satisfactorily prior to use and must bear evidence of current calibration. The equipment
must meet or exceed the minimum use specifications listed in table 2. The accuracies listed
in table 2 provide a four-to-one ratio between the standard and TI. Where the four-to-one
ratio cannot be met, the actual accuracy of the equipment selected is shown in parentheses.
5. Accessories Required. The accessories required for this calibration are common
usage accessories issued as indicated in 4 above, and are not listed in this calibration
procedure.
