TB 9-6625-2341-24
IDENTIFICATION AND DESCRIPTION
This bulletin provides instructions for the
1. Test Instrument Identification.
calibration of ScopeMeter, Fluke, Model 105B. The manufacturer's manual was used as the
prime data source in compiling these instructions. The equipment being calibrated will be
referred to as the TI (test instrument) throughout this bulletin.
a. Model Variations. None
b. Time and Technique. The time required for this calibration is approximately 4
hours, using the dc and low frequency technique.
2. Forms, Records, and Reports
a. Forms, records, and reports required for calibration personnel at all levels are
prescribed by TB 750-25.
b. Adjustments to be reported are designated (R) at the end of the sentence in which
they appear. When adjustments are in tables, the (R) follows the designated adjustment.
Report only those adjustments made and designated with (R).
3. Calibration Description. TI parameters and performance specifications which
pertain to this calibration are listed in table 1.
Test instrument
Performance specifications1
parameters
Vertical
Range: 5 mV/Div to 100 V/Div
Accuracy: (2% setting +1 pixel)
-3 db down from dc to 100 MHz
10 MHz 1.4 div
Trigger sensitivity:
100 MHz 2.1 div
150 MHz 2.9 div
Time base
Range: 5 ns/div to 1 s/div
Accuracy: (0.08% +1 pixel)
Dc volts
Range: 100 mV, 300 mV, 1, 3, 10, 30, 100, and 300 V
Accuracy: (0.5% +5 counts)
Ac volts
Range: 100 mV, 300 mV, 1, 3, 10, 30, 100, and 250 V
Accuracy:
50 to 60 Hz
(1% +10 counts)
20 Hz to 20 kHz
(2% +15 counts)
5 Hz to 1 MHz
(3% +20 counts)
5 Hz to 5 MHz
(10% +25 counts)
Ext.mV dc volt
Range: 300 mV, 3 V
Accuracy: (0.5% +5 counts)
Ext.mV ac volt
Range: 300 mV, 3 V
Accuracy: 50 and 60 Hz, (2% +15 counts)
See footnote at end of table.