TB 9-6625-2107-24
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CALIBRATION PROCESS FOR HEWLETT
PACKARD, MODELS 400F AND 400FL
Preliminary instructions .......................................
Equipment setup ...................................................
Range accuracy and stability ................................
Frequency response ...............................................
Final procedure......................................................
IDENTIFICATION AND DESCRIPTION
This bulletin provides instructions for the
1. Test Instrument Identification.
calibration of Ac Voltmeter, ME-30F/U and Hewlett-Packard, Models 400F and 400FL. The
manufacturers' manuals were used as the prime data sources in compiling these
instructions. The equipment being calibrated will be referred to as the TI (test instrument)
throughout this bulletin.
a. Model Variations. Variations among models are described in text.
b. Time and Technique. The time required for this calibration is approximately 1
hour, 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.
Table 1. Calibration Description
Test instrument parameters
Performance specifications
ME-30F/U
Power input requirements
115 or 230 V ac, 50 to 400 Hz
Ac voltage ranges (12)
1 mV to 300 V
% FS
Accuracy
Frequency response
(3 mV to 300 V ranges)
10 to 40Hz
40 Hz to 2 MHz
2 to 4 MHz
4 to 10 MHz
5%
1%
3%
5%
