SECTION I IDENTIFICATION AND DESCRIPTION

TB-9-6625-2297-35 Power Meter Hewlett-Packard Model 437B Manual
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TB 9-6625-2297-35

SECTION I

IDENTIFICATION AND DESCRIPTION

1. Test Instrument Identification.

This bulletin provides instructions for the

calibration of Power Meter, Hewlett-Packard, Model 437B. 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 2

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. 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

Zero set (digital set

0.5% FS (Most sensitive range. Decrease percentage factor of 10 for each higher

ability of zero)

range 1 count)

Instrument accuracy

Range: 3 W to 100 mW

single channel mode

Accuracy:1 0.5% or 0.2 dB (within same calibration range)

Reference frequency

Frequency: 50 MHz

Accuracy: 0.5 MHz

Power reference

Range: 1 mW

Accuracy: 1.2%

Frequency: 50 MHz

includes sensor linearity. When operating in ranges 4 or 5 add the corresponding sensor power linearity

percentage.