This document introduces the sales and service information of Agilent Technologies, a subsidiary of Hewlett-Packard.
This Service Manual for the HP 3457A Multimeter includes essential safety precautions, warranty terms, and certification details. It also contains the printing history, contact information for Agilent (the successor to HP's test‑and‑measurement business), and regulatory compliance statements.
The latter part of the manual offers step‑by‑step calibration procedures for DC current, voltage, and resistance ranges, along with wiring block preparation instructions for related accessories.
| DC Current measurement ranges | 300 µA, 3 mA, 30 mA, 300 mA, 3 A |
|---|---|
| DC Voltage measurement ranges | 300 V, 30 V, 3 V, 300 mV, 30 mV |
| 2‑Wire Ohms measurement ranges | 30 MΩ, 3 MΩ, 300 kΩ, 30 kΩ, 3 kΩ, 300 Ω |
The instrument is warranted for one year from the date of shipment.
The instrument chassis and cabinet must be connected to an electrical ground.