# 3403C Agilent Voltmeter Used

**Additional Features:**

-   DC and 2 Hz to 100 MHz
-   3 1/2 Digit

**Specifications:**

**Ranges**

-   Full range display: 10.00 mV (ac only); 100.0 mV; 1.000 V; 10.00 V; 100.0 V; 1000 V
-   Overrange: >90% on all ranges except as limited by max input voltage
-   Ranging information: front panel annunciators indicate overrange (approximately 190 % of full range), or underrange (approximately 17 % of full range) conditions

**Performance:**

**AC Frequency Range**

-   Slow response: 2 Hz to 100 MHz
-   Fast response: 25 Hz to 100 MHz
-   Response Time Fast response: 1 s
-   Slow response: 10 s; Instrument reads final reading ± 0.1% of input change in stated response time

**Display Rate**

-   Fast response: 4 readings per s
-   Slow response: 2 readings per s

**Functions**

-   DC: responds to de component of input signal
-   AC: responds to true rms value of ac coupled input signal
-   AC+ DC: responds to true rms value of dc and ac input signal; reading is √(dc)2 + (ac rms)2
-   Temperature coefficient: ± (0.1 x reading accuracy/°C) outside the 25°C ± 5°C temperature range
-   Accuracy: 90 days (25°C + 5°C, < 95% RH, 17% of range to 190 % of range)

**Input Characteristics**

-   Input impedance: (< 10 MHz)
-   1 V to 1000 V range: 10 MΩ ± 10% shunted by 24 pf ± 10%
-   10 mV and 100 mV range: 20 MΩ ±l0% shunted by 20 pF ± 10%

**Maximum Input Voltage**

-   High to low: 1000 V rms, 1500 peak or 108 V-Hz on any range
-   Maximum dc voltage in ac mode: 500 V dc
-   Low to chassis:  ± 500 V dc, when floated with special banana to BNC adapter

**General:**

-   Operating Conditions 
-   Temperature range: 0°C to 50°C
-   Humidity: <95% RH
-   Power: 115 V or 230 V ± 10%, 48 Hz to 440 Hz, 35 VA max. (including all options) 
-   Input terminals: BNC front panel connector standard for low to high terminals: rear panel connector available by internally reversing position of ac converter module

**Recorder Output**

-   Output voltage: 1 V dc open circuit for full range input
-   Output resistance: 1 kV =- 10%

The Model 3403C is usable from dc to 100 MHz. True rms is especially valuable for measurements of noise, multiplexed signals, modulated waves and signals with high harmonic content.

**dB Display**

The dB display option provides readings directly in dB, a major convenience to ac users. The dB reference to which the measurement is made is conveniently adjustable from the front panel to provide referenced dB measurements, or to provide a convenient means to offset the reading by as much as 13 dB for unreferenced measurements.

## Details

- **Price:** 0.0 USD
- **Vendor:** Agilent
- **Type:** Volt Met
- **Tags:** Agilent, Agilent Keysight, Manufacturers, Meters & DAQ, product_manual_group_1, Product_used, Voltmeter

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 0.00 USD | In stock |

## Images

- 3403C Agilent Voltmeter Used

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> Source: [ValueTronics](https://valuetronics.com/products/3403c-agilent-voltmeter-used)
> Updated: 2026-05-21