HP HP34401A Скачать руководство пользователя страница 5

T A K I N G   M E A S U R E M E N T S  

3

 

Figure 3

. Probe/Meter placement 

on the circuit to Measure Voltage 

Across Resistor R 

Circuit under Test

 

Hi 

DMM 

 

Lo 

How to Measure DC and AC 
Voltage 

To measure a voltage, connect the probes to the 

HI

 and 

LO

 input terminals of the DMM.  In 

order to activate the DMM for voltage measurements, select either the 

AC V

 or 

DC V

 button 

on the front panel (Figure 2). 

 

 

Next, connect the leads of the probes to 
the circuit in parallel with the location of 

the voltage in question (Figure 3).  The 

Hi

 lead connects to the “+” (pos) part of 

the circuit and the 

Lo

 to the “–“ (neg). If 

these are reversed, a negative value for the 

voltage is obtained.   

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION

Do not exceed the maximum allowable voltage input (1000V DC). Also, 

never apply a voltage over the current input terminal (I) of the DMM. 

 

 

Section 

FUNCTION 

MATH  

DISPLAY 

DC I 

AC I 

 4W 

Period

dB 

dBm 

DC V 

AC V 

 2W

 

Freq 

Cont 

Null 

Min/Max 

HI 

HI 

LO 

LO 

 

4W Sense

Shift 

Select DC V or AC V 

AC or Dc Voltage 

Figure 2

. How to Measure Voltage 

Содержание HP34401A

Страница 1: ...GEORGIA INSTITUTE OF TECHNOLOGY User s Guide HP34401A Digital Multimeter Brian Brown ...

Страница 2: ...T I O N 1 Setting Up the HP34401A 2 Overview of the Controls 2 S E C T I O N 2 How To Measure DC AC Voltage 3 How To Measure DC AC Current 4 How To Measure Resistance 5 How To Measure Frequency 5 S E C T I O N 3 Trouble Shooting 6 Where to Find More Help 6 References 6 ...

Страница 3: ...elp section Features he HP34401A is setup for bench top use with AC power supply It performs at 1000 readings sec and has a 6 digit display The HP34401Awillautomaticallyadjustthe range to the characteristic being measured It is also extremely accurate 0 0015 error for DC 0 06 for AC Specifications Function Range For accuracy specifications consult the full manual DC Characteristics DC Voltage Rang...

Страница 4: ...er this is complete the HP34401A is ready to perform measurements Overview of Controls The front panel has two rows of keys for selecting the functions The right side of the panel contains various probe input locations of which the selection is dependent upon the characteristic being measure Figure 1 The selection keys are annotated in black and blue To select a function in blue first select the b...

Страница 5: ...onnect the leads of the probes to the circuit in parallel with the location of the voltage in question Figure 3 The Hi lead connects to the pos part of the circuit and the Lo to the neg If these are reversed a negative value for the voltage is obtained CAUTION Do not exceed the maximum allowable voltage input 1000V DC Also never apply a voltage over the current input terminal I of the DMM Section ...

Страница 6: ...ls Figure 4 To measure the current either the DC I or AC I keymustbe selected by pushing SHIFT and DC V or AC V button Next connect the leads of the probes to the circuit in series with the location of the current in question Figure 5 The current I lead connects to the pos part of the circuit and the Lo to the neg If these are reversed a negative value for the current is obtained CAUTION Do not ex...

Страница 7: ... VΩ and LO Select the frequency measurement function by pushing the Freq button on the front panel as shown below in Figure 8 The meter is connected in parallel the same as taking a resistance measurement Figure 7 Figure 6 How to Measure Resistance Figure 7 Probe Meter Placement to Measure Resistance Across Resistor R Hi Ω DMM Lo FUNCTION MATH DISPLAY DC I AC I Ω 4W Period dB dBm DC V AC V Ω 2W Fr...

Страница 8: ...in the probe input panel to left of the current I input The probe inputs are correct but when the meter is connected to the circuit the meter reads invalid values or does not read at all Check that the meter is connected to the circuit in the correct orientation It must be connected in series for current readings and in parallel for voltage frequency and resistance Check back in the Making Measure...

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