34405A Agilent Technologies Test Equipment, 34405A Datasheet - Page 3

• Manufacturer Part Number: 34405A
• Description: Digital Multimeter, 5 1/2 Digit Resolution, Dual Display, Benchtop
• Manufacturer: Agilent Technologies Test Equipment

DC VOLTAGE
Measuring Method:
Input Resistance:
Input Protection:
RESISTANCE
Measuring Method:
Open-circuit voltage:
Input Protection:
DC CURRENT
Shunt Resistance:
Input Protection:
CONTINUITY/DIODE TEST
Measuring Method:
Response Time:
Continuity Threshold:
Input Protection:
TEMPERATURE
Measurement Method:
Input Protection:
MEASUREMENT NOISE REJECTION
CMRR (Common Mode Rejection) for 1k unbalance LO lead
NMR (Normal Mode Rejection)
SUPPLEMENTAL MEASUREMENT SPECIFICATIONS
FUNCTION
DCV, DCI
ACV, ACI
FREQUENCY
[1] Reading rate of the A/D converter.
[2] Time to change from 2-wire resistance to this specified functions and to take at least one reading in 4.5 digit using the SCPI “FUNC” and “READ?” commands.
[3] Time to change one range to the next higher range and to take at least one reading in 4.5 digit using the SCPI “FUNC” and “READ?” commands.
[4] Time to automatically change one range and to take at least one reading in 4.5 digit using SCPI “CONF AUTO” and “READ?” commands.
[5] Number of measurements per second that can be read through USB using SCPI “ READ?” command.
[6] Reading rate depend on signal frequency > 10Hz.
OPERATING SPECIFICATIONS
Sigma Delta A-to-D converter
10M
1000V on all ranges
2-wire Ohms
Limited to < 5V
1000V on all ranges
0.1 to 10 for 10mA to 1.2A ranges
0.01 for 12A range
Front Panel
Internal
Uses 0.83mA 0.2% constant current source, < 5V open circuit voltage
70 samples/second with audible tone
10 fixed
1000V
2-wire Ohms measurement of 5k thermistor sensor (YSI 4407) with
computer conversion
Auto-ranging measurement, no manual range selection
1000V
DC
AC
5 1/2 digit
4 1/2 digit
2% range (typical)
[6]
1.25A, 500V fuse for I terminal
15A, 600V fuse for 12A terminal
DIGITS
5 1/2
4 1/2
5 1/2
4 1/2
5 1/2
4 1/2
120 dB
70 dB
65 dB (55 dB)
0 dB
For 60 Hz (50Hz)
READING SPEED
15/s
70/s
2.5/s
2.5/s
9/s
9/s
0.1%
[1]
FUNCTION CHANGE
(sec)
0.6
5.0
7.0
[2]
AC VOLTAGE
Measurement Method:
Crest Factor:
Input Impedence:
Input Protection:
AC CURRENT
Measuring Method:
Shunt Resistance:
Input Protection:
FREQUENCY
Measurement Method:
Signal Level:
Gate Time:
Input Protection:
MATH FUNCTIONS
Null, dBm, dB, Min/Max/Avg, Hold, Limit Test
TRIGGER and MEMORY
Single trigger, 1 reading memory
REMOTE INTERFACE
USB 2.0 full speed, USBTMC class device (GPIB over USB)
PROGRAMMING LANGUAGE
SCPI, IEEE-488.1, IEEE-488.2
AC coupled true-RMS - measure the ac component with up to 400 Vdc bias any
range
Maximum 5:1 at full scale
1M
DC coupled to the fuse and current shunt, AC coupled true-RMS measurement
(measure the AC component only)
0.1 to 10 for 10mA to 1.2A range
0.1 for 12A range
Externally accessible 1.25A, 500V fuse for I terminal
Internally replaceable 15A, 600V fuse for 12A terminal
Reciprocal counting technique. AC coupled input using AC voltage function.
10% of range to full scale input on all ranges
Auto or manual range selection
0.1 second or 1 period of the input signal, whichever is longer.
750Vrms on all ranges
750Vrms on all ranges
2% in parallel with < 100pF of all ranges
RANGE CHANGE
(sec)
0.7
2.2
2.5
[3]
SYSTEM SPEED
AUTO RANGE
(sec)
2.2
6.1
6.1
[4]
READING SPEED
OVER USB
19/s
8/s
1/s
1/s
[5]
3