U1251A Agilent Technologies Test Equipment, U1251A Datasheet - Page 4
U1251A
Manufacturer Part Number
U1251A
Description
Handheld Digital Multimeter, 50, 000 Count Dual Display, 4.5 Digit Resolution
Manufacturer
Agilent Technologies Test Equipment
Datasheet
1.U1253A.pdf
(12 pages)
Specifications of U1251A
Battery Life
72 hours typical
Capacitance
10 nF to 100 mF
Current, Range
500 μA to 10 A
Dimensions
203.5 × 94.4 × 59.0 mm
Display Type
5 Digit LCD dual display
Frequency Range
99.999 Hz to 999.99 kHz
Impedance, Input
10 MOhm
Power Consumption
105/420 (with backlight) mVA
Resistance, Range
500 Ω to 500 MΩ
Voltage, Range, Ac
50 mV to 1000 V
Voltage, Range, Dc
50 mV to 1000 V
Weight
504 g (with battery)
U1251A/U1252A TEMPERATURE SPECIFICATIONS
U1253A TEMPERATURE SPECIFICATIONS
[1] Input impedance: >1 GW for 50 mV~1000 mV ranges. For U1251A, input impedance is 10 MW (nominal) for 5 V~1000 V ranges. For U1252A/3A, input impedance
[2] The accuracy could be 0.05% + 10 for U1251A and 0.05% + 5 for U1252A/3A. Always use the NULL function to zero out the thermal effect before measuring the signal.
[3] The accuracy of 500 W and 5 kW is specifi ed after NULL function, which is used to subtract the test lead resistance and the thermal effect.
[4] For the range of 50 MW and 500 MW, the R.H. is specifi ed for <60%.
[5] The accuracy is specifi ed for <50 nS and after NULL function with open test lead.
[6] Always use the NULL function to zero out thermal effect with open test lead before measuring the signal. If the NULL function is not used, an additional 20 counts
[7] Current can be measured up to 10 A continuously. An additional 0.5% needs to be added to the specifi ed accuracy if the signal measured is in the range of 10 A~20 A
DC SPECIFICATIONS
FUNCTION
VOLTAGE
RESISTANCE
CURRENT
DIODE TEST
THERMOCOUPLE
THERMOCOUPLE
• Wrong operation to measure the high voltage of 50 V ~ 1000 V for resistance, diode, and mV measurements.
• After battery-charging has completed.
• After measuring a current greater than 440 mA, it is suggested that the meter be left to cool down for twice the measuring time used.
is 10 MW (nominal) in parallel with 1.1 MW at dual display.
needs to be added to the DC current accuracy. Thermal effect could occur due to the following:
for 30 seconds maximum. After measuring a current of > 10 A, leave the meter to cool down for twice the measuring time used before application of low current
measurement.
(for U1252A)
TYPE
TYPE
K
J
K
J
(1)
–200 ~ 1372 ºC
–210 ~ 1200 ºC
–200 ~ –40 °C
–210 ~ –40 °C
–40 ~ 1200 °C
–40 ~1372 °C
50.000 MW
500.00 MW
5.0000 kW
500.00 nS
5.0000 MW
50.000 mA
440.00 mA
50.000 mV
500.00 mV
1000.0 mV
500.00 W
10.000 A
50.000 kW
500.00 kW
500.00 µA
5000.0 µA
5.0000 V
50.000 V
500.00 V
1000.0 V
5.0000 A
RANGE
ºC
ºC
-
[7]
[3]
[5]
[3]
[4]
[4]
RANGE
RANGE
RESOLUTION
0.0001 MW
0.0001 kW
0.001 MW
0.001 mV
0.001 mA
0.001 kW
0.0001 V
0.01 MW
0.0001 A
–328 ~ 2502 ºF
–346 ~ 2192 ºF
0.01 mV
0.01 mA
0.01 kW
–104 ~ –40 °F
–346 ~ –40 °F
0.001 V
0.01 nS
0.01 µA
0.001 A
–40 ~ 2502 °F
–40 ~ 2192 °F
0.1 mV
0.1 mV
0.01 W
0.1 µA
0.01 V
0.1 V
ºF
ºF
TEST CURRENT/
BURDEN VOLTAGE
0.06 V (100 W)
0.2 V (0.01 W)
0.4 V (0.01 W)
0.6 V (100 W)
0.09 V (1 W)
0.9 V (1 W)
1.04 mA
1.04 mA
41.2 µA
4.12 µA
416 µA
375 nA
187 nA
187 nA
187 nA
RESOLUTION
RESOLUTION
0.1 °C /0.1 °F
0.1 °C /0.1 °F
0.1 °C /0.1 °F
0.1 ºC/0.1 ºF
0.1 ºC/0.1 ºF
0.1 ºC/0.1 ºF
-
-
-
-
-
-
-
4
ACCURACY ± (% of reading + No. of Least Signifi cant Digit)
0.05 + 50
0.08 +10
0.1 + 5
0.2 + 5
U1251A
0.03 + 5
0.08 + 5
0.3 + 10
0.2 + 5
1 + 10
1 + 20
N/A
0.3% + 3 ºC
0.3% + 3 ºC
1% + 3 °C
1% + 1 °C
1% + 3 °C
1% + 1 °C
[6]
[6]
ºC
ºC
[2]
0.05 + 5
ACCURACY
ACCURACY
3+10 < 200 MW / 8+10 > 200 MW
U1252A/3A
0.05 + 50
0.05 + 5
0.15 + 5
0.025 + 5
0.05 + 10
0.03 + 5
0.05 + 5
0.3 + 10
0.15 +5
0.3 + 5
1% + 5.4 °F
1% + 1.8 °F
1% + 5.4 °F
1% + 1.8 °F
1 + 10
0.3% + 6 ºF
0.3% + 6 ºF
1 + 5
ºF
ºF
[6]
[6]
[2]