Datasheet
Datasheet
TEK.COM4
Specification Conditions
This document contains specifications and supplemental information for the DMM7512 7½ Digit Graphical Sampling Multimeter instrument.
Specifications are the standards against which the DMM7512 is tested. Upon leaving the factory, the DMM7512 meets these specifications.
Supplemental and typical values are nonwarranted, apply at 23 °C, and are provided solely as useful information. Measurement accuracies are
specified at the DMM7512 terminals under these conditions:
• Temperature 23 °C ±5 °C, 5% to 80 60% relative humidity, noncondensing
• After a 4-hour warmup period
• 1 PLC or 5 PLC; for NPLC settings less than 1 PLC, add appropriate ppm of range for peak noise uncertainty from the RMS noise table
• Autozero enabled unless otherwise noted
• Remote sense operation or properly zeroed local operation
• Calibration period: One year or two years (calibration period may vary depending on customer requirements)
• T
ACAL
= Ambient temperature of last automatic calibration
• T
CAL
= Ambient temperature of last external calibration; factory calibration performed at 23 °C ±1 °C
DC Voltage
Accuracy (Input impedance auto)
Range
1
Resolution
Input
Impedance
Accuracy ±(ppm of reading + ppm of range)
24 hour
T
CAL
±1 °C
2
90 day
T
CAL
±5 °C
1 year
T
CAL
±5 °C
2 year
T
CAL
±5 °C
Temperature
Coefficient
3
100.00000 mV
4
10 nV
> 10 GΩ or
10 MΩ ±1%
6 + 30 12 + 30 18 + 30 29 + 30 0.1 + 2.5
1.0000000 V
4
100 nV
> 10 GΩ or
10 MΩ ±1%
4 + 2 9 + 5 15 + 5 26 + 5 0.1 + 0.5
10.000000 V
4
1 µV
> 10 GΩ or
10 MΩ ±1%
2 + 0.7 9 + 1.2 14 + 1.2 22 + 1.2 0.1 + 0.05
100.00000 V
4
10 µV 10 MΩ ±1% 8 + 6
(18 + 15)
5
(22 + 15)
5
(30 + 15)
5
(0.15 + 0.1)
5
35 + 15 40 + 15 45 + 15 2.0 + 1
1000.0000 V
4, 6
100 µV 10 MΩ ±1% 8 + 6
(19 + 10)
5
(23 + 10)
5
(31 + 10)
5
(0.15 + 0.1)
5
35 + 10 40 + 10 45 + 8 2.0 + 1
NOTES
1. 20% overrange on all ranges except 1% for 1000 V range.
2. Relative to calibration accuracy.
3. Add per degree from T
CAL
± 5 °C.
4. When properly zeroed using the Rel function with external cables.
5. Specified within 30 days of autocalibration, T
OPER
± 5 °C from T
ACAL
.
6. For signal levels greater than 500 V, add 0.02 ppm/V to the ppm of the readings specification for measurements exceeding 500 V.