Datasheet

TEK.COM 13
DMM7512 Dual Channel 7½-Digit Sampling Multimeter
Digitizer Characteristics
Maximum Resolution 18 bits.
Measurement Input Coupling DC or AC (voltage only).
Sampling Rate
54
Programmable 1 k through 1 million.
Volatile Sample Memory with Timestamp
27.5 million.
Minimum Record Time 1 µs.
Timestamp Resolution 1 ns with standard or full buffer style. 1 µs with compact buffer style.
Timestamp Accuracy With standard or full buffer style, 20 ns between adjacent readings, with total buffer time <2 s.
With compact buffer style, 2 µs adjacent readings, with total buffer buffer time <2 s.
Maximum Record Length 8 million.
Typical Reading Rates, 60 Hz (50 Hz) Operation
55, 56, 57, 58
NPLC Digits
Functions:
DC Voltage (10 V),
2-wire Ohms (≤10 kΩ),
DC Current (1 mA)
Functions:
4-wire ohms (≤1 kΩ),
4-wire/3-wire RTD
Functions:
Thermistor
Functions:
Dry Circuit (≤1 kΩ)
Measurements
Into Buffer
Measurements
Into Computer
Measurements
Into Buffer
Measurements
Into Computer
Measurements
Into Buffer
Measurements
Into Computer
Measurements
Into Buffer
Measurements
Into Computer
1 7½ 59.8 (49.8) 58 (48) 29 (24) 28 (24) 57 (48) 57 (48) 27 (23) 26 (22)
0.2 6½ 295 (240) 250 (210) 128 (109) 119 (10 0) 230 (200) 230 (200) 100 (89) 96 (85)
0.06 5½ 965 (810) 950 (800) 310 (280) 315 (280) 900 (750) 900 (750) 190 (180) 190 (180)
0.006 4½ 7500 (6700) 7300 (6500) 750 (730) 740 (720) 6800 (6000) 6800 (6000) 295 (290) 295 (290)
0.0005 3½ 26000 (26000) 24000 (24000) 860 (860) 860 (860) 18000 (18000) 18000 (18000) 310 (310) 310 (310)
Digitize, Typical
Sampling Rate Digits Resolution
Measurements Into
Computer
58
10 kS/s 5½ 18 9700
20 kS/s 4½ 16 19000
50 kS/s 4½ 16 44400
100 kS/s 4½ 15 80000
1 MS/s 3½ 12 108000
NOTES
54. Sample rate is not continuously adjustable. For valid discrete settings, see the DMM7512 Reference Manual.
55. Reading speeds for autozero off, fixed range, autodelay off. Offset compensation off and open lead detector off where applicable.
56. Buffer measurements: For <0.2 PLC, multisample, single buffer transfer binary reading only.
57. PC measurements: For 1 and 0.2 PLC single reading and single transfer to computer (USB).
58. Reading rates using factory default operating conditions and autorange off, autodelay off. Speeds include measurement and data transfer out of the USB. ≥1000 readings with binary
transfer over USB.