Datasheet

TEK.COM 7
DMM7512 Dual Channel 7½-Digit Sampling Multimeter
Resistance Open Circuit DC Voltage
27
Range
19
2-wire
Offset Compensation Off Offset Compensation On
4-wire 4-wire
1 Ω – 9.2 V 9.5 V
10 Ω 9.2 V 9.2 V 9.5 V
100 Ω, 1 kΩ 14.0 V 14.2 V 14.3 V
10 kΩ 9.5 V 9.5 V 9.5 V
100 kΩ, 1 MΩ 12.7 V 14.3 V 14.3 V (100 kΩ range only)
10 MΩ to 1 GΩ 6.9 V 6.9 V –
4-Wire Ohms (≤10kΩ) Offset Compensation On
RMS Noise (additional peak noise uncertainty)
28
Applies to ± ppm of range.
Peak noise uncertainty is included in DC specifications for ≥1 PLC.
Add peak noise uncertainty to measurements for <1 PLC.
Examples 1 kΩ at 0.006 PLC: 3 (from Accuracy table) + 26 (additional peak noise uncertainty) = 29 ppm of range.
1 kΩ at 1 PLC: 3 + 0 = 3 ppm of range.
NPLC Digits 1 Ω 10 Ω 100 Ω 1 kΩ 10 kΩ
5 7½ 2.8 0.3 0.3 0.07 0.3
1 7½ 4.2 0.4 0.4 0.12 0.5 (2)
0.2
29
6½ 30 (160) 3 (13) 3 (13) 0.4 (2.6) 1.2 (8.2)
0.2 6½ 50 (250) 5 (22) 5 (22) 0.6 (3.2) 1.2 (8.3)
0.06 5½ 115 (5 4 6) 11 (54) 12 (56) 1.1 (6.6) 3 (18)
0.006 4½ 397 (2144) 40 (215) 38 (216) 6 (34) 15 (78)
0.0005 3½ 1767 (9333) 177 (933) 183 (954) 85 (406) 89 (456)
2-Wire Ohms
RMS Noise (additional peak noise uncertainty)
28
Applies to ±ppm of range.
Peak noise uncertainty is included in DC specifications for ≥1 PLC.
Add peak noise uncertainty to measurements for <1 PLC.
Examples 10 kΩ at 0.006 PLC: 3 (from Accuracy table) + 5 (50 mΩ with Rel) + 43 (additional peak noise uncertainty)
= 51 ppm of range.
10 kΩ at 1 PLC: 3 + 5 + 0 = 8 ppm of range.
NPLC Digits 10 Ω 100 Ω 1 kΩ 10 kΩ
5 7½ 1.1 0.8 (0.4) 0.1 0.2
1 7½ 0.6 0.6 (0.4) 0.09 0.4 (0.45)
0.2
29
6½ 2 (17) 2 (10) 0.2 (1.5) 0.8 (6.3)
0.2 6½ 2 (17) 2 (14) 0.3 (1.6) 0.8 (6.4)
0.06 5½ 5 (29) 6 (32) 0.4 (3.7) 2 (12)
0.006 4½ 25 (114) 21 (119) 3 (21) 9 (50)
0.0005 3½ 103 (517) 109 (536) 56 (219) 55 (283)
NOTES
27. Open circuit voltage is typical, measured from input HI to LO, SHI and SLO open. For 1 Ω to 1 MΩ ranges using an external digital multimeter (DMM) set to 10 MΩ input impedance; for
10 MΩ to 1 GΩ ranges, set external DMM to >10 GΩ input impedance.
28. Noise values are based on 1000 readings with autozero on and using low thermal 4-wire short. RMS noise is typical. Additional peak noise is guaranteed.
29. With line sync on.