| Measurement Accuracy |
| Voltage DC |
30.000 V |
0.02% + 2 counts (upper display) |
| 20.000 V |
0.02% + 2 counts (lower display) |
| 100.00 mV |
0.02% + 2 counts |
| -10.00 mV to 75.00 mV |
0.025% + 1 count (via TC connector) |
| Current DC |
24.000 mA |
0.02% + 2 counts |
| Resistance |
0.0 to 400.0 Ω |
0.1 Ω (4-wire), 0.15 Ω (2- and 3-wire) |
| 401 to 1500 Ω |
0.5 Ω (4-wire), 1 Ω (2- and 3-wire) |
| 1500 to 3200 Ω |
1 Ω (4-wire), 1.5 Ω (2- and 3-wire) |
| Source Accuracy |
| Voltage DC |
100.00 mV |
0.02% + 2 counts |
| 10.000 V |
0.02% + 2 counts |
| -10.00 mV to 75.00 mV |
0.025 % + 1 count (via TC connector) |
| Resistance |
15.0 to 400.0 Ω |
0.15 Ω (exc. current 0.15 to 0.5 mA), 0.1 Ω (exc. current 0.5 to 2 mA) |
| 401 to 1500 Ω |
0.5 Ω (excitation current 0.05 to 0.8 mA) |
| 1500 to 3200 Ω |
1 Ω (excitation current 0.05 to 0.4 mA) |
| RTDs and Thermocouples |
| Measure accuracy |
NI-120 |
0.2°C |
| PT-100 (385) |
0.33°C |
| PT-100 (393) |
0.3°C |
| PT-100 (JIS) |
0.3°C |
| PT-200 (385) |
0.2°C |
| PT-500 (385) |
0.3°C |
| PT-1000 (385) |
0.2°C |
| Resolution |
0.1°C |
| J |
0.7°C |
| K |
0.8°C |
| T |
0.8°C |
| E |
0.7°C |
| R |
1.8°C |
| S |
1.5°C |
| B |
1.4°C |
| L |
0.7°C |
| U |
0.75°C |
| N |
0.9°C |
| Resolution |
J, K, T, E, L, N, U: 0.1°C, 0.1°F B, R, S: 1°C, 1°F |
| XK |
0.6°C |
| BP |
1.2°C |
| Source accuracy |
NI-120 |
0.2°C |
| PT-100 (385) |
0.33°C |
| PT-100 (393) |
0.3°C |
| PT-100 (JIS) |
0.3°C |
| PT-200 (385) |
0.2°C |
| PT-500 (385) |
0.3°C |
| PT-1000 (385) |
0.2°C |
| Resolution |
0.1°C |
| Accuracy stated for 4-wire measurement. |
| J |
0.7°C |
| K |
0.8°C |
| T |
0.8°C |
| E |
0.7°C |
| R |
1.4°C |
| S |
1.5°C |
| B |
1.4°C |
| L |
0.7°C |
| U |
0.75°C |
| N |
0.9°C |
| Resolution |
J, K, T, E, L, N, U: 0.1°C, B, R, S: 1°C |
| XK |
0.6°C |
| BP |
1.2°C |
| Specifications |
| Ramp functions |
Source functions |
Voltage, current, resistance, frequency, temperature |
| Ramps |
Slow ramp, Fast ramp, 25% step-ramp |
| Loop power function |
Voltage |
24 V |
| Accuracy |
10% |
| Maximum current |
22 mA, short circuit protected |
| Step functions |
Source functions |
Voltage, current, resistance, frequency, temperature |
| Steps |
25% of range, 100% of range |
| Environmental Specifications |
| Operating temperature |
-10°C to 55°C |
| Storage temperature |
-20°C to 71°C |
| Humidity (without condensation) |
90% |
10°C to 30°C |
| 75% |
30°C to 40°C |
| 45% |
40°C to 50°C |
| 35% |
50°C to 55°C |
| Safety Specifications |
| Safety rating |
CSA C22.2 No. 1010.1:1992 |
| EMC |
EN50082-1:1992 and EN55022:1994 Class B |
| Mechanical and General Specifications |
| Size |
96 x 200 x 47 mm |
| Weight |
650 g |
| Batteries |
Four AA alkaline batteries |
| Warranty |
Three years |
| Battery life |
25 hours typical |
| Shock and vibration |
Random, 2 G, 5-500 Hz |