| Measurement Specifications | |
| Fast | 45 channels per second max (0.03 seconds per channel, depending on function and range) |
| Medium | 16 channels per second (0.1 seconds per channel) |
| Slow | 2 channels per second (0.5 seconds per channel) |
| Custom | Selectable from 0.2 NPLC to 200 NPLC |
| Display Resolution | 4.5 to 6.5 digits, depending on function and sample rate |
| DC Voltage | |
| Maximum Input | 300 V |
| Common Mode Rejection | 140 db at 50 or 60 Hz ±0.1% (1k Ω imbalance) |
| Normal Mode Rejection | 60 db for NPLC of 1 or greater and power-line frequency ±0.1% |
| Measurement Method | Multi-ramp A/D |
| A/D Linearity | 2 ppm of measurement + 1 ppm of range |
| Input Bias Current | 30 pA at 25°C |
| DC Voltage Input Characteristics | |
| Range | 100 mV, 1, 10, 100, 300 V |
| Resolution | 100.0000 mV, 1, 10, 100, 300 V |
| Measurement Rate/Resolution | Fast 4.5 digits: 10, 100µV, 1, 10, 100 mV Medium 5.5 digits: 1, 10, 100 µV, 1 mV, 10 mV Slow 6.5 digits: 0.1, 1, 10, 100 µV, 1 mV |
| Input Impedance | 10 MΩ or >10 GΩ 10 MΩ ±1% |
| DC Voltage Accuracy | |
| Range | 100 mV, 1, 10, 100, 300 V |
| 24 hour (23 ±1°C) | 0.0025 + 0.003 0.0018 + 0.0006 0.0013 + 0.0004 0.0018 + 0.0006 0.0018 + 0.002 |
| 90 days (23 ±5°C) | 0.0025 + 0.0035 0.0018 + 0.0007 0.0018 + 0.0005 0.0027 + 0.0006 0.0031 + 0.002 |
| 1 year (23 ±5°C) | 0.0037 + 0.0035 0.0025 + 0.0007 0.0024 + 0.0005 0.0038 + 0.0006 0.0041 + 0.002 |
| T.C./ °C outside 18 to 28 °C | 0.0005 + 0.0005 0.0005 + 0.0001 0.0005 + 0.0001 0.0005 + 0.0001 0.0005 + 0.0003 |
| AC Voltage | |
| Maximum Input | Front panel: 300 V rms or 425 V peak Rear inputs: 150 V CAT II 250 V peak |
| Measurement Method | AC-coupled true-rms. Measures the ac component of input with up to 300 V dc bias on any range |
| AC Filter Bandwidth | Slow: 20 Hz Fast: 200 Hz |
| Maximum Crest Factor | 5:1 at full scale |
| AC Voltage Input Characteristics | |
| Range | 100 mV, 1, 10, 100, 300 V |
| Resolution | 100 mV, 1, 10, 100, 300 V |
| Measurement Rate/Resolution | Fast 4.5 digits: 10, 100 µV, 1, 10, 100 mV Medium 5.5 digits: 1, 10, 100 µV, 1, 10 mV Slow 6.5 digits: 0.1, 1, 10, 100 µV, 1 mV |
| Input Impedance | 1 MΩ ±2% shunted by 150 pF |
| AC Voltage Input Accuracy | |
| Range | 100 mV, 1, 10, 100, 300 V |
| Frequency | 20 Hz to 20 kHz 20 Hz to 50 kHz 50 Hz to 100 kHz |
| 24 hour (23 ±1°C) | 0.1 + 0.05, 0.2 + 0.05, 0.55 + 0.08 0.1 + 0.05, 0.2 + 0.05, 0.55 + 0.08 0.1 + 0.05, 0.2 + 0.05, 0.55 + 0.08 0.1 + 0.05, 0.2 + 0.05, 0.55 + 0.08 0.1 + 0.05, 0.2 + 0.05, 0.55 + 0.27 |
| 90 days (23 ±5°C) | 0.11 + 0.05, 0.22 + 0.05, 0.6 + 0.08 0.11 + 0.05, 0.22 + 0.05, 0.6 + 0.08 0.11 + 0.05, 0.22 + 0.05, 0.6 + 0.08 0.11 + 0.05, 0.22 + 0.05, 0.6 + 0.08 0.11 + 0.05, 0.22 + 0.05, 0.6 + 0.27 |
| 1 year (23 ±5°C) | 0.11 + 0.05, 0.22 + 0.05, 0.6 + 0.08 0.11 + 0.05, 0.22 + 0.05, 0.6 + 0.08 0.11 + 0.05, 0.22 + 0.05, 0.6 + 0.08 0.11 + 0.05, 0.22 + 0.05, 0.6 + 0.08 0.11 + 0.05, 0.22 + 0.05, 0.6 + 0.27 |
| T.C./°C Outside 18 to 28°C | 0.01 + 0.005, 0.01 + 0.005, 0.05 + 0.01 0.01 + 0.005, 0.01 + 0.005, 0.05 + 0.01 0.01 + 0.005, 0.01 + 0.005, 0.05 + 0.01 0.01 + 0.005, 0.01 + 0.005, 0.05 + 0.01 0.01 + 0.005, 0.01 + 0.005, 0.05 + 0.03 |
| DC Current Accuracy | |
| Range | 100 µA, 1, 10, 100 mA |
| 24 hour (23 ±1°C) | 0.005 + 0.003 0.005 + 0.001 0.005 + 0.003 0.005 + 0.001 |
| 90 days (23 ±5°C) | 0.006 + 0.0035 0.006 + 0.0011 0.006 + 0.0035 0.015 + 0.0035 |
| 1 year (23 ±5°C) | 0.007 + 0.0035 0.007 + 0.0011 0.007 + 0.0035 0.015 + 0.0035 |
| T.C./°C outside 18 to 28 °C | 0.002 + 0.001 0.002 + 0.001 0.002 + 0.001 0.002 + 0.001 |
| Thermocouple Temperature Accuracy | |
| Type | K, T, R, S, J, N, E, B, C, D, G, L, M, U, W |
| Temperature Range | -454 to 2501.6°F (-270 to 1372°C) -454 to 752°F (-270 to 400°C) -58 to 3214°F (-50 to 1768°C) -58 to 3214°F (-50 to 1768°C) -346 to 2192°F (-210 to 1200°C) -454 to 2372°F (-270 to 1300°C) -454 to 1832°F (-270 to 1000°C) 212 to 3308°F (100 to 1820°C) 32 to 4199°F (0 to 2315°C) 32 to 4199°F (0 to 2315°C) 32 to 4199°F (0 to 2315°C) -328 to 1652°F (-200 to 900°C) -58 to 2570°F (-50 to 1410°C) -328 to 1112°F (-200 to 600°C) 32 to 4199°F (0 to 2315°C) |
| Temperature | -328°F (-200°C) 32°F (0°C) 1832°F (1000°C) -328°F (-200°C) 32°F (0°C) 392°F (200°C) 752°F (400°C) 32°F (0°C) 572°F (300°C) 2192°F (1200°C) 2912°F (1600°C) 32°F (0°C) 572°F (300°C) 2192°F (1200°C) 2912°F (1600°C) -328°F (-200°C) 32°F (0°C) 1832°F (1000°C) -328°F (-200°C) 32°F (0°C) 932°F (500°C) 1832°F (1000°C) -328°F (-200°C) 32°F (0°C) 572°F (300°C) 1292°F (700 °C) 572°F (300°C) 1112°F (600°C) 2192°F (1200°C) 2912°F (1600°C) 1112°F (600°C) 2192°F (1200°C) 3632°F (2000°C) 1112°F (600°C) 2192°F (1200°C) 3632°F (2000°C) 1112°F (600°C) 2192°F (1200°C) 3632°F (2000°C) -328°F (-200°C) 32°F (0°C) 1472°F (800°C) 32°F (0°C) 932°F (500°C) 1832°F (1000°C) -328°F (-200°C) 32°F (0°C) 752°F (400°C) 1112°F (600°C) 2192°F (1200°C) 3632°F (2000°C) |
| Accuracy (Internal CJC) | 35°F (1.60°C) 33°F (0.62°C) 33°F (0.64°C) 35°F (1.60°C) 33.2°F (0.65°C) 32.8°F (0.48°C) 32.7°F (0.41°C) 34.3°F (1.28°C) 33.3°F (0.71°C) 32.97°F (0.54°C) 33°F (0.56°C) 34.26°F (1.26°C) 33.37°F (0.76°C) 33.12°F (0.62°C) 33.2°F (0.65°C) 34.56°F (1.42°C) 33.098°F (0.61°C) 32.95°F (0.53°C) 35.04°F (1.69°C) 33°F (0.64°C) 32.81°F (0.45°C) 32.83°F (0.46°C) 34.57°F (1.43°C) 33.09°F (0.61°C) 32.83°F (0.46°C) 32.83°F (0.46°C) 35.65°F (1.98°C) 33.85°F (1.03°C) 33.11°F (0.62°C) 33.02°F (0.57°C) 32.99°F (0.55°C) 33°F (0.64°C) 33.71°F (0.95°C) 32.81°F (0.45°C) 32.92°F (0.51°C) 33.314°F (0.73°C) 32.66°F (0.37°C) 32.61°F (0.34°C) 32.92°F (0.51°C) 33.78°F (0.99°C) 33.11°F (0.62°C) 32.88°F (0.49°C) 33°F (0.64°C) 32.92°F (0.51°C) 32.75°F (0.42°C) 34.68°F (1.49°C) 33.13°F (0.63°C) 32.72°F (0.40°C) 32.66°F (0.37°C) 32.61°F (0.34°C) 32.91°F (0.51°C) |
| Accuracy (External CJC) | 32.75°F (0.42°C) 32.27°F (0.15°C) 32.39°F (0.22°C) 32.72°F (0.40°C) 32.27°F (0.15°C) 32.21°F (0.12°C) 32.21°F (0.12°C) 34.03°F (1.13°C) 33.13°F (0.63°C) 32.88°F (0.49°C) 32.92°F (0.51°C) 33.99°F (1.11°C) 33.2°F (0.67°C) 33°F (0.56°C) 33.06°F (0.59°C) 32.54°F (0.30°C) 32.21°F (0.12°C) 32.28°F (0.16°C) 33.13°F (0.63°C) 32.41°F (0.23°C) 32.32°F (0.18°C) 32.37°F (0.21°C) 32.46°F (0.26°C) 32.18°F (0.10°C) 32.16°F (0.09°C) 32.21°F (0.12°C) 35.65°F (1.98°C) 33.85°F (1.03°C) 33°F (0.62°C) 33.02°F (0.57°C) 32.61°F (0.34°C) 32.75°F (0.42°C) 33.18°F (0.66°C) 32.59°F (0.33°C) 32.68°F (0.38°C) 33.04°F (0.58°C) 32.64°F (0.36°C) 32.61°F (0.34°C) 32.9°F (0.50°C) 32.36°F (0.20°C) 32.21°F (0.12°C) 32.23°F (0.13°C) 32.28°F (0.16°C) 32.28°F (0.16°C) 32.27°F (0.15°C) 32.68°F (0.38°C) 32.27°F (0.15°C) 32.21°F (0.12°C) 32.64°F (0.36°C) 32.61°F (0.34°C) 32.9°F (0.50°C) |
| Resistance Input Characteristics | |
| Range | 100 Ω, 1, 10, 100 kΩ, 1, 10, 100 MΩ |
| Resolution | 100 Ω, 1, 10, 100 kΩ, 1, 10, 100 MΩ |
| Measurement Rate/Resolution | Fast 4.5 digits: 10, 100 mΩ, 1, 10, 100 Ω, 1, 10 kΩ Medium 5.5 digits: 1, 10, 100 mΩ, 1, 10, 100 Ω, 1kΩ Slow 6.5 digits: 0.1, 1, 10, 100 mΩ, 1, 10, 100 Ω |
| Source Current | 1 mA/4 V 1 mA/4 V 100 µA/6 V 100 µA/12 V 10 µA/12 V 1 µA/12 V 0.1 µA/12 V |
| Resistance Accuracy | |
| Range | 100 Ω, 1, 10, 100 kΩ, 1, 10, 100 MΩ |
| 24 hour (23 ±1°C) | 0.003 + 0.003 0.002 + 0.0005 0.002 + 0.0005 0.002 + 0.0005 0.002 + 0.001 0.015 + 0.001 0.3 + 0.01 |
| 90 days (23 ±5°C) | 0.008 + 0.004 0.008 + 0.001 0.008 + 0.001 0.008 + 0.001 0.008 + 0.001 0.02 + 0.001 0.8 + 0.01 |
| 1 year (23 ±5°C) | 0.01 + 0.004 0.01 + 0.001 0.01 + 0.001 0.01 + 0.001 0.01 + 0.001 0.04 + 0.001 0.8 + 0.01 |
| T.C./°C Outside 18 to 28°C | 0.0006 + 0.0005 0.0006 + 0.0001 0.0006 + 0.0001 0.001 + 0.0002 0.003 + 0.0004 0.15 + 0.002 |
| RTD Temperature Accuracy (4 wire) | |
| Temperature | -328°F (-200°C) 32°F (0°C) 572°F (300°C) 1112°F (600°C) |
| Accuracy | 32.02°F (0.015°C) 32.036°F (0.02°C) 32.072°F (0.04°C) 32.108°F (0.06°C) |
| Fast sample rate (NPLC ≤10) | Add 0.02°C Add 0.02°C Add 0.02°C Add 0.02°C |
| T.C./°C Outside 18 to 28°C | 0.0021°C 0.0023°C 0.0028°C 0.0033°C |
| Thermistor Temperature Accuracy (4 Wire) | |
| Temperature | -40°F (-40°C) 32°F (0°C) 77°F (25°C) 122°F (50°C) 212°F (100°C) 302°F (150°C) |
| Accuracy 2.2 kΩ Thermistor | 32.003°F (0.002°C) 32.007°F (0.004°C) 32.018°F (0.01°C) 32.02°F (0.012°C) 32.144°F (0.08°C) 32.63°F (0.35°C) |
| Accuracy 5 kΩ Thermistor | 32.005°F (0.003°C) 32.005°F (0.003°C) 32.009°F (0.005°C) 32.0126°F (0.007°C) 32.063°F (0.035°C) 32.27°F (0.15°C) |
| Accuracy 10 kΩ Thermistor | 32.005°F (0.003°C) 32.005°F (0.003°C) 32.009°F (0.005°C) 32.0162°F (0.009°C) 32.0306°F (0.017°C) 32.108°F (0.06°C) |
| Frequency | |
| Range | 100 mV to 300 V |
| Frequency | 20 to 40 Hz 40 Hz to 1 MHz |
| 24 hour (23 ±1°C) | 0.03 0.006 |
| 90 days (23 ±5°C) | 0.03 0.01 |
| 1 year (23 ±5°C) | 0.03 0.01 |
| T.C./°C Outside 18 to 28°C | 0.001 0.001 |
| General Specifications | |
| Voltage | 100 to 264 V in 4 power model selections (100 V, 120 V, 220 V, 240 V) |
| Frequency | 47 to 440 Hz (automatically sensed when turned on) |
| Power Consumption | 36 V A peak (24 W average) |
| LAN | 10/100 Mb TCPIP DHC |
| Remote Commands | SCPI command set |
| Internal Memory | File Security |
| Alarm Outputs | 6 TTL alarm outputs—assignable to one or multiple channels |
| Alarm Setpoints | 2 assignable alarm setpoints/channel, Hi Lo, Hi Hi, Lo Lo |
| Language Menus | English, Chinese, French, German, Japanese, Korean, Portuguese, Russian and Spanish |
| Operating Temperature | 32 to 122°F (0 to 50°C) |
| Storage Temperature | 68 to 158°F (20 to 70°C) |
| Temperature (Warm-Up) | One hour to full uncertainty specifications |
| Relative Humidity (Non-Condensing) Operating | 32 to 82.4°F (0 to 28°C) ≤90% 82.4 to 104°F (28 to 40°C) ≤75% 104 to 122°F (40 to 50°C) ≤50% |
| Relative Humidity (Non-Condensing) Storage | 68 to 158°F (20 to 70°C) ≤95% |
| Standard Rack Height | 3 U |
| Dimensions | 5.91 x 11.22 x 15.16" (150 x 285 x 385 mm) |
| Weight | 13.2 lbs (6 kg) |


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