Measurement Accuracy
Voltage DC	30 V: 0.02% 2 counts (upper display) 30 V: 0.02% 2 counts (lower display) 100 mV: 0.02% 2 counts -10 to 75 mV: 0.025% 1 count (via TC connector)
Current DC	24 mA: 0.02% 2 counts
Resistance	0 to 400 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)
Frequency	2 to 1000 CPM: 0.05% 1 count 1 to 1100 Hz: 0.05% 1 count 1 to 10 kHz: 0.05% 1 count Sensitivity: 1 V peak-to-peak-minimum
Pressure	Accuracy from 0.025% of range using any of 29 pressure modules (for detailed specifications refer to pressure modules in options and accessories). Modules available for differential, gauge, vacuum, absolute, dual and high pressure.
Source Accuracy
Voltage DC	100 mV: 0.02% 2 counts 10 V: 0.02% 2 counts -10 to 75 mV: 0.025% 1 count (via TC connector)
Current DC	24 mA (source): 0.02% 2 counts 24 mA (simulate): 0.02% 2 counts
Resistance	15 to 400 Ω: 0.15 Ω (excitation current 0.15 to 0.5 mA), 0.1 Ω (excitation 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)
Frequency	2 to 1000 CPM: 0.05% 1 to 1100 Hz: 0.05% 1 to 10 kHz: 0.25% Waveform: 5 V p-p squarewave, -0.1 V offset
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
Functions
Ramp	Source functions: Voltage, current, resistance, frequency, temperature Ramps: Slow ramp, fast ramp, 25% step-ramp
Loop Power	Voltage: 24 V Accuracy: 10% Maximum current: 22 mA, short circuit protected
Step	Source functions: Voltage, current, resistance, frequency, temperature Steps: 25% of range, 100% of range
General Specifications
Environmental	Operating temperature: 14 to 131°F (-10 to 55°C) Storage temperature: -4 to 159.8°F (-20 to 71°C) Operating altitude: 9842.52' (3000 m)
Agency Approvals	EN 61010-1:1993, ANSI/ISA S82.01-1994; CAN/CSA C22.2 No 1010.1:1992
Battery	Type: 4 x AA alkaline batteries Replacement: Separate battery compartment, accessible without breaking calibration seal
Side Port Connections	Pressure module connector, also used for remote real-time programming
Dimensions	5.1 x 9.3 x 2.4" (130 x 236 x 61 mm)
Weight	1.43 lbs (0.65 kg)

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