是徳KEYSIGHT 34420A纳伏微欧表用户指南.pdf

The 34420A is a 71/2 digit, high performance nanovolt, micro-ohm meter. Its combination of bench-top and system features makes this meter a versatile solution for your testing requirements now and in the future. Convenient bench-top features • Built-in math operations including thermistor, thermocouple and RTD temperature measurements • Two channel input allows ratio and difference functions for voltage measurements • Highly visible vacuum-fluorescent display • Portable, ruggedized case with non-skid feet Flexible system features • HP-IB (IEEE-488) interface and RS-232 interface are standard • SCPI (Standard Commands for Programmable Instruments) and Keithley 181 compatibility • Readings at up to 250 per second HP 34420A Nano Volt/Micro Ohm Meter The Front-Panel at a Glance 1 Input channel select 5 Menu operation keys 2 Measurement function keys 6 Range/number of digits displayed keys 3 Math operation keys 7 Single trigger/autotrigger/auto hold key 4 Filter select key 8 Shift / local key 2 The Front-Panel Menu at a Glance The menu is organized in a top-down tree structure with three levels. To turn on menu press: To move left/right To move up/down To enter a command press: A: MEASurement MENU 1: DIG FILTER Ø 2: INTEGRATE Ø 3: OCOMP Ω Ø 4: LOW POWER Ω Ø 5: LOW VOLT Ω Ø 6: LoV LIMIT Ω B: TEMPerature MENU 1: PROBE TYPE Ø 2: UNITS Ø 3: RTD TYPE Ø 4:RTD Ro Ø 5: T/C TYPE Ø 6: COLD JUNCT Ø 7: JUNCT TEMP C: MATH MENU 1: STATS Ø 2: NULL VALUE Ø 3: SCALE GAIN Ø 4: SCALE OFST D: TRIGger MENU 1: READ HOLD Ø 2: TRIG DELAY Ø 3: N SAMPLES E: SYStem MENU 1: RDGS STORE Ø 2: SAVED RDGS Ø 3: ERROR Ø 4: TEST Ø 5: CHART OUT Ø 6: CHART SPAN Ø 7: CHART NULL Ø 8: DISPLAY Ø 9: COMMA Ø 10: PRESET Ø 11: REVISION F: Input/O