Fluke 8808A User Manual - Page 81
Range and Measurement Rate Commands and Queries
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4 Operating the Meter Using the Computer Interface Computer Interface Command Set Table 4-10. Function Modifier Commands and Queries (cont.) Command Description MOD? REL RELCLR RELSET RELSET? Meter returns a numeric value indicating modifiers in use, where 1 = MIN; 2 = MAX; 4 = HOLD; 8 = dB; 16 = dB Power; 32 = REL; and 64 = COMP. If multiple modifiers are selected, the value returned is equal to the sum of the values of the selected modifiers. For example, if dB and REL are selected, 40 is returned. Meter enters the relative readings modifier (REL) using the value shown on the primary display as the relative base. Autoranging is disabled. See "Relative Readings Modifier (REL)" in Chapter 3 for more information. Meter exits REL modifier and returns to the ranging mode and range selected prior to selecting REL. Meter enters REL modifier using as the offset value. can be a signed integer, signed real number without exponent, or signed real number with exponent. Autoranging is disabled. If exceeds the measurement range, an Execution Error is generated. See "Relative Readings Modifier (REL)" in Chapter 3 for more information. Meter returns . If the relative modifier has not been selected, an Execution Error is generated. Range and Measurement Rate Commands and Queries Table 4-11 describes range and measurement rate commands and queries. In autorange mode, the Meter automatically selects a range for each reading. In manual range mode, the user selects a fixed range. Table 4-11. Range and Measurement Rate Commands and Queries Command AUTO AUTO? FIXED Description Meter enters the autoranging mode on the primary display. If autorange mode cannot be selected (if REL, MIN MAX or diode/continuity test is selected), an Execution Error is generated. Meter returns 1 if it is in autorange or 0 if not in autorange. Meter exits autoranging on the primary display and enters manual ranging. The present range becomes the selected range. 4-21