Fluke 8845A Manual page 82

8845A/8846A
Programmers Manual
Command
DFILT?
MOD?
Range and Measurement Rate Commands and Queries
The commands in Table 23 relate to ranging and measurement rates (i.e., readings/
second). In the autorange mode, the Meter automatically selects a range for each reading;
in the manual range mode, the user selects a fixed range.
Command
AUTO
AUTO?
FIXED
RANGE
<range>
72
Table 22. Function Modifier Commands and Queries (cont.)
Returns the state of the digital averaging filter.
Meter returns a numeric value indicating modifiers in use. 8=dB, 16=dB Power, 32 =
Relative, 64 = Compare.
Table 23. Range and Measurement Rate Commands and Queries
Causes the meter to enter the autoranging mode on the primary display. If the autorange
mode cannot be selected (e.g., if dB or diode/continuity test is selected), an Execution
Error is generated.
Causes meter to return "1" in autorange, or "0" if it is not.
Causes the meter to exit autoranging on the primary display and enter manual ranging.
The present range becomes the selected range.
Sets the primary display to the range designated by <range>, where <range> is a number
between 1 and 7 that corresponds to a range shown in Tables 5-12A and 5-12B.
Table 23A. Ranges at Fast & Medium Measurement Rate
Range Voltage
Value Range
1 300 mV
2 3 V
3 30 V
4 300 V
5 1000 V dc*
6 ERROR
7 ERROR
* 1000 V dc, 750 V ac
Table 23B. Ranges at Slow Measurement Rate
Range Voltage
Value Range
1 100 mV
2 1000 mV
3 10 V
4 100 V
5 1000 V dc*
6 ERROR
7 ERROR
* 1000 V dc, 750 V ac
Description
Description
Ohms Current
Range Range
300 Ω 30 mA
3 k Ω 100 mA
30 k Ω 10 A
300 k Ω ERROR
3 M Ω ERROR
30 M Ω ERROR
300 M Ω ERROR
Ohms Current
Range Range
100 Ω 10 mA
1000 Ω 100 mA
10 k Ω 10 A
100 k Ω ERROR
1000 k Ω ERROR
10 M Ω ERROR
100 M Ω ERROR
Frequency
Range
1000 Hz
10 kHz
100 kHz
1000 kHz
1 MHz
ERROR
ERROR
Frequency
Range
1000 Hz
10 kHz
100 kHz
1000 kHz
1 MHz
ERROR
ERROR