8808A 120V Fluke Electronics, 8808A 120V Datasheet - Page 70

• Manufacturer Part Number: 8808A 120V
• Description: DMM 5.5 RES RS-232 INTERFACE
• Manufacturer: Fluke Electronics
• Type: Digital (DMM)r

Specifications of 8808A 120V

• Includes: Test Leads
• Style: Bench
• Display Digits: 5.5
• Display Type: VFD, Dual
• Display Count: 200000
• Function: Voltage, Current, Resistance, Frequency
• Functions, Extra: Continuity, dB, Diode Test
• Features: Hold, Min/Max, RS-232 Port
• Ranging: Auto/Manual
• Response: True RMS
• Lead Free Status / RoHS Status: Not applicable / RoHS non-compliant
• Other names: 614-1068

8808A
Users Manual
4-10
Setting the Trigger Type Configuration
External Trigger via the Computer Interface
Slow
Medium
Fast
[1] Depends on A/D trigger speed.
[2] Depends on how fast the trigger signal is transmitted.
Rate
To set the trigger type configuration using the computer interface, enter the command
TRIGGER <type> (where <type> is the trigger type) and press Enter. See Table 4-3 for
trigger types.
Select trigger type 3 or 5 to enable the settling delay if the input signal is not stable before
a measurement is triggered. Typical settling delays are provided in Table 4-3. RS-232
reading transfer rates are provided in Table 4-4.
To trigger a measurement using the RS-232 computer interface, enter the command
*TRG and press Enter. See the “Common Commands” section later in this chapter for use
of *TRG command.
To trigger a measurement using pin 9 of the RS-232 interface, see
Figure 4-1.
In external trigger mode (mode 2 to mode 5), *TRG command is always
available.
If you enter the remote mode with trigger type 4 or 5 selected, the Meter remains in
its external trigger state; however, because the Meter is in the remote mode, you will
only be able to trigger measurements with rear trigger types 4 and 5. To exit remote
mode, perform steps 1 and 2 and select trigger type 2 or 3 (as applicable).
Internal Trigger Operation (Trigger 1)
Figure 4-1. External Trigger Using Pin 9 of RS-232 Interface
Table 4-4. RS-232 Reading Transfer Rates
+5 V Out (Pin 1)
Trig In (Pin 9)
100
2.5
20
[1]
[1]
[1]
Note
Readings per Second
External Trigger Operation (Trigger 4)
100
2.5
20
[2]
[2]
[2]
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