382090 382091 V4.0 09/07
6
1. Input jacks for test leads (U1, U2, U3, N)
2. Input jacks for current probes (I1, I2, I3, I4)
3. Plug for external AC adaptor
4. Optical RS232 PC interface output
5. LCD display
6. WIRING key Select the type of electrical system under test using the WIRING key.
Select 1P2W (for signal-phase two-wire power lines), 1P3W (for signal-
phase three-wire power lines), 3P3W2M (for three-phase three-wire power
line without neutral using the two power meter method; use this selection
when measuring three-phase power with 2-current probe measurement
only) and 3P4W (for three-phase four-wire power lines with neutral)
7.
key Phase sequence detection function key. In the 3P4W mode, press and
hold this key to display the phase detection results as follows:
Normal phase
Reverse phase
8. HOLD key Data hold function key, press HOLD key to freeze displayed reading (the
HOLD icon will appear). Press HOLD again to exit Hold function.
9. key Backlight function key, press to turn backlight on or off. The backlight will
switch off automatically after 30 seconds.
10. PF key Press to view the power factor value (the PF icon is displayed)
11. Θ key Press to view the measured phase angle value (ψ icon is displayed)
12. Hz key Press to display the measured frequency (the Hz icon is displayed)
13. I4 key Press to display the I4 current probe value (the I4 icon is displayed)
14. SET key Press and hold the TIME key then press the SET key to enter the time set
mode and datalogger sampling rate set mode
15 TIME key Press to display the current date and time
16. ↵ Used when setting the date and time. Also used to recall manually
recorded data
17. START key Press to start the automatic datalogging function
18. STOP key Press to stop/pause the automatic datalogging function. Press START to
resume recording.
19. MEMORY Press key to store one reading (set), the ‘M’ icon and the memory address
will display (total manual memory size is 99 sets)
20. READ key Press to recall a manually stored data set
21. POWERPress to display the measured power. Use this button to cycle through the
Pt123, Qt123 and St123 displays
22. ENERGY Press to display the total integrated power energy
23. KEY Lock Press to lock all of the keys except the
and
keys
24.
key Power on-off key
To Next Page
Loading...
