Power Factor (Pf); Maintenance And Repair - Amprobe ACD-31P Manual De Uso

3. Connect CoM input to neutral or ground terminal.
4. Connect ' + ' input to Ø 1 terminal
5. Clamp jaws around to Ø 1 wire
6. The display will show reading, W (real power), VA (apparent power)or VAR (reactive
power) measurement and Pf.
7. write down the reading as kw1, kVA1, kVAR1
8. Connect CoM input to neutral or ground terminal.
9. Connect ' + ' input to Ø 2 terminal
10. Clamp jaws around to Ø 2 wire
11. The display will show reading, W (real power), VA (apparent power) or VAR (reactive
power) measurement and Pf.
12. write down the reading as kw2, kVA2, kVAR2
13. Connect CoM input to neutral or ground terminal.
14. Connect ' + ' input to Ø 3 terminal
15. Clamp jaws around to Ø 3 wire
16. The display will show reading, W (real power), VAR (reactive power) or VA (apparent
power) measurement and Pf.
17. write down the reading as kw3, kVA3, kVAR3
Load
kw Total
kVA Total
kVAR Total

Power factor (Pf)

Total Power factor = Real Power (V rms * A rms * Cos θ )/Apparent Power (V rms * A rms)
"A-lags" annunciator indicates an inductive circuit, or Current A lags Voltage V (phase-
shift angle θ is "+").
"A-lags" not visible indicates a capacitive circuit, or Current A leads Voltage V (phase-shift
angle θ is "-").

MAINtENANCE AND REPAIR

if there appears to be a malfunction during the operation of the meter, the following
steps should be performed in order to isolate the cause of the problem:
1. Check the battery.
2. Review the operating instructions for possible mistakes in operating procedure.
3. inspect and test the test leads for a broken or intermittent connection.
except for the replacement of the battery or test probes, repair of the multimeter
should be performed only by a factory Authorized Service Center or by other qualified
instrument service personnel. The front panel and case can be cleaned with a mild solution
of detergent and water. Apply sparingly with a soft cloth and allow to dry completely
before using. Do not use aromatic hydrocarbons or chlorinated solvents for cleaning.
balanced
3 * kw1
3 * kVA1
3 * kVAR1
Unbalanced
kw1 + kw2 + kw3
kVA1 + kVA2 + kVA3
kVAR1 + kVAR2 + kVAR3
10