Fluke 393 - Power; Auto Power Off; Backlight; Power-On Options

CAT III 1500V TRMS Clamp Meter
Performance Tests
7
4. Set the calibrator to OPER:
a. Verify that the DUT reads within the display limits.
b. Verify the DUT reading for the remaining steps for resistance.
5. Push to go to Capacitance mode.
6. Set the calibrator to the capacitance for the first test point.
7. Set the calibrator to OPER:
a. Verify that the DUT reads within the display limits.
b. Verify the DUT reading for the remaining steps for capacitance.
DC Current, AC Current, and iFlex Verification
To test and verify the current measurement functions of the Meter and iFlex, you will
need to select a coil for current simulation. See Table 1 for options.
These methods are for the most effective Test Uncertainty Ratios (TURs). The
procedures outlined here will model these methods. To verify the iFlex functionality
without the i2500 iFlex probe, voltage can be used to simulate current up to 2500 A.
DC Current (Jaw with Amplifier and 25-Turn Coil)
To verify dc current measurement with the jaw:
1. Connect the calibrator:
a. For test points below 20 A, use a single-wire short between the 20 A and AUX LO
jacks on the calibrator.
b. For test points from 20 A to 120 A, use the single wire short on 52120A Hi Current
HI and LO jacks.
c. For test points above 120 A, connect the 52120A and 52120A/COIL3KA. On the
52120A, set LCOMP to ON.
2. Set the DUT to Y (DC current measurement mode).
3. Set the DUT on a flat surface away from any metal. Push to zero the DC Current
function.
4. Place the DUT around the shorting wire or inside the center of the coil. Calibration
accuracy to specifications is guaranteed only when proper clamp alignment is made.
The DUT should be as centered as possible on the base during verification.
5. Set the calibrator to the first test point.
6. Set the calibrator and the 52120A to OPER:
a. Verify that the DUT reads within the display limits.
b. Verify the DUT reading for the remaining steps for dc current.