Self Test; Testing The Lcd Display (T+ Pro); Equipment Requirements - Fluke T+ Calibration Information Manual

T+ and T+ PRO
Calibration Information
Equipment
Calibrator
3-phase power supply
Digital multimeter

Self Test

To avoid possible electric shock or personal injury:
• Perform a self test before any measurements are taken for
• When the batteries are depleted, self test will not function.
Although the Tester may be used with depleted batteries,
replace depleted batteries immediately to avoid Tester damage
from battery acid leakage.
To perform the self test, short the two probes. The self test lights all LEDs, and all LCD segments
(T+ PRO). The beeper sounds (unless disabled) and the Tester switches to continuity mode. To
complete the self test, measure a known voltage before use. If the Tester fails self test, it must not
be used and requires service. See "Contacting Fluke."

Testing the LCD Display (T+ PRO)

Use the following procedure to test the LCD display:
The Tester must remain inactive for approximately 30 seconds before
performing the following test. This will force a processor reset that will
display all LCD segments for approximately 1 second at power up.
1. Observe the LCD and short the test probes together. All LCD segments shown in
6
Table 2. Equipment Requirements
Minimum Required Characteristics
ac / dc voltage range: 10 V to 600 V
Accuracy: ± 5 %
Frequency 50/60 Hz
Resistance range: 100 Ω to 9 kΩ
Accuracy: ± 1.25 %)
120 V, 3-phase output
ac current range: 0 to 20 mA ± 7
voltage, continuity, resistance, or rotary field.
Replace the batteries.
Figure 1 should light.
XWWarning
WCaution
Note
Figure 1. LCD Display
Recommended Model
Fluke 5520A High Performance
Multi-Product Calibrator
or
5500A Multi-Product Calibrator
Elgar 5250A or equivalent
Fluke 189 Digital Multimeter
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