Uni-T UT216C [10/18] Operation

Содержание

• Contents 2
• I overview 3
• Iilsafety operation rules 3
• Open case inspection 3
• Iv eiectrical symbols 4
• And figure 3 5
• See figure 1 5
• V external construction 5
• Vi lcd display see figure 2 5
• Vii key functions 6
• Viii technical indicator 7
• Capacitance hf 9
• Diode test h 9
• Lo frequency hz ut216b c only 9
• Temperature c ut216c only 9
• Ut216a b 9
• Ut216c 9
• Ix instructions for measurement 10
• Operation 10
• Figure 15 18
• X maintenance and upkeep see 18

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UNI UT216A B C OPERATING MANUAL UT216A B C OPERATING MANUAL 11 NOV Range NCV Accuracy SMOOVrms 10mm LED Buzzer indication IX Instructions for measurement operation 1 AC measurement see Figure 4 1 Push the switch to AC current gear press trigger to open the clamp head to take the conductor to be measured then slowly loosen the trigger until clamp head is completely closed Be sure the conductor to be measured is clamped at the center of clamp head if not additional error may be resulted and clamp ammeter can only measure one current conductor measuring two or more current conductors concurrently may result in wrong measurement reading 2 Read true value of AC directly from the display 3 Long press SELECT key at AC gear to select VFC measurement to measure frequency converter current UT216B C only 4 It is able to press REL at AC current gear to select INRUSH surge current measurement After starting electrical appliance the instant on current of appliance can be measured out press INRUSH key again to quit the surge current measurement 600A range can be available for surge current measurement UT216C only 15 A Note Current measurement must be operated within 0 C 40 C if positive reading is achieve after measuring DC current the current direction will be from up to down the upward is panel and base cap is downward Do not loosen trigger abruptly since Hall component is sensitive in some extent to magnet heat and mechanical stress but also to the impact which may cause short time reading variation Be sure the conductor to be measured is clamped at the center of clamp head if not an additional reading error of 1 0 may be resulted AC conversion adopts the AC coupling true RMS response mode sinusoidal input for correction The accuracy of non sinusoidal wave shall be adjusted as follows Crest factor 1 4 2 0 accuracy should be increased 1 0 Crest factor 2 0 2 5 accuracy should be increased 2 5 Crest factor 2 5 3 0 accuracy should be increased 4 0 16