Product Description
Lovato DMK Digital Measuring Instrument - Three Phase with LED
General characteristics
The DMK 1... instruments are available with flush-mount housing, 96x48mm size. Measurements are TRMS values and provide for reliable operation even in presence of harmonics.
Operational characteristics
– Auxiliary supply voltage: 220-240VAC
– Operating frequency: 50-60Hz
– TRMS measurements
– HIGH and LOW measurement storage
– 1 output relay with 1 changeover contact for DMK...R1 version only
– Housing: flush mount 96x48mm
– Terminals: 4mm2
– Degree of protection: IP54 on front.
DMK 15 - DMK15 R1
– Voltage measure range: 35-660VAC
– Current measure range: 0.05-5.75A
– Frequency measure range: 45-65Hz
– Programmable PT ratio: 1.00-500.00
– Programmable CT ratio: 5-10,000
– Accuracy:
Voltage ±0.25% f.s. ±1 digit
Current ±0.5% f.s. ±1 digit
Power ±1% f.s. ±1 digit
DMK 15 R1 only
– Voltage
• Phase loss or failure: OFF/5-85%
• Maximum voltage: OFF/102-120%
• Minimum voltage: OFF/70-98%
• Asymmetry: OFF/2-20%
• Phase sequence: OFF/L1-L2-L3/L3-L2-L1
– Current
• Current loss: OFF/5-85%
• Maximum current: OFF/102-200%
• Maximum current instantaneous tripping: OFF/110-600%
• Minimum current: OFF/5-98%
• Asymmetry: OFF/2-20%
– Power
• Rated power: 1-10,000
• Maximum power: OFF/101-200%
• Maximum power instantaneous tripping: OFF/110-600%
• Minimum power: OFF/10-99%
– Freuency
• Maximum frequency: OFF/101-110%
• Minimum frequency OFF/90-99%
– Time delay for max-min voltage, max-min current current loss, phase loss, asymmetry and min-max power ❶: 0.0-900.0 seconds.
