HT77 were specially created for detecting the leakage currents. They are intended for determining of malfunctions and rapid analysis of the anomalies, caused by breaking RCD. Model HT77 determines current leaks and its value down 1000[A] and has max. Ø of seizure 54 mm. HT77 completely they [sootvetsvuyut] to standards CATIII 600V, CATIV of 600V[i] CATIII of 600V[dlya] of the measurements of current and voltage respectively.

Basic functions

• measurement TRMS with alternating current
• the retention of the peak values
• automatic turning off of the nourishment
• the manual regime
• the measurement of alternating current
• the measurement of the voltage of alternating current
• the measurement of the resistance
• the measurement of the frequency
• the test of the electrical conductivity

  Specification

  [ZHKD], ones	4000
  Rate of reading	2,5 times/flogged
  Indication of the overload	There is
  Indication of discharging the small batteries	There is
  Automatic turning off of the nourishment	10 min.
  Max. Ø of the cable	30 mm
  Ø of the tongs	30 mm
  Range of stress ACE, before	750 [v]
  Permission	1 before
  Accuracy	±1,5% of IV + of 5 unit of mf
  The input impedance	10 M Ω
  Range of stress D[S], before	750[V] ACE, 1000[V] DC
  Permission	0,1 - 1 before
  Accuracy	±0,5% of IV + of 3 unit of mf
  The input impedance	10 M Ω
  Protection on the overload	750 [V] ACE, 1000 [V] D[S]
  Range of the measurement of current ACE, A	40/400/4/90
  Permission	0,1 - 1A
  Accuracy	±1,5%[IV] + of 5 unit of mf
  Protection on the overload	800[A] * of 1 min
  Range of the measurement of resistance, Ω	400
  Permission	0,1 Ω
  Accuracy	±1,0% of IV + of 2 unit of mf
  Protection on the overload	600[V]
  Sonic buzzer of a circuit break	There is
  Range of the measurement of the frequency	1[Gts] - 400 kHz
  Overall sizes, mm	260 * 85 * 46
  Mass, deg	400