HT instruments HT712 - Manual (Page 15)

HT712
EN - 14
6. TECHNICAL SPECIFICATIONS
6.1. TECHNICAL FEATURES
The accuracy is indicated as [% of reading + number of digits]. It is referred to the
following environmental conditions: temperature 23°C ± 5°C, relative humidity < 70%.
DC voltage measurement
Range Resolution Accuracy Input impedance
Protection against
overloads
1.5 ÷ 600.0V 0.1V ±(0.8%rdg+1dgt) 10MΩ DC/AC 660V rms
AC voltage measurement with 2 test leads
Range Resolution
Accuracy
(40.0
÷ 69.9Hz)
Input impedance
Protection against
overloads
1.5 ÷ 600.0V 0.1V ±(1.5%rdg+5dgt) 10MΩ DC/AC 660V rms
Crest factor max: 2
Frequency measurement with 2 test leads
Range Resolution Accuracy Protection against overloads
40.0 ÷ 69.9Hz 0.1Hz ±(0.5%rdg+1dgt) DC/AC 660V rms
Minimum detectable input voltage: 1.6V
Crest factor max: 2
AC voltage measurement with 1 test lead (*)
Range Resolution Accuracy Input impedance
50 ÷ 600V 10V ±(20%rdg+2dgt) 1MΩ
Minimum detectable input frequency: 40.0 ÷ 69.9Hz
Crest factor max: 2
(*) On standard conditions: instrument correctly gripped, standard shoes, standard floor, etc.
Frequency measurement with 1 test lead (*)
Range Resolution Accuracy Input impedance
40.0 ÷ 69.9Hz 0.1Hz ±(1.0%rdg+2dgt) 1MΩ
Minimum detectable input voltage: 50V
Crest factor max: 2
(*) On standard conditions: instrument correctly gripped, standard shoes, standard floor, etc.
Phase sequence test and phase conformity test (*)
Range Input impedance Protection against overloads
100 ÷ 600V 1M Ω 600V AC RMS
Crest factor max: 2
(*) On standard conditions: instrument correctly gripped, standard shoes, standard floor, etc.
Resistance measurement
Range Resolution Accuracy Max open voltage
Protection against
overloads
0 ÷ 1499Ω 1Ω ±(1.0%rdg+5dgt) About 0.4V
DC
DC/AC 600V rms
one minute
Continuity test
Range Buzzer Max open voltage Protection against overloads
< 100Ω About 1.5V
DC
DC/AC 600V rms