HT instruments HT78 - Manual (Page 14)

HT78
EN - 13
6. TECHNICAL SPECIFICATIONS
6.1. CHARACTERISTICS
Accuracy is indicated as [% rdg + (number of dgt) * resolution] referred to: 23°C(73°F) ±
5°C(41°F); RH< 80%
AC TRMS Current
Range Resolution Accuracy Bandwidht Max input current
300mA 0.1mA 3Arms
3A 0.001A 30Arms
30A 0.01A 300Arms
300A 0.1A
±(1.5%rdg+ 8dgt)
3000A 1A ±(2.0%rdg+ 8dgt)
50 ÷60Hz
3000Arms
DC analogical output
Range Resolution Accuracy Bandwidht Max input current
300mA 1mV/1mA 3Arms
3A 1mV/0.01A 30Arms
30A 1mV/0.1A 300Arms
300A 1mV/1A
3000A 1mV/10A
±(1.5% FS) 50 ÷60Hz
3000Arms
FS = full scale of any range
Internal filter
Type of filter Cut-off frequency
Low-pass 150Hz
6.1.1. Safety
Comply with:
IEC/EN61010-1, IEC/EN61010-2-032
Insulation: double insulation
Pollution degree: 2
Max height: 2000m (6562 ft)
Installation category: CAT II 600V, CAT III 300V to the ground
6.1.2. General data
Mechanical characteristics
Size:
341(L) x 194(W) x 52(H)mm ; 13(L) x 8(W) x 2(H) inch
Weight (including batteries): 1.9kg (67 ounces)
Max conductor size:
108mm (4”)
Supply
Batteries type:
2x1.5V alkaline batteries type AAA LR03
Low battery indication: “ ” symbol is displayed when the level is low
Battery life: approx 200 hours of continuous use
AutoPowerOFF: approx 10 minutes of idleness
Display
Characteristics:
4 LCD 3200 points plus decimal point, sign and bargraph
Sample rate: 2 times/sec
Conversion mode: TRMS
Over range symbol: “O.L” indication at display