HT instruments HT77N User Manual
Page 13

HT77N
EN - 12
6.1.1. Electrical specifications
Conversion type:
TRMS
Sample rate:
4 times / second
Temperature coefficient:
0.2x(accuracy) /°C, <18°C o >28°C
6.1.2. Reference guideline
Safety:
IEC/EN61010-1
Insulation:
double insulation
Pollution level:
2
Max height of use:
2000m (6562 ft)
Measurement category:
CAT III 300V
6.1.3. General characteristics
Mechanical characteristics
Size (L x W x H):
200 x 70 x 40mm (8 x 3 x 2in)
Weight (battery included):
265g (9 ounces)
Jaw opening:
40mm (2in)
Max. cable diameter:
40mm (2in)
Power supply
Battery type:
2x1.5V batteries type AAA LR03
Low battery indication:
symbol “ ” at display
Battery duration:
approx. 60 hours
Auto Power OFF:
after 20 min of idleness
Display
Characteristics:
4 LCD, 6000 counts, decimal point, bargraph
and backlight
6.2. ENVIRONMENT
6.2.1. Environmental conditions for use
Reference temperature:
23° ± 5°C (73° ± 41°F)
Operating temperature:
0°C ÷ 30°C (32°F ÷ 86°F) (RH
≤ 80%)
30°C ÷ 40°C (86°F ÷ 104°F) (RH
≤ 75%)
40°C ÷ 50°C (104°F ÷ 122°F) (RH
≤ 45%)
Allowable relative humidity:
<80%RH
Storage temperature:
-20 ÷ 60 °C (-4°F ÷ 140°F)
Storage humidity:
<80%RH
This instrument satisfies the requirements of Low Voltage Directive 2006/95/EEC
(LVD) and of EMC Directive 2004/108/EEC
6.3. ACCESSORIES
6.3.1. Standard accessories
User manual
Carrying bag
Batteries (not fitted)