HT instruments HT21 - Manual (Page 16)

HT21
EN - 15
Duty cycle (Autorange)
Range Resolution Accuracy Sensibilità Overload protection
0.1%-99% 0.1%
(1.2%rdg + 2dgt)
>8Vrms 250VDC/ACrms
100
s< pulse width <100ms ; Frequency range: 5Hz  150kHz
Capacitance (Autorange)
Range Resolution Accuracy Overload protection
40.00nF 0.01nF
(5.0%rdg + 7dgt)
250VDC/ACrms
400.0nF 0.1nF
(3.0%rdg + 5dgt)
4.000
F 0.001F
40.00
F 0.01F
100.0
F 0.1F (5.0%rdg +5dgt)
6.1.1. Safety
The instrument complies with:
IEC/EN61010-1
Insulation: double insulation
Pollution degree: 2
Measurement category: CAT III 600V
Max height of use: 2000m (6.562 ft)
6.1.2. General data
Mechanical characteristics
Dimensions (LxWxH):
138 x 68 x 37mm ; 5.4 x 2.7 x 1.5 inches
Weight (including battery): 210g (7 ounces)
Power supply
Battery type:
1x9V battery NEDA 1604 IEC 6F22
Indication of low battery: symbol “ ” is displayed
Auto Power OFF: after 30 minutes of idleness
Display
Specifications:
4 LCD, 4000 points + symbol and decimal point
Sample rate: 2times/s
6.2. ENVIRONMENT
6.2.1. Environmental
conditions
Reference temperature: 18°C
 28°C ; (64°F  82°F)
Working temperature: 0°C ÷ 50°C ; (32°F
 22°F)
Relative humidity: <70%HR
Storage temperature: -20°C÷ 60°C ; (-4°F
140°F)
Storage humidity: <80%HR
This product conforms to the prescriptions of the European directive on low voltage
2006/95/EEC (LVD) and to EMC directive 2004/108/EEC
6.3. ACCESSORIES
6.3.1. Standard
accessories
 HT21
meter
 Test leads - Cod. KIT4000A
 Battery
 Carrying
case
 User
manual