HT instruments HT4011 - Manual (Page 19)

HT4011
EN – 18
Frequency with leads (Autorange)
Range Resolution Accuracy Sensitivity Overvoltage protection
10.00Hz

49.99Hz 0.01Hz

(1.5%rdg+2digits)

15Vrms 600VDC/ACrms
50.0Hz

499.9Hz 0.1Hz
0.500kHz

4.999kHz 0,001kHz
5.00kHz

10.0kHz 0.01kHz
Duty cycle (Autorange)
Range Resolution Accuracy
0.5%

99.0% 0.1%

(1.2%rdg + 2digits)
100
s  Pulse width  100ms ; Pulse frequency: 100Hz  150kHz; Sensitivity >10Vrms
Temperature with K probe (Autorange)
Range Resolution Accuracy (*) Overvoltage protection
-20.0

399°C 0.1°C

(3%rdg+5°C)
250VDC/ACrms
400

760°C 1°C
-4
 750°F
0.1°F

(3%rdg+9°F)
752
 1400°F
1°F
(*) Accuracy of K-probe not considered
6.1.1. Reference standards
Safety: IEC/EN61010-1
Insulation:
double insulation
Pollution level: 2
Max operating altitude: 2000m (6562 ft)
Overvoltage category: CAT III 600V to ground
6.1.2. General characteristics
Mechanical characteristics
Size (L x W x H):
200 x 66 x 37mm ; (8 x 3 x 1in)
Weight (battery included): 205g (7 ounces)
Max. cable diameter: 30mm (1in)
Power supply
Battery type:
2 batteries x 1.5V AAA
Low battery indication: The display shows the symbol “ “ when the
voltage supplied by the battery is too low.
AutoPowerOff: after 30 minutes (may not be disabled)
Display
Characteristics:
4 dgt LCD max 4000 point, sign and decimal point
Sampling rate: 2 measurements per second
Conversion type: Mean value
6.2. ENVIRONMENT
6.2.1. Environmental conditions for use
Reference temperature:
18°C
 28°C ; (64°F  82°F)
Operating temperature: 5 ÷ 40 °C ; (41°F
 104°F)
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/EC
(LVD) and of EMC Directive 2004/108/EC