HT9021 is designed for AC/DC current measurement up to 1000A in TRMS in CAT IV 600V and CAT III 1000V according to IEC/EN61010-1 safety standard.

The clamp is equipped with a 6000 points display with backlight and bargraph in order to perform simple readings even in poorly lit environments. HT9021 also performs voltage measurements up to 1000V, Resistance, Frequency, Capacitance and Temperature with K probe.

Mechanical characteristics:

• Dimensions (L x W x H): 252 x 88 x 44 mm
• Weight (including battery): 442 grams
• Max. cable diameter: 45 mm
  
  

Power supply:

• Battery type: 1 9V battery NEDA 1604 IEC 6F22 JIS 006P
• Low battery indication: the display shows the symbol "+ III" when the voltage supplied by the battery is too low
• Battery life: about 200 hours of continuous use
• Auto power OFF: after about 15 minutes of non-use
  
  

Display:

• 4 LCD (max 6000 points), sign and decimal point with bargraph and backlight
• Sampling rate: 2 measures per second
• Conversion type: TRMS
  
  
  

Environmental conditions of use

• Reference temperature: 18°C ÷ 28°C
• Operating temperature: 5 ÷ 40 °C
• Allowable relative humidity: <80% RH
• Storage temperature: -20 ÷ 60 °C
• Storage humidity: < 80%RH
  
  

Standards considered:

• The instrument complies with the following standards: IEC/EN 61010-1
• EMC: IEC/EN61326-1
• Insulation: double insulation Pollution level: 2
• Indoor use; max altitude: 2000 m
• Overvoltage category: CAT IV 600V, CAT III 1000V to earth