IDEAL 61-920, Instruction Manual, Page: 6 / 20

Page 6
3. Specifications
• Measuring range and accuracy
Function Range Resolution Measuring range Accuracy
Earth 20 Ω 0.01 Ω 0.00
~
20.99 Ω ±1.5%±0.05 Ω
resistance
200 Ω 0.1 Ω
16.0
~
99.9 Ω ±2%±0.5 Ω
(Auto-ranging) 100.0
~
209.9 Ω ±3%±2 Ω
1 Ω
160
~
399 Ω ±5%±5 Ω
1200 Ω 400
~
599 Ω ±10%±10 Ω
10 Ω 600
~
1260 Ω —
AC current (ACA) 100mA 0.1mA 0.0
~
104.9mA ±2%±0.7mA
(sine wave) 1000mA 1mA 80
~
1049mA
(50Hz/60Hz) 10A 0.01A 0.80
~
10.49mA ±2%
(Auto ranging) 30A 0.1A 8.0
~
31.5AmA
* Crest factor <2.5 Accuracy at sine wave +1% (50Hz/60Hz, peak value shall not exceed 60A)
* In the following cases, zero will be displayed on the LCD.
At 20 Ω range of Earth resistance function: 0.04 Ω or less
* Auto ranging shifts to upper range when the input exceeds 105% of the selected range, and shifts to the lower range when the input
falls under 80% of the lower range.
• Operating system Earth resistance function: Constant voltage injection, Current detection,
(Frequency: Approx. 2400Hz)
Dual Integration
AC current function: Successive Approximation (True-RMS)
• Display Liquid crystal display with a maximum count of 2099
• Over-range indication "OL" is displayed when input exceeds the upper limit of a measuring range
• Response time Earth resistance function: Approx. 7 seconds
AC current function:
Approx. 2 seconds
• Sample rate Approx. once per second
• Location for use Altitude 2000m or less, Indoor/ outdoor use
• IP protection degree IP40
• Temperature & 75°F±5%/Relative humidity 85% or less
humidity range (no condensation)
(guaranteed accuracy)
• Operating temperature 14°F ~ 104°F/Relative humidity 85% or less
& humidity range
(no condensation)
• Storage temperature -4°F ~ 140°F/Relative humidity 85% or less
& humidity range (without batteries, no condensation)
• Power source (4) batteries AA
• Current consumption Approx. 50mA (max. 100mA)
• Measurement time Approx. 12 hours (when manganese battery is used),
Approx. 24 hours (when alkaline battery is used)
• Auto power-off Turns power off after 10 minutes of non-use.
ND 5417-1 61-920 Ins 9/26/06 8:49 AM Page 6