Seaward IRT 1557 - Manual (Page 17)

IRT1557
Operating Instructions
- 17 -
Nominal Current 1 mA
Number of
Measurements
per EN615577-2
3000
using
2000mA/Hr Alkaline Batteries
Input Protection 1000V
Circuitry
Protection
test inhibited if ≥ 30V AC or DC at
inputs
Lo Ω Ω Ω Ω
Range 20.00 Ω
Accuracy 2% + 2 digits
Resolution 0.01 Ω
Analog Bar
Graph 0 to 100 Ω and infinity
Open Circuit
Voltage 4V dc nominal
Short Circuit
Current >200 mA 0–2Ω
Test Leads Zero Zero up to 10 Ω
Number of
Measurements
per EN61557-4
5000
using
2000mA/Hr Alkaline Batteries
Input Protection 1000V
Circuitry
Protection test inhibited if ≥ 30V AC or DC at
inputs
Resistance Measurement
Range
2000 Ω
Accuracy 5% + 2 digits
Resolution 1 Ω
Analog Bar
Graph 0 to 10 kΩ and infinity
Bar Graph
Accuracy 10%
Beeper On at ≈30 Ω or less
Test Current 25µA nominal