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2
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2. Features
●
Battery powered, the instruments test insulation up to
100000M
Ω
at 2500V for KEW 3121A, 200000M
Ω
at 5000V
for KEW 3122A and 200G
Ω
at 5000V and 400G
Ω
at 10000V
for KEW 3123A.
●
Suited for heavy duty electrical maintenance and servicing of
industrial installations, cables, transformers, generators and
switchgear where high voltage insulation tests are required.
●
Dual scales for low an d high ranges which change
automatically. Colour coded scales for easy reading plus
LED's that illuminate in matching colour.
●
Drip proof construction. The case is sealed with rubber
gaskets to protect internal circuit against rain.
●
Hard carrying case furnished as standard accessory. Houses
both instrument and test leads in compact form. Made of
plastic, it is highly water resistant.
●
Designed for low power consumption. Since the maximum
current consumption is 90mA eight pieces of 1.5V SUM-3
（
or
equivalent
）
permit about 6 hours of continuous operation
even when the instrument is used on maximum load or twice
longer on minimum load.
●
Rated output voltage is maintained down to 100M
Ω
for KEW
3121A, 200M
Ω
for KEW 3122A and 0.2G
Ω
/0.4G
Ω
for KEW
3123A. This permits accurate measurements of low insulation
resistance.
●
Optional adapter MODEL8324 is available for connection to
recorder and enables cable insulation monitoring.
