EDI DEFLECTOMETER LMD301 Panduan Pengoperasian - Halaman 12
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4.1 MECHANICAL
4.1.1 LMD301
Height .......................................................................................................... 5.5 inches
Width .......................................................................................................... 2.0 inches
Depth (chassis only) ..................................................................................... 5.4 inches
4.1.2 LMD302 AND LMD304
Height .......................................................................................................... 6.4 inches
Width .......................................................................................................... 3.0 inches
Depth (chassis only) ..................................................................................... 7.3 inches
4.2 ENVIRONMENTAL
Storage Temperature Range ................................................................... -45 to +85
Operating Temperature Range ................................................................ -34 to +74
Humidity Range (non-condensing) ..................................................... 0 to 95% Relative
4.3 ELECTRICAL
AC Supply Voltage Minimum ............................................................................ 89 Vac
AC Supply Voltage Maximum .......................................................................... 270 Vac
AC Supply Frequency .................................................................................... 50/60 Hz
AC Supply Power Maximum ............................................................................. 3 watts
AC Timer Control Inputs
True (active) ........................................................................... greater than 70 Vac
False (not active) ........................................................................ less than 15 Vac
Optically Isolated Outputs
True (low, 50 mA) .......................................................................less than 1.5 Vdc
False (high) ............................................................................ greater than 16 Vdc
Maximum Leakage Current (high) ................................................... less than 1 uA
Maximum Current ..................................................................................... 100 mA
Relay Outputs
AC Contact Rating .......................................................................... 5A @ 240 Vac
DC Contact Rating ............................................................................ 5A @ 30 Vdc
4.4 TUNING
4.4.1 LOOP INDUCTANCE (TUNING) RANGE
The detector will automatically tune to a loop and lead-in combination within the tuning
range of 20 to 2500 microHenry with a Q factor greater than 5.
4.4.2 ENVIRONMENTAL TRACKING
The detector automatically and continuously compensates for component drift and
environmental effects throughout the tuning range and across the entire temperature range.
4.4.3 GROUNDED LOOP OPERATION
A detector channel will operate when connected to poor quality loops including those that
have a short to ground at a single point.
4.4.4 LEAD-IN LENGTH
The unit will operate with lead-in (feeder) lengths up to 5,000 feet (1,524 m.) with
appropriate loops and proper lead-in cable.
Eberle Design Inc.
LMD301, LMD302, and LMD304
Series Operations Manual
Section 4
Specifications
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