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Loop
Power Indicator
Anadig
Make:
Loop
power indicator is a precision process indicator to measure and
indicate current signal 4-20 mA from two wire transmitter. It is self
powered additional power source is not required, as power to the
indicator is derived from current loop itself, A most versatile and
accurate measuring displaying unit for process parameters such as
temperature, flow, pressure, level, speed, % etc.
The
instrument is provided with jumper selection to achieve zero
suppression or elevation. Both zero and span adjustable by multiturn
potentiometers, are accessible after removal of front glass cover or
accessible externally in flameproof W/P field mounting enclosures.
Enclosures
Panel
mounting, field mounting, flame proof, weather proof class IIA, IIB
Field
Mounting
The
cast Aluminium weatherproof or flameproof housing is wall mounting
type for which 2 Nos mounting holes are provided on the base of the
casting for field mounting.
Installation
and Wiring:
Unscrew
the bottom cover the three terminal will be visible. First two
terminals are marked as + and these two terminals are used as
current input from two wire transmitter. This current input signal
also acts as a power to the instrument. The detail wiring is given
separetly.
Technical
Specification
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Input
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4-20 mA from two wire
transmitter
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Display
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12mm, 3 and ½ digit LCD
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Range
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0-19.9, 0-199.9, 0-1999
counts
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Resolution
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0.1 upto 200 and '1' above
200 counts
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Units
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C, Ph, KG/CM, flow, rpm, any
other engineering units
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Input Open
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Display indicates - 1
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Accuracy
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+/-0.25% Fsd +/-1 digit
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Power supply
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Self powered from 4 20mA,
two wire transmitter
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Enclosure
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1) Flameproof diecast
aluminium LM6 alloy suitable for group IIA as per IS 2148 and
Model LPI -1 or
2) wetherproof to IP 55 or
panel mounting, - Model -LPI-2 field mounting, Mdel-LPI-1 or
3) Abs plastic general
purpose
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Mounting
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Panel/surface/field
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Terminals
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Phonix/Elemex 2.5 mm or
equivalent terminal
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Protection
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200mA max. forward, 1000mA
Max. reverse
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Voltage drop
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2.5 V Max. forward, 1.2V max.
reverse
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A/D conversion
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Dual slop, average value auto
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Technique
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Zero correction
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Polarity
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Determined automatically
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A
separate power supply is not required hence ensure the loop current
is always in the range 4mA to 20mAa
Note:
While ordering Mention type of enclosure, range, Parameter etc.
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