Weatherproof Loop Power Indicator (LPI-400 WP)

Weatherproof Loop Power Indicator (LPI-400 WP)
Product Description


  • User Programmable With Password Protection.
  • Easy Programming with Push Buttons for WP & PM Model.
  • Temperature coefficient of accuracy 0.005 Percent FS/Deg.C
  • Software Calibration No Trimpots.
  • Reverse Polarity Protection.
  • Loop Voltage Drop <4.8 VDC.
  • 4 - 20 mA Loop Current Input from Transmitters.
  • Accuracy +/-0.1percent Of Full Scale Range.
  • 4/5 Digit LED Display.
  • Range Locking /Unlocking Facility.
  • Offset Facility To Compensate Field Error.
  • Operational Mode Linear / Square Root; Programmable by user.
  • No external Power Supply is required.



  • Provides Process value Indicator in various Industrial Control & Measurement Application such as Pressure, Flow, Level, Temp., Humidity etc.
  • Remote Indicator at point of measurement or at control end especially where there is no power source
  • Being Non Voltage Producing Device can be directly used in Hazardous Area with Suitable Enclosure
  • Replaces an Analog Meter with no additional wiring and power connection
  • Can be inserted at any point in signal loop as a stand alone as it requires no external power
  • Remote Indication location on tank taps as used in liquid level sensing & control


Technical Specifications:-


4 - 20 mA Loop Current Input from any 2 / 3 Wire Process Transmitter


-1999 To 1999 with Range Lock / Unlock; programmableby user


0.001, 0.01, 0.1, 1; programmable by user


Linear - +/-0.1 percent of span; Square root - +/-0.2percent of span

Operational Mode

Linear & Square root; programmable byuser

Loop Voltage Drop

< 5 VDC


0.5 inch, 3 1/2 digit L.C.D Display

Display Update Rate

Linear mode - 0.8 sec; Square root mode- 0.8 sec


Display shows Und, when I/P current fallsbelow 3.6 mA

Display shows our, when I/P current goes above 20.5 mA

Operating Temperature

-10 to 50 Deg.C

Relative Humidity

Below 95 percent non condensing

Warm up Time

10 Sec


Enclosure Detail


Protection Class

IP 65

Cabinet Material

Polycarbonate, Grey Color

Cable Entry

1 No.Thermoplastic Cable Gland (IP - 68)


120 (H) X 80 (W) X 55 (D) in mm


Wall Mounting / Stand Mounting


Approx. 250 Grams

Contact Us

17-B, Tarun Industrial Estate, Mogra Pada, New Nagardas Road, Andheri (East), Mumbai, Maharashtra, 400069, India
Phone :+918068090472