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Table of Contents
Summary of Contents for Weidmuller LPD450F
- Page 1 Bedienungsanleitung Eigensichere 4 ½-stellige Digital-Anzeige für Feldmontage Operating instructions Inherently safe 4 ½-digit digital display for field installation LPD450F 61001054/00/01.08 Buy: www.ValinOnline.com | Phone 844-385-3099 | Email: CustomerService@valin.com...
- Page 2 LPD450F • Operation General The LPD450F is a field mount, 4+1/2 Digit, LCD Indicator for 4-20 mA signals. Loop powered operation The LPD450F draws its’ power from the 4-20 mA signal current, resulting in a voltage drop across the unit. The voltage drop (2.5 V @ 20 mA) is equivalent to an increase in loop load of 125 .
- Page 3 Industrial signals are frequently floating with respect to local earth, so take care while connecting the signal wires. The LPD450F is not intended to be connected to signals floating above 300 Vrms with respect to local earth.
- Page 4 Connections Strip wires to 7 mm from the ends. Use a suitable ferrule for multistranded wires (do not solder). Use 12-28 AWG Cu Wire rated for temperatures above 70 °C Only, tighten to 4.5 lb-In. For effective protection from electromagnetic noise, all signal cables must be shielded, or located on conductive trays or in conduits.
- Page 5 Display Value/Measurement 11 point 20 mA Input Current mA Curve suitable for fixed input interval breakpoint linearisation. Buy: www.ValinOnline.com | Phone 844-385-3099 | Email: CustomerService@valin.com...
- Page 6 • Setup Changing the set-up 1. Move run mode switch to the upper ‘calibrate/set-up’ position. 2. Press the P key. See table below for details. Setup Sequence Å ì Setting Display Description v1. 0 1 S/W Version S/W Version (Note: this table applies to versions 1.00 to 1.09 only) SetP Select for setup mode Mode...
- Page 7 4, 6, 8, 10, 12, 14, 16, 18 and 20 mA. Mann Series LPD450F Switch positions (shown in correct position for installation).
- Page 8 • Calibration General The LPD450F is factory calibrated. You should not have to recalibrate the unit before installation. Allow the instrument 15 minutes of powered operation (to reach a stable temperature) before calibration. During calibration allow a few seconds for signals to stabilise before accepting the value.
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