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LPP420, 3 3/4 digit LCD panel instrument

LPP420, 3 3/4 digit LCD panel instrument

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LPP420, 3 3/4 digit LCD panel instrument

Product catalog summary

Specifications:

LPP420: Loop powered, range 4-20 mA.
GP422: Supply voltage 9-35 VDC / 6-25 VAC, with three metering ranges: 0-1 V, 0-10 V, and 0-20 mA.
Both models feature a 3 3/4 digit LCD display with yellow backlight and high contrast, suitable for high ambient light conditions.
Input protection up to 35 VDC for all ranges.
Operating temperature range: -10°C to +60°C; Humidity: 0 - 90% RH, non-condensing.
Protection rating: IP 44.
Compliance with EMC and safety regulations: EN 50 081-1, EN 50 082-2, EN 60 730.

Procedures:

Calibration: Use SETUP switches to select parameters and adjust values with UP and DOWN buttons. Backlight flashes to confirm settings.
Range Adjustment (LPP420): Connect a current signal between 4 and 20 mA, set switches for desired display readings at 4 mA and 20 mA inputs.
Range Adjustment (GP422 & LPP420): Connect minimum and maximum input signals, set switches for desired display readings.

Norms and Recommendations:

Ensure compliance with CE and low voltage regulations.
Use screw terminals for connections, with a maximum wire size of 1.5 mm².
For GP422, select input type and contrast using designated switches.
For LPP420, NE43 mode can be toggled to display "----" if input signal is out of range.

Key Data from Diagrams:

Block diagram for LPP420 illustrates connection and calibration setup.

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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