Process signal Loop Powered Digital Panel Meters

These loop powered digital panel meter need no power supply, because they derive their power from the 4-20mA input signal.

The 88-PRO is a simple, low cost digital panel meter for use with 4-20mA signals.

Precise …
This digital panel meter is easy to use and has high precision and stability. You can set the display to have 3 1/2 digits (+/- 1999) or pseudo 4 1/2 digits (+/- 19990) or pseudo 5 1/2 digits (+/- 199900)

Flexible …
This panel meter can be widely scaled to suit most 4-20mA signals and can have a units-of-measure label added to the front.

88-PRO Specifications
Input connectionsDetachable screw terminal
Input Signal3 1/2 digit LSI converter
Current input 4-20mA
Accuracy+/-0.1% of range
Thermal stability - range+/- 100ppm/oC
Thermal stability - offset+/- 100ppm/oC
Digit colourBlack on Grey
Digits3 1/2 digits LCD, 12mm high. 6 metres max. viewing distance. 3 readings per second.
SealingIP54 standard, IP67 with optional SPC4 cover
ScalingZero and span screwdriver adjusted, with coarse range push-on jumper switches. Units of measure label window.
For example oC, oF, kg, psi etc.
EnvironmentalStorage -20 to +70C
Operating 0 to 50C
Non condensing.
Optional IP67 cover SPC4

Functions in the digital panel meter range …

New: Ex nR Atex Certified build options available

For hazardous areas we can offer the following explosion proof options on most models. Tell us what you need and we will be pleased to quote for Atex certified systems

  • Zone 1 ii 2 G Ex px iiC T6/T5/T4 Gb – Requires pressurised air system
  • Zone 2 ii 3 G Ex nR iiC T6/T5/T4 Gc – any product
  • EXD Zone 2 on request – POA

The London Electronics ATEX certified products are supplied certified for use in the condition in which they are supplied. No liability will be assumed for any loss or damages of any nature, direct or indirect, including any loss of profits or consequential damages, injury or death suffered or incurred by the buyer as a consequence of failure to install, use and/or apply the product within the scope of the installation document and certification supplied.