London Electronics Ltd : UK designed and built
About Us Ask Us... Clients Projects
Easy to use, saving valuable time for busy engineers since 1992

Process signal Loop Powered Digital Panel Meters


Loop powered digital panel meters need no separate power supply, because they get their power from the 4-20mA input signal itself.

This saves on wiring costs and makes these panel meters very simple to install and commission.

88-PRO Loop powered digital panel meter

88-PRO loop powered digital panel meter 4-20mA input


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

loop powered digital panel meter operating manual handbook download

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.


Also available in 144 x 72mm format - The Maxi-INT4 series.

Maxi-INT4 large format digital panel meter 144 x 72mm





88-PRO Loop powered panel meter 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







30 years of digital panel meter and large digital display design, manufacture and export

Tech events during our 30 years in business
1992 : World Wide Web becomes widely available
1993 : Email widely adopted, PDF files
1994 : First EU car with SatNav as standard
1995 : PHP and Apache web server released
1996 : USB port widely adopted.
1997 : Broadband replaces dial-up, Netflix
1998 : Google, Digital terrestrial TV
1999 : Wifi networks available, IoT born
2000 : USB Flash drive / memory stick
2001 : The dotcom crash
2002 : The wireless headset developed
2003 : Hybrid cars, Human Genome project
2004 : Honda's Asimo running robot
2005 : Youtube video hosting service
2006 : Nintendo Wii released
2007 : iPhone - the 1st smartphone, Facebook
2008 : Android operating system released
2009 : Mobile phone apps become widely available
2010 : Instagram
2011 : Raspberry Pi computer announced
2012 : Voyager 1 leaves solar system
2013 : Whatsapp
2014 : The year Virtual Reality became popular
2015 : Apple Pay launched
2016 : 1st Amazon parcel delivered by drone
2017 : Blockchain gains traction
2018 : First rover to land on an asteroid
2019 : Quantum computer beats 'normal' computer
2020 : First private owned human space flight
2021 : First aerodynamic flight on Mars
2022 : Webb telescope deployed at L2

ISO9001 Returns Terms Privacy

© 1992-2022 London Electronics Ltd.
Generated in May 2022
 
Top of page