Factory Clocks, count-up timers, count-down timers

Are you looking for a reliable way to accurately display the precise time to all your workforce?

The challenge...
A common issue in large factories is that staff clock in and out at different times, depending on which clock they can see. If all the clocks in your factory aren't synchronised, there are likely to be arguments about arrival and departure times.

And, of course, there must be no question about the accuracy of your factory clocks, they must be precise.

The solutions...
We have developed several simple systems which synchronise one or more clocks to either a precision internal reference, to an external atomic reference, or to your computer server. This allows clocks to be located in rooms where no reliable radio or satellite signal can be received.

1. The precision internal reference
This is the simplest system, where the clock includes an internal precision reference. This has a typical worst case error of 2 minutes per year. It can automatically correct for summer and winter time changes. One display can be used as a master, feeding up to 32 synchronised slaves around the factory.

2. The atomic system...
This consists of a small ASR-GPS satellite receiver, powered by the displays, which you can mount on the roof or on a wall. This then sends an RS422 data signal to each clock in the factory, ensuring they are all prefectly synchronised to the correct time.

3. The Server synchronised system...
This offers more flexibility, but your time accuracy depends on your server's clock reference. This system is ideal if you need to trigger alarms or sounders to signal the start and end of work periods, breaks etc. An application on a PC lets you create a simple schedule.

The two main application windows are the Event Entry screen and the Scheduler.

[Master Clock Display] [Slave display]

[^] FUSION Series of large Clock / timer displays
The FUSION is a highly precise, stable, flexible and easy to use large digit clock / timer display, and our top large digit seller, for both display-only and display + output applications. You can choose from digit sizes of 57mm, 102mm, 150mm, 200mm, 300mm and 400mm do suit the viewing distance in your application. We have a digit size selector which may help you to choose the best digit size for your application. It has a number of useful plug-in options which make it ideal in many control and monitoring applications. The front panel buttons can be locked, or can be operated by remotely wiring 4 pushbuttons to the display. If you need to be able to read the display in a reflection, for example in a heads-up display system, you can switch it to display a mirrored image. Interesting fact The FUSION was designed to combine the benefits of our three most popular products... The INTUITIVE (High precision, easy to use panel meter) The 1700 Series (Large digits and sealed enclosure, ideal for use outside and in large industrial environments) The Easy Reader (Economical large digit display family) We designed it, we build it, we know it inside out, so you can count on us for first class support. Plus... We are often asked to combine several fusion displays of various functions into one common display. See here for examples. Please contact us if you would like us to quote for a system to suit your requirements.
See datasheet
See model number & pricing calculator
FUSION Counter / Ratemeter large display - Specifications
Approvals	Produced to IPC 610 Class 2 Standard UL ISO9001:2008 QA CERT.
Input connections	Up to 4 pulse input ports
Input Signals	Contact closure, 5V pullup, 1mA switched.
Timebase	Precision temperature compensated reference. Alternatively we make an atomic reference receiver which ensures your clock is always correct to within a second.
Digits	4 or 6 digits, with digit height from 57mm up to 400mm. Variable brightness.
Digit colour	Red - standard. Green - optional
Front panel controls	4 buttons to set time, date, alarms etc.
Power	100-240 VAC std, 11-30VDC option. 30VA Power burden, max.
Precision	Within 10 seconds per month. automatic summer and winter time correction. Alternatively, can be synchronised to our ASR-GPS atomic time reference receiver.
Analogue output	Optional plug-in 16 bit module Linearity +/- 0.02% of range 0-20/4-20mA into 0 to 500 Ohms Resolution 0.4uA 0-10V into loads >600 Ohms Resolution 0.2mV -10 to+10V into loads >600 Ohms Resolution 0.4mV Accuracy 0.1%of range Stability 50ppm/C Fully isolated from input and power Fully scalable with digital precision Special features Forward and reverse action possible Can be set to operate from nett or gross value.
Alarm output	Optional plug-in relay SPST modules 2 Alarms rated 5A 250VAC, SPST 4 Alarms rated 2A 250VAC, SPST Selectable normally open or normally closed Optional plug-in relay SPDT modules 2 Alarms rated 5A 250VAC, SPDT Optional plug-in solid state modules 2 Alarms rated 50V 100mA DC. Adjustable hysteresis In-flight compensation facility. Energise or de-energise on trip Special features Adjustable timers to set energise and de-energise delays. Can also be set to pulse for applications needing less than 100% duty cycle. In-band and out-of-band alarm function. Manual and automatic in-flight compensation. Can be set to operate from nett or gross value.
Serial data output	Optional plug-in modules. RS232 RS485 Addressable On demand or continuous output. Special features Can include time and date with RTC option fitted. Can be set to operate from nett or gross value.
Logic inputs	3 logic inputs, individually configurable for Hold, Reset, Tare, Peak/valley, Nett/Gross, Memory Address Normally open, NPN or contact closure input to activate. 5V open circuit, 1mA switched current.
Real time clock option	Accuracy better than 2 minutes per year. Allows date and time to be included in serial data, for example for printing time-stamped records. Automatic summer/winter time correction for Europe and USA Battery backup to maintain timing whilst switched off. Type = CR1620 3V Lithium
Environmental	Storage -20 to +70C Operating 0 to 50C Non condensing. Optional IP67 cover SPC4
Connectors	Detachable screw terminals
Bezel size	Depends on digit size and number of digits.
Panel cutout	Depends on digit size and number of digits.
Depth behind panel	Depends on digit size and number of digits.
Sealing	IP65 standard, all-round
Mounting Brackets	[Wall Mounting] [Suspension mounting]

[^] FUSION Series of large Slave Displays
The FUSION is a highly precise, stable, flexible and easy to use large digit serial slave display, and our top large digit seller, for both display-only and display + output applications. You can choose from digit sizes of 57mm, 102mm, 150mm, 200mm, 300mm and 400mm do suit the viewing distance in your application. We have a digit size selector which may help you to choose the best digit size for your application. It has a number of useful plug-in options which make it ideal in many control and monitoring applications. The front panel buttons can be locked, or can be operated by remotely wiring 4 pushbuttons to the display. If you need to be able to read the display in a reflection, for example in a heads-up display system, you can switch it to display a mirrored image. Interesting fact The FUSION was designed to combine the benefits of our three most popular products... The INTUITIVE (High precision, easy to use panel meter) The 1700 Series (Large digits and sealed enclosure, ideal for use outside and in large industrial environments) The Easy Reader (Economical large digit display family) We designed it, we build it, we know it inside out, so you can count on us for first class support. Plus... We are often asked to combine several fusion displays of various functions into one common display. See here for examples. Please contact us if you would like us to quote for a system to suit your requirements.
See 6 digit operating Manual
See datasheet
See model number & pricing calculator
FUSION Serial ASCII input large display - Specifications
Approvals	Produced to IPC 610 Class 2 Standard UL ISO9001:2008 QA CERT.
Input connections	Detachable plug-in screw terminals
Input Signal	Accepts RS232 or RS485 input - please specify which you need. Modes ASCII: Displays and ASCII character within the limitations of a 7 segment display. Quant: Displays only numeric ASCII values. Qa.Tot: Quantity totaliser. Can be used to accumulate weight values, for example after each batch. Uses a contact closure to trigger addition. Adjustable parameters Baud rate: 300 to 115200 Data format: 701, 7e1,7n2,801,8e1,8n1,8n2 Termination character: Hex 00 to FF Reject Characters: counted from termination char.
Addressing	00 (wildcard) to F7
Digits	4 or 6 digits, with digit height from 57mm up to 400mm. Variable brightness. Red - standard. Green - optional Available in clock format (HH:MM and HH:MM:SS) Available in numeric format (8.8.8.8. or 8.8.8.8.8.8.)
Front panel controls	Calibration, Tare, Reset, Max/Min, Alarms
Power	100-240 VAC std, 11-30VDC option. 30VA Power burden, max.
Analogue output	Optional plug-in 16 bit module Linearity +/- 0.02% of range 0-20/4-20mA into 0 to 500 Ohms Resolution 0.4uA 0-10V into loads >600 Ohms Resolution 0.2mV -10 to+10V into loads >600 Ohms Resolution 0.4mV Accuracy 0.1%of range Stability 50ppm/C Fully isolated from input and power Fully scalable with digital precision Special features Forward and reverse action possible Can be set to operate from nett or gross value.
Alarm output	Optional plug-in relay SPST modules 2 Alarms rated 5A 250VAC, SPST 4 Alarms rated 2A 250VAC, SPST Selectable normally open or normally closed Optional plug-in relay SPDT modules 2 Alarms rated 5A 250VAC, SPDT Optional plug-in solid state modules 2 Alarms rated 50V 100mA DC. Adjustable hysteresis In-flight compensation facility. Energise or de-energise on trip Special features Adjustable timers to set energise and de-energise delays. Can also be set to pulse for applications needing less than 100% duty cycle. In-band and out-of-band alarm function. Manual and automatic in-flight compensation. Can be set to operate from nett or gross value.
Serial data output	Optional plug-in modules. RS232 RS485 Addressable On demand or continuous output. Special features Can include time and date with RTC option fitted. Can be set to operate from nett or gross value.
Logic inputs	3 logic inputs, individually configurable for Hold, Reset, Tare, Peak/valley, Nett/Gross, Memory Address Normally open, NPN or contact closure input to activate. 5V open circuit, 1mA switched current.
Real time clock option	Accuracy better than 2 minutes per year. Allows date and time to be included in serial data, for example for printing time-stamped records. Automatic summer/winter time correction for Europe and USA Battery backup to maintain timing whilst switched off. Type = CR1620 3V Lithium
Environmental	Storage -20 to +70C Operating 0 to 50C Non condensing. Optional IP67 cover SPC4
Connectors	Detachable screw terminals
Bezel size	Depends on digit size and number of digits.
Panel cutout	Depends on digit size and number of digits.
Depth behind panel	Depends on digit size and number of digits.
Sealing	IP65 standard, all-round
Mounting Brackets	[Wall Mounting] [Suspension mounting]

Clock and timer examples

Examples of custom made large display using elapsed timers, counters, days since last accident, atomic clock and atomic calendar.


A large, busy airport in the UK wanted to be sure passengers would have no reason not to know the correct time.

They commissioned London Electronics to design and build these very large, high visibility blue clocks, and to include atomic timing synchronisation.

Passengers can easily see the time from up to 130 metres (400 feet) away.




This display sits outside near the reception area.




Time and Temperature displays

Outdoor time and temperature displays are ideal if you want to draw attention to your building.



They are particularly valuable inside factories, where the whole workforce can see the exact time (all clocks synchronised to precise time) and temperature with the option of adding humidity too.

These displays are sealed for excellent reliability in washdown areas, high humidity, dusty or cold environments, and come in a range of digit sizes to suit the viewing distance you need in your factory.

Ideal in clean rooms, food preparation lines, steelworks, foundries etc.



Contact us for more details