1/8 DIN digital time display / clock
The INT-S is a flexible and easy to use serial data input remote display.
When you combine it with the ASR60 atomic time code receiver, it acts as a precision time display / clock.
Suited for these applications and more:-
- General time display
- General date display
- Precision time alarm device
- Precision date alarm device
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The INT-S is a low cost yet highly flexible and easy to use 1/8 DIN remote display, which accepts serial data ASCII input from the ASR60 atomic standard time receiver (UK and western Europe only) - see below.
It has a number of useful plug-in options which make it ideal for use in many control and monitoring applications.
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| Input connections | Detachable screw terminal |
| Input Signal | Accepts RS232, RS422, RS485, TTY active and passive. |
| Baud Rates | 300 to 19200 |
| Digits | 6 digits HH.MM.SS or DD.MM.YY, 14mm high. Legible up to 7 metres away |
| Digit colour | Red or green |
| Front panel controls | Setup, Baud, Reset, Max/Min, Alarms |
| Power | 11-30VDC or 95-265 VAC |
| Accuracy | No errors for whole number scale factors. |
| Thermal stability - range | No drift whilst locked. 0.01% when out of lock, but automatically corrects as soon as lock is re-established. |
| Thermal stability - offset | No offset errors |
| Analogue output | Optional plug-in module
4-20mA into 0 to 500 Ohms
0-10V into loads>600 Ohms
-5 to+5V into loads>600 Ohms
Fully isolated from input and power
Fully scalable with digital precision
Forward and reversion action possible
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| Alarm output | Optional plug-in modules
2 Alarms rated 5A 250VAC, SPST
4 Alarms rated 5A 250VAC, SPST
Adjustable hysteresis
In-flight compensation facility.
Energise or de-energise on trip
Normally open or closed |
| Serial data output | Optional plug-in modules.
RS232 1200 baud output only.
RS422 1200 baud output only.
RS485 Addressable
DeviceNet Addressable
Modbus Addressable
Profibus DP Addressable |
| Logic inputs | TARE, MIN/MAX and RESET |
| Connectors | Detachable screw terminals |
| Bezel size | 96mm wide x 48mm high. 13mm forward. |
| Panel cutout | 92mm wide x 45mm high. +1mm, -0mm |
| Depth behind panel | 125mm including connectors + cable. |
| Sealing | IP65 standard, IP67 with optional SPC4 cover |
| See operating Manual |
| See datasheet |
Rugby MSF Atomic time data source
If you need to know exactly what time it is, the ASR60 is ideal. And it is affordable.
It provides an RS422 data string, containing date and time, derived from the National Physical Laboratory's atomic clock reference.
You can send this data to a PC, control system or public display. All applications which rely on accurate timing can benefit from this cost effective reference.
Look at these handy features...
- Small, only 115mm x 65mm x 40mm
- Sealed to IP65 / NEMA4, withstands harsh environments.
- DC powered, from 10 to 30VDC suits mobile and fixed use.
- RS422 output can send data up to 500m
- Precision quartz backup oscillator maintains timing during signal loss.
- Low cost compared to similar time references.
- Data includes time and date.
- Signal indicator helps you align the compact internal antenna
- Can be set for UK or European operation
The ASR60 is perfect for budget applications which need to be synchronised within a second or two of real time
It can be used in fixed or portable applications, thanks to its wide ranging power supply, and can be mounted inside or outside, wherever a suitable signal can be received.
 Operating Manual...
The data string updates every second and is in this format...
<hr><min><sec><day><mnth><yr><Status><cr>
Each field has the following characteristics:-
| hr | : from 00 to 23 |
| min | : from 00 to 59 |
| sec | : from 00 to 59 |
| day | : from 01 to 31 |
| mnth | : from 01 to 12 |
| yr | : last 2 digits. For example in 2005 this will be 05 |
| status | : A + sign when data has been updated by MSF
: A - sign when data comes from backup crystal oscillator. |
| cr | : ASCII 13 hex 0D Carriage return |
When the unit is first switched on, the hours, minutes, days, months and years will be --. The seconds will be numeric, incrementing 1 per second, but not locked. So, a typical switch-on data string may look like ....
----34-------
As soon as the receiver has successfully decoded the full date and time, the data string will include all numeric values.
Need large format clocks? You can feed this data direct to our large digit serial input displays to create a factory-wide precision time reference for your employees. Or mount one of our compact 1/8 DIN time display slaves on your control panel.
   
The MSF transmitter at Rugby is at latitude 52° 22' N, and longitude 1° 11' W.
The estimated equivalent monopole radiated power (EMRP) is 15 kW and the horizontal radiation pattern is substantially omnidirectional.
The signal provides a field strength exceeding 100 µV/m throughout the UK, and it can be satisfactorily received throughout much of north and west Europe and Ireland.
Reception limits are most often caused by local interference and screening due to nearby metalwork, for example in a steel-framed building. Because the ASR60 can be mounted outside and can send its signal over hundreds of metres, you should be able to mount the receiver where there is good signal quality. Do not mount the receiver near fluorescent lighting, variable speed drives or other electrically noisy devices.
MSF Scheduled Maintenance Periods
The MSF 60 kHz time and frequency signal broadcast from the BT Rugby
Radio Station is occasionally taken off-air to allow maintenance work to be
carried out in safety. The dates and times (in UK local time) of scheduled
maintenance periods are as follows:
| 6 September 2005 |
from 1000 to 1400 BST |
| 3 January 2006 |
from 1000 to 1400 UTC |
The duration of each outage period will be kept to a minimum, and the signal may be back on-air prior to the times given above.
Unscheduled Breaks in Service
It is possible that short unscheduled breaks in transmission will occur
in addition to the routine breaks for maintenance. NPL provides a help line
(+44 (0)20 8943 6493) which gives information on whether the MSF signal is in
one of its maintenance periods, and, during working hours, whether the signal
is on air.
If you'd like more information on this item, please email your query to
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london-electronics.com
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