5.- GENERAL SPECIFICATIONS
DISPLAY
Type | 4 or 6 digits, 7 segments, red or green LED. |
Height digit | 57 (2.3") or 100 mm. (4") |
Range máx | 99 : 59 or 99 :59 : 59 |
Brightness | Set by switch for 25%, 50%, 75% |
| or 100% (normal). |
REAL TIME CLOCK.
Type . . . . . . . . . . . . . . . . . 59 mm 59 ss (model C0) 12/24 hours selectable
Time setting . . . . . . . . . . . . By volt free contact closure inputs seconds reset, minutes advance and hours advance.
Time accuracy . . . . . . . . . . ±1 minute per month.
Power down . . . . . . . . . . . . Maintains time for minimum 2 years without mains power.
RUN TIME CLOCK
OUTPUTS
SERIAL OUTPUT . . . . . . . Output intended for transmission to the remote display fitted with a clock display as a slave clock display.
Signal . . . . . . . . . . . . . . . . RS422 level 1200 baud fixed rate. One transmission each second while showing real time or run time.
String . . . . . . . . . . . . . . . . . Transmits
or
Data string
Standard mode | . . . . . HH.MM.SS for 6 decade version. |
| HH.MM or MM.SS for 4 decade version. |
Newport mode . | . . . . . HHM.MS.S for 6 decade version. |
| HHM.M or MMS.S for 4 decade version. |
Character length . . . | . . . . . One start bit, 8 data bits no parity and |
| one stop bit. |
Handshake | . . . . . No handshake : one data string |
Type . . . . . . . . . . . . . . . . .
Timer resolution . . . . . . . . .
Timer uncertainty . . . . . . . .
Timer memory . . . . . . . . . .
Alarm . . . . . . . . . . . . . . . . .
external closure inputs. Alarm enable . . . . . . . . . . .
Alarm output . . . . . . . . . . .
Alarm indication . . . . . . . . .
Initialization . . . . . . . . . . . .
99 mm 59 ss, 99 hh 59 mm or 99 hh 59 mm 59 ss
1 second.
1 second max. per start/stop sequence. Run time maintained for 2 years minimum but not updated with mains removed. One minute or one second resolution (one minute only on model C2) set by
Controlled by internal switch. Optically isolates transistor switch 30 V / 30 mA capacity.
Clock stop, display flashes and alarm output activates.
By operation of one or more the control inputs.
transmitted each second. |
EXCITATION VOLTAGE OUTPUT
Vexc . . . . . . . . . . . . . . . . . +15 Vdc ±20%. @100 mA. max. Ripple . . . . . . . . . . . . . . . . 100 mVac 50/60 Hz.
ENVIRONMENTAL
Temperature |
|
Operating . . . . | 0 to +50 ºC (32 to 122 ºF). |
Storage | |
Relative humidity | 0 to 85 % not condensed. |
CONTROL LINES
Type | Three inputs sharing one common return. |
Threshold | Rising : +2.3 V min., +3.6 V max. |
| Falling : +0.9 V min., +2.5 V max. |
Signal hysteresis | 0.4 V minimum. |
Maximum signal | ±30 V. |
Loading | 100 KΩ to common for +5 V signal |
| 18 KΩ loading beyond |
Load | 1 KΩ ±5% load may be internally |
| jumpered to common or to the excitation |
| supply for each control line. |
Response time | 200 mS maximum: internally |
| debounced for contact closure inputs. |
Active level | Internally jumpered to be active either with |
| low level/falling edge or high level/rising |
| edge inputs independently for each |
| control line. |
CONTROL MODES |
|
Type | The operating mode depends on |
| interlinking of the three control lines. |
One control | To reset and run when active and stop |
| when inactive. |
Two controls | One to run when active and stop when |
| inactive and the other to reset. |
Two controls | One to alternately start and stop and the |
| other to reset. |
Three controls | One to start, one to stop and one to |
| reset. |
Protection | IP65. (Front part only). |
MECHANICAL |
|
Dimensions . . . . . . . . . . . . See table in page 13. Panel cut out . . . . . . . . . . . See table in page 13. Depth . . . . . . . . . . . . . . . . . See table in page 13. Weight . . . . . . . . . . . . . . . . See table in page 13. Case material . . . . . . . . . . . Aluminium extruded.
Finished . . . . . . . . . . . . . . . Anodized, black colour.
ELECTRICAL
Standard power supply | . . . 115 Vac. ±10% 50 / 60 Hz. |
| (230 Vac optionally) |
Consumption | . . . See table in page 13. |
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