52
Digital Astronomic Timer
SECTION 1 GENERAL FEATURES
1.1 General Features
Meastro is an astonomic time relay which calculates sunrise and sunset times for the given
coordinates or city selections and turns the relay contacts on and off to control connected systems
without any need of photocells or external sensors. Meastro can be used as digital time relay as well.
100 different programmes can be saved to device memory, relay operations are made according to
these programmes. A 100 year calendar, sunrise and sunset times are recorded to device memory.
The internal battey of the device has 7 years of lifetime. If any power outages occur, the device
continues to operate the programme but cannot operate relays or transfer data via remote control.
The internal battery prevents data loss due to power interruptions.
Table 1-1 Selection Table
Device Model
Meastro 121
Meastro 221
Meastro 321
Meastro 122 Meastro 222
Meastro 322
Order Number
270 702
270 703
270 704
270 705
270 706
270 707
Mounting
Rail mount
Rail mount
Rail mount
Rail mount
Rail mount
Rail mount
Digital Program
✓
✓
✓
✓
✓
✓
Astronomical Program
-
✓
✓
-
✓
✓
Prayer Program
-
-
✓
-
-
✓
Number of Relay
2
2
2
2
2
2
Communication
IR
✓
✓
✓
-
-
-
RS-485
-
-
-
✓
✓
✓
The device’s default language is English. To set the language in Turkish, press and hold the
button for
4sec, while on the main screen.
Содержание 270 702
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