Clock, Date and Thermometer
with 7 segment output
CD-26
Technical characteristics
Power ........................................................12 V. D.C.
Minimum / Maximum consumption. ...........150 mA / 520 mA.
Maximum consumption battery. ................33 mA.
Time display. ..............................................Format 24 H, (hours, minutes and sec.)
Temperature min / max. ............................-23ºC / 105ºC. | -9,40ºF / 221ºF.
Temperature Resolution. ...........................1ºC .
Alternative timing for data visualization. ....1 a 8 sec.
Logic Outputs. ...........................................7 Segment / TTL-CMOS.
Reverse polarity protection (PIP). ............ Yes
It is a clock with date and thermometer with Type 7 segment outputs. Especially suitable for displays: CD-23, CD-24, CD-53 and CD-54.
Select a functioning solely as a clock or combination with the date and / or temperature, with adjustable flash.
Supports be configured to display temperature in
Celsius or Fahrenheit
.
Incorporates input auxiliary battery in case of power failure, temperature probe and leds
POWER :
12VDC power supply we recommend Cebek ref. FE-123, which adapts to the needs of the circuit. A positive and negative
input clamp.
Install a fuse and a switch for the protection and safety, as reflected CE standards.
Battery input :
The module has an input for 12 VDC battery. In case of loss of power supply, the circuit will switch to this entry
consumption, ensuring the maintenance and monitoring of operations of the circuit.
While the module will serve as input battery to minimize the consumption, turn off the displays, using only the minimum functions to
continue operations module. Once power is restored, the displays light up again without losing the continuity of operation.
The input circuit has no battery charging, so you should periodically check the status of it.
At installation, connect the positive and negative battery to the corresponding input of the module. Observe the polarity indicated.
Connection page PROBE :
The cable length between the probe and the basic circuit is decisive for optimum accuracy. The maximum
distance that the module supports, is 100 cm. For this connection I used shielded cable, using the mesh connecting the terminal with
the ground symbol. For distances less than 40 cm. You can use standard cable.
Do not change, alter or adjust the variable resistor circuit indicated as "Sensor Adjust", otherwise destabilize the factory settings and
therefore cause the temperature error.
PUSH INSTALLATION :
Install two buttons at the entrances: ENTER and SELECT. The distance of the cable should not exceed 50 cm.
FUNCTIONS. SETTING TIME AND TEMPERATURE CORRECTION :
To start time setting, press and hold Press the "Enter" and then
turn the power circuit. After 3 sec. the two displays of the minutes start blinking and you can release the button "Enter".
The two displays that remain unblinking, (h), are those that may change. Per-click Enter, it will increase by one. If you keep Enter
pressed briefly, the increase will occur progressively faster.
To finish setting the time and start the minutes, briefly press the "Select", the corresponding displays the minutes be fixed and you can
modify the same way as on the hour. Completed setting the hour and minute, a new press on Select will display temperature correction
appear.
According to the different conditions where the CD-26 gets installed and while the module is factory set, a small margin of error may
occur between the actual temperature and collected by the display. To correct this error, you can increase or decrease to 5 degrees
based circuit temperature.
After setting the minutes, as we specified above, when press Select only illuminate the display units, indicating that the display has
entered temperature correction. I factory is set to zero. Each press of Enter, will increase by one degree. From 5, each press will
decrease a degree to get back to zero.
Finally a last-click Select record the changes in the circuit and return the module to normal display data.
