CHAPTER 1
INTRODUCTION AND GENERAL CHARACTERISTICS
1-2
DC-20 and DC-21 operation manual
1.1.
Characteristics of the DC-20 and DC-21 displays
Supply Voltage
........................................... 88 to 264 VAC 47 to 63Hz.
Consumption DC-20S and DC-21S
.......... 12VA.
Consumption DC-20S and DC-21S
.......... 24VA.
Display
....................................................... 7 segments, 100mm high + decimal point.
..................................................................... LED colour red, blue, white or green depending on
..................................................................... the model
..................................................................... Viewing distance: max 50 meters.
Text
............................................................. Silkscreen with maximum limits.
Environmental Conditions
........................ Operation Temperature: -19.9 to 60ºC.
..................................................................... Storage temperature: -20ºC to 70ºC.
..................................................................... Humidity: 5-95% RH non condensing.
..................................................................... Maximum environmental illumination: 1000 lux.
..................................................................... Sealing: IP41 .
1.2.
Temperature and humidity sensor characteristics.
Temperature sensor
Resolution
.......................................... 0.1°C
Precision
............................................ ±0.5° at 25°C
Response time
................................... 20s
Working range
................................... -20°C to 70°C
Humidity sensor
Resolution
.......................................... 1%
Precision
............................................ ±3.5% between 30% and 70%
Response time
................................... 4 s
Environmental Conditions
..................... Sealing: IP65.
Sensor cable length
……………...…...….5 meters.
