UN2000 is used in this application. TEMP/TIME Based
control is designed for BLOOD BANK CHAMBERS . Compressor
is switched ON & OFF considering
SET TEMP & TIME. Compressor is on upto the set
point, below the setpoint it gets.
Once the compressor gets off & if temperature
increases above set point it can get ON only after
the DELAY TIME.
The delay time is also programmable.
THE TIME & TEMPERATURE MONITORING AND CONTROL
LEADS TO OPTIMUM USE OF COMPRESSORS ToO !
Specifications:
Input
Pt100
(3-wire) sensor
DISPLAY
2
Sets of (4+4) digit display
1st for Chamber Temperature & 2nd for Delay
time
RANGE
Temperature
00 to 80.0 °C,Time 1-99 Minutes
RESOLUTION
0.1
°C
COMPRESSOR
SAFETY TIMER
Provided
to avoid frequent on/off
OUTPUT
2
Relays
One relay for Cooling (Compressor), Second relay
for Alarm
SETTING
By
Feather touch membrane key pads
RELAY
RATING
230
Volts / 6 Amp. ( SSR O/P ON REQUEST)
REAL
TIME CLOCK
Non
Volatile Time Keeping RAM ensures correct Clock.
DATA
SECURITY
By
NVRAM, ensures data retention for 10 years.
NOISE
IMMUNIITY
A)
EMI/RMI interface is suppressed by MOV's & R-L-C
filt
B) .WATCH DOG. guards CPU during power transie
