Doppler Weather Radar - METNET - India Meteorological Department

MONITORING OF DWR SYSTEM
CHAPTER 1
In the process of operation of Doppler Weather Radar, the operator must be familiar with both
hardware and software functions. These two functions could not be exclusively presented
separately in two separate chapters. But, most of the functions regarding hardware are presented
in chapter 1 and software in chapter 3. Initially, safety of personnel and equipment is discussed
in this chapter.
1.0 Safety of personnel, equipment, first aid and emergency rescue
While going to Radome:
Antenna Servo Power and TX Radiation Power are to be put OFF through IRIS MENU
As a safety precaution, the MCB (QF9) & HV in Tx Cabinet is to be switched OFF.
While going to Terrace:
RF Radiation is to be switched OFF through IRIS MENU
1.0.1 Safety Precautions for all the A/C Plants
1. While Switching OFF AC plants trip all associated components of radar which needs
to be operated under optimum temperature.
2. Switch OFF the AC plants/devices.
3. Switch OFF the cooling fan units if not an integrated system with AC compressor.
4. While switching ON the AC plants, the cooling fans will immediately start, wait till the
timer sequence completes in bringing on the Compressor. This indicates the proper
powering ON of AC.
5. Only when Radar room temperature is maintained at optimum values (Around 20 deg
C) radar sub-systems are to be switched ON.
1.0.2 Safety precautions for UPS
1. Ensure Battery voltage is full.
2. Check for battery conditions and sufficient airflow.
3. Have a check on the cabinet and room temperature.
4. During Servicing/ Maintenance of UPS-shut down all loads and gradually increase the
load during startup.
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