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Rainfall records
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Rainfall records 

 


▲ Fig.01　Rainfall recorder front



 
▲ Fig.02　Chart picture
　

 
▲ Fig.03　Counter panel


▲ Fig.04　Writing pen picture



▲ Fig.05　Rainfall recorder back side



▲ Fig.06　External power terminal part


① Outline
　1) It is a magnetic rain recorder that records movement of 1 division per 1 pulse signal input from the rain gauge.
　2) It is possible to use 0.5mm and 1.0mm for both rain gauge and rain gauge.
　3) It is a graph type recorder that records for a long period of time (3 months)
　when only the pulse signal is input from the rain gauge without external power supply.

② Characteristic
　1) The recorder in the observation station is an auxiliary equipment for communication equipment that can check 　
　the presence or absence of abnormalities in the transmission equipment, and has the advantage of being able to 
　easily check all information from the recorder when a transmission error occurs.
　2) Since it operates with a separate power source and signal from the transmission signal within the observatory, 　
　data loss does not occur even in the worst case.

③ Operating principle
　1) Recording paper transfer is operated with one battery R14 (1.5V),
　and pen movement is operated with two 4R25 (6V) units.
　2) When the recording pen inputs 1 pulse signal, the front panel records
　1 count and the recording paper records 1 scale.
　3) After moving 50 squares, the recording paper automatically reverses and continues recording.
　4) Recording paper transfer is automatically carried out by 1 square (6mm) per hour.
　5) The record sheet is recorded for 3 months with one insertion.

③ Power supply
　1) Power is supplied with one R14 (1.5V) and two 4R25 (6V), and the power input cord is protruded for user 
　convenience so that it can be used as an external power source.
　2) The lantern battery can be used for one year by inserting it once.

④ Specifications
　1) Body dimensions : 300×350×280 (W×H×D mm). Dust-proof and moisture-proof round aluminum case
　2) Standby power : 0 Volt, DC 12V (2 lantern batteries, 1 year use)
　3) Recording paper width : Mark 50 mm in 50 equal parts
　4) Recording pen : Cartridge-type marker pen (available for more than 3 months)
　5) Recording method : 1 Pulse 1 mm Graph type (Pen movement in reverse order from left to right end line)
　6) Recording period : 1 hour, 1 square (6mm) downward winding (recording continuously for 3 months)
　7) Record transfer : 1.5V (R14) 1ea 6 months use crystal oscillation rotary type
　8) Test : Upward lamp lighting, downward pen movement switch (record line adjustment)
　9) Counter : 0 ∼ 9999 Counter (Reset function)
　10) Others : Recording sheet every 3 months, simultaneous exchange of
　watch battery (R14 1.5V) (pilgrimage inspection obligatory)

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