FIEDLER H1, Руководство пользователя

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Hydro Logger H1 User manual
FIEDLER
electronics for ecology
31
CALCULATION AND DISPLAY OF LEAKED VOLUME
The number of pulses per archiving interval is stored along with the pulse weight
in the instrument's data memory. From these stored partial flow volumes, the
Hydro Logger H1 continuously calculates the total flow volume. The amount of
leaked volume since the instrument was installed (or since the channel was initi-
alized) is displayed in cyclic mode on the instrument display below the instanta-
neous flow rate.
CONNECTING THE TERMINALS OF THE CONNECTION PLATE
The pulse inputs are located in one bottom row of the instrument connection
board terminals, along with the OPTO sensor power terminals and common
GND ground terminals. The top row of terminals is reserved for connection of
analog current signals and two terminals for bringing in external supply voltage.
Typical
con-
nection of water meter sensors and ON/OFF contact to H1 pulse inputs
SLOW PULSE-BINARY INPUTS PV3, PV4
The two slow pulse-binary inputs are mainly intended for connection of status
sensors for pumps, blowers, building security outputs or for connection of the
output signal of a rain gauge. However, they can also be used to monitor the
pulse REED of water meter sensors with a frequency of max. 1 pulse / 2 sec.
The minimum pulse length at the PV3 and PV4 inputs must be at least 70 mS to
safely record the pulse in the device memory.
The required input type (pulse or binary) is determined by parameters when
setting up the station.