Hydro Logger H1
User manual
28
electronics for ecology
FIEDLER
4.4.
Connecting sensors and transducers
RECORDING CHANNELS
The H1 telemetry station has the ability to record up to 8 measured physical
quantities in its data memory. Each measured quantity occupies one recording
channel K1 to K8. Unoccupied recording channels are not allocated and do not
take up space in the data memory (so-called dynamic channel occupation).
Any recording channel, if it is to be active, must first be set up. Setup is done via
the MOST software either from a PC connected by cable or remotely via a web
browser and special data server services. During setup, one input is assigned to
each recording channel. In special cases, multiple recording channels can have
one common input.
When setting up a recording channel, in addition to the input, the type of mea-
surand, measurement method, units of measurement, number of decimal pla-
ces and other necessary parameters are selected. The setting of recording chan-
nels is covered in detail in the chapter 6.3 Analog channel settings.
4.4.1.
Inputs
The measuring sensors and transducers are connected to the Hydro Logger H1
via terminals on a connection plate located in the bottom of the metal housing
of the instrument to the left of the lithium battery.
Inputs
Type of input
Clamp no.
PV1, PV2
Fast pulse inputs
16 (PV1), 19 (PV2)
PV2, PV4
Slow pulse-binary inputs
21 (PV3), 23 (PV4)
AV1, AV2, AV3
Inputs 0(4)-20 mA
7 (AV1), 8 (AV2), 4 (AV3)
RS485
RS485 (FINET, Modbus RTU)
11 (+485A), 12(-485B)
Despite the small
size of the HydroLogger H1 connection board, all inputs and
power terminals are protected against induced overvoltage by a solid-state surge
protector with the ability to absorb short-term energy pulses of up to 600 W.
In the case of extremely long connection cables (over 100 m) or when installing
the device and connected sensors in high-rise buildings (water tanks), it is advi-
sable to reinforce the surge protection of the inputs with external PO2D surge
protectors.
R e c o r d i n g
c h a n n e l s e t t i n g s
I n p u t s H y d r o
L o g g e r H 1
S u r g e p r o t e c t i o n
o f i n p u t s
Summary of Contents for H1
Page 1: ...Small telemetry station for water applications H1 H2 Hydro Logger user manual version 1 10 ...
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Page 80: ...Hydro Logger H1 User manual 80 electronics for ecology FIEDLER Notes ...
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