Hydraulic Flow Measurement

HydraulicCalculator 2New

Part No. HC2

Flow calculator for calculating discharge rates at backwater or sills.

Flow calculator for calculating discharge rates at backwater or sills with tangential flow or weirs as well as special structures.

HydraulicCalculator 2

Implemented calculation of discharge rates
Direct connection of 2- and 3-wire sensors possible
Ex Zone 1 (option)
Convenient menu-guided operatio

Problem solver for many hydraulic tasks

The HydraulicCalculator 2 has integrated calculation algorithms for calculating discharge rates at side weirs or weirs tending to backwater and compensates for the hydraulic calculation errors that occur when calculating discharge rate measurements according to Poleni. Supplementary calculation methods such as slot discharges with or without backwater, discharge under gates, storage level corrections at weir gates etc. complete the service profile. The metal-encapsulated and compact enclosure offers tool-free installation and assembly. Two analogue outputs and two relays are also integrated into the HydraulicCalculator 2.

Parameter settings are carried out conveniently using the rotary pushbutton in a menu-guided dialogue via a large, backlit colour graphic display.

An easy selection of the calculationrelevant parameters is just as much a matter of course as the implemented diagnostic tools for inputs and outputs, transmitter status, parameter changes, etc.. All required measurement and calculation values are displayed in clearly visible numerical values..

Typical Applications

Weir sills tending to backwater
Side weirs with tangential flow
Slot gates with and without backwater
Movable overflow weir flaps
Movable gates with underflow
Special applications with customised flow curve
and many more

Allgemein
Power supply	100...240 V AC, -15 % / +10 %, 47...63 Hz or 10...35 V DC
Power supply connection	AC: Plugged and screwed on spring-cage terminal block DC: Plugged spring-cage terminal block
Maximum power consumption	AC: 30 VA / DC: 20 W
Typ. power consumption	230 V AC: 14 VA / 6.8 W 24 V DC: 6.2 W
Enclosure	DIN Rail Material: Aluminium and Plastic Weight: approx. 1300 g
Protection	DIN Rail IP20
Operation conditions	Protection Class I Overvoltage Category II Pollution Degree 2
Operation altitude	AC unit for use at altitudes up to 3000 m above MSL. For relay voltages >150 V, use is restricted to altitudes up to max. 2000 m above MSL (AC and DC units)
Operating temperature	DC: -20...+70 °C AC: -20...+65 °C
Storage temperature	-30...+80 °C
Max. ambient temperature for installation and operation	+50 °C
Max. humidity	80 %, non-condensing
Display	Daylight-compatible TFT colour graphic display 240x320 pixel 65536 colours
Parameterisation / Programming	Menu-driven using rotary pushbutton an two function keys, in English, German and French
Connection	General: Plugged spring-cage terminal block AC Power Supply: Plugged and screwed on spring-cage terminal block
Inputs	2x 0/4 – 20 mA, (1x HART-compatible) 2x digital input
Outputs	2x 0/4...20 mA, load 500 Ohm, 12-Bit resolution, accuracy higher than ±0.1 % at 20 °C (higher ±0.4 % at -20…+70 °C) 1x bistable relay (SPDT), loadable up to 230 V AC / 2 A (cos j 0.9), minimum switching current 100 mA 1x relay (SPDT), loadable up to 230 V AC / 2 A (cos j 0.9), minimum switching current 10 mA
Data memory	Internal 1.0 GB, for parameterisation/programming and measurement backup for approx. 570,000 data sets (time stamps); can be read via front-side USB stick
Storage cycle	30 seconds to 15 minutes
Communication	Modbus TCP via networks (LAN/WAN) Modbus RTU via RS485 or RS232 SMTP/FTP/HTTP

Specifications subject to change.

Data Sheet | HydraulicCalculator 2

download file
PDF 3 MB

Instruction Manual | HydraulicCalculator 2 (Rev. 01)

download file
PDF 3 MB

EU Declaration of Conformity | permanent flow calculator

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PDF 163 KB

Tender Specification | HydraulicCalculator 2

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DOC 56 KB

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