catalogue search
P. 01
P. 02
|
|
You may also be interested in
Turbine flow-meter, Water meter, Calculator, Energy meter, Ultrasonic flow-meter
Text version of the page
|
|
|||
|
hďdrometer
|
|||
|
|
|||
|
HYDRANT TESTER
|
|||
|
|
|||
|
MODEL 725:
|
|||
|
|
|||
 |
APPLICATION
□ Hydrant tester for checking the actual amount of water available at the end of the pipe
FEATURES
□ Hydrant tester comprises:
• Hydrant meter WP-F3MB68 DN 80
• Pressure gauge
• Carrying/protective handle
• Input/output with fixed B-coupling
□ FLYPPER electronic counter module
• Protection class IP68
• Mechanical switch for changing the display
• M-Bus interface to EN 1434-3
• No automatic display change
□ Puise output: 100 l/pulse forward, 100 l/pulse return
PULSE OUTPUTS
The outputs are open-collector circuits. The collecter branch contains only 0 ohm résistance, i.e. there is no internai current limiting. If required, this must be provided externally by a collecter résistance of 1 kohm (at 30 V). The puise outputs must be operated in floating mode if the M-Bus is connected.
□ Open collector (high current sink)
□ Max. input voltage: 30 V
□ Max. input current: 27 mA
□ Voltage drop at the active output: max. 2 V/27 mA
□ Current through inactive output: max. 5uA/30V
□ Max. reverse polarity voltage without destruction of outputs: 6 V
□ Max. current 100 mA
□ Puise duration: 125 ms
□ Puise break: min. 125 ms
|
||
|
DISPLAY SEQUENCE
|
|||
 |
|||
|
|
|||
|
Fig.: The counter can be set to permanently display the flow rate by pressing a button.
|
|||
|
|
|||
 |
|||
|
|
|||
|
1
|
|||
|
|
|||