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Sensus FM-1D/K Operating Instructions

Frequency converter
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Operating Instructions
Frequency Converter FM-1D/K
Digital-analogue-converter
and flow rate indicator for water meters
1. Description
FM-1D/K is a µP-controlled frequency
converter with display.
It converts pulses into proportional cur-
rent for flowrate display.
Input from the pulsers are converted to:
• Standardized current
• Pulse totalization
• LED display
Contents
1. Description
2. Mounting
5. Protection
7. Operation
10. Replacing fuses
2. Mounting
85
N
PE
24 VAC/DC
60
50
-
+
+ Sensor -
U+
Snap action on
35mm top hat
rail acc. to EN
50022
remove from
top hat rail
12345678
+
-
FM-1D/K
Wall mounting
select
with two screws
M4
M5

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Summary of Contents for Sensus FM-1D/K

  • Page 1: Table Of Contents

    7. Operation 8. Lightning protection 9. Trouble shooting 10. Replacing fuses 1. Description 2. Mounting FM-1D/K is a µP-controlled frequency converter with display. It converts pulses into proportional cur- Snap action on 35mm top hat rent for flowrate display. rail acc. to EN...

  • Page 2: Connection

    • check power supply voltage before using power supply. • with 24 VDC operation, the polarity is irrelevant The connection of the FM-1D/K is only allowed by • Technical Data please see leaflet L S 5100 GB a specialist in accordance to the common safety standards.

  • Page 3: Test Mode

    *) from serial no. 105.000 5. Protection 6. Test mode Test The FM-1D/K can be protected against unintentional In the test-mode the digital and ana- changes to the setting. In the protect-mode all settings logue output of the FM-1D/K can be and measuring values can be displayed.

  • Page 4: Lightning Protection

    7. Standard mode 8. Lightning protection Rapid flashing of all status LED’s indicates incoming To protect the FM-1D/K from voltage surges caused by pulses. lightning, installation of an adequate lightning protection device is recommended. The permanently illuminated status LED indicates the measuring units on the display.
  • Page 5 F 111fuse 32 mA medium Opto OD, “InPr” for F 112fuse 32 mA medium Reed RD. Layout and Fuses Sensus Metering Systems GmbH Hannover Meineckestrasse 10, 30880 Laatzen, Germany D+49 (0) 5102 74 0 F +49 (0) 5102 74 3341 info.de@sensus.com www.sensus.com...

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