FLOALARM rel. 1.0 Alarm System K4 / K8 User manual October 2003 Messer Cutting & Welding GmbH Lärchenstr. 139a - 65933 Frankfurt / Main – Germany Tel.
TABLE of CONTENTS OVERVIEW..............................................................................................................3 SET-UP ......................................................................................................................4 CONNECTING POWER SUPPLY ..................................................................................4 CONNECTING INPUTS ...............................................................................................
OVERVIEW FLOALARM is especially conceived to monitor alarm conditions in compressed gas storages and supply pipelines. Two types are available: K4 with four alarm inputs and K8 with eight alarm inputs. All alarm inputs are compatible with popular switch sensors and inductive proximity sensors type Namur. The alarm status is testified by visual and acoustic signals. Visual signals include 4 (8) red leds, associated to each alarm input.
SET-UP WARNING ! – For safety reasons, the installing operations must be performed in accordance with the instructions of this manual, by qualified operators only; disconnect power supply line from the equipment before opening the housing. The manufacturer rejects whichever responsibility for accidents or damages due to negligence of these recommendations. Connecting Power Supply Use 1.5 mm2 section cables. Put a 2 A bipolar security interrupter on the power supply line.
PROGRAMMING Programming parameters can be set or modified by the pushbuttons on the front panel. You can set operation and delay of each alarm input, besides buzzer and relay output operation. Tables below show the alarm condition related to the input operation and delay for both sensor types and supply some suggestions about remaining setting.
Push and hold TEST pushbutton: system starts test and programming check cycle then, after about 10 seconds, switches OFF all leds. Release TEST button after leds switch off: the system enters the programming mode and begins step 1 of the programming sequence.
WORKING Alarm management The standard alarm sequence includes three steps: Case 1: acknowledgement before the end of the alarm event 1. Start of alarm event: input switches from normal to alarm condition. Buzzer switches on and the corresponding alarm led becomes blinking, indicating an unacknowledged alarm status. 2. Alarm acknowledgement: user pushes CANCEL HOOTER pushbutton. Buzzer stops and alarm led switches from blinking to fixed, indicating an acknowledged alarm status. 3.
Test and Programming check Pushing Test button, system turns on all alarm leds, relay and buzzer for three seconds (standard test), then shows current programming parameters through the signaling sequence described in table below.
Summary of operations Visual and acoustic signals in working mode DEVICE Alarm led 1(…. 8) Buzzer STATUS CONDITION OFF Blinking fixed lighted flashing (all alarm leds) OFF ON Normal condition 1(…. 8) Unacknowledged alarm 1(…. 8) Acknowledged alarm 1(…. 8) No or invalid setup parameters No or acknowledged alarms / Disabled One or more unacknowledged alarms Buzzer operation BUZZER SETTING OPERATION IN ON STATUS Continue tone Pulse tone Disabled always ON 0.5 sec ON / 1.
Mechanical information 10
Electrical connections Warning Each sensor must be directly connected to the corresponding screw connector only and using both wires. Avoid connections different from that shown in diagram above.
TECHNICAL CHARACTERISTICS INPUTS specifications V(max) = 15 Vdc; I(max) = 20 mA INPUTS compatibility Standard mechanical switch sensors Solid state PNP / NPN switch sensors, DC only Inductive proximity sensors type NAMUR RELAY OUTPUT V(max) = 220 Vac; Imax = 1 A NO and NC contacts available SUPPLY VOLTAGE 220 Vac / 50-60 HZ, P(max) = 8 VA Fuse 220 V / 0.
