FLS K315U User manual

K315U - Frequency Output & MIN alarm KIT for Ultra
Low Flow Sensor
INSTRUCTION MANUAL
EN 03-04
Table of Contents
1. Introduction………………………………………………………………… 2
1.1. Safety Instructions………………………………………………………………. 2
1.2. Unpacking………………………………………………………………………… 2
2. Description……………………………………………………………….… 2
3. Specifications…………………………………………………………….... 3
3.1. Technical Data…………………………………………………………………… 3
3.2. Dimensions……………………………………………………..……………..…. 3
4. Installation………………………………………………………………….. 4
4.1. Sensor Assembly………………………………………………………………… 4
4.2. Wiring………………………………………………………………………………. 5
5. Calibration………………………………………………………………….. 7
5.1. Calibration Mode………………………………………………………………... 7
5.2. Operative Mode……………………………………………………………..…… 7
6. Troubleshooting………………………………………………………..…. 8
7. Ordering Data……………………………………………………………… 8
K315U – Frequency Output & MIN Alarm
1

1. Introduction
1.1. Safety Instructions
General Statements
 Do not install and service the device without following the Instruction Manual.
 This unit is designed to be connected to other instruments which can be
hazardous if used improperly. Read and follow all associated instrument
manuals before using with this sensor.
 Installation and wiring connections should only be performed by qualified staff.
 Do not modify product construction.
Installation and Commissioning Statements
 Remove power to the device before wiring any connection.
 When the unit is powered and the cover is open, protection against electric
shocks is not ensured.
 Do not exceed published specifications using this instrument.
 To clean the device, use only chemical compatible products.
1.2. Unpacking
Please verify that the product is complete and without any damage. The following
items must be included:
• K315U – Frequency Output & MIN Alarm KIT for Ultra Low Flow Sensor with
PVC plate included
• Instruction Manual
2. Description
This Kit consists of an additional IP65
housing mounted aside the sensor via a
PVC plate. It is equipped with an open
collector frequency output and a
mechanical SPDT contact. The MIN alarm
set-point can be freely set by a
potentiometer up to 21 l/h (0.09 gpm) for
ULF01 and 53 l/h (0.23 gpm) for ULF03.
When the flow velocity drops below the
adjusted limit the relay output opens and
the Local Status Indicator changes colour.
It has been designed to protect a pump
from running dry or pumping against a
closed valve in the main pipeline.
K315U – Frequency Output & MIN Alarm
2

3. Specifications
3.1. Technical Data
Associated Flow Sensor: Hall effect (ULFXX.H)
Supply voltage: 12 to 24 VDC regulated
Output signal: square wave
Output type: transistor NPN open collector
Output current: 10 mA max.
Relay Output: mechanical SPDT contact, 3 A @ 30 VDC, 3 A @ 230VAC resistive load
Flow trip point: freely adjustable
- up to 21 l/h (0.09 gpm) for ULF01
- up to 53 l/h (3.34 gpm) for ULF03
Local Status Indicator: GREEN Led = Flow RED Led = No Flow
Enclosure: IP65
Operating temperature: 0 to 60°C (32 to 140°F)
Relative humidity: 0 to 95% non-condensing
Housing material: PVC
Standards & Approvals
Manufactured under ISO 9002
CE
3.2. Dimensions
K315 KIT
K315U – Frequency Output & MIN Alarm
3

ULF3.15 Sensor with O.C. output & MIN alarm
. Installation
4.1. Sensor Assembly
crew down completely the sensor onto the PVC plate and connect electric cables
4
S
according to specifications.
K315U – Frequency Output & MIN Alarm
4

4.2. Wiring
top cover to reach the electrical connections. All wiring connections to
K315U are made via removable terminals.
wer supply is switched off before working on the device.
 Terminals accept 26 to 12 AWG (0.08 to 2.5 mm2)
al.
 per part of the terminals for an easy cabling.
Sensor Wiring Diagram Power Wiring Diagram
Unscrew the
General recommendation
 Always ensure the po
 Strip around 10 mm (0.4”) of insulation from the wire tips and tin bare ends to
avoid fraying.
 Ferrules are suggested when connecting more than one wire to a single termin
Remove the up
 Insert wire tip or ferrule completely into the terminal and fix with the screw until
finger tight
K315U – Frequency Output & MIN Alarm
5

Frequency Output Wiring Diagram
elay Wiring Diagram
The alarm is OFF during
ormal operation.
tor
The FlowX3 monitor does not
provide power supply to the K315U
onnection to a PLC/Instrument with separate power supply
R
n
In alarm condition the
Local Status Indica
(LED) is RED.
Connection to FlowX3 Instruments
KIT.
External power supply is required.
onnection to a PLC with built-in power supply C
C
K315U – Frequency Output & MIN Alarm
6

5. Calibration
Mode
FF position.
esponding to your Alarm
ondition (it should be as stable as possible).
3.
5.1. Calibration
1. Switch 1 must be in O
2. Induce in the pipe the flow rate corr
c
Turn the potentiometer (clockwise) until the led becomes
reen (not necessary if the led is already green).
4. ise
2
1
g
Turn the potentiometer in the opposite direction (anti clockw ) until the led turns
d. You must stop turning the potentiometer as soon as the led turns red.
5.
position.
most
uitable switch delay:
ct the 3 second
switch delay
• select the 10 seconds switch delay
n seconds.
re
Now the Alarm calibration is complete.
5.2. Operative Mode
Switch 1 must be in ON
Switch 2 can be used to select the
s
• OFF position to sele
ON position to
The electronics recognise switch 2 modification after te
2
1
2
1
K315U – Frequency Output & MIN Alarm
7

K31
8
www.flsnet.it
5U – Frequency Output & MIN Alarm
6. Troubleshooting
Problem
Reason Solution
o nal
• No or wrong power supply
Incorrect handling of O.C.
• r doesn’t turn
Ve
Power supply (sec. 4.2. Wiring)
ections between K315U and
• inal
ing)
N output sig
•
output
• Incorrect cabling
The roto
rify :
•
• Conn
other electronic devices
(sec. 4.2. Wiring)
Wire insertions into in term
holes (sec. 4.2. Wir
• Flow velocity: it must be ≥
0,15m/s
•
• Incorrect setting alarm
rify :
•
• Wire
holes (sec. 4.2. Wiring)
• Unit Calibration
(sec 5. Calibration)
Relay no activated
• No or wrong power supply
Incorrect cabling
Ve
Power supply (sec. 4.2. Wiring)
insertions into in terminal
. Ordering Data
using Gaskets Enclosure Description
7
Part No. Ho
U Frequency Output &
MIN Alarm KIT
LF.K315U PVC EPDM IP65
F.I.P. Formatura Iniezione Polimeri S.p.A.
Loc. Pian di Parata, 16015 Casella (GE) – Italy
Tel [phone] – Fax [phone]