TILLQUIST LQT60 User manual

Manual LQT60
Rev: EN2020-11-30
USER MANUAL LQT60
HUGO TILLQUIST AB
Box 1120
SE-164 22 KISTA
Sweden
Tel: [phone]
[email protected]om
www.tillquist.com

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Thank you for choosing LQT60 from Hugo Tillquist AB!
The LQT60 is a configurable multitransducer for all electrical quantities.
All areas for AC current and voltage (True RMS) are covered by one single
unit. With its 5 analog and 2 digital outputs together with RS485, it offers
almost unlimited possibilities.
Our free transducer configuration software “ConfigLQT” is used to easily
configure the LQT60 via its USB-port.

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Table of contents
1Product description...........................................................................................1
1.1 Technical data ...........................................................................................1
2Instructions........................................................................................................2
2.1 Mounting...................................................................................................2
2.2 Installation.................................................................................................2
2.3 Operation ..................................................................................................2
2.4 Warning!....................................................................................................2
2.5 Maintenance .............................................................................................2
2.6 Inputs - Outputs ........................................................................................3
2.7 Symbols on the appliance .........................................................................3
2.8 Installation of ConfigLQT...........................................................................3

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1Product description
The LQT60 is a configurable 3-phase multi-transducer, capable for measuring any
electrical quantity of a network. It is possible to choose up to 5 of any electrical
quantities and link them to the analog outputs. Its 2 transistor outputs can be used to
energy pulses or alarm levels.
1.1 Technical data
Inputs
Voltage
Input (Un)
100 –400 V main voltage (nominal)
Measuring range
0 –500 V TRMS
Overload
1.5 x Un –continuously, 2 x Un –10 s
Consumption
Un x 1 mA per phase
Frequency
10…40…70…120 Hz
10…15…18…120 Hz (option för 16⅔ Hz)
Current
Input (In)
1 –5 A
Measuring range
0 –10 A TRMS
Overload
2 x In continuously, 10 x In 15 s, 40 x In 1 s
Consumption
< 0.05 VA / phase
Aux Supply
Universal current
24 –250 VDC
80 –250 VAC
Consumption
max 8 VA
Outputs
Analog
Quantity
5 pcs
Range
+/- 20 mA, +/- 10 V (option)
Load
max 750 ohm (15V)
Response time
< 100 ms
Digitala
Quantity
2 pcs transistors 110V AC/DC, 100 mA
General data
Accuracy class
0.2
Overvoltage category
CAT III
Max rated values
519 V (L-L) / 300 V (L-N), 10 A
Galvanic insulation
All connections are galvanically separated
USB
1 pc for configuration
Temperature range
-10 till +55 °C (operation), -40 till +70 °C (storage)
Temperature coefficient < 0.1% / 10 °C
Humidity
< 80%
Test voltage
4 kV, 50 Hz, 1 min.
Pollution degree
2
IP class
Housing IP40, terminals IP20
Dimensions (W x H x D)
150 x 70 x 73 mm –DIN-rail
Mounting
Indoors - Up to 2000 meters height
Weight
~0.5 kg
Standards
SS-EN 60688 Transducers
SS-EN 61010-1, 61010-2-030 Safety
EN 61000-6-2, -6-4, -6-5 EMC

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2Instructions
2.1 Mounting
The transducer is mounted on a 35mm DIN rail on a wall or device cabinet for suitable
protection. The enclosure shall not be accessible without tools.
2.2 Installation
The installation is to be made by competent personnel and in accordance with
applicable regulations. Before installation please check that the transducer has the
correct type and complies with the installation needs. The connection to the transducer
is done through the terminals that are designed for a maximum of 2 x 2,5 mm² cable in
accordance with connection diagram. An external switch shall be used so that the unit
can be deenergized during disassembly. It shall be appropriately positioned, easy to
reach and marked as a switch for the transducer. The measuring circuits from the
current transformers must be short-circuited before disconnection.
2.3 Operation
The transducer is intended for operation at an altitude not exceeding 2000m and in an
environment that is not considered as wet location.
2.4 Warning!
Connection must comply with current regulations for systems with rated voltage up to
1000 V.
Before switching on or off and if the housing is removed, all voltages to the appliance
must be switched off.
2.5 Maintenance
The transducer requires no maintenance. Any repairs shall be performed by trained
personnel or the appliance shall be returned to the supplier for repair.
Function and safety are only guaranteed if the instructions in this manual are followed.

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2.6 Inputs - Outputs
Inputs
Analog outputs
Nr
Chanel
Nr
-/+
U1
2
A1
21
-
U2
5
22
+
U3
8
A2
23
-
N
10
24
+
A3
25
-
IN
OUT
26
+
I1
1
3
A4
27
-
I2
4
6
28
+
I3
7
9
A5
29
-
30
+
AUX
SUPPLY
17
18
Digital outputs
D1
13 / 14
D2
15 / 16
2.7 Symbols on the appliance
Double insulated device.
Warning for life-threatening or hazardous for properties situations.
2.8 Installation of ConfigLQT
ConfigLQT is our free software which is used to configure our transducers. If you want to
read more about it, check our ConfigLQT manual. There you can find detailed info
regarding installation, configuration and firmware upgrade as well as connection
diagrams, examples of settings etc.