TILLQUIST LT10 User manual

Manual LT10
Rev: EN2020-11-30
USER MANUAL LT10
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 LT10 från Hugo Tillquist AB!
The LT10 is a 1-channel configurable transducer for measuring AC
voltage, current and frequency. The analogue output is freely
configurable within the range 0–20 mA, the supply voltage for a very
wide range and both inputs and outputs are galvanically isolated.
The configuration is easy and quick without needing a supply voltage
using our free ConfigLQT software.

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Table of contents
1Product description...........................................................................................1
1.1 Technical data ...........................................................................................1
2Instructions........................................................................................................3
2.1 Mounting...................................................................................................3
2.2 Installation.................................................................................................3
2.3 Operation ..................................................................................................3
2.4 Warning!....................................................................................................3
2.5 Maintenance .............................................................................................3
2.6 Inputs - Outputs ........................................................................................4
2.7 Symbols on the appliance .........................................................................4
2.8 ConfigLQT software...................................................................................4

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1Product description
The LT10 is a configurable 1-phase transducer which comes in 2 different variants: LT10I
for measuring of AC current8 and frequency and LT10-U for measuring of AC voltage and
frequency. The configuration is easily done via its USB-port with use of our free software
ConfigLQT.
1.1 Technical data
Model
LT10-U
Inputs
Voltage
P/N: LT10U-110000
Voltage range (Un)
50 –500 V main voltage (nominal)
Measuring range
0,15 –600 V TRMS
Configurable measuring range
0 –500 V
Frequency
10…40…70…120 Hz
Voltage
P/N: LT10U-110050
Voltage range (Un)
12,5 –125 V main voltage (nominal)
Measuring range
0,003 –160 V TRMS
Configurable measuring range
0 –150 V
Frequency
10…40…70…120 Hz
Voltage
P/N: LT10U-110053
Voltage range (Un)
12,5 –125 V main voltage (nominal)
Measuring range
0,003 –160 V TRMS
Configurable measuring range
0 –150 V
Frequency
0…15…18…120 Hz
Supply voltage
Power supply
24 –250 VDC
80 –250 VAC, 50/60 Hz
Burden
max 6 VA
Outputs
Analogue
Analogue outputs
1 pc
Range
+/- 20 mA (programmable)
0…1 mA (klass 0.5), 0…5 mA, 0…10 mA,
0…20 mA, 4…20 mA
External resistance load
max 750 ohm (15V)
Response time
< 100 ms
Individual characteristic
5 points
General data
Overload voltage
1.2 x Un –continuously, 2 x Un –10 s
Measuring range F
10 –120 Hz
Configurable measuring range
0 –120 Hz
Consumption
< 0,5 VA

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Model
LT10-I
Inputs
Current
P/N: LT10I-110000
Current (In)
1 –5 A
Measuring range
0,005 –12 A TRMS
Configurable measuring range
0 –10 A
Frequency
10…40…70…120 Hz
Current
P/N: LT10I-110003
Current (In)
1 –5 A
Measuring range
0,005 –12 A TRMS
Configurable measuring range
0 –10 V
Frequency
10…15…18…120 Hz
Supply voltage
Power supply
24 –250 VDC
80 –250 VAC, 50/60 Hz
Burden
max 6 VA
Outputs
Analogue
Analogue outputs
1 pc
Range
+/- 20 mA (programmable)
0…1 mA (class 0.5), 0…5 mA, 0…10 mA,
0…20 mA, 4…20 mA
External resistance load
max 750 ohm (15V)
Response time
< 100 ms
Individual characteristic
5 points
General data
Overload current
2 x In –continuously, 10 x In –15 s, 20 x In –1 s
Measuring range F
10 –120 Hz
Configurable measuring range
0 –120 Hz
Consumption
< 0,5 VA
Models
LT10-I & LT10-U
General data
Acurracy class
0.2
Overvoltage category
CAT III
Galvanic isolation
All coonections are galvanically isolated
USB
1 pc for configuration
Temperature range
-10 to +55 °C (operation), -40 to +70 °C (storage)
Temperature coefficient less than 0.1% / 10 °C
Humidity
< 80%
Test voltage
5,6 kV, 50 Hz, 1 min. input
3,7 kV, 50 Hz, 1 min. AUX
Pollution degree
2
IP class
Housing IP40, terminlas IP20
Dimensions (W x H x D)
35 x 109 x 126 mm –DIN-rail
Mounting
Indoors - Up to 2000 meters height
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 6 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. The unit must be
protected against possible overcurrent by automatic circuit breaker.
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
2.7 Symbols on the appliance
Double insulated device
Warning for life-threatening or hazardous for properties situations
2.8 ConfigLQT software
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.