ALTERNATE AND DIRECT VOLTAGE
EN
GENERAL FEATURES
The Z202-LP module is a loop-powered voltage transmitter that measures the alternate
(mean value adjusted to the rms value) and direct voltage input value and converts it into a
current signal output. The instrument stands out for its precision class, low power
consumption and wide range of configuration options.
These are its general features:
Voltage input up to 500Vac in 5 preset ranges, which can be selected by DIP-switch.
Each range can be set and extended to the next one, and it's possible to calibrate the
instrument on any intermediate point in the continuous range of 0..500 Vac, without
either over-setting the fixed ranges, or opening the instrument (multi-rev trimmer
accessible from front panel).
High precision class: 0.3 (on 300 Vac of maximum range).
Wide range of frequency input (20 Hz..400 Hz).
Extremely short response time (< 100 ms).
3750 Vacgalvanic insulation between voltage input and output ports.
Low output ripple and fast response time to input change.
TRANSMITTER Z202-LP
TECHNICAL SPECIFICATIONS
Input Specifications
Voltage input: Alternate voltage 0..500 Vac; direct voltage 0..540 Vdc; see
the range selection table.
Maximum Voltage: 710 Vpk range independent.
Frequency:
Consumption: < 1mA for any input voltage.
Insulation: 3750 Vac
Overvoltage
measurement Class:
DC / 20 Hz .. 400 Hz
CAT III up to 300 Vac towards ground.
CAT II up to 300 Vac towards ground.
Loop Specifications
General Specifications: Passive, 4..20 mA
Maximum current: 35 mA in overload conditions.
Extern power supply
voltage:
From 5 to 28 Vdc.
Response time: For a stepped variation: < 100 ms from 10 to 90 %.
ENGLISH - 1/6MI00138 -E3
Accuracy specifications
(1)(2)
Range Measurement error
100 Vac / 90 Vdc 0,3 % o.m. + 70 µA
200 Vac / 180 Vdc 0,3 % o.m. + 40 µA
300 Vac / 270 Vdc 0,2 % o.m. + 30 µA
400 Vac / 360 Vdc 0,3 % o.m. + 30 µA
500 Vac / 450 Vdc 0,3 % o.m. + 30 µA
Thermal drift 150ppm / K
EMI Error < 40 µA
(1): Maximum error must be increased by 20 µA for input voltages lower than 10 Vac or for direct
voltages.
(2): The measurement errors are indicated for a sinusoidal signal.
(3): Acronyms “o.m.” stands for “of measurement”.
(3)
Other Specifications
Temperature: -20..65°C, humidy 30..90 % @ 40°C not-
Operating conditions:
International protection: IP20
Weight, dimensions: 140 g, 100 x 112 x 17.5 mm.
Standards: EN60688 (rated input voltage = 300 Vac)
condensing. Climatic Group III.
Storage Temperature : -20..85 °C.
Altitude: up to 2000 m a.s.l.
EN61000-6-4 (electromagnetic emission, industrial
environment).
EN61000-6-2 (electromagnetic immunity, industrial
environment).
EN61010-1 ( ).safety
MI00138 -E3 ENGLISH - 2/6
INSTALLATION RULES
The module is designed to be installed on a DIN 46277 guide, and wired only by front
terminals.
We suggest you to install the instrument vertically in order to arrange the ventilation of the
module and pay attention to do not fit any objects or canals that can obstruct its ventilation
louvers. Avoid fitting modules above equipment that generates heat; you are advised to fit
them at the bottom of the panel or on the enclosing compartment.
Overall Dimensions / DIP-switch Position
KEY
ON
SWITCH
17,5 mm
100 mm
MI00138 -E3 ENGLISH - 3/6
INPUT FULL SCALE SETTINGS
ATTENTION!
BEFORE YOU ATTEMPT USING THE DIP-SWITCH, MAKE SURE
THAT YOU HAVE DISCONNECTED ALL CIRCUITS AT
DANGEROUS VOLTAGE.
ATTENTION!
TO ADJUST THE TRIMMER ON PANEL AN INSULATED
SCREWDRIVER MUST BE USED.
The instrument satisfies standard 60688/1997; in particular, overvoltage tests of input
voltage are referred to give in Other Specifications. rated input voltage
Voltage overloads higher than maximum voltage given in Input Specifications may
damage the instrument.
The range of the instrument is established by the positions of the 4-way DIP-switch. The
first three ways select one of the 5 preset ranges, while the fourth way (usually off) enables
the insertion of the trimmer on panel, which gives a continuous-control extended range of
0..100 Vac (0..90 Vdc): if you rotate the trimmer clockwise you increase the output
(reducing the maximum range of the instrument), else you reduce the output increasing
the maximum range. If input voltage is present, , you must use an insulated screwdriver
because the insulation of the adjusting screw is not guaranteed.
Lower voltage input is 4 Vac o 5 Vdc for any range. These values are the amplitude
thresholds under which the instrument detects 0, that is transmits 4 mA.
The table below shows the combinations useful for the preset range values.
Range Range / TrimmerDIP
on
100Vac / 90 Vdc 100 Vac + 0..100 Vac / 90 Vdc + 0..90 Vdc
200Vac / 180 Vdc 200 Vac + 0..100 Vac / 180 Vdc + 0..90 Vdc
300Vac / 270 Vdc 300 Vac + 0..100 Vac / 270 Vdc + 0..90 Vdc
400Vac / 360 Vdc 400 Vac + 0..100 Vac / 360 Vdc + 0..90 Vdc
500Vac / 450 Vdc 500 Vac + 0..100 Vac / 450 Vdc + 0..90 Vdc
off
on
off
on
off
on
off
on
off
1234
1234
1234
1234
1234
(1): Maximum input voltage must not exceed 500 Vac o 710 Vpk anyway.
MI00138 -E3 ENGLISH - 4/6
(1)
on
off
on
off
on
off
on
off
on
off
DIP
1234
1234
1234
1234
1234
1234
ELECTRICAL CONNECTIONS
ATTENTION!
BEFORE MAKING ANY CONNECTION TO THE INSTRUMENT, MAKE SURE
THAT YOU HAVE DISCONNECTED ALL CIRCUITS AT DANGEROUS
VOLTAGE.
Loop connections
1
3
mA
Vext
ext. supply
max 28 V
Voltage input connections
10
V
12
RANGE: See “INPUT FULL SCALE SETTINGS”
FRONT PANEL
1 3
2
TRIMMER
ADJ
Z202-LP
10 12
MI00138 -E3 ENGLISH - 5/6
Disposal of Electrical & Electronic Equipment (Applicable throughout the
European Union and other European countries with separate collection
programs)
This symbol, found on your product or on its packaging, indicates that this product
should not be treated as household waste when you wish to dispose of it. Instead, it
should be handed over to an applicable collection point for the recycling of electrical
and electronic equipment. By ensuring this product is disposed of correctly, you will
help prevent potential negative consequences to the environment and human health,
which could otherwise be caused by inappropriate disposal of this product. The
recycling of materials will help to conserve natural resources. For more detailed
information about the recycling of this product, please contact your local city office,
waste disposal service or thè retail store where you purchased this product.
This document is property of SENECA srl. Duplication and reprodution are forbidden, if not authorized. Contents of the
present documentation refers to products and technologies described in it. All technical data contained in the document
may be modified without prior notice Content of this documentation is subject to periodical revision.
SENECA s.r.l.
Via Austria, 26 - 35127 - PADOVA - ITALY
THE INTERNATIONAL CERTIFICATION NETWORK
ISO9001-2000
R
Tel. +39.049.8705355 - 8705359 - Fax +39.049.8706287
e-mail: info@seneca.it - www.seneca.it
MI00138 -E3 ENGLISH - 6/6
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