Eurotherm WV408 Data Sheet

WV408-2000

ULTRA SLIMPAK® II

WV408

DC Powered DC Voltage/Current Input

Isolating Signal Conditioner

High Accuracy Signal Conditioner with an

Isolated DC Voltage or Current Output

 Lower Power Requirements with SmartPower
 Improved Accuracy
 Bussed Power with Plug-in Power Clips
 Removable Terminals for Easy Service
 Approved for use in Class I Div 2 Group A, B, C, D areas

Description

The Ultra SlimPak II is an exciting new line of isolating signal
conditioners from Action Instruments with greater accuracy and
better stability than virtually any other signal conditioners on the
market today. The Ultra SlimPak II features Smart Power, which
eliminates wasted power for low loop resistance loads in the
current output mode.

The WV408 has both voltage and current input ranges. Four
voltage input ranges (±150mV, ±1.5V, ±15V and ±150V) are DIP
switch selectable. Each of these ranges has at least 95% zero and
span adjustment, which, for example, would allow you to set a 0­20mV user range on the ±150mV full scale range. Two current
input ranges (±2.5mA and ±25mA) are also DIP switch selectable.
"Sigma-Delta" conversion produces an effective resolution of 15
bits. Both voltage and current have input accuracies of 0.015% of
full scale. Outputs include 0-10V, 0-20mA and 4-20mA. The
WV408 also supports reverse output. The WV408 is recognized for
use in Class 1, Division 2, Groups A, B, C, D hazardous locations.

Smart Power

The Ultra SlimPak II uses Smart Power to control its output supply.
Smart Power automatically adjusts the the voltage to drive the
output loop to the required current. A low impedance current
loop will subsequently require less voltage than a loop with higher
impedance. Previous designs provided only a single supply at the
highest voltage required to drive the highest impedance load.
Using Smart Power results in power savings and reduces the
operating temperature of the signal conditioner.

Approved for use in Class I Div 2 Group A, B, C, D areas

Users can now enjoy significant labor savings over traditional
protection methods since there is no need for explosion proof
enclosures and conduits.

 RoHS Compliant
 Touch Cal for Best Stability and Accuracy
 DIP Switch Configuration
 Optional E-mail Notification of Alarms

A Division 2 area is one in which the flammable gases or vapors are
normally not present in an explosive concentration, but could
accidentally exist.

Group A is acetylene; Group B includes hydrogen; Group C includes
ether; and Group D includes hydrocarbons, fuels and solvents.

Enhanced LED Diagnostics

Other than when executing the pushbutton calibration routine,
the LEDs blink under the following conditions:

GREEN:

Flashes at 2Hz when the input is under range.
Flashes at 8Hz when the input is over range.

RED: Flashes at 2Hz when the output is under range.

Flashes at 8Hz when the output is over range.

An Under Range condition exists when the signal is lower than the
operational low value minus 6.25% of the operational span. An
Over Range condition exists when the signal is higher than the
operational high value plus 6.25% of the operational span.

A voltage output short circuit may cause an under range condition
(RED blinking at 2Hz rate). A current output open circuit may cause
an over range condition (RED blinking at an 8Hz rate).

There could be two or more LEDs blinking at the same time, which
means the module has more than one error condition. Only when
all error conditions have been removed, will the LEDs be back to
normal (Green ON, Red and Yellow Off).

A Class I hazardous location is one in which flammable gases or
vapors may be present in the air to be ignitable or explosive
(typical applications include petroleum refineries, spray finishing
areas, utility gas plants and fuel servicing areas).

Configuring Modules

Unless otherwise specified, the factory presets the Model WV408
as follows:

Input: Current

Range: 4-20mA

Output: Current

Range: 4-20mA

Reverse Out: Off

Remote Cal: Off

Calibration

See the calibration flowchart in Figure 3. The complete calibration
procedure is contained in the Installation & Calibration Instruc­tions document, which is available on our website
(www.actionio.com). You can also obtain it by telephoning Action
technical support (

Note that Custom Calibration (option C620) is available from the
factory (settings MUST be within the units specifications). For a
C620, specify the following:

1. For other ranges, refer to the SWITCH SETTINGS table.
Reconfigure switches S1 and S2 for the desired input type and range.

2. Set position 1 of S1 to ON if a WVC16 will be utilized and remote
calibration capability is desired.

3. Set position 2 and 3 of S1 for the desired output type.

4. Set position 4 of S1 to ON for reverse output operation.

5. Set positions 5-7 of S1 and positions 1and 2 of S2 for the desired
input range.

It is also possible to remotely select the setpoints using an Ethernet
connection and the optional WVC16 WebView Communications
Interface module.

a) Input Type, Range & Units (mA, mV, V).

b) Output Type, Range & Units (ma, mV, V).

c) Reverse Output (ON/OFF)

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ON = Closed

Remote Cal Enable

Remote Cal DisableOnOff

Output Range: 4 to 20ma

(see Table)

14

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2

45

3

Reverse Output

Direct OutputOnOff

1

Default Settings

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V01ot0

Am02ot0

Am02ot4

ON = Closed

7

6

Input Range: +/-25ma

(see Table)

23

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1

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2

Figure 1: Switch Settings

567812

 

Vm051-/+



V5.1-/+



V51-/+

V051-/+

 

Am5.2-/+

 

Am52-/+



Figure 2: Wiring Connections

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11 )+(rewoPCD

21 )-(rewoPCD

12 )+(rewoPCD

22 )-(rewoPCD

14 )+(tupnI

24 nommoCtupnI

15 )+(tuptuO

25 nommoCtuptuO

Figure 3: Calibration Flowchart

Specifications

r

Inputs:
Voltage:

±150mV, ±1.5V, ±15V or ±150VDC
Impedance: >100k Ohms
Over voltage:

Current:

±2.5mA or ±25mA
Impedance: <75 Ohms
Over current: 170mA, protected by resetting fuse
Over voltage: 60V

Zero & Span Adjustment: ±95% of Full Scale
Input Accuracy: ±0.015% of Full Scale
Outputs:

Voltage: 0 to 10VDC
Source Impedance: <10 Ohms
Drive: 10mA
Current: 0 to 20mA
Source Impedance: >100k Ohms
Compliance: 20V@20mA (1k Ohms max)

180Vrms

Output Accuracy: ±0.05% of Full Scale Local Range
Selection: By DIP switch
Response Time: 100mSec (10 to 90%)
Stability: ±100ppm of full scale/°C (±0.01%/°C)
Common Mode Rejection: 120dB @ DC,

>90dB @ 60Hz, or better

Isolation: 1800VDC or peak AC between input, output & power
ESD Susceptibility: Capable of IEC 801-2 level 3 (8kV)
Power: 9-30VDC; 1.0W typ., 2.0W max.
Host Module Interface: IR Link
Size: DIN rail case – refer to Dimensions drawing
Operating Temperature: 0 to +60°C (32 to 140°F)
Storage Temperature: -25 to +85°C (-13 to 185°F)
Operating Humidity: 15% to 95% RH,non-condensing @ 45°C
Storage Humidity: 90% RH, non-condensing @ 60°C for 24 hours
Agency Approvals (EMC & Safety):

UL recognized per standard UL508

(File No.E99775)

CE Conformance per EMC directive 2004/108/EC and Low Voltage

directive 2006/95/EC (Input < 75VDC, only).

RoHS Compliant

Ordering Information

Specify:

1. Model:

WV408-2000

2.

Optional Custom Factory Calibration (specify C620, see required
settings under "Calibration, page 2).

3. Accessories.

Accessories

All WV Series modules will mount on standard TS35 (model MD03)
DIN rail. In addition, the following accessories are available:

WVC16 Communications Interface

MD03 TS35 x 7.5 DIN Rail (2 meters)

WV905 24VDC Power Supply (0.5 Amp)

H910 24VDC Power Supply (1 Amp)
H915 24VDC Power Supply (2.3 Amp)

MB03 End Bracket for MD03

C650 Utility software for WVC16

Printed on recycled pape

Note that detailed installation instructions are available on our website.

Dimensions

Dimensions are in millimeters (inches)

Action Instruments

Chessell

721-0804-00-J 02/09 Copyright© Eurotherm, Inc 2009

Eurotherm