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WV118-2000 (non-latching)
WV118-2001 (latching)
ULTRA SLIMPAK® II
WV118
DC Powered RTD Input Limit Alarm
Provides Relay Contact Closures
at a Preset Temperature Level
Programmable HI or LO, Failsafe or Non-failsafe
Improved Accuracy
Adjustable Deadband
Bussed Power with Plug-in Power Clips
Removable Terminals for Easy Service
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 WV118 is an RTD Limit Alarm with dual setpoints and two
contact closure outputs. The input type and alarm functions are
field configurable, offering maximum flexibility. The WV118 supports Pt100, in both 0.00385 and 0.00392 alphas, and Cu10 RTDs.
All ranges allow the setpoints to be fully adjustable throughout the
entire range.
The WV118-2000 contains two standard non-latching SPDT relays.
When power is removed, the relays revert to their non-powered
state. The WV118-2001 contains two latching relays. Whatever
position the relays are in when power is removed is where they will
remain when power is re-applied (a reset switch is provided to
reset the relays after the alarm is no longer true). Both models are
configurable as a single or dual setpoint alarm, with HI or LO trips.
The WV118-2000 supports failsafe or non-failsafe operation. In
failsafe operation the relay coil is energized when the process is
below the HI setpoint or above the LO setpoint (opposite for nonfailsafe). In the failsafe mode, a power failure results in an alarm
state output.
Touch Cal for Best Stability and Accuracy
RoHS Compliant
LED Trip and Input Indicators
Optional E-mail Notification of Alarms
Supports 2-Wire and 3-Wire RTDs
Enhanced Diagnostics
Other than when executing the pushbutton calibration routine,
the LEDs blink under the following conditions:
RUN (Green):
On when unit is powered.
Flashes at 2Hz when input is under range.
Flashes at 8Hz when input is over range.
SETPOINT A (Red):
On when Setpoint A is tripped.
On when setting Setpoint A.
Flashes while calibrating the input level.
SETPOINT B (Red):
On when Setpoint B is tripped.
On when setting Setpoint B.
On while calibrating the input level.
Operation
Each of the alarm setpoints has a respective HI or LO deadband.
Red LEDs will illuminate indicating an alarm condition. The trip will
reset only when the process falls below the HI deadband or rises
above the LO deadband. (The WV118-2001 requires pressing the
reset switch in order to reset the relay after being tripped.) The
deadband can be left at the minimum level (the factory default)
or can be set to whatever level is desired.
Options
C620 Factory calibration of input range, setpoints, and output relays.
Figure 1: Limit alarm operation and effect of deadband.
An Under range condition exists when the signal is lower than the
operational low value by 5°C. An Over Range condition exists when
the signal is higher than the operational high value by 5°C.
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Configuring Modules
Unless otherwise specified, the factory presets the Model WV118
as follows:
Input: Pt100
Range: -200°C to 600°C
Output: Dual, SPDT
Trip: A: HI, B: LO
Failsafe: No
Deadband: A, B: minimum
Remote Cal: No
1. For other ranges, refer to the SWITCH SETTINGS table (see
Figure 4). Reconfigure switches S1 and S2 for the desired input
type and range.
2. Set position 1 of S2 to ON if a WVC16 will be utilized and remote
calibration capability is desired.
Calibration
See the calibration flowchart in Figure 6. 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:
a) RTD type and temperature range.
b) Setpoint A trip point and reset point.
c) Setpoint B trip point and reset point.
d) Failsafe (ON/OFF)
3. Set position 2 and 3 of S2 to ON for a Hi trip setpoint or to OFF
for a Low trip setpoint.
4. Set position 4 of S2 to ON for failsafe operation (e.g. alarm trips
upon power failure) or OFF for non-failsafe operation (-2000 only).
It is also possible to remotely select the setpoints using an Ethernet
connection and the optional WVC16 WebView Communications
Interface module.
Relay Protection and EMI Suppression
When switching inductive loads, maximum relay life and transient
EMI suppression is achieved using external protection (see Figures
2 & 3). Place all protection devices directly across the load and
minimize all lead lengths. For AC inductive loads, place a properlyrated MOV across the load in parallel with a series RC snubber. Use
a 0.01 to 0.1mF pulse film capacitor (foil polypropylene recommended) of sufficient voltage, and a 47ohm, 1/2W carbon resistor.
For DC inductive loads, place a diode across the load (PRV > DC
supply, 1N4006 recommended) with (+) to cathode and (-) to
anode (the RC snubber is an optional enhancement).
Note that if a deadband entry is not specified, the default setting
of 0.25% will be used.
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123 45 67
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C001-ot002---
C001ot05----
C062ot81---
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123 45 67
epyTDTR
001tP----
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Figure 4: Switch Settings
Figure 2: DC Inductive Loads
Figure 3: AC Inductive Loads
ON = Closed
1
RTD Config: 3-wire
(see Table)
3
2
45
Input: -200 to 600°C
(see Table)
6
RTD Alpha:
7
0.00385
Default Switch Settings
ON = Closed
1
3
2
Non-FailsafeOnOff
"B" Hi Trip
"B" Low TripOnOff
"A" Hi Trip
"A" Low TripOnOff
Remote Cal Enable
Remote Cal DisableOnOff
45
RTD Type:
Pt100
Failsafe
6
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Figure 5: Wiring Connections
niPnoitpircseD
11 ByaleR.O.N
21 ByaleR.moC
31 ByaleR.C.N
12 )+(rewoPCD
22 )-(rewoPCD
32 noitcennoCoN
14 )+(tupnIDTR
24 )-(tupnIDTR
34 nruteRDTR
15 AyaleR.O.N
25 AyaleR.moC
35 AyaleR.C.N
Figure 6: Calibration Flowchart
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Specifications
r
Inputs:
Sensor Types: Pt100 0.00385, Pt100 0.00392, Cu10
Sensor Connection: 2-wire or 3-wire
Ranges:
Pt100 RTDs:
°C °
-200 to 600 -32 to 1112 0.00385 1
-200 to 260 -328 to 500 0.00385 2
-200 to -100 -328 to -148 0.00385 3
-50 to 100 -58 to 212 0.00385 4
-18 to 300 0 to 572 0.00385 5
-200 to 600 -328 to 1112 0.00392 6
-200 to 260 -328 to 500 0.00392 7
-200 to -100 -328 to -148 0.00392 8
-50 to 100 -58 to 122 0.00392 9
-18 to 300 0 to 572 0.00392 10
Cu10 RTDs:
°C °F range no.
-200 to 260 -328 to 500 11
-200 to 100 -328 to 212 12
-200 to -100 -328 to -148 13
-50 to 100 -58 to 212 14
-18 to 260 0 to 500 15
RTD Excitation:
Pt100: 0.45mA, max.; Cu10: 5.0mA, max.
Lead Wire Resistance:
40% of the base sensor resistance maximum or 100 ohms
(whichever is less)
Lead Wire Effect:
Changing from 0 ohm lead resistance (each lead) to maximum
allowed lead resistance: Error <1% of largest span PT and Cu ranges;
-200 to 600°C for Pt and –200 to 260°C for Cu.
Pushbutton Adjustment: Effective zero offset: >95%
(Inputs >10mV): Effective span turn down: >95%
Local Range Selection: By DIP switch
F alpha range no.
Response Time:
Dynamic Deadband: Relay status will change when proper setpoint/
process condition exists for 100mSec.
Normal Mode: <250mSec (analog filtering)
Setpoint Effectivity:
Setpoints are adjustable (by pushbutton) over 100% of the selected
input span
Repeatability: ±0.05% of FS, ±1°C (constant temp)
Relay Contacts: 2 SPDT (2 form C) Relays, 1 relay per setpoint
Current rating (general use): 120VAC: 5A; 240VAC: 2A; 28VDC: 5A
Material: Gold flash over silver alloy
Electrical Life: 105 operations at rated load
Reset Switch:
For unlatching the relay once the process is no longer in the alarm
state (WV118-2001 only).
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 and power.
ESD Susceptibility: Capable of meeting IEC 801-2 level 3 (8kV)
Humidity (non-condensing):
Operating: 15 to 95% RH (@45°C)
Soak: 90% RH for 24hrs (@60°C)
Temperature:
Operating: 0 to 60°C
Storage: -25 to +85°C
Power: 9 to 30VDC, 1.0W typical, 2.0W max
Host Module Interface: IR link, same specs as Phase 1 modules
Size: DIN rail case – refer to Dimensions drawing
Environmental:
Operating Temperature: 0°C to +60°C (32 to 140°F)
Storage Temperature: -25°C to +85°C (-13 to 185°F)
Operating Humidity (non-condensing): 15% to 95%RH at 45°C
Storage Humidity: 90%RH at 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:
WV118-2000 (non-latching) or
WV118-2001 (latching)
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
721-0866-00-E 02/09 Copyright© Eurotherm, Inc 2009
Eurotherm
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