MTS Multi-Variable Trip Switch
Overview
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What is the MTS ?
A ZERO-ERROR DIGITAL or a 4-20ma
Analog PV trip in one compact module.
Multivariable Trip Switch
MTS
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Trip Switch Usage
PV Alarm Trip
Status Output
Power
Digital or Analog
Transmitter Input
Analog Output
Trip Point
98.2
STAT
RLY
DE
HI
LO
• Simple On/Off Control
• Safety Shutdown
• Pressure Switch Replacement
Recorder
Motor
Smart Pressure
Transmitter
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MTS Block Diagram
PV Alarm Trip
Status Output
Power
Digital or Analog Transmitter Input
Analog Output
Trip Point
98.2
or
STAT
RLY
DE
HI
LO
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Product Positioning
Price
Functionality
Triconex
PLC
Acromag
MTS
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MTS Features
• Trip on DE or ANALOG signal
• LOW or HIGH trip on PV or SV
• 5A @ 250VAC trip/status relays
• 5 LED activity indicators
• Independent transmitter status relay
• Analog repeat output
• Modular DIN rail mount
• Test mode
• CE Mark & CSA
• Configurable “forced I/O manual” mode action
MTS
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MTS Benefits
• ZERO ERROR digital PV trip.
• One model with DE or ANALOG input capability.
• Bumpless & secure digital communication.
• Access to all variables saves on wiring and transmitter costs.
• Positive digital trip action avoids process upsets.
• Isolating transmitter status from PV trip helps avoid false process shutdowns.
• Expands functionality while maintaining full digital integration.
• Increases analog accuracy 80% !
• Allows elimination of Hi/Hi and Lo/Lo alarms.
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Application Examples
• Integrated Safety Solution- Mix of DE and analog
- Bumpless Communications
• Stand Alone Safety Solution• On/Off Control• Pressure Switch Replacement• Single Variable Transmitters
- Access second variable
• Multidrop & Multivariable Transmitters- Wiring savings
- Multiple trips
• Accuracy Enhancement
MTS
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Integrated Safety System
• Maintain Full Digital Integration
• Bumpless & Secure Communication
• Test & Validate Using Handheld Communicators
• Incorporate Xmtr Status into Strategy
Bumpless DE CommunicationsDigitalControl System
MTSDE
Status
AnalogOn/Off Trip
Handheld Communicator
Motor
Recorder
Multi-Variable Pressure
Transmitter
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Stand Alone Shutdown Solution
• Full Digital Bi-Directional Communications
• Increase Analog Accuracy 80%
2-wire All Digital Communications
MTS
+24VDC
Status
Trip
Analog
Handheld Communicator
Motor
Multi-Variable Pressure
Transmitter
Recorder
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Simple ON/OFF Control
Smart Pressure Transmitter
Temperature
• Access Temperature (Secondary Variable) to control steam flow.
MTS
DP
Trip
2-wire Digital Communications
Steam Tracing Application . . .
steam
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Pressure Switch Replacement
Smart Pressure
Transmitter
• Remote diagnostics
• < 1year return on investment
+ =MTS
Reduced Maintenance
Costs
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Single Variable Transmitter
ST 3000 Smart Pressure
Transmitter
Temperature
• Access Secondary Variable (Temperature)
• Access Digital Transmitter Status
MTS
DP
Trip
2-wire Digital Communications
Status
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Multi-drop with Multivariable Transmitter
SMV 3000 Multi-variable
Pressure Transmitter
• Access DP, AP, Temperature and Flow
• Access Digital Transmitter Status
• Reduce Wiring Costs
2-wire Digital Communications
MTS
Trip Trip Trip
Sta
tus
APDP TEMP FLOW
Motor
Motor
Control System
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Analog 4-20mA
ST 3000 Smart Pressure
Transmitter
Control System
Typical analog installation . . .
±0.1%
RL ±0.1%
Overall Accuracy = ± 0.2 %
Analog 1-5 volts
Accuracy Enhancement
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80% improvement with MTS . . .
±0.075%
Overall Accuracy = ± 0.12 %
MTS
Digital PV and Status
±0.045%
Analog1-5 volts
Control System
Status
Accuracy Enhancement
ST 3000 Smart Pressure
Transmitter
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MTS Installation
• Mix, Match and Multidrop
• Installs Without Disconnecting Existing Installation
• Maximize DE Input & Minimize Analog Output Wire Runs
• Installs Either as Stand Alone or Listener
2-wire All Digital Communications
MVA Control System
MTS
Analog
Status
Trip
Analog
ST 3000 Smart Pressure
Transmitter
Recorder
Motor
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PV Configuration
Release Tabs
Configuration Switches
• No Special Tools
• Secure
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Trip Point Configuration & Indicators
• Compact
• Informative
• No Special Tools
• Secure
PV Trip Point Switches
"STATUS" LED• PV Alarm
• Transmitter & MVA Status
• BAD PV
• Database Mismatch
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Trip Error
Resolution
Hysteresis
Response Time
Analog Repeat Out
Multivariable
Indep Xmtr Status
Secondary Variable
Bi-Directional Comm
Listener
Stand Alone
DIGITAL
0
16 bits
0.25%
25 msec.
YES
YES
YES
YES
YES
YES
YES
ANALOG
±1.0%
8 bits
2%
60 msec.
NO
NO
YES *
NO
NO
NO
YES
DIGITAL versus ANALOG Input
* status relay is activated when analog signal outside 4-20ma. range
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MTS Benefits Summary
• ZERO ERROR digital trip
• One model for DE or ANALOG
• Secure digital communication
• Access to all variables
• Positive digital trip action avoids process upsets.
• Transmitter status avoid false process shutdowns.
• Expands functionality & maintain full digital integration.
• Increases analog accuracy 80% !
• Allows elimination of Hi/Hi and Lo/Lo alarms.
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