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T8449

ICS Triplex T8449 TMR Valve Position Monitor 24V

Diňe 7 sany galdy

  • Manufacturer: ICS Triplex

  • Product No.: T8449

  • Product Type: Position Monitor

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 1130g

  • Shipping port: Xiamen

  • Warranty: 12 months

30 günlük yzyna gaýtaryş syýasaty · 12 aýlyk kepillik
  • Çalt eltip berme
  • 24/7 goldaw
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Düşündiriş

Product Overview

The ICS Triplex T8449 is a TMR valve monitor module for safety-critical actuation. It provides a triplicated 24 Vdc output to drive the valve and monitors position via the next input channel—either 4–20 mA from a sensor or a resistor network from limit switches. Built for SIL 3 applications.

Core Advantages

TMR Architecture

Fully triplicated with 2-out-of-3 voting. No single failure compromises valve action.

Flexible Feedback Input

Accepts 4–20 mA loops or voltage-divider networks. The resistor network must produce monotonic voltage steps across full valve travel—otherwise the module cannot determine position.

Specifications

Parameter Value
Supply Voltage 20–32 Vdc (nom. 24 Vdc)
Power 27 W max
Analogue Input 4–20 mA
Switch Network Input 0–24 Vdc stepped
Temp. Range -40 °C to +70 °C
Certifications ATEX, IECEx, HazLoc
SIL SIL 3 (IEC 61508)

Installation Tips

Analogue Sensor

Set zero/span for 4 mA (closed) and 20 mA (open). Ensure loop power is 24 Vdc.

Resistor Network

Use precision resistors (≤1%). Voltage steps must be monotonic across entire stroke—otherwise the module will flag a position error.

Hazardous Area

Follow ATEX/IECEx rules: use certified glands, separate IS from non-IS circuits, and observe max surface temperature.

Why Choose T8449?

Withstands vibration, temperature swings, and corrosion. TMR eliminates common-cause failures. Seamlessly integrates with ICS Triplex Trusted systems and third-party TSI platforms. Reduces external components while improving diagnostic coverage.

FAQs

Q1: How to check valve position via voltage?
A1: Measure voltage at the input. It should step up or down monotonically as switches actuate. Reversing steps means wiring error—module will reject it.

Q2: Can it replace an old single-channel monitor?
A2: Yes, but rewire for TMR: connect both output (drive) and input (feedback). The old monitor usually lacks feedback input—add the resistor network or transmitter.

Q3: What does HazLoc mean?
A3: Approved for Class I, Div. 2 / Zone 2. Global compliance for explosive atmospheres. Check certificate for gas group and T-class (e.g., II 3 G Ex nA IIC T4).

🏷️ Tags: ICS Triplex Position Monitor

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