Product Details
The Honeywell TC809B1008, also cataloged as the TC809B1008 Mini Monitor Module, operates as a dedicated hardware component for monitoring normally open contact field devices within intelligent two-wire signaling line circuit networks. It provides direct physical execution by supervising initiating device circuits (IDC) and reporting contact status changes to the main loop controller.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | TC809B1008 |
| Brand | Honeywell |
| Origin | Industrial Standard Assembly |
| Weight | 0.2 kg |
| Dimensions | Compact Mini Module (Fits single-gang junction box) |
| Operating Temp | 0 to 49 deg C |
| Power Consumption | Powered via SLC Loop (15-32 VDC Operating Voltage) |
| Input Circuit | 2-Wire Initiating Device Circuit (IDC) |
| Device Compatibility | Normally Open Contact Devices |
| Address Setting | Built-in Rotary Decade Switches |
| End-of-Line Resistor | 47k ohms |
| Max IDC Wiring Resistance | 40 ohms |
| Operating Humidity | 10% to 93% RH, non-condensing |
4-20 mA HART Loop Protocol & Channel-to-Channel Isolation
The TC809B1008 interfaces with intelligent control loops operating across two-wire communications channels. Integral filtering and channel-to-channel isolation techniques shield the internal supervision circuitry from electromagnetic interference (EMI) and transient ground currents generated across extended signal wire runs. The supervised loop utilizes a 47k ohm end-of-line (EOL) resistor network to distinguish between active alarm states, normal standby modes, and open-circuit wiring faults, transmitting discrete status telemetry back to the central process node without signal degradation.
Frequently Asked Questions
Q: How is the loop address set on the TC809B1008 module?
A: The module incorporates built-in rotary decade switches on the housing that allow direct manual setting of the unique SLC loop address.
Q: What is the maximum allowable wiring resistance for the monitored input circuit?
A: The initiating device circuit (IDC) supports a maximum line resistance of 40 ohms, using a 47k ohm end-of-line resistor for circuit supervision.
Q: What power source is required to operate the TC809B1008?
A: The module derives its required operating voltage (15-32 VDC) directly from the two-wire signaling line circuit loop, requiring no local external power supply.
Field Installation Guidelines
- Set the assigned address on the module using the rotary decade switches prior to physical mounting.
- Connect the 2-wire signaling line circuit (SLC) cables to the designated input terminals, observing correct polarity.
- Wire the normally open contact field device to the initiating device circuit (IDC) leads and install the specified 47k ohm EOL resistor across the furthest terminal points.
- Fit the compact module body directly inside the single-gang electrical junction box behind the monitored field device and secure all conduit connections to prevent wire chaffing.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
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- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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