Edwards SIGI-WTMI Waterflow/Tamper Module

The Edwards SIGI-WTMI is a Signature Series two-circuit waterflow/tamper module with an integrated isolator, for the Edwards EST4 life safety control platform (EN54) and other Edwards Signature analogue addressable systems. It monitors waterflow alarm switches and supervisory or tamper switches.

Circuit 1 is for Class B normally open waterflow alarm switches: when the contact is closed for about 16 seconds, an alarm signal is sent to the loop controller. Circuit 2 is for Class B normally open dry contact supervisory and tamper switches: when the contact closes, an active signal is sent. Conditions on both circuits are latched at the module.

Key features

• Two input circuits: waterflow alarm and supervisory/tamper
• Waterflow alarm after the contact is closed for about 16 seconds
• Conditions latched at the module
• Integrated line fault isolator
• Signature Series intelligent device with on-board microprocessor (distributed intelligence)
• Self-diagnostics and history log stored in non-volatile memory
• Automatic device mapping by the Signature loop controller
• Fast, stable digital communication - shielded or twisted wiring is not required

Technical specifications

• Model: SIGI-WTMI
• Type: waterflow/tamper module with integrated isolator
• Circuits: 2 × Class B normally open dry contact
• Waterflow delay: approximately 16 seconds
• Mounting: one-gang
• Data sheet reference: E85001-0705
• Signature loop controller: 3-SSDC2-E (single) or 3-SDDC2-E (dual) on the EST4 panel