SIGA-WTM

The Edwards SIGA-WTM is an intelligent waterflow/tamper module from the Signature Series, designed to monitor sprinkler system waterflow switches and valve tamper switches simultaneously with dual dedicated input channels.
It features Channel 1 pre-configured for waterflow alarms (16-second retard/delayed latching) and Channel 2 for supervisory tamper monitoring, with automatic dual-address assignment and microprocessor-based signal processing for reliable Signature Loop integration.
Key Specifications
Feature
Specification
Display
Dual-color LED (Green: Normal / Red: Alarm)
Input Type
Dual Class B IDC (Waterflow + Tamper)
Channel 1
Waterflow Alarm (16s retard, latching)
Channel 2
Tamper Supervisory (non-latching)
Addressable
2 SLC addresses (auto-assigned)
Communication
Signature Data Circuit
Standard Functions
Self-diagnostics, Ground fault detection, Non-volatile memory
Mounting
2½" deep 1-gang or 4" square box
Aux Input
Dual IDC with 47kΩ EOL resistors
Power Supply
15.2–19.95 VDC (loop-powered)
Operating Temp
0°C–49°C (32°F–120°F, 0-93% RH)