Gent Anti ligature base for the S Quad Sensor (Requires S4-700 base)
| Part no. | ALD-302 |
|---|---|
| Brand | Gent |
| Range | S4 Bases & Accessories |
| Sub-range | Anti-ligature |
Image for illustration; item supplied may differ
At a glance
- S-Quad ceiling mountingAnti-ligature mounting arrangement used with an S4-700 base.
- Magnetic continuity switchMaintains loop continuity when the assembly separates.
- Anti-tamper lipObstructs concealed items between the base and detector.
- Reinstatable assemblyThe separated detector assembly can be fitted back into place.
- 138 mm diameterThe anti-ligature base is 30 mm high.
- Resistance monitoringUse the Vigilon Loop Diagnostics Tool during and after commissioning.
Description
The Gent ALD-302 is an anti-ligature ceiling base for S-Quad sensors in secure facilities and buildings accommodating people at risk. It works with the S4-700 detector base. A built-in magnetic switch maintains loop continuity when the assembly separates, and an anti-tamper lip obstructs the space between the base and detector where items could be hidden. The detached assembly can be fitted back into place. The base measures 138 mm in diameter and 30 mm high and weighs 0.16 kg. During and after commissioning, monitor loop resistance using the Vigilon Loop Diagnostics Tool as part of the assessment of the fire alarm loop.
The ALD-302 provides an anti-ligature ceiling mounting arrangement for an S-Quad sensor and requires an S4-700 detector base.
Read the full technical description
The ALD-302 provides an anti-ligature ceiling mounting arrangement for an S-Quad sensor and requires an S4-700 detector base.
Its anti-tamper lip obstructs the space between the base and detector, and the separated assembly can be reinstated.
A magnetic reed switch preserves loop continuity when the assembly separates. The white leads link the reed switch to both positive loop connections. This continuity arrangement removes the need for a separate T Breaker for that function.
The base is 138 mm in diameter and 30 mm high and weighs 0.16 kg. Monitor loop resistance during and after commissioning with the Vigilon Loop Diagnostics Tool.
Specifications
| Product type | Anti-ligature base |
|---|---|
| Sensor range | S-Quad |
| Required detector base | S4-700 |
| Mounting | Ceiling |
| Dimensions | 138 mm diameter × 30 mm high |
| Weight | 0.16 kg |
| Loop continuity | Magnetic reed switch on assembly separation |
| Switch connection | White reed-switch leads between the positive loop connections |
| Anti-tamper feature | Lip between base and detector |
| Commissioning tool | Vigilon Loop Diagnostics Tool |
Specifications per manufacturer documentation, subject to change. E&OE.
FAQs
Does ALD-302 need an S4-700 base?
Yes. The ALD-302 anti-ligature assembly is used with the S4-700 detector base for an S-Quad sensor. The assembly mounts at the ceiling and includes an anti-tamper lip around the space between the base and detector. A magnetic switch maintains loop continuity when the assembly separates, and the detached assembly can be fitted back into place. The anti-ligature base measures 138 mm in diameter by 30 mm high and weighs 0.16 kg.
What happens to loop continuity when the assembly separates?
The magnetic reed switch maintains loop continuity as the assembly separates. Its white leads bridge the two positive loop connections, providing the continuity connection on removal. This arrangement removes the need for a separate T Breaker for that function. The detector assembly can be reinstated after separation. The ALD-302 is used with an S4-700 base, and loop resistance is monitored during and after commissioning with the Vigilon Loop Diagnostics Tool.
What is the anti-tamper lip for?
The lip obstructs the space between the anti-ligature base and the fitted detector to prevent items being hidden in that gap. It forms part of the ALD-302 ceiling assembly for S-Quad sensors in secure facilities and buildings accommodating people at risk. The detector uses an S4-700 base with this assembly. Alongside the lip, the magnetic continuity switch maintains the loop connection on separation, and the detached assembly can be fitted back into place.
What are the ALD-302 dimensions?
The ALD-302 anti-ligature base measures 138 mm in diameter and 30 mm in height, and its weight is 0.16 kg. It provides a ceiling mounting arrangement used with an S4-700 base for the S-Quad detector. The assembly includes the anti-tamper lip between base and detector and a magnetic switch for loop continuity on separation. The separated detector assembly can be reinstated, with loop resistance monitored during and after commissioning using the Vigilon Loop Diagnostics Tool.
What commissioning check applies to the anti-ligature base?
Monitor loop resistance during and after commissioning using the Vigilon Loop Diagnostics Tool. The ALD-302 includes a magnetic reed switch that maintains loop continuity when the assembly separates, with white leads linking the two positive loop connections. The continuity switch serves that removal function without a separate T Breaker. The anti-ligature assembly is used with an S4-700 detector base for the S-Quad sensor, and a separated assembly can be reinstated.