Kentec Sigma ZXT | Extinguishing Control Panel | Single Area, Dual Outputs, 2.6A or 5.25A PSU
Summary
The Kentec K192311XM2 Sigma ZXT is a single area extinguishing control panel designed to provide reliable control and indication for gaseous fire suppression systems. Certified to EN12094-1, EN54-2 and EN54-4, this standard-sized panel features three conventional detection zones that provide the alarm stimulus required to activate extinguishant release, with any single zone or combination of zones configurable to trigger discharge.
Housed in a compact 368 x 324 x 100mm enclosure with a 2.6A PSU, the Sigma ZXT offers dual extinguishing outputs that can be configured as common or main/reserve outputs, allowing connection to two separate cylinder sets for rapid system restoration following a release. Six programmable volt-free relay outputs, an extinguishing release countdown timer, and compatibility with the full range of Sigma ZSi status indicators and ancillaries make this a highly flexible solution for a wide range of suppression applications.
The panel features a dynamic colour LCD that changes to reflect system status at a glance, full on-screen programming via password-protected menus, and a secure event log storing up to 1000 time- and date-stamped events. Configuration and event logs can be downloaded via USB using Kentec’s Loop Explorer 2 software, simplifying commissioning documentation and ongoing service records.
Features
- Single area extinguishing panel certified to EN12094-1, EN54-2 and EN54-4
- Three conventional detection zones with configurable release logic
- Dual extinguishing outputs configurable as common or main/reserve
- 2.6A PSU with 2 x 12V battery backup (Yuasa NP7-12 7Ah recommended)
- Secure event log storing 1000 time and date stamped events
- Dynamic colour LCD — green (normal), red (fire/released), red flashing (countdown), yellow (fault/disabled/test), turquoise (access level 2), blue (access level 3)
- Six programmable volt-free changeover relay outputs with 14 selectable functions
- Extinguishing release countdown timer adjustable 0–60 seconds in 5-second steps
- Extinguishing release duration adjustable 60–300 seconds
- Supports up to seven Sigma ZXT status indicators via two-wire RS485
- Backward compatible with existing Sigma SI status units and ancillaries
- 4 configurable user passcodes separating user and engineer access
- Compatible with I.S. barriers
- USB connectivity and Loop Explorer 2 software compatibility for configuration and event log download
- Standard panel size: 368(w) x 324(h) x 100(d)mm
FAQ
What certifications does the Sigma ZXT K192311XM2 hold?
The Sigma ZXT is approved and certified to EN12094-1 (components for gaseous fire extinguishing systems), EN54-2 (fire detection and fire alarm systems — control and indicating equipment), and EN54-4 (power supply equipment).
Can the panel support two separate sets of extinguishing cylinders?
Yes. The Sigma ZXT can be configured to provide two extinguishing outputs, which can either work together as common outputs or be set up as main and reserve outputs. The main/reserve configuration allows connection to two separate cylinder sets, enabling the system to be returned to a functional state quickly after a release.
How many detection zones does the K192311XM2 support?
The panel provides three conventional detection zones. Any single zone or a combination of multiple zones can be configured to contribute to the release of the extinguishant. Each zone supports a maximum of 32 detectors, dependent on current consumption.
What battery backup is compatible with the 2.6A version of the panel?
The 2.6A panel requires two 12V batteries connected in series. The recommended battery is the Yuasa NP7-12 (7Ah). Batteries must not be mixed. The battery charge voltage is 27.6V DC nominal (temperature compensated), with a charge current of 0.6A.
How is the panel programmed and can configuration records be saved?
The Sigma ZXT is fully programmable through the front fascia using clear, password-accessed on-screen menus. Configuration can also be downloaded to a computer via USB using Kentec’s Loop Explorer 2 software, which allows full commissioning documentation to be produced and service testing records to be maintained.
How many status indicators can be connected to the panel?
The Sigma ZXT supports up to seven Sigma ZXT status indicators connected via a two-wire RS485 (EIA-485) connection. It is also backward compatible with existing Sigma SI status units. Please note that a maximum of two status indicators can be powered directly from the panel’s AUX 24V DC output (21–28V DC at 300mA).
Specifications
- Product Code: K192311XM2
- Panel Type: Single area extinguishing control panel
- Certifications: EN12094-1, EN54-2, EN54-4
- Enclosure Size: 368(w) x 324(h) x 100(d)mm
- Construction: 1.2mm/1.5mm mild sheet steel
- IP Rating: IP30
- Finish: Epoxy powder coated
- Colour (Lid & Box): BS 00 A 05 fine texture
- Colour (Fascia): RAL 7016
- Weight: 6–7kg
- Operating Temperature Range: -10°C to +40°C
- Mains Supply: 230V AC +10%/-15% (100W maximum)
- Mains Supply Fuse: T2.0A 20mm, 250V AC HRC
- Power Supply Rating: 2.6A (total including battery charge, 28V +/- 1V)
- Maximum Ripple Current: <200mV peak to peak at rated voltage
- Battery Options: Two 12V batteries in series — Yuasa NP7-12 (7Ah)
- Battery Charge Voltage: 27.6V DC nominal (temperature compensated)
- Battery Charge Current: 0.6A
- Battery Fuse: 20mm F2.5A 250V
- Maximum Current Draw From Batteries: 2A
- Current Draw (Mains Fail): 0.11A
- Current Draw (Second Stage Alarm): 0.19A
- Current Draw (Post Discharge): 0.21A
- R0V Output: Fused at 500mA with electronic fuse
- Sounder Outputs: 21–28V DC, fused at 500mA with electronic fuse
- Relay Contact Rating (All Types): 5 to 30V DC, 1A maximum each
- Number Of Detection Circuits: 3
- Number Of Sounder Circuits: 2 x 1st stage, 1 x 2nd stage
- Number Of Extinguishant Outputs: 1 (or 2 with S2 sounder output reconfigured)
- Extinguishant Release Output: Fused at 1A continuous or 3A max (for 50ms)
- Extinguishant Release Delay: Adjustable 0 to 60 seconds (in 5-second steps)
- Extinguishant Release Duration: Adjustable 60 to 300 seconds
- Maximum Detectors Per Zone: 32 (dependent on current consumption)
- Zone Quiescent Current: 0mA minimum, 2mA maximum
- Detection Circuit End Of Line: 6K8 +/-5% ½W resistor
- Sounder Circuit End Of Line: 1N4004 diode
- Extinguishant Output End Of Line: 1N4004 diode
- Zone Detection Circuit Voltage: 21V DC nominal
- Zone Normal Threshold (Allowable EOL): 10K Ohm to 2K Ohm
- Detector Alarm Threshold: 1K Ohm to 390 Ohm
- Call Point Alarm Threshold: 370 Ohm to 150 Ohm
- Short Circuit Threshold: 130 Ohm to 0 Ohm
- Head Removal Condition: 15.5V to 17.5V
- Terminal Capacity: 0.5mm² to 2.5mm² solid or stranded wire
- Cabling: FP200 or equivalent (max. capacitance 1uF, max. inductance 1mH)
- Status Unit/Ancillary Connection: Two-wire RS485 (EIA-485 specification)
- Status Unit Power Output (AUX 24V): 21 to 28V DC at 300mA (maximum two status indicators)
- Programmable Relay Outputs: 6 volt-free changeover outputs, 14 selectable functions
- Event Log Capacity: 1000 events
- User Passcodes: 4 configurable
- Configuration Software: Loop Explorer 2 (LE2)
Downloads
- Datasheet (Adobe PDF)
- Quick Start Guide (Adobe PDF)
- Installation Manual (Adobe PDF)
- Operations Manual (Adobe PDF)
Additional information
| Weight | N/A |
|---|---|
| Device Type | |
| Networkable | |
| Manual Release | Yes |
| Mode Keyswitch | Yes |
| Mounting | Surface |
| Enclosure | |
| Enclosure-size | |
| Power Supply | 2.6A, 5.25A |
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