The Kentec Sigma ZSi K921010M8 is a 6-lamp extinguishant status unit with a manual release push-button. It extends the indications, and some controls, of Kentec Sigma ZXT extinguishant control panels to other points around the protected area, which is useful where a room has several doors or access points.
The unit is designed in accordance with EN 12094-1. Up to seven status units can be connected to each control panel extinguishant area, all on a two-wire RS485 data bus and powered from the 24 V DC auxiliary output of a compatible extinguishant control panel.
Key features
- LED indication of Manual Only, Auto/Manual, Hold Activated, Disabled, Imminent and Released
- Numeric countdown display showing the seconds until discharge
- Manual release push-button beneath an anti-tamper cover, with a plastic tamper seal supplied in the accessory pack
- Monitored remote Mode and Hold inputs
- Address set by DIP switch; internal COM, HOLD, MOD, CPU and FUSE status LEDs
- Flashes all LEDs (and sounds the buzzer, if fitted) to show a communications fault
Technical specifications
- Product code: K921010M8
- Power supply: 21 to 30 V DC
- Quiescent consumption: 33 mA; max. current consumption: 70 mA
- Data connection: two-wire RS485, max. 1200 m
- Max. status units: 7; max. ancillary boards: 8
- Monitored inputs: 6K8 (0.5 W) end-of-line resistor; normal 8K to 1K ohm, trigger 700 to 100 ohm, short circuit 99 to 0 ohm
- Cabling: fire-resistant cable such as FP200 with metal glands; max. 25 ohms per core; terminals up to 2.5 mm²
- Cable entry: 20 mm knock-outs
- Ingress protection: IP30
