Gas pilot burners ZMI16 for igniting and monitoring

Description

ZMI with a single electrode for igniting and monitoring
ZMIC with ceramic tip

Application

For safely igniting gas burners on furnaces in the metal, ceramics and non-ferrous metal industries and on heat treatment installations.

The ZMI can also be used as an independently operated burner. Suitable for operation with natural gas, town gas/coke oven gas or LPG.

The pilot burner is ignited electronically and monitored by a single ignition and ionization electrode. The ZMIC 28 with ceramic tip has a longer, sharper flame. The ceramic tube has a longer service life and is suitable for higher temperatures.

kromschroeder ZMI16 ZMI25 pilot burner

In the case of combined pilot and main burners, EN 746-2:2010 stipulates the monitoring of pilot and main burner via the automatic burner control unit. Exceptions are permitted provided that the safety of the installation is not impaired.

As soon as voltage is supplied to the ignition transformer, the pilot burner ZMI is ignited using an ignition spark. If the pilot burner detects a stable ionization signal, the enable signal for operation of the main burner is issued via the automatic burner control unit. The main burner is ignited. If the main burner provides a stable flame signal, the pilot burner ZMI can be switched off.

ZMI with a single electrode for igniting and monitoring ZMIC with ceramic tip

Technical data

• Capacity: ZMI 16: 1 to 2 kW (3.8 to 7.6 103 BTU/h), ZMI 25: 2.5 to 4 kW (9.5 to 15.1 103 BTU/h) (1.5 to 3.3 kW when used with town gas, coke oven gas), ZMIC 28: 2.5 to 4.2 kW (9.5 to 15.9 103 BTU/h).
• Capacities in kW refer to the lower calorific value Hu and capacities in BTU/h refer to the upper calorific value Ho
• Gas inlet pressure: ZMI: up to 80 mbar (up to 32 “WC), ZMIC: up to 100 mbar (up to 40 “WC),
• Air inlet pressure: up to 120 mbar (up to 47 “WC), each depending on the gas type.