EH11 Universal optical scanning head

The scanning head EH 11 is intended for remote supervision of the operation of both induction and static type electricity meters. The generated pulses correspond to the revolution number of the rotor disc for induction type electricity meters, and to the number of pulses generated by the optical pulse output of static type electricity meters. A push button switches over the operation for the different electricity meter types, and a multiturn potentiometer regulates the sensitivity.

Techical description

Power supply 12-20 V DC

Consumption in “Disc” mode 80mA max

Consumption in “Static” mode 30 mA max

Dimensions 100 mm x 67 mm x 20 mm

Weight max 250 g

Radiation green 12000 mcd/20 mA

Modulation frequency 8 kHz

Frequency band of the receiver 340 ÷ 950 nm

Maximum sensitivity at 800 nm

“Open Collector” Output NPN 30 V DC max/50 mA

Current output for a photo-coupled pair 10 mA max

Output impulse in “Disc” mode 200 ms min

Output impulse in “Static” mode 0,6 ms