Pulse counter with m-bus MBHS-2/4/6/8

Pulse counter with m-bus MBHS-x

MBHS-2/4/6/8 are simplified microcontroller pulse counters with m-bus interface. Their purpose is to connect in m-bus network devices, which do not have m-bus (usually water- and heat- meters with pulse output). MBHS-2/4/6/8 have m-bus interface and up to 8 pulse inputs, but no display, keyboard and tariff possibilities are provided. Backup battery is an option. Mounted on a standard М36 DIN-rail.

user manual

Main technical parameters of MBHS-2/4/6/8

nominal net voltage 36 VDC
allowable net voltage 12 ÷ 42V DC
nominal power consumption 2mA (1 and 1/3 standard m-bus loads)
number of pulse inputs 2/4/6/8
display none
max input frequency 20Hz
pulse switch requirements Ron < 5k, Roff > 500k, up to 25m cable length
dimensions (H/W/D) 91/71/61 mm for MBHS-6/8; 91/53/61 mm for MBHS-2/4
work temperature from 0° C to +50° C

General information

МBHS-2/4/6/8 are simplified n-input pulse counters, intended to connect in m-bus network tax instruments or other devices, which do not have m-bus interface, but pulse outputs. These counters do not have display, keyboard or RTC (means there is no way to program different tariffs). Their purpose is to optimize prices for remote reading in civil buildings, still offering excellent quality. One MBHS-2/4/6/8 can connect maximum of 2/4/6/8 devices with pulse output to m-bus network. Standard device is powered through the network. Normally when power supply fail if no backup battery provided, MBHS counters write current pulses in flash memory. Then when power supply is restored continue to count pulses from that position. Backup battery is an option. This backup battery assures from 40 to 60 days normal mode of operation work time w/o external power supply. When network voltage is up again, the battery is recharged to full capacity.