CIRCUTOR DHB Series - Manual (Page 5)

5
1. APPLICATION AND METER DESIGN
The DHB-2xx meter is a programmable digital panel meter destined for
the measurement of d.c. voltage or d.c. current. Additionally, the meter
enables the indication of the current time. The readout field is a LED
display, which allows the exposition of results in colours: red, green
and orange. The measured input signal can be arbitrary converted by
means of a 21-point individual characteristic.
Features of the DHB-2xx meter:
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display colour individually programmed in three intervals,
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programmable thresholds of displayed overflows,
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2 NOC relay alarms operating in 6 modes,
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2 switched relay alarms with a switching contact operating
in 6 modes (DHB-224),
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signaling of the measuring range overflow,
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automatic setting of the decimal point,
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programming of alarm and analog outputs with the reaction
on the chosen input quantity (main or auxiliary input),
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real-time clock with the function of the clock supply support
in case of the meter supply decay,
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programmed averaging time – function of walking window with the
averaging time up to 1 hour,
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monitoring of set parameter values,
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interlocking of introduced parameters by means of a password,
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recount of the measured quantity on the base of a 21-point
individual characteristic,
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service of the interface with MODBUS protocol in the
RTU mode (DHB-224),
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conversion of the measured value into a standard – programmable
current or voltage signal (DHB-224),
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highlight of any measuring unit acc. to the order.