DZHM-5000A-(ib) DC millivolt converter is the improved product of DZH-5000A. it can transfer DC millivolt signal into 1～5V DC and 4～20mA DC signal. The instrument is four-wire connection. Its main amplifier circuit uses high-performance functional module circuit instead of the original discrete components, so that machine structure is compact, smaller in size, high reliability and good anti-jamming performance. The instrument applies to an explosion-proof automatic control systems, intrinsically safe explosion-proof mark is  (ib) Ⅱ CT6.