I-37 (Milliampermetr) 1970
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The milliampermeter "H-356" from the measuring kit "H-37" was produced since 1970 by the Krasnodar plant of measuring devices. '' H37 '' is a set of equipment for measuring and recording small DC signals. The kit consists of a self-recording milliammeter '' H356 '' and a measuring compensation DC amplifier '' I37 ''. The accuracy class of the device is 1.5. Limits of measurements by voltage: 0.05 ... 0.1. 0.25 ... 0.5. 1 ... 2.5. 5 ... 10. 25 ... 50 mV. The limits of measurement instrument current: 0.25 ... 0.5. 1.0 ... 2.5. 5.0 ... 10. 25 ... 50 μA. Record ink in rectangular coordinates on the chart with a working part width of 100 mm. The recording speed is 20, 60, 180, 600, 1800 and 5400 mm / h. The drive is a synchronous motor with an alternating voltage of 127 or 220 V, 50 Hz. Dimensions of the recording instrument '' Н356 '' - 165х180х270 mm, of the reinforcing unit - 170х244х305 mm. The total weight of the kit is 14 kg.
Information from collection of Valery Khartchenko