Bridge DC R353 (R 353, R-353, r353; r 353; r-353)
Measuring bridge R353 - single bridge DC, designed to measure the resistance of wires, electric detonators and electroexplosion networks.
Measuring range: 0.2 - 50Om, 20 - 5000Om.
The current source - the element MC-4K, 1.2V
Bridge R353 mounted in a waterproof metal case with a lid. Unit dimensions R353 - 160 × 140 × 85mm. Bridge weight does not exceed 1.3kg.
Specifications bridge R353
The electrical circuit of the device R353 is made on the basis of single-bridge DC. Bridges R353 have an error of measurement, which is 5% of the measured resistance.
Resistance level senior decade shoulder comparison 1000Om bridge, the resistance ratio of at least shoulder the 1st. Initial resistance store reference leg R353, then there is resistance when you install all the decades of the switches on zero evidence, shall not exceed 0.02 ohm
The variation of initial resistance store reference leg bridges caused by the change of the contact resistances and contact switching devices does not exceed 0,003 ohms.
Insulation between insulated from the housing electrical circuits and package the device can withstand for 1 minute test voltage of 500 V, 50 Hz. Stalks can survive without any defects 50,000 moves.
Bridges type R353 are designed for use at temperatures from -40 ° C to +35 ° C, relative humidity 98% at 35 ° C.
Photos: R353 (P353)