Shanghai Zhengyang Instrument Factory ZY9961-3 dedicated DC resistor

NegotiableUpdate on 01/09

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

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Overview

Shanghai Zhengyang Instrument Factory ZY9961-3 dedicated DC resistor resistance: 10, 19.8, 20, 30, 50, 100, 150, 198, 200, 300, 400, 500 (m Ω), accuracy level 0.1%.

Product Details

Shanghai Zhengyang Instrument Factory ZY9961-3 dedicated DC resistor

Special DC resistorZY9961The type series dedicated DC resistor is a protocol product developed according to the special needs of users. Each instrument is composed of a precision switch and multiple precision resistance elements, which are led out from the terminal block in a four terminal manner, suitable for verifying digital and analog resistance instruments.

The instrument has open circuit and short circuit verification functions. The zero position and open circuit characteristics of the tested instrument can be inspected.

The instrument has the characteristics of high precision, good long-term stability, small size, and easy portability.

Main technical indicators

type

temperature range

accuracy class

ZY9961-3

10mOh,19.8 mOh,20 mOh,30 mΩ

0.2

50 mOh,100 mOh,150 mOh,198 mOh,

200 mOh,300 mOh,400 mOh,500 mΩ

0.1

Nominal power:0.2W

External dimensions:165×82×70（mm）L×W×H

Quality (weight):400～800g

Before using the instrument, the stepper disk should be rotated several times to ensure good contact between the switch contacts If the panel is equipped with "ZERo" and "0FF" switches, they should be reset, and the resistance value shown on the stepper panel is the resistance value led out from the four terminals of the terminal. Note that the wiring between C.l (current terminal) and p1 (potential terminal), P2 (potential terminal) and iCz (current terminal) must not be mistaken to prevent affecting measurement accuracy

The wire resistance of the measuring wire used for the low value resistor must not exceed 0.01 Ω; Only fully plated (silver) connectors can be used at both ends, and connectors made of metal materials such as nickel plated iron cannot be used. It is also important to note that the P1 and P2 terminals must be isothermal to prevent contact potential and melting potential from affecting measurement accuracy.

330FF (open circuit) ` zER0 (short circuit) switch usage method: Press the "ZER0" switch, R=0 Ω, that is, P1, P2

There is no voltage output at both potential terminals, used to calibrate the zero point of the instrument being picked up. After calibration, the "ZER0" switch should be reset; Press the '0FF' switch, R=∞ , The open circuit resistor is used to test the open circuit characteristics of the tested instrument, such as the open circuit status flag, the recovery time from open circuit to measurement, etc After inspection, the "0FF" switch should be reset Some specifications directly set "ZER0" and "0FF" on the stepper disk, and their functions and usage methods are similar to the above.