This document is the service information for the 61-340 and 61-342 multimeters. It includes information on precautions and safety information, specifications, basic maintenance (cleaning, replacing batteries and fuses), performance test procedures, calibration and calibration adjustment procedures.
This document serves as a technical service manual for the Ideal 61-340 and 61-342 digital multimeters. It is intended for qualified personnel and provides essential information on precautions, safety symbols, and general specifications including display count, power source, and maximum input limits.
| Display count | 3 3/4 digit liquid crystal display, max count 3999 |
|---|---|
| Numeric update rate | 2.5 times / sec |
| Power source | 9.0V battery: types- NEDA 1604, JIS006P , IEC6F22 |
| Maximum input voltage | 1000Vrms CAT III between V and COM |
| Maximum floating voltage | 1000Vrms CAT III between any terminal and earth ground |
| Overload protection mA connector | 500mA (500V) fast blow fuse |
| Overload protection 10A connector | 10A (500V) fast blow fuse |
| Frequency Accuracy (10.00Hz) | ± 0.1% + 3 digit |
| Auto Power Off time | ≈ 10minutes |
Only qualified personnel should perform the verification tests or calibration procedures described in the manual.
The maximum input voltage is 1000Vrms CAT III between V and COM.
The meter automatically turns the power off.
The meter requires a 9.0V battery of types NEDA 1604, JIS006P, or IEC6F22.