IDEAL INDUSTRIES INC. TECHNICAL MANUAL MODEL: 61-795 The Service Information provides the following: • Precautions and safety information • Specifications • Performance test procedure • Calibration and calibration adjustment procedure • Basic maintenance (replacing the battery and fuses) Form number: TM61795 Revision: 4.
TABLE OF CONTENTS Page Title Introduction 1 Precautions and Safety Information Safety Information 1 1 Required Equipment 2 Performance Verification 3 Table 1 Performance Verification Model 61-795 Calibration 3 4/5 Table 2 Calibration Range Inputs Model 61-795 5 Replacing the Battery Replacing Fuses 5 5 Circuit Board Drawing 6 Battery and Fuse Replacement Drawing 7 Revision 4: Remove on page 3 Low ohms source check. This check is not needed to verify the performance of the instrument.
Page 1 Introduction Warning To avoid shock or injury, do not perform the verification tests or calibration procedures described in this manual unless you are qualified to do so. The information provided in this document is for the use of qualified personnel only. Caution The 61-795 contains parts that can be damaged by static discharge. Follow the standard practices for handling static sensitive devices.
Page 2 Required Equipment Required equipment is listed in Table B. If the recommended models are not available, equipment with equivalent specifications may be used. Only qualified personnel should perform repairs or servicing. Table B. Required Equipment Equipment Required Characteristics Calibrator AC Voltage Range: 0-750V ac Accuracy: ±0.04% (Basic) Frequency Range: 10 ~ 500KHz Recommended Model Fluke 5500A Calibrator or equivalent Accuracy: ± 2% DC Voltage Range: 0-1000V dc Accuracy: ±0.
Page 3 PERFORMANCE VERIFICATIONS Perform the following analysis, if the meter conforms to the limits listed in Table 1 the meter is functioning correctly. If the meter does not conform to any of the listed limits, the calibration procedure must be performed. Check the fuse as a BBS, 1A/600V, 10.4*35 (0.41x1.38 inch) UL/CSA, interrupting rating 10kA. Check case, leads, display, etc, for any defects.
Page 4 CALIBRATION Calibration Preparation Required Equipment The class of calibrator or equipment should have an accuracy that exceeds, by an expectable ratio, the accuracy of the instrument under test. Required fixed resistors: 0 , 5 , 19 , 190 , 0.0M , 1M , 10M , 100M , 1000M Simulated Test leads. With a total resistance of < .1 ±10m or .05Ω per simulated lead. Calibration Procedure It is recommended that all IDEAL meters undergo the following calibration procedure on an annual basis. Calibration 1. 2.
Page 5 Table 2 Calibration Range Inputs: Model 61-795 Range 1 2 3 Function DCV ACV Input the calibrator standard value DC600.0V AC600.0V 190.0Ω 4 0.00Ω 5 LOΩ 19.00Ω 6 LOΩ 0.00Ω 7 LOΩ 5.00Ω 8 LOΩ 0.00Ω 9 250V/MΩ 1000MΩ 10 250V/MΩ 100.0MΩ 11 250V/MΩ 10.00MΩ 12 250V/MΩ 1.000MΩ 13 250V/MΩ 0.000MΩ 14 500V/MΩ 1000MΩ 15 500V/MΩ 100.0MΩ 16 500V/MΩ 10.00MΩ 16 500V/MΩ 1.000MΩ 18 500V/MΩ 0.000MΩ 19 1000V/MΩ 1000MΩ 20 1000V/MΩ 100.0MΩ 21 1000V/MΩ 10.
Page 6 3. Remove the hood and battery compartment cover by using a screwdriver. 4. Loosen the screws from the case bottom. Remove the case bottom. 5. Remove input cover using a screwdriver. 6. Check the fuse with a digital multimeter with a source current < 10mA in low resistance range. (Replace fuse with a BBS 1A/600V, 10.3*38 (1.5x0.41 inch) UL/CSA, interrupting rating 10kA.) 7. Install input cover and secure with screw. 8. Replace the case bottom and secure with screw. 9.
Page 7 Figure 1 Form number TM61795 Rev 4 July 2011
Page 8 Figure 2 Form number TM61795 Rev 4 July 2011
