Milwaukee 2205-20 Repair Service Instructions

Fork meter calibration

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Operator's manual (21 pages)

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Page 1 MILWAUKEE ELECTRIC TOOL CORPORATION – TEST & MEASUREMENT PRODUCT REPAIR SERVICE INSTRUCTIONS — CALIBRATION 2205-20 Fork Meter Perform all calibration at an ambient temperature of 23°C ± 2°C / 73.4°F ± 3.6°F and relative Environmental humidity of 80% - allow the fork meter to sit at this temperature for a minimum of 30 Condition minutes before proceeding.
Page 2: Table Of Contents
Page Introduction Symbols Safety Specifications c i f a t l c i f a t l & c i f & c i f y t i c i f i t s i t r c i f a i l Basic Maintenance Cleaning...
Page 3: Introduction
The information provided in this document is for the use of qualified personnel only. CAUTION The 2205-20 contain parts that can be damaged by static discharge. Follow the standard practices for handling static sensitive devices. Precautions and Safety Information Use the Meter only as described in the Operator’s Manual.
Page 4: Safety
SAFETY Review the following safety precautions to avoid injury and prevent damage to this product or products connected to it. To avoid potential hazards, use the product only as specified. WARNING: These statements identify conditions or practices that could result in personal injury or loss of life.
Page 5: Specifications
SPECIFICATIONS All specifications are warranted unless noted typical and apply to the 2205-20. Stated accuracies are at 23°C±5°C at than 80% relative humidity and without the battery indicator displayed. General specifications c i r y t i c i t Display "OL"...
Page 6 Measurement Characteristics Accuracy is ±(% reading + number of digits) at 23°C ± 5°C <80% R.H. Temperature coefficient: 0.2×(specified accuracy)/°C, <18°C >28°C (1) DC Voltage Range Resolution Accuracy 400.0V 0.1V ±(1% reading + 2 digits) 1000V Input Impedance: 1MΩ Response Time: < 1.5 sec. Overload Protection: AC/DC 1200V for 10 second.
Page 7: G E A ( U O T D C & A C D E E T T C O I ) N S P E I C C I F T A O I N
(3) Lo-Z Voltage (Auto DC & AC Detection) Range Resolution Accuracy 400.0V DC & AC 0.1V ±(2% reading + 3 digits) 1000V DC & AC Input Impedance: less than 6kΩ AC Frequency Response: 45 ~ 500Hz (Sine Wave) AC Conversion Type: RMS sensing, RMS indication Additional Accuracy by Crest Factor (C.F.): Same as ACV.
Page 8 (6) Continuity Range Resolution Accuracy 400.0Ω 0.1Ω ±(1% reading + 5 digits) Open Circuit Voltage: Approx. 0.4V Continuity: Built-in buzzer sounds when measured resistance is less than 30Ω and sounds off when measured resistance is more than 200Ω, Between 30Ω to 200Ω the buzzer maybe sound or off either.
Page 9 (14) Battery life (ALKALINE): Approx. 56 hours with backlight on. Approx. 542 hours with backlight off. (15) Overvoltage Category IEC 61010-1 1000V CAT. III (16) Operating Temperature < = -10°C ~ 30°C, 80%RH < = 30°C ~ 40°C, 75%RH < = 40°C ~ 50°C, 45%RH (17) Storage Temperature...
Page 10 Physical and Environmental Characteristics × × × × ° 0 ° 0 y t i < i t l ) . t ) . t Vibration & shock Operating MIL-PRF-28800F for Class 2 Instrument Indoor Use Certifications and compliances Safety Designed to IEC61010-1, UL61010-1 and CSA specifications Category IV 600V.
Page 11 Required Equipment Required equipment is listed in Table B. If the recommended models are not available, equipment with equivalent specifications may be used. Repairs or servicing should be performed only by qualified personnel. Table B. Required Equipment Equipment Required Characteristics Recommended Model AC Voltage Range: 0 ～...
Page 12: Basic Maintenance
Basic Maintenance WARNING To avoid shock, disconnect test leads from any voltage source than remove from meter before opening the case or replacing the battery. Opening the Battery Door / Meter Case CAUTION To avoid unintentional shock circuit, always place the uncovered Meter assembly on a protective surface.
Page 13: Performance Tests
Press “HOLD” key while turning the Meter on from the “OFF” position to hold the display in the Display Test Mode. Compare the display with the example in Figure 2. Turn off the meter to escape the test mode. LCD Graphics 2205-20 Figure 2 Display Test...
Page 14 Testing the Voltage Function To verify accuracy in the AC and DC voltage ranges, do the following: 1. Turn on the meter. 2. Connect the Calibrator to the VΩ and COM inputs on the Meter. 3. Set the Calibrator for the voltage and frequency from step 1 to 6 in Table 1. 4.
Page 15 Testing the Current Function To verify the accuracy of AC current measurement functions, do the following: 1. Using jaw of the meter around the suitable wire or conductor. 3. Apply the inputs for steps 1-2 in Table 3. 4. For each input, compare the readings on the Meter display to the reading in Table 3. 5.
Page 16: Calibration
Calibration Procedure Recalibrate the meter: It is recommended that the meter may be calibrated once year. Use the following procedure to calibrate the Fork tester. Environmental Condition < = Perform calibration at an ambient temperature and relative humidity (23°C±2°C and R.H. 80%).
Page 17: Calibation - Continued
(D) Resistance (400.0 Range) Calibration (VR52) Rotate the rotary switch to the resistance function. Connect the output of a resistance calibrator to V and COM input terminals of the meter. Output resistance 360.0 from the calibrator. Adjust the VR52 until the display shows 360.0 ±...

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