User s Manual 700938 Power Supply 5th Edition
Thank you for purchasing the 700938 Power Supply. This user s manual contains useful information about the instrument s functions and operating procedures as well as precautions that should be observed during use. To ensure proper use of the instrument, please read this manual thoroughly before operating it. Keep the manual in a safe place for quick reference whenever a question arises. List of Manuals The following manuals are provided for the 700938 Power Supply. Manual Title Manual No. Notes 700938 Power Supply This manual. User s Manual Model 700938 Power Supply IM 700938-92 Document for China User s Manual Model 700938 Power Supply User s Manual IM 700938-93Z2 Document for Korea The E and Z2 in the manual numbers are the language codes. Contact information of Yokogawa offices worldwide is provided on the following sheet. Document No. Description PIM113-01Z2 List of worldwide contacts Revisions 1st Edition: May 1999 2nd Edition: January 2001 3rd Edition: November 2005 4th Edition: November 2015 5th Edition: October 2017 5th Edition: October 2017 (YMI) All Rights Reserved, Copyright 1999 Yokogawa Electric Corporation All Rights Reserved, Copyright 2015 Yokogawa Test & Measurement Corporation 1
Checking the Contents of the Package If the worng instrument or accessories have been delivered, if some accessories are missing or if they appear abnormal, contact the dealer form which you purchased them. 700938 Power Supply (main unit) Accessorries Manuals 1 set Power cord 1 Spare fuse (in the fuse holder) 1 100 V, 120 V: F1.0 AL/250 V, 20 mm 5 mm dia. 220 V, 240 V: F0.5 AL/250 V, 20 mm 5 mm dia. Safety Precautions This instrument is an IEC safety class I instrument (provided with terminal for protective grounding). The following general safety precautions must be observed during all phases of operation, service and repair of this instrument. If this instrument is used in a manner not specified in this manual, the protection provided by this instrument may be impaired. YOKOGAWA assumes no liability for the customer s failure to comply with these requirements. The following symbols are used on this instrument. To avoid injury, death of personnel or damage to the instrument, the operator must refer to an explanation in the User s Manual or Service Manual. Functional grounding terminal (This terminal should not be used as a Protective grounding terminal.) Alternating current ON (power) OFF (power) 2 IM700938-01E
Safety Precautions Precautions In order to ensure safe operation and to obtain maximum performance from the unit, observe the cautions listed below. WARNING This unit is designed to be grounded through the three-wire power cord provided. In order to prevent electric shock, etc., connect this power cord to a grounded three-prong power receptacle. CAUTION Do not subject the unit to vibrations or shocks during transport or handling. Be especially careful to avoid dropping the unit. Do not store the unit where it will be exposed to direct sunlight, high temperature, high humidity, or condensation. If exposed to such conditions, the unit may be damaged, the insulation may deteriorate, and the unit may no longer satisfy its specifications. Before using the unit, inspect it and check the operation to make sure that the unit was not damaged due to poor storage or transport conditions. If damage is found, contact your dealer or YOKOGAWA representative. When unplugging the power cord from the power receptacle or from the unit, grasp the plug, not the cord, in order to avoid damaging cable. This unit is not constructed to be waterproof or dustproof, so do not use it in a very dusty environment or in one where it will get wet. Gently wipe dirt from the surface of the unit with a soft cloth moistened with a small amount of water or mild detergent. Do not try to clean the unit using cleaners containing organic solvents such as benzine, alcohol, acetone, ether, ketones, thinners, or gasoline. They may cause discoloration or damage. 3
Sales in Each Country or Region Waste Electrical and Electronic Equipment Waste Electrical and Electronic Equipment (WEEE), Directive (This directive is valid only in the EU.) This product complies with the WEEE directive marking requirement. This marking indicates that you must not discard this electrical/electronic product in domestic household waste. Product Category With reference to the equipment types in the WEEE directive, this product is classified as a Monitoring and control instruments product. When disposing products in the EU, contact your local Yokogawa Europe B.V. office. Do not dispose in domestic household waste. Authorized Representative in the EEA Yokogawa Europe B.V. is the authorized representative of Yokogawa Test & Measurement Corporation for this product in the EEA. To contact Yokogawa Europe B.V., see the separate list of worldwide contacts, PIM 113-01Z2. 4 IM700938-01E
The following symbol marks are used to attract the operator s attention. Improper handling or use can lead to injury to the user or damage to the instrument. This symbol appears on the instrument to indicate that the user must refer to the user s manual for special instructions. The same symbol appears in the corresponding place in the user s manual to identify those instructions. In the manual, the symbol is used in conjunction with the word WARNING or CAUTION. WARNING Calls attention to actions or conditions that could cause serious or fatal injury to the user, and precautions that can be taken to prevent such occurrences. CAUTION Note Calls attention to actions or conditions that could cause light injury to the user or damage to the instrument or user s data, and precautions that can be taken to prevent such occurrences. Calls attention to information that is important for proper operation of the instrument. 5
Contents List of Manuals...1 Checking the Contents of the Package...2 Safety Precautions...2 Sales in Each Country or Region...4 Product Overview...7 Names of Parts...7 Measurement Procedure...7 Preparations...7 Measurement Procedure...7 Description of Parts...9 Power Supply Receptacle...9 Fuse Replacement...9 When Switching the Current Voltage...10 When Replacing the Power Fuse...10 Specifications... 11 Product Specifications... 11 Standards Applying... 11 Corrective Action to be Taken in the case of an Abnormality... 11 6 IM700938-01E
Product Overview This instrument is a power supply for probes. Two power supply receptacles are provided on the front panel, and this allows two probes to be used simultaneously. Names of Parts Power indicator Power supply connector Fuse holder POWER SUPPLY POWER Voltage viewing window ON PROBE 1 2 OFF Power switch Power supply receptacles MODEL NO. Made in Japan Front view Measurement Procedure Preparations Grounding terminal Rear view CAUTION Before turning on the power, make sure that the voltage of the power supply being used matches the supply voltage indicated on the rear panel of the unit. 1 Turn the power switch off and connect the power cord. 2 Insert the power supply plug for the DL Series wide band current probe that you are using into the power receptacle on this instrument. 3 Turn the power switch ON, and check that the front panel power indicator lights. Measurement Procedure Refer to the user s manual of the current probe you are using (model 700937, 701930, 701931, 701932 or 701933). Note When using the Current Prove (Model 701930, 701931, 701932 or 701933) together with this power supply, you may not be able to use a second current probe simultaneously depending on the value of the curernt being measured. The current consumption of the probe is dependent upon the value of the current being measured. Do not let the total current consumption of the probe exceed the rated output current of the 700938. See figure 1. 7
Measurement Procedure Current consumption (ma) Current consumption (ma) Current consumption (ma) Current consumption (ma) Current consumption (ma) 200 150 100 50 0-15 -10-5 5 10 15-50 -100-150 -200 Value of the current being measured (A) 700937 700 600 500 400 300 200 100 0-300 -200-100 -100 0 100 200 300-200 -300-400 -500-600 -700 Value of the current being measured (A) 701930 600 500 400 300 200 100 0-700-600-500-400-300-200-1000 100 200 300 400 500 600 700-200 -300-400 -500-600 Value of the current being measured (A) 701931 600 500 400 300 200 100 0-50 -40-30 -20-10 0 10 20 30 40 50-100 -200-300 -400-500 -600 Value of the current being measured (A) 701932 600 500 400 300 200 100 0-700-600-500 -400-300-200 100 0 100 200 300 400 500 600 700-100 -200-300 -400-500 -600 Value of the current being measured (A) 701933 DC AC (f=50hz) Positive current Negative current DC AC (f=50hz) Positive current Negative current DC AC (f=50hz) Positive current Negative current DC AC (f=50hz) Positive current Negative current DC AC (f=50hz) Positive current Negative current Figure 1 Current consumption* vs. current to be measured (typical) *Total of positive and negative power 8 IM700938-01E
Description of Parts Power Supply Receptacle The pin assignment of the receptacle is shown in the following. 4 1 3 2 1 Not used 2 +12V 3-12 V 4 GND Fuse Replacement If the fuse blows, replace it as shown in Figure. WARNING In order to prevent electric shock, always disconnect the power cord from the receptacle before replacing the fuse. Always replace the fuse with a new fuse of the specified rating. Never use a fuse of other than the specified rating, and never short circuit the fuse holder to prevent an accident resulting in injury or death. 100 V, 120 V: F1.0 AL/250 V 20 mm x 5 mm dia. 220 V, 240 V: F0.5 AL/250 V 20 mm x 5 mm dia. 1 Turn OFF the power switch and unplug the power cord. 2 Insert a tool such as a flathead screwdriver into the fuse holder notch in the power supply inlet, and use it to pry out the fuse holder. 3 When Replacing the Power Fuse Replace the power fuse with another fuse of the specified rating. When Switching the Current Voltage (1) Remove the voltage selector box from the fuse holder, rotate the box so that the desired voltage can be seen through the viewing window, then reinsert it into the fuse holder. Confirm that the desired voltage setting appears in the viewing window. (The display will be upside down.) (2) Replace the power fuse with another fuse of the specified rating. 4 Reinsert the fuse holder into the power inlet. AC Inlet Use a tool such as a flathead screwdriver to pry out the fuse holder. Screwdriver Fuse holder 9
Description of Parts When Switching the Current Voltage Voltage selector box Fuse holder Viewing window 220 240 100 120 Remove the voltage selector box, rotate it so that the numbers visible through the viewing window match the line voltage that you are using, then reinsert the box into the fuse holder. When Replacing the Power Fuse Fuse 10 IM700938-01E
Specifications Product Specifications Compatible sensors 700937 Current Probe 700939 FET Probe 701920 Differencial Probe 701930 Current Probe 701931 Current Probe 701932 Current Probe 701933 Current Probe Number of power supply connectors 2 Output voltage ±12 V ±0.5 V Operating temperature and humidity range 0 to 40 C (32 to 104 F), 80% RH or less (no condensation) Storage temperature and humidity range -10 to 50 C (14 to 122 F), 80% RH or less (no condensation) Location for use Indoor, altitude up to 2000 m (6562 feet) Rated output current 600 ma (the total value of both outputs) Rated supply voltage 100 V AC (120, 220, and 240 V requires specification) (Voltage fluctuation of 10% from the rated supply voltage are taken into account.) Ripple supply voltage 3 mvp-p (at the rated output current) Rated supply frequency 50/60 Hz Maximum rated power 60 VA (at the rated output current) External dimensions Approx. 73(W) 110(H) 186(D) mm Approx. 2.87 (W) 4.33 (H) 7.32 (D) Mass Approx. 1.1 kg Approx. 38.8 oz. Accessories Power cord, Instruction manual, Spare fuse (in the fuse holder) 100 V, 120 V : F1.0 AL/250 V, 20 mm 5 mm dia. 220 V, 240 V : F0.5 AL/250 V, 20 mm 5 mm dia. Standards Applying Safety EN61010-1 Pollution Degree 2 EMC Emission EN61326-1 Class B EN55011 Class B, Group 1 EN6100-3-2 Class B EN6100-3-3 EMC standards of Australia and New Zealand EN55011 Class B, Group 1 Immunity EN61326-1 Table 1 (Basic immunity requirement) Corrective Action to be Taken in the case of an Abnormality If an message appears on the screen, refer to the following pages. If maintenance service is required, or if the instrument still does not operate properly even if the proper corrective action has been taken, contact your nearest YOKOGAWA representatives, listed on the back cover of this manual. Symptom Possible Cause Corrective Action The power cannot be turned ON. The fuse is blown. Replace the fuse. 11