Remove CT9557 and the Measuring Device ......21 Application Examples ..................22 Monitor the Current (CT9555, and CT9556) ......22 Measuring High Current or Multiple-line Circuit (Addition Function) .................. 23 Measuring Leakage Current or Current in a Non- measurable Line (Addition Function) ........
Introduction Introduction Thank you for purchasing the Hioki CT9555, CT9556, and CT9557 Sensor Unit(s). To obtain maximum performance from the product, please read this manual first, and keep it handy for future reference. Confirming Package Contents When you receive the device, inspect it carefully to ensure that no damage occurred during shipping.
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Confirming Package Contents Hioki Options (Sold Separately) The following options are available for the device. Contact your authorized Hioki distributor or reseller when ordering. CT9900 Conversion Cable L9217 Connection Cord CT9901 Conversion Cable 9165 Connection Cord CT9904 Connection Cable From each BNC terminal, connect to the connecting device with the L9217 or 9165 Connection Cord.
Safety Information Safety Information This device is designed to conform to IEC 61010 Safety Standards, and has been thoroughly tested for safety prior to shipment. However, using the device in a way not described in this manual may negate the provided safety features. Before using the device, be certain to carefully read the following safety notes: DANGER Mishandling during use could result in injury or death, as well as...
Operating Precautions Symbols on the Device Indicates cautions and hazards. When the symbol is printed on the device, refer to a corresponding topic in the Instruction Manual. Indicates DC (Direct Current). Symbols Relating to Standards Indicates the Waste Electrical and Electronic Equipment Directive (WEEE Directive) in EU member states.
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• Use only the supplied Model Z1008 AC Adapter (for the CT9555/ CT9556) or Z1002 AC Adapter (for the CT9557). AC adapter input voltage range is 100 V to 240 V AC at 50 Hz/60 Hz. To avoid electrical hazards and damage to the device, do not apply voltage outside of this range.
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Check before use Verify that the device operates normally to ensure that no damage occurred during storage or shipping. If you find any damage, contact your authorized Hioki distributor or reseller.
Overview and Features Overview and Features Overview The CT9555, CT9556, and CT9557 Sensor Unit(s) are input units that can output the measured data to measuring devices such as recorders, oscilloscopes, or electric power meters, by connecting the Hioki sensor having good characteristics.
Parts Names and Functions Parts Names and Functions CT9555 Front Rear CT9556 Front Rear CT9557 Front Rear...
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DEMAG of CH A does not function when the addition output is connected with the CT9904 connection cable to the device that has the Hioki ME15W at the input part of a current sensor such as the PW6001. Perform the offset cancelation by the zero- adjustment on the connecting device side.
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For accuracy, see “-2. Accuracy Specifications of Addition Wave Output” (p. 2 9). WAVE output CT9557 terminal (Hioki • The same waveform signal as the No.10 terminal, but this is ME15W male) a dedicated connector that supports Model PW6001. Connect with the CT9904 connection cable provided as a option.
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Parts Names and Functions • Method for calculating the additive output voltage for the CT9557 CH A SELECT Additive output (V) = 1 + N SELECT : CH A sensor output voltage (V) CH A : Total of sensor output voltages for channels whose “Total Output” switch has SELECT been enabled (V) : Number of channels whose “Total Output”...
Before using the instrument for the first time, verify that it operates normally to ensure that no damage occurred during storage or shipping. If you find any damage, contact your authorized Hioki distributor or reseller. Check items When the answer is “No”...
Measurement Methods Measurement Methods Use CT9555 or CT9556 Be sure to read before use “Operating Precautions” (p. 4 ). Make sure that the power supply switch of the device is turned off. Connect the AC adapter and the power cord to the device.
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Measurement Methods Turn on the power supply switch and check if the power LED lights up. (To perform demagnetization) Press the DEMAG switch. Note: If DEMAG and zero-adjustment functions are available in the sensor to be used, it is better to perform demagnetization from the sensor.
Measurement Methods Use CT9557 Be sure to read before use “Operating Precautions” (p. 4 ). Make sure that the power supply switch of the device is turned off. Connect the AC adapter and the power cord to the device. Pass the AC adapter cord through the locking clamp.
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Measurement Methods (To perform demagnetization) Press the DEMAG switch. Note: If DEMAG and zero-adjustment functions are available in the sensor to be used, it is better to perform demagnetization from the sensor. Note: The DEMAG SW of CH A will not function when the device is connected to a measuring device that automatically identifies with the CT9904.
Measurement Methods When Using the Addition Function Adds the signal of the connected sensor, and outputs an addition signal from the TOTAL OUTPUT terminal at the back of the device when the addition function is used. When 100% of the rated value is input to each sensor, the output signal is output as 2 V after addition averaging.
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Measurement Methods (When measuring the addition signal with PW6001) CH A Connect the WAVE output terminal (Hioki ME15W) at the back of the device to Model PW6001 using the CT9904 connection cable provided as a option. Refer to: “Connect CT9557 and the Measuring Device with the CT9904”...
Hold the upper part of the metal part 9709-05, CT686x-05 series, Directly connectable CT684x-05 series, and PW9100-03/04 (Hioki ME15W: Metal connector) 9709, CT686x series, and CT684x Connect using the optional CT9900 series conversion cable (Hioki PL23: Resin connector)
Verify that no current is being input to the current sensors that are connected to the CT9557. CT9557 rear Connect the WAVE terminal on the CT9557’s rear panel (Hioki ME15W male connector) to the measuring instrument with a CT9904 extension cable. • CT9557: Female shape side of the CT9904 extension cable •...
Measurement Methods Turn on the power of CT9557. Turn on the measuring device. If the measuring instrument you’re using provides functionality for automatically the type of current sensor that has been connected, it will detect the current sensor connected to Ch. A on the CT9557. Remove CT9557 and the Measuring Device Verify that no current is being input to the current sensors that are connected to the...
Application Examples Application Examples Monitor the Current (CT9555, and CT9556) Monitor the output of OUTPUT on the front panel for the DC (Idc) and the RMS output on the rear panel for the AC (Iac). AC can be monitored even with the logger that has no RMS conversion function such as a wireless logger.
Application Examples Measuring High Current or Multiple-line Circuit (Addition Function) Connect a sensor to each branched line and convert the signal to an added signal using the device. As shown in the illustration below, only one power meter (power analyzer) is needed because multiple sensors can be handled as one sensor.
Application Examples Measuring Leakage Current or Current in a Non-measurable Line (Addition Function) The addition function can be used as a subtracting function based on the wiring method. Leakage current can be easily measured by adding single-phase lines and three- phase lines.
Specifications Specifications CT9555 (1-channel), and CT9556 (1-channel/RMS) Specifications 1. General Specifications Operating environment Indoors, Pollution Degree 2, altitude up to 2000 m (6562 ft.) Operating temperature and Temperature; -10°C to 50°C (14°F to 122°F) humidity Humidity; Less than 40°C (104°F): 80% RH or less (no condensation) From 40°C to 45°C (104°F to 113°F): 60% RH or less...
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Product warranty period 3 year Accessories Refer to: “Device and Accessories” (p. 1 ) Connectable current sensor Current sensor with Hioki ME15W at the output terminal CT6841-05, CT6843-05, CT6844-05, CT6845-05, CT6846-05, CT6862-05, CT6863-05, CT6865-05, 9709-05, PW9100-03, and PW9100-04, etc. Connectable current sensor...
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Product warranty period 3 year Accessories Refer to: “Device and Accessories” (p. 1 ) Connectable current sensor Current sensor with Hioki ME15W (male) at the output terminal CT6841-05, CT6843-05, CT6844-05, CT6845-05, CT6846-05, CT6862-05, CT6863-05, CT6865-05, 9709-05, PW9100-03, and PW9100-04, etc...
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(female) at the sensor input Connectable in the Device with Hioki PL23 (female) CT9901 at the sensor input Options Refer to: “Hioki Options (Sold Separately)” (p. 2 ) 2. Accuracy Specifications -1. Basic Specifications WAVE Front panel Independently outputs waveform signals from each connected...
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(±5%) Conditions of guaranteed Guaranteed accuracy period: 1 year accuracy Guaranteed accuracy period from adjustment made by Hioki: 1 year Temperature and humidity for guaranteed accuracy: 23°C±5°C, 80% RH or less When a sine wave is input to the SENSOR terminal 1% to 150% of rated input voltage, design value of 5 Hz<f≤10 Hz...
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Specifications Response time 0.8 s (Time within the accuracy specification range when shifting by 0%→90%) 0.8 s (Time within the accuracy specification range when shifting by 100%→10%) Crest factor 3 (when a sine wave 2 V rms is input) Effect of radiated radio- 6% f.s.
Customers are not allowed to modify, disassemble, or repair the device. Doing so may cause fire, electric shock, or injury. Troubleshooting If the device seems to be malfunctioning, contact your authorized Hioki distributor or reseller. Cleaning To clean the device, wipe it gently with a soft cloth moistened with water or mild detergent.
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The fuse is housed in the power unit of the device. If the power does not turn on, the fuse may be blown. If this occurs, a replacement or repair cannot be performed by customers. Please contact your authorized Hioki distributor or reseller. Disposal...