Introduction
Thank you for purchase of DAIICHI ELECTRONICS product. Please read this instruction manual carefully before use. Keep this manual for future reference. Please contact with us in case this manual is lost or damaged.
Safety precautions
■■ Environment conditions ● Please be sure to use this product in a place that meets the following conditions. In places that do not meet this condition, malfunctions and failures, and performance and product life may be reduced. • Within the range of ambient temperature -10 to 55℃, humidity 5 to 90% RH. • Environment with low corrosive gas, dust, salt and oil smoke. (Corrosive gas : SO 2 / H2S, etc.) • Environment that is not affected by vibration or shock. • Environment with less external noise. • Altitude 2000m or less. ● If the input to this product is an inverter output (cycle control, SCR phase angle control, PWM control, etc.), the measurement error will be large.
■■ Outdoor use conditions
● These products are not a dust proof, water proof, and splash proof construction. Please avoid the place where dust is generated, and install it in a place where it will not be exposed to rain or water droplets. (Protection class IP30) ● Please do not install in the place where sunlight hits directly. Discoloration and degradation of a name plate, and deformation of the case by the surface temperature rise may occur. ● If the average daily temperature around this product exceeds 40℃, the service life may be shortened.
■■ Mounting and wiring
Please refer to this instruction manual for mounting and the wiring. ● Please refer to connection diagram for the wiring. ● Please avoid hot line work. ● Please use an electrical wire size suitable with the rated current. ● Please check the tightening of the screw. ● Please attach the terminal cover to prevent electric shock.
■■ Maintenance and inspection
●  Inspection during energization is dangerous. ● This product has no parts to replace during regular inspections. ● Check that the wiring and screws are not loose. ● Please wipe off lightly with the dry soft cloth. Please do not use the organic solvent, chemicals, cleaners, etc., such as an alcohol, for cleaning.
■ Storage
Please store in a place that meets the following conditions. ● The ambient temperature within -40 to +70°C (storage temperature), humidity 5 to 90% RH. ● Daily average temperature 40℃ or less. ● Places free of dust, corrosive gas, salt and oily smoke. ● Location that is not affected by vibration and shock. ● Aluminum electrolytic capacitors are used in products. Please energize the power supply within one year after purchase.
■■ Countermeasures against troubles
If trouble occurs within the warranty period, DAIICHI ELECTRONICS will repairs this product.
■ Disposal
Please dispose this product as industrial waste (non-combustible). Mercury parts and a nickel-cadmium battery are not used for this product.
■ Warranty period
The warranty period of the product is one year after the date of delivery.
■ Warranty scope
In the case that a defect is found in our product during the warranty period due to our responsibility, we will replace the defective part and repair. However, we will not be liable if the faults or defects are under any of the following items. ● When the faults or defects are resulted from the modification or repair carried out by any other entity than our company. ● Failure caused by violating various conditions regarding use, storage, etc. specified by the supplier. ● When the faults or defects are caused by a reason not belongs to purchased or delivered products. ● Damage or malfunction due to relocation or other transportation, movement or dropping. ● In case that the faults or defects are resulted from force majeure such as fire or abnormal voltage and natural calamity or disaster. Our company shall not be liable for compensation of damages caused by any reason which is not our responsibility, loss opportunity, loss profits incurred to the user, special damages and consequential damages whether foreseeable or not, or damages not relating to our products. ■■ Replacement cycle of the product We recommend updating the product for 10 years as a rough standard. ■ Change of instruction manual written contents This instruction manual changes written contents without a notice by product improvement etc.
Contents

1.
Features of product
■ Complied to JIS C 1111 : 2019 and IEC 60688 : 2012 ■ Free power supply specifications compatible with 80 to 264 VAC and 80 to 264 VDC, and 24 VDC/48 VDC power supply specifications are available. ■ Can also be used for distorted waveforms and SCR waveforms. ■ Power consumption and weight have been reduced by about 50% compared to our conventional products. ■ Compatible with two types of mounting methods for IEC/DIN rail mounting and wall mounting. 2.
Outline dimension
Please refer to the wiring diagram for the terminal arrangement. Note(1) Dimensions when IEC/DIN rail (height 15mm) is installed. (Please use a rail with a width of 35mm) The terminal cover is standard equipment.
Bundled items
3.
① Inspection certificate : 1 (Packed in an envelope) ② Terminal screw in a bag. M4 screw 7-piece set : 1
Mounting method
4.
Please install indoors in a place with low mechanical vibration, dust, and corrosive gas. And, please select indoors that are not affected by a strong electromagnetic field by large current bus, saturable reactor etc. in the vicinity.  There is no restriction on mounting position. Mounting can be done on 35mm width DIN rail mounting or screw mounting. For screw mounting, please install with M4 screw or M5 screw. (However, the screw is not attached. The tightening torque of a screw, M4 : 1.00 to 1.30N•m, M5 : 2.0 to 2.5N•m) There is no particular rule for the side-by-side spacing. Considering heat dissipation and wiring space, please leave 90mm or more space between the top and bottom. Please leave space between terminal and metal panel for 10mm or more. <Caution> Be sure to turn off the power and input signals before installing or removing the product to prevent danger. Combination mounting dimension example (unit : mm) ■ IEC/DIN rail mounting ■ Screw mounting (D : 40mm width transducer. ② : 56mm width transducer. Please use rail of IEC, DIN technical standard 35mm width rail (strong type). 《Recommendation product》》 Fuji Electric Co., Ltd. TH35-15AL
■ How to install this product in a IEC / DIN rail.
The claw of the upside of the slot for rail mounting in the bottom of this product is put in a rail. This product is fixable by pushing in the direction of an arrow below. ■■ How to remove this product from the IEC / DIN rail. Please insert a flathead screwdriver in the hole where a slider is square. Next, a slider is lowered in the direction of an arrow.  This product can be removed from the rail by pulling it up in the direction of the However, the case may be damaged if this product is pulled up without lowering a slider completely. arrow. 5.
Connection
Refer to the terminal name on the front name plate of the main unit, and connect according to the wiring diagram below or the wiring diagram name plate on the lower side of the main unit. Use the included M4 screws to connect the auxiliary power supply, input voltage, input current, output, and ground terminals. [Applicable solderless terminal] Solderless terminal for M4 screw Outer diameter of terminal, 8.5mm or less Tightening torque : 1.0 to 1.3 N•m Input current terminal Auxiliary supply terminal $1(±), S2(こ) • Grounding is class D grounding (grounding resistance 100Ω or less). • If there is a power line that causes noise or a sharp voltage fluctuation, separate the output wiring as much as possible. In addition, use twisted cable or shielded twisted cable. • This product will not be damaged even if the output terminal is left open in the current output specifications. • After completing the wiring work, attach the terminal cover. 6.
Handling explanation
Please handle it correctly after paying attention to the following points. (1) When applying the auxiliary power supply and input, check that the voltage and input signal of the auxiliary power supply conform to the specifications of this product. (2) Make sure that the external wiring is connected to the specified terminal position (listed on the nameplate). (3) Please use the output load within the output load range indicated on the name plate. If the output load range is exceeded, not only will the output error, but the product will be Especially for voltage output products, do not short-circuit the output. burdened. This product will not be damaged even if the output terminal is left open in the current output specifications.  However, a voltage of about 15V is generated. (4) The output adjustment range is BIAS : ±5% of the output span, MAX. : ±5% of the output span. Use only when adjustment is required for matching with connected devices.
7.1 Rating

7.7 Technical standards

8.
Input and output relationship

Calibration
Because this product is adjusted, there is not need of calibration especially. However, if discrepancy arises in an output in long-term use, please adjust in the next way. Remove the terminal cover and VR cap before adjustment, and attach the VR cap and terminal cover after adjustment. (1) For the output load, connect an actual load (within the output load range indicated on the name plate) or a simulated load with the same resistance value as the actual load. (2) Apply the auxiliary power supply (rated) and the input equivalent to 50% of the rated output value, and energize for 15 minutes. (3) Enter the lower limit of the rated output range and adjust with BIAS adjustment VR so that the output becomes the lower limit. Next, enter the upper limit of the rated output range and adjust the MAX adjustment VR so that the output reaches the upper limit. (The screwdriver for adjustment : Tip width of 1.8 to 2.3mm,  Phillips-head screwdriver or flat-blade screwdriver)
10.
Type composition
AC Current Transducer Type Specification code AETT2-91A- ①②③④

DAIICHI ELECTRONICS CO., LTD.
Tokyo Office : 11-13, Hitotsuya 1-chome, Adachi-ku, Tokyo, 121-8639, JAPAN. TEL：+81-3-3885-2411 , FAX：+81-3-3858-3966 Kyoto Office : 1-19, Ichinobe-Nishikawahara, Jyoyou-shi, Kyoto, 610-0114, JAPAN. TEL : +81-774-55-1391 , FAX : +81-774-54-1353 Revision A,  DATE: October 31, 2022