Daiichi Electronics STT2-92A Instruction Manual Download Page 2

Q-222-038 

 

 

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

 / H

2

S, 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℃ (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. 

Summary of Contents for STT2-92A

Page 1: ...Q 222 038 INSTRUCTION MANUAL V V PHASE ANGLE TRANSDUCER STT2 92A MODEL B...

Page 2: ...ase 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 te...

Page 3: ...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 p...

Page 4: ...thod 4 5 Connection 6 6 Handling explanation 7 7 Specification 7 1 Rating 8 7 2 Performance 8 7 3 Electrical strength Mechanical strength 9 7 4 Noise immunity 9 7 5 EMC 10 7 6 Structure and environmen...

Page 5: ...certificate 1 Packed in an envelope Terminal screw in a bag M4 screw 4 piece set 1 M4 screw 5 piece set 1 4 Mounting method Please install indoors in a place with low mechanical vibration dust and co...

Page 6: ...e 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 th...

Page 7: ...ss Tightening torque 1 0 to 1 3 N m Connection diagram AUX SUPPLY OUTPUT A B 1 U LOAD 2 3 V U E LOAD 4 V 1 2 BUS 2 START 1 Grounding is class D grounding grounding resistance 100 or less If there is a...

Page 8: ...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 5 The output value when only the auxiliary power supply...

Page 9: ...r to the specification code for other ratings 7 2 Performance Item Specification Class index 1 0 Response time 1 second or less Ripple 1 p p or less Fluctuation value of influence due to ambient tempe...

Page 10: ...tion of rated voltage DC100 110V DC57V continuous DC48V Short time over input Input 2 times 10 seconds of rated voltage once 2 times 1 second of rated voltage 10 times 10 second intervals Aux supply 1...

Page 11: ...61000 4 6 Power frequency magnetic field immunity test Frequency 50 60Hz Field strength 30A m Performance standard A During testing Within 20 error After test Within inherent error EN61000 6 2 EN61000...

Page 12: ...d 7 7 Technical standards Item Specification Transducer JIS C 1111 2019 IEC 60688 2012 CE marking EMC Directive 2014 30 EU EN 61000 6 2 EN 61000 4 2 3 4 5 6 8 11 EN 61000 6 4 EN 55011 classA Group1 Lo...

Page 13: ...or 45 or 90 and adjust to the rated output value with MAX adjustment VR The screwdriver for adjustment Tip width of 1 8 to 2 3mm Phillips head screwdriver or flat blade screwdriver 10 Type compositio...

Page 14: ...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 R...

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