Daiichi Electronics STT2-92A Instruction Manual Download Page 10

Q-222-038 

 

 

7.3 Electrical strength, Mechanical strength 

 

Item 

Specification 

Insulation 
resistance 

Between electric circuit and case (ground). 

50MΩ or more at DC500V 

Between auxiliary supply terminals and input, output 
terminals. 
Between input terminals and output terminals. 

Voltage test 

(Power frequency 
withstand voltage) 

Between electric circuit and case (ground). 

AC2210V (50/60Hz) 5 seconds or 
AC2000V (50/60Hz) 1 minute 

Between auxiliary supply terminals and input, output 
terminals. 
Between input terminals and output terminals. 

Impulse voltage 
test 

Between auxiliary supply, input terminals and case 
(ground). (Output circuits are grounded) 

5kV 1.2/50μs 
(Both positive and negative 
polarity, for 3 times each) 

Between auxiliary supply terminals and input terminals.  
(Other circuits are grounded) 
Between input terminals and auxiliary supply terminals.  
(Other circuits are grounded) 
Between input terminals. (Other circuits are grounded) 
Between auxiliary supply terminals.  
(Other circuits are grounded) 

Continuation 
over-input 

Input 

1.2 times continuation of rated voltage. 

Aux. supply 

1.2 times continuation of rated voltage (AC power supply, DC200/220V, DC24V) 
1.3 times continuation 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  1.5 times 10 seconds of rated voltage. 

once 

Vibration 

JIS C 60068-2-6    Sweep frequency range:10 to 55 to 10Hz,  

Displacement amplitude (one-sided amplitude):0.15mm,  
Number of sweep cycles:10 times 

Shock 

JIS C 60068-2-27   Peak acceleration:500m/s

2

 (when screw is installed),  

300m/s

2

 (when IEC/DIN rail is installed) 

 
 

7.4 Noise immunity 

 

Item 

Specification 

Damped oscillatory 
wave immunity test 
JEA B-402 

Error within ±10% when peak voltage 2.5kV, frequency 1MHz ±10%, applied 3 times for  
30 seconds. 
・Auxiliary supply circuit (Normal / Common) 
・Voltage input circuit (Normal / Common) 

Square impulse 
immunity test 
JEA B-402 

Error within ±10% when noise (1μs, 100ns width) is repeatedly applied for 5 minutes. 
・Auxiliary supply circuit (Normal / Common) 

Over 1.5kV 

・Voltage input circuit (Normal / Common) 

Over 1.5kV 

・Output circuit (Induction) 

Over 1.0kV 

Radio wave 
immunity test 

Error within ±10% when radio waves (5W) in the 150MHz and 400MHz bands are  
intermittently irradiated at 1m, and radio waves from mobile phones and wireless  
LAN (2.4GHz, 5GHz) at 0.5m. 

Electrostatic 
discharge immunity 
JEA B-402 

Conducted under normal usage conditions. 
Air discharge:15kV, Contact discharge:8kV, Error within ±10%. 

 

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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