EP1S NEC, EP1S Datasheet - Page 7

• Manufacturer Part Number: EP1S
• Description: LOW SOUND PRESSURE
• Manufacturer: NEC

TECHNICAL DATA
Coil Temperature (EP2S-3L1)
Operate Time (EP2S-3L1)
Distribution of Sound Pressure Level (for reference)
50
40
30
20
10
0
40
150
100
50
0
10
5
0
Sound Pressure Level (dBA)
50
Energized Time (minutes)
10
Applied Power (W)
0.5
V
V
V
coil
V
coil
coil
Mean
coil
60
= 7.5 V, I
= 12 V, I
1.0
= 7.5 V, I
= 12 V, I
EP2S–3L1
20
n = 80
C
C
C
C
= 25 A
= 25 A
= 0 A
= 0 A
1.5
70
Measuring Condition
30
Measuring Equipment : Precision Sound Meter
Detector-indicator Characteristic : Fast (F) specified in IEC 651
Relay Drive : 12 Vdc (Diode clamped)
Distance between Microphone and Sample : 50 mm
Background Noise : less than 35 dB (A)
(A) : Frequency Weighting Characteristic specified in IEC 651
Release time (EP2S-3L1)
50
40
30
20
10
0
100
40
50
0
10
EP2S / EP1S SERIES
5
0
Sound Pressure Level (dBA)
Release
0.5
50
I
C
Applied Power (W)
Applied Power (W)
0.5
= 0A
1.0
With Diode
Without Diode
1.0
60
Mean
EP2–3L1
1.5
Operate
n = 80
1.5
2.0
70
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