OHD1-M Datasheet, PDF (16/27 Pages) NEC – NEC TOKIN Sensors

Magnetic Direct Current Sensor MDCS^®
Applications
• Inverter-based home appliances (Air-conditioners etc.)
• General-purpose inverters
• AC variable-speed drive and servo drive
• Industrial machines • UPS • DC motor control
• FAX and other multifunction telephone series (THS Series)
Outline
Magnetic direct current sensors (MDCS^®) use a magnetic
substance and hole device for magnetic detection of
direct current. They detect all currents (DC, AC and
pulse), and the output voltage varies in proportion to the
strength of the current measured.
Features
• Detection of both direct currents and alternating
currents (including pulse currents)
• Fluctuations in output from changes in the power
supply voltage and the ambient temperature are small.
• Excellent linearity of measured current and the
converted power output
• The measured current and the secondary output side
are insulated.
Rated value and conditions (Ta=25℃ )
Item
Marking
Amplifier built-in type
Single power supply operating type (Magnetic proportion system)
Model
10V21 12V21^*2 15V21
20V21 24V21^*2 25V21
LA12
30V21
32V21 36V21^*2 40V21
Rated curent
Primary side windings ^*1
（A）
（Turn）
IcL1
−
± 10
6
± 12
6
± 15
4
± 20
3
± 24
3
± 25
2
± 30
2
± 32
2
± 36
2
± 40
2
Scope of measurement
−
−
0 to 100% of rated current（lcL1）
Power supply voltage
（V） Vcc
＋ 12 ± 5％
Vee
−
Consumption curernt （mA）max.
−
40
Output voltage
（V） Vh
± 2.000 ± 0.060（at lcL1, RL ＝ 10KΩ）
Residual voltage
（V） Voff
± 2.500 ± 0.060（at 0A, RL ＝ 10KΩ）
Hysterisis
(mV）max. Vhys
60
Power supply voltage variation (mV）max.
−
30（Vcc ＝＋ 12V ±５％）
Vh temperature characteristics （%／℃） −
± 0.15
Voff temperature characteristics （mV ／℃） −
±4
Pulse response
（μs）max.
Tp
20（di ／ dt ＝ 100AT ／μs）
Linearity
（%）
g
− 2 to 2
Insulation withstand voltage
−
−
AC2000V ／ 1min.（Between wire and terminals）
Insulation resistance
−
−
500MΩ／ DC500V（Between wire and terminals）
Operating temperature range
（℃） Ta
− 10 to ＋ 75
Storage temperature range
（℃） Ts
− 15 to ＋ 80
*1 Besides the standard windings, any other windings within the rated current are possible.
*2 Sample delivery for this model may take extra time.
48V21
± 48
2
50V21
± 50
2
60V21
± 60
1
16　NEC TOKIN Sensors Vol.11
●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC TOKIN for updated product data.
●Please request for a specification sheet for detailed product data prior to the purchase.
●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.
2012.06.04 0000SENVOL11E1206H0