SCM202
Industrial signal conditioner
SCM202
Industrial signal conditioner
DESCRIPTION
SCM 202 is a galvanic isolated transducer for 35mm DIN rail mounting that converts input – alternate voltage (0-500V AC), to 4-20mA current. Conversion is proportional and linear. Transducer is supplied from measurement loop since output connection (4/20mA current) is passive 2-wire. It is possible to adjust zero current and conversion span. By connecting voltmeter to test connectors it is possible to monitor loop current without interrupting it. SCM 202 signal conditioner is used for safe voltage measuring motors, pumps, heaters and other devices which are intended to use this voltage range.
APPLICATION
Analog signal conditioners convert, isolate, and amplify signals. SCM202 can convert voltage signals to standard 4 to 20 mA signals. Also, it can isolate multiple field-measurement devices on a common power supply to help prevent interference that can occur due to ground loops or common-mode noise.
TECHNICAL SPECIFICATION
Accuracy | ±0.1% of full range, typical (for 2-100%) for sinusoidal input
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Temperature stability | ±0.02%/oC
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Response time | 220 ms (0-98%)
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Output voltage ripple | 0.1% of full range RMS
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Frequency range | 40-500Hz
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Galvanic isolation | 2.5KV RMS in 1 minute
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Loop power supply | 10-32VDCc
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Output current | 4-20mA
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Test tap | 40-200mV represents 4-20mA (shunt 10ohm ±1%)
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Output over-voltage protection | 33V tranzorb
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Output over-current protection | slow fuse 100mA 20x5mm
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Current loop resistance | Rmax(ohms)=(Vsupply-10)/0.02
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Zero adjustment | ±25% min
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Span adjustment | ±25% min
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Operating temp. range | 0-70 ˚C without condensation
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Storage temp. range | -25 to 85 ˚C
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Enclosure | plastic 35x89x71mm, IP50
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Mounting | standard 35mm rail
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