NR-ST04 Keyence

Specifications

Model		NR-ST04 ^1^2
Type		Strain measurement unit
Input method		Balanced differential input, channels not insulated from each other, input channels insulated from other units (PC)
Number of channels		4 ch ^*3
Measurement cycle		Maximum sampling cycle: 20 μs (50 kHz) to 60 s
A/D converting system		Successive approximation, simultaneous sampling of all channels
A/D resolution		16 bit
Input frequency band		5 kHz DC max. (−3 dB)
Maximum input rating		±1.0 V
Withstand voltage	Input to system bus/earth	1500 VAC (50/60 Hz) for 1 minute
Input impedance		1 MΩ or more
Input type	Voltage input	±2 mV, ±5 mV, ±10 mV, ±20 mV, ±50 mV
	Strain input	±1000 μST, ±2000 μST, ±5000 μST, ±10000 μST, ±20000 μST
Measurable range		±50 mV: −55.00 to +55.00 mV ±20 mV: −22.000 to +22.000 mV ±10 mV: −11.000 to +11.000 mV ±5 mV: −5.500 to +5.500 mV ±2 mV: −2.2000 to +2.2000 mV ±20000 μST: −22000 to +22000 μST ±10000 μST: −11000.0 to +11000.0 μST ±5000 μS: −5500.00 to +5500.00 μST ±2000 μST: −2200.0 to +2200.0 μST ±1000 μST: −1100.00 to +1100.00 μST
Measurement accuracy	Gain accuracy	±0.2% of F.S. (with low-pass filter of 8 Hz and 50 Hz sampling averaged 20 times)
Display resolution		±50 mV: 10 μV ±20 mV: 1 μV ±10 mV: 1 μV ±5 mV: 1 μV ±2 mV: 0.1 μV ±20000 μST: 1 μST ±10000 μST: 0.5 μST ±5000 μS: 0.25 μST ±2000 μST: 0.1 μST ±1000 μST: 0.05 μST
Buffer memory		4M data^*4
Warm up time		30 minutes or more
Applicable gauge resistance		Quarter bridge / half bridge system: 120 Ω (A 350 Ω strain gauge requires an external bridge box.); Full bridge system: 120 Ω to 1 kΩ
Applied voltage		2 VDC (±0.4%)
Balance adjustment	System	Electronic balancing (auto-balancing)
	Balance adjustment accuracy	±0.1% of F.S. (with low-pass filter of 8 Hz and 50 Hz sampling averaged 20 times)
	Balance adjustment range	±29000 μST (during strain input), ±29 mV (during voltage input)
Gauge ratio		2.0 (fixed)
Low pass filter	Cutoff frequency	Auto, 5 kHz, 3.5 kHz (3 kHz), 2 kHz (1.5 kHz), 1 kHz (750 Hz), 500 Hz (370 Hz), 250 Hz (200 Hz), 120 Hz (100 Hz), 60 Hz (50 Hz), 30 Hz (25 Hz), 15 Hz (12 Hz), 8 Hz (6 Hz), 4 Hz (3 Hz); Value in parentheses is for 20 kHz sampling.
	Attenuation characteristics	5th order Bessel filter, −30 dB/oct
Zero-point stability	Temperature characteristics	±2 μST/°C, ±2 μV/°C ^*5
	Chronological changes	±1.5 μST/8 h, ±3 μV/8 h ^*5
Gain stability	Temperature characteristics	±0.05% of F.S./°C ^*5
	Chronological changes	±0.3% of F.S./8 h ^*5
Common mode noise reduction ratio		80 dB or more (60 Hz DC max.)
Rating	Power consumption	3.0 W or less
Environmental resistance	Ambient temperature	0 to +40°C 32°F to 104°F
	Relative humidity	10 to 85% RH (no condensation)
Weight		Approx. 230 g 8.12 oz (including two OP-51584: NR-ST04 10-pole terminal blocks)
^1 The above specifications are the values when auto-balancing is performed after the warm-up period in an environment with a temperature of 23°C ±3°C 73.4°F ±5.4°F. ^2 ST = strain / μ = 10-6 ^3 Max. expansion: 216 ch (with 54 units connected, using NR-X100W), 24 ch (with 6 units connected, using NR-500) ^4 Limited by the NR-X100W buffer memory when using the NR-X100W. ^*5 Does not include temperature characteristics and changes over time of built-in bridge resistors. Built-in bridge resistor stability: ±5 ppm/°C or less, ±50 ppm/year

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€783,95

1-year warranty

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Specifications

Model		NR-ST04 ^1^2
Type		Strain measurement unit
Input method		Balanced differential input, channels not insulated from each other, input channels insulated from other units (PC)
Number of channels		4 ch ^*3
Measurement cycle		Maximum sampling cycle: 20 μs (50 kHz) to 60 s
A/D converting system		Successive approximation, simultaneous sampling of all channels
A/D resolution		16 bit
Input frequency band		5 kHz DC max. (−3 dB)
Maximum input rating		±1.0 V
Withstand voltage	Input to system bus/earth	1500 VAC (50/60 Hz) for 1 minute
Input impedance		1 MΩ or more
Input type	Voltage input	±2 mV, ±5 mV, ±10 mV, ±20 mV, ±50 mV
	Strain input	±1000 μST, ±2000 μST, ±5000 μST, ±10000 μST, ±20000 μST
Measurable range		±50 mV: −55.00 to +55.00 mV ±20 mV: −22.000 to +22.000 mV ±10 mV: −11.000 to +11.000 mV ±5 mV: −5.500 to +5.500 mV ±2 mV: −2.2000 to +2.2000 mV ±20000 μST: −22000 to +22000 μST ±10000 μST: −11000.0 to +11000.0 μST ±5000 μS: −5500.00 to +5500.00 μST ±2000 μST: −2200.0 to +2200.0 μST ±1000 μST: −1100.00 to +1100.00 μST
Measurement accuracy	Gain accuracy	±0.2% of F.S. (with low-pass filter of 8 Hz and 50 Hz sampling averaged 20 times)
Display resolution		±50 mV: 10 μV ±20 mV: 1 μV ±10 mV: 1 μV ±5 mV: 1 μV ±2 mV: 0.1 μV ±20000 μST: 1 μST ±10000 μST: 0.5 μST ±5000 μS: 0.25 μST ±2000 μST: 0.1 μST ±1000 μST: 0.05 μST
Buffer memory		4M data^*4
Warm up time		30 minutes or more
Applicable gauge resistance		Quarter bridge / half bridge system: 120 Ω (A 350 Ω strain gauge requires an external bridge box.); Full bridge system: 120 Ω to 1 kΩ
Applied voltage		2 VDC (±0.4%)
Balance adjustment	System	Electronic balancing (auto-balancing)
	Balance adjustment accuracy	±0.1% of F.S. (with low-pass filter of 8 Hz and 50 Hz sampling averaged 20 times)
	Balance adjustment range	±29000 μST (during strain input), ±29 mV (during voltage input)
Gauge ratio		2.0 (fixed)
Low pass filter	Cutoff frequency	Auto, 5 kHz, 3.5 kHz (3 kHz), 2 kHz (1.5 kHz), 1 kHz (750 Hz), 500 Hz (370 Hz), 250 Hz (200 Hz), 120 Hz (100 Hz), 60 Hz (50 Hz), 30 Hz (25 Hz), 15 Hz (12 Hz), 8 Hz (6 Hz), 4 Hz (3 Hz); Value in parentheses is for 20 kHz sampling.
	Attenuation characteristics	5th order Bessel filter, −30 dB/oct
Zero-point stability	Temperature characteristics	±2 μST/°C, ±2 μV/°C ^*5
	Chronological changes	±1.5 μST/8 h, ±3 μV/8 h ^*5
Gain stability	Temperature characteristics	±0.05% of F.S./°C ^*5
	Chronological changes	±0.3% of F.S./8 h ^*5
Common mode noise reduction ratio		80 dB or more (60 Hz DC max.)
Rating	Power consumption	3.0 W or less
Environmental resistance	Ambient temperature	0 to +40°C 32°F to 104°F
	Relative humidity	10 to 85% RH (no condensation)
Weight		Approx. 230 g 8.12 oz (including two OP-51584: NR-ST04 10-pole terminal blocks)
^1 The above specifications are the values when auto-balancing is performed after the warm-up period in an environment with a temperature of 23°C ±3°C 73.4°F ±5.4°F. ^2 ST = strain / μ = 10-6 ^3 Max. expansion: 216 ch (with 54 units connected, using NR-X100W), 24 ch (with 6 units connected, using NR-500) ^4 Limited by the NR-X100W buffer memory when using the NR-X100W. ^*5 Does not include temperature characteristics and changes over time of built-in bridge resistors. Built-in bridge resistor stability: ±5 ppm/°C or less, ±50 ppm/year

Model		NR-ST04 ^1^2
Type		Strain measurement unit
Input method		Balanced differential input, channels not insulated from each other, input channels insulated from other units (PC)
Number of channels		4 ch ^*3
Measurement cycle		Maximum sampling cycle: 20 μs (50 kHz) to 60 s
A/D converting system		Successive approximation, simultaneous sampling of all channels
A/D resolution		16 bit
Input frequency band		5 kHz DC max. (−3 dB)
Maximum input rating		±1.0 V
Withstand voltage	Input to system bus/earth	1500 VAC (50/60 Hz) for 1 minute
Input impedance		1 MΩ or more
Input type	Voltage input	±2 mV, ±5 mV, ±10 mV, ±20 mV, ±50 mV
	Strain input	±1000 μST, ±2000 μST, ±5000 μST, ±10000 μST, ±20000 μST
Measurable range		±50 mV: −55.00 to +55.00 mV ±20 mV: −22.000 to +22.000 mV ±10 mV: −11.000 to +11.000 mV ±5 mV: −5.500 to +5.500 mV ±2 mV: −2.2000 to +2.2000 mV ±20000 μST: −22000 to +22000 μST ±10000 μST: −11000.0 to +11000.0 μST ±5000 μS: −5500.00 to +5500.00 μST ±2000 μST: −2200.0 to +2200.0 μST ±1000 μST: −1100.00 to +1100.00 μST
Measurement accuracy	Gain accuracy	±0.2% of F.S. (with low-pass filter of 8 Hz and 50 Hz sampling averaged 20 times)
Display resolution		±50 mV: 10 μV ±20 mV: 1 μV ±10 mV: 1 μV ±5 mV: 1 μV ±2 mV: 0.1 μV ±20000 μST: 1 μST ±10000 μST: 0.5 μST ±5000 μS: 0.25 μST ±2000 μST: 0.1 μST ±1000 μST: 0.05 μST
Buffer memory		4M data^*4
Warm up time		30 minutes or more
Applicable gauge resistance		Quarter bridge / half bridge system: 120 Ω (A 350 Ω strain gauge requires an external bridge box.); Full bridge system: 120 Ω to 1 kΩ
Applied voltage		2 VDC (±0.4%)
Balance adjustment	System	Electronic balancing (auto-balancing)
	Balance adjustment accuracy	±0.1% of F.S. (with low-pass filter of 8 Hz and 50 Hz sampling averaged 20 times)
	Balance adjustment range	±29000 μST (during strain input), ±29 mV (during voltage input)
Gauge ratio		2.0 (fixed)
Low pass filter	Cutoff frequency	Auto, 5 kHz, 3.5 kHz (3 kHz), 2 kHz (1.5 kHz), 1 kHz (750 Hz), 500 Hz (370 Hz), 250 Hz (200 Hz), 120 Hz (100 Hz), 60 Hz (50 Hz), 30 Hz (25 Hz), 15 Hz (12 Hz), 8 Hz (6 Hz), 4 Hz (3 Hz); Value in parentheses is for 20 kHz sampling.
	Attenuation characteristics	5th order Bessel filter, −30 dB/oct
Zero-point stability	Temperature characteristics	±2 μST/°C, ±2 μV/°C ^*5
	Chronological changes	±1.5 μST/8 h, ±3 μV/8 h ^*5
Gain stability	Temperature characteristics	±0.05% of F.S./°C ^*5
	Chronological changes	±0.3% of F.S./8 h ^*5
Common mode noise reduction ratio		80 dB or more (60 Hz DC max.)
Rating	Power consumption	3.0 W or less
Environmental resistance	Ambient temperature	0 to +40°C 32°F to 104°F
	Relative humidity	10 to 85% RH (no condensation)
Weight		Approx. 230 g 8.12 oz (including two OP-51584: NR-ST04 10-pole terminal blocks)
^1 The above specifications are the values when auto-balancing is performed after the warm-up period in an environment with a temperature of 23°C ±3°C 73.4°F ±5.4°F. ^2 ST = strain / μ = 10-6 ^3 Max. expansion: 216 ch (with 54 units connected, using NR-X100W), 24 ch (with 6 units connected, using NR-500) ^4 Limited by the NR-X100W buffer memory when using the NR-X100W. ^*5 Does not include temperature characteristics and changes over time of built-in bridge resistors. Built-in bridge resistor stability: ±5 ppm/°C or less, ±50 ppm/year

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