Raja Load Cell

Strain Amplifier

DC type dynamic strain amplifier DAS-406B

Feature

DC to 200 kHz frequency range
Standard equivalent strain amplifier with four digit digital switch setting
3 1/2 digit digital display
Specifications

Specifications
Measuring point	1 point / 1 unit
Applicable gage resistance	60 ohm to 1k-ohm
Gage factor	2.00
Bridge power supply	DC2 V(Changeable to DC1 V, 4 V and 10 V) with remote sensing function(50 mA or less)
Resistance balance adjustment range	Approx. ±1 % (Gage resistance 120 ohm, Approx. ±5 000x10-6 in strain)
Auto balancing	Auto balance time Approx.1 s, Accuracy ±0.1 %F.S.
Sensitivity	0.5 V output at the input of 100 x 10-6 in strain (With bridge power supply at DC2 V)
Output	MONITOR ±10 V, ±5 mA (Load resistance 2 k-ohm or more) OUTPUT ±10 V, ±30 mA (Load resistance 330 ohm or more) Output resistance 10 ohm or less Output capacitive load 0.1 micro-F or less
Non-linearity	±0.01 % F.S.
Standard equivalent strain(CAL)	Set with digital switch ±1 to ±9 999x10-6 in strain, Accuracy ±0.2 %F.S. or less at each point
Sensitivity adjustable range(ATT)	1, 1/2, 1/5, 1/10, 1/20, 1/50, 1/100, 0 Accuracy ±0.2 %F.S. at each point GAIN volumu valiable range 1 to 1/2.5 times continuous variable (VAR)
Frequency response range	DC to 200 kHz +1 dB, -3 dB (Filter at W/B)
Low-pass filter	10 Hz, 100 Hz, 1 kHz, 10 kHz, W/B Third bessel type
S/N ratio	46 dBp-p(ATT=1) with W/B condition 55 dBp-p with 10 Hz to 10 kHz
Display	Output voltage display 0.00 to ±10.00 Digital display (Green LED) Sampling Approx.4 times/s 0.00 or -0.00 flashes when output voltage is in non-linear zone
Temperature efficient	Zero shift ±0.1x10-6 in strain / 'C Sensitivity variation ±0.01 %F.S./ 'C
Efficient due to time	Zero shift ±5x10-6 in strain / 8 h Sensitivity variation ±0.05 %F.S./8 h
Efficient due to power supply	Zero shift ±1x10-6 in strain / variation of power supply voltage within ±10 % Sensitivity valliation ±0.01 %F.S. /variation of power supply voltage within±10 %
Operating temp./humidity range	Temperature :-10'C to 50'C, Humidity 85 %RHor less (Non condensing)
Power supply voltage	AC100 V±10 V, DC12 V 50/60 Hz
Power consumption	Approx. 10 VA(at AC100 V), Options DC12 V Approx. 0.8 A
Outline dimensions(WxHxD)	42 mmx176 mmx284.4 mm(excludes protruding parts)
Weight	Approx. 1.5 kg

Dynamic strain amplifier DSA - 631

Feature

Eqquipped with wire length compensating function and open circuit check function.
High sensitivity and high gain
Excellent visibility and operation
Dual power supply types
Specifications

Specifications
Measuring point	1 point per 1 unit
Applicable gage resistance	60 ohm to 1k-ohm
Gage factor	2.00
Bridge power supply	AC0.5 V, 2 V, 5 kHz sine wave, Sync input/output signal 2.5 VAC
Balance adjusting range	Deviation of resistive value : Approx. ±2 % (±10 000x10-6 in strain) Capacitive imbalance : Approx. 2 000 pF Balance adjusting Accuracy ±0.4x10-6 in strain (RANGE=200, without FINE, BV=2 V)
Maximum input range	±200 000 x 10-6 in strain (RANGE=20k, FINE=x2.5, BV=0.5 V)
Voltage sensitivity	±10 V within ±200 x 10-6 in strain
Shift of measuring range	200, 500, 1k, 2k, 5k, 10k, 20k (x10-6 in strain, x2/BV in value), OFF Fine adjustment continuously changeable in FINE ~ RANGE 2 steps changing amount can be selected.
Non-linearity	±0.1 %F.S.
Standard equivalent strain(CAL)	Set by digi-switch : ±1 to 9 999 x10-6 in strain Accuracy ±0.5 %rdg+0.5x10-6 in strain
Frequency response range	DC to 2 kHz±10 %
Hi-pass filter	0.5 Hz : 2-pole butterworth type (Filter descent response : -12 dB/oct)
Low-pass filter	10 Hz, 30 Hz, 100 Hz, 300 Hz, 500 Hz : 4-pole butterworth type (Filter descent response : -24 dB/oct)
Stability
Temperature efficient	Zero drift : Within ±0.1x10-6 in strain /'C Sensitivity : Within ±0.05 %F.S./'C
Efficient due to time	Zero drift : Within ±0.5x10-6 in strain /24 h Sensitivity : Within ±0.2 %F.S./24 h
Noise	2.0 x10-6 in strain p-p RTI (W/B, RANGE=200, Without FINE, BV=2 V, 120 ohm in bridge) 0.6 x 10-6 in strain p-p RTI (DC=100 Hz, RANGE=200, Without FINE, BV=2 V, 120 ohm in bridge)
Output	OUTPUT1 ±10 V, ±5 mA OUTPUT2 ±10 V, ±10 mA Output impedance 0.5 Ω or less, Capacitive load Operable up to 0.1 μF
Output adjustment	OUTPUT2 ADJ (Can be independently varied continuously from 1 to 1/10)
Operating temp./humidity range	Temp. -10'C to 50'C, Humidity 20 % to 85 %RH or less(Non condensing)
Power supply voltage, Power consumption	AC85 V to AC132 V/AC180 V to AC264 V (Internal switch must be changed) 9 VA or less DC10 V to DC30 V, 6 VA or less
Outline dimensions (W x H x D)	49.5 mm x 143 mm x 253 mm (excludes protruding parts)
Weight	Approx. 1.35 kg

Precision Calibrator PSC-350

Feature

350 ohm precision calibrator
Output calibrated by connecting this unit with a digital indicator, etc., for the strain gage based transducer.
Specifications

Specifications
Rated output	0.5 mV/V range 10 steps 2 mV/V range 10 steps 5 mV/V range 10 steps 10 mV/V range 10 steps
Error	0.02 %F.S. (Temperature range from 15'C to 25'C)
Excitation, maximum	DC 12V
Zero balance	±0.001 mV/V
Input resistance	350Ω ±7Ω
Output resistance	350Ω ±7Ω
Temp. effect on zero	0.03 %F.S. / 10'C
Temp. effect on output	0.03 %F.S. / 10'C
Operating temp./humidity range	Temperature 0'C to 50'C, Humidity85%RH or less(Non condensing)
Outline dimensions(WxHxD)	185mm x 47mm x 125mm (excludes protruding parts)
Weight	Approx. 1.3kg

Static Strain Digital Indicator PSD-704

Feature

Indicator for strain gage or strain gage applied transducer.
Check strain gage based transducers in mV/V.
Measure I/O resistance of strain gage based transducers. Insulation resistance measurement between load cell body and each cable wire is also available.
Applied RS-232C interface as a standard.
Specifications

Specifications
Bridge power supply	DC 2V±0.02 V Within 35 mA
Target for measurement	Strain measurement, Measurement on output of strain gage applied transducer, Meadurement on resistance value.
Measuring method	Deflection method (under measuring on strain or output of strain gage application)
Temperature efficient	Zero point ±0.2 x 10-6 in strain/'C, Sensitivity ±0.01 %F.S./'C (After 15 min. of warming up time with the range of x1)
Efficient due to time	Zero point ±0.2 x 10-6 in strain/8 h, Sensitivity ±0.01 %F.S./8 h (Temperature variation within ±2'C with the range of x1)
A/D sampling	4 times/s
Display	Dot matrix type liquid crystal display (with back light LED type)
Specification for strain measurement
Measuring method	1 gage 2 wire method Strain Gage : 120 ohm, 240 ohm, 350 ohm 1 gage 3 wire method Strain Gage : 120 ohm, 240 ohm, 350 ohm 2 gage method Strain Gage : 60 ohm to 1 000 ohm 4 gage method (Strain gage applied transducer) Strain Gage : 60 ohm to 1 000 ohm
Measuring range	x1 range : ±40 000 x 10-6 in strain 4GH range : ±3.500 0 mV/V (±7 000.0 x 10-6 in strain) (4 gage method, Only for strain gage applied transducer)
Resolution	x1range : 1 x 10-6 in strain 4GHrange : 0.000 1 mV/V (0.1x10-6 in strain) (4 gage method, Only for strain gage applied transducer)
Accuracy	x1range : ±0.08 %F.S.±1 digit 4GHrange : ±0.08 %F.S.±2 digit (4 gage method, Only for strain gage applied transducer)
Operating temp./humidity range	Temperature 0'C to 50'C, Humidity 85 %RHor less(Non condensing)
Power supply voltage	AC90 V to 132 V (in the usage of AC adapter) 50/60 Hz or battery drive by Ni-Cd battery.
Power consumption	Approx. 0.8 VA (When AC adapter is used.)
Outline dimensions(WxHxD)	210 mmx148.5 mmx40 mm (excludes protruding parts)
Weight	Approx. 1.7 kg