DPM-900 Series
Strain Amplifier

  • TEDS

DPM-900 Series

Summary

· Built-in HPF cancels the effect of temperature drift
· Digital switch makes it easily to confirm the setting values even power off.
· High voltage output of ±10 V and high SN ratio
· Broad frequency response DC to 10 k Hz (913C)

Features

The DPM-900 Series is a Dynamic Strain Amplifier. The carrier-wave amplifier features highly accurate, excellent stable, and easy setting.

Products table

All display

DPM-911B
Frequency Response: DC to 2.5 kHz

  • TEDS

Specifications

Carrier Wave Frequencies 5 kHz
Frequency Response DC to 2.5 kHz
SN Ratio 60 dBp-p or more
Measuring Targets Strain gage, strain-gage transducers
Channels 1
Applicable Bridge Resistance 60 to 1000 Ω
Gage Factor 2.00 fixed
Bridge Excitation 2 Vrms, 0.5 Vrms, switchable
Balance Adjustment Resistance: Within ±2% (±10k ×10-6 strain)
Capacity: Within 2000 pF
Balance Adjustment Method Resistance: Auto balance
Accuracy: Within±0.5 ×10-6 strain
Storage:Saved in nonvolatile memory.
Capacitance: CST method (Capacitance self-tracking)
Nonlinearity Within ±0.1% FS
Output Impedance Approx. 2 Ω
Calibration Strain (CAL) ±(1 to 9999 ×10-6 strain)
Setting: CAL switch (4-digital switch)
Accuracy: Within ±(0.5% + 0.5 ×10-6 strain)
Sensitivity Adjustment Sensitivity is set in combination with CAL and
VOLTAGE OUT switches (4-digit digital switches)
CAL switch range: 100 to 9999 ×10-6 strain by 1 ×10-6 strain step
VOLTAGE OUT switch range: 1.00 to 10.00 by 0.01 V step
Accuracy: Within ±0.5%
Range: x200 to x20000
Fine Sensitivity Adjustment Range: 1 to 1/2.5
LPF Transfer characteristic : 2nd Order Butterworth
Cutoff frequencies : 10, 30, 100, 300 Hz, 1k Hz, and FLAT - 6 steps
Amplitude ratio at cutoff point : -3±1 dB
Attenuation : (-12±1) dB/oct (Except set to 1 kHz)
HPF Cutoff frequencies : 0.2 Hz, OFF- 2 steps
Output OUTPUT A : ±10 V (Load resistance 5 kΩ or more)
OUTPUT B : ±10 V (Load resistance 5 kΩ or more)
Stability Temperature
Zero point: ±0.1 ×10-6strain per °C
Sensitivity: ±0.05%/ºC
Time
Zero point: ±0.5 ×10-6 strain per 24h
Sensitivity: ±0.3%/24h
Power supply
Zero point: ±0.05%FS/power fluctuation ±10%
Sensitivity: ±0.05%/power fluctuation ±10%
Withstand Voltage 1 k VAC for 1 minute between measuring bridge and case
1 k VAC for 1 minute between AC power supply and case
Output Voltage Indication 4 1/2 digit digital display (7-segment LED) 11-segment LED bar meter
Over Input Indication Output voltage display flashing (4 1/2 digit digital display only)
Check Functions Bridge check
Key Lock Functions Locks all keys other than POWER switch.
(Allows settings on digital CAL and VOLTAGE OUT switches to be changed)
Remote Functions Balance adjustment execute (BAL), calibration strain output execute (CAL), key lock
TEDS Reads the sensor TEDS information, and sets the rated output to the VOLTAGE OUT output voltage.
Actual Load Calibration Sets actual load input to the VOLTAGE OUT output voltage.
Operating Temperature -10 to 50°C
Operating Humidity 20 to 85% (Non-condensing)
Power Supply 100 VAC, approx. 12 VA
115, 200, 230 VAC, or 10.5 to 15 VDC
(approx. 0.6 A at 12 VDC) also available.
Weight Approx. 1.2 kg
Standard Accessories Output cable U-08, U-59
AC power cable P-25 (With 2-pin conversion plug CM-39)
Fuse (Midget type 0.5 A, 1 A)
Instruction manual
Simple manual sticker
Optional Accessories Extension cables N-81 to N-85
Bridge boxes DB, DBB, and DBS
Housing case YC-A
Noise filter F-7B, F-BNC, amplifier stand FA,
shielded conversion cable N-117

Dimensions

DPM-912B
Frequency Response: DC to 5 kHz

  • TEDS

Specifications

Carrier Wave Frequencies 12 kHz
Frequency Response DC to 5 kHz
SN Ratio 57 dBp-p or more
Measuring Targets Strain gage, strain-gage transducers
Channels 1
Applicable Bridge Resistance 60 to 1000 Ω
Gage Factor 2.00 fixed
Bridge Excitation 2 Vrms, 0.5 Vrms, switchable
Balance Adjustment Resistance: Within ±2% (±10 k×10-6 strain)
Capacity: Within 2000 pF
Balance Adjustment Method Resistance: Auto balance
Accuracy: Within±0.5 ×10-6 strain
Storage: Saved in nonvolatile memory.
Capacitance: CST method(Capacitance self-tracking)
Nonlinearity Within ±0.1% FS
Output Impedance Approx. 2 Ω
Calibration Strain (CAL) ±(1 to 9999×10-6 strain)
Setting: CAL switch (4-digital switch)
Accuracy: Within ±(0.5% + 0.5 ×10-6 strain)
Sensitivity Adjustment Sensitivity is set in combination with CAL and
VOLTAGE OUT switches (4-digit digital switches)
CAL switch range: 100 to 9999 ×10-6 strain by 1 ×10-6 strain step
VOLTAGE OUT switch range: 1.00 to 10.00 by 0.01 V step
Accuracy: Within ±0.5%
Range: x200 to x20000
Fine Sensitivity Adjustment Range: 1 to 1/2.5
LPF Transfer characteristic : 2nd Order Butterworth
Cutoff frequencies : 10, 30, 100, 300Hz, 1k Hz, and FLAT - 6 steps
Amplitude ratio at cutoff point : -3±1 dB
Attenuation : (-12±1) dB/oct
HPF Cutoff Frequencies : 0.2 Hz, OFF- 2 steps
Output OUTPUT A: ±10 V (Load resistance 5 kΩ or more)
OUTPUT B: ±10 V (Load resistance 5 kΩ or more)
Stability Temperature
Zero point: ±0.1 ×10-6 strain per ºC
Sensitivity: ±0.05%/ºC
Time
Zero point: ±0.5 ×10-6 strain per 24h
Sensitivity: ±0.3%/24h
Power supply
Zero point: ±0.05%FS/power fluctuation ±10%
Sensitivity: ±0.05%/power fluctuation ±10%
Withstand Voltage 1 k VAC for 1 minute between measuring bridge and case
1 k VAC for 1 minute between AC power supply and case
Output Voltage Indication 4 1/2 digit digital display (7-segment LED)11-segment LED bar meter
Over Input Indication Output voltage display flashing (4 1/2 digit digital display only)
Check Functions Bridge check
Key Lock Functions Locks all keys other than POWER switch.
(Allows settings on digital CAL and VOLTAGE OUT switches to be changed)
Remote Functions Balance adjustment execute (BAL), calibration strain output execute (CAL), key lock
TEDS Reads the sensor TEDS information, and sets the rated output to the VOLTAGE OUT output voltage.
Actual Load Calibration Sets actual load input to the VOLTAGE OUT output voltage.
Operating Temperature -10 to 50°C
Operating Humidity 20 to 85% (Non-condensing)
Power Supply 100 VAC, approx. 12 VA
115, 200, 230 VAC, or 10.5 to 15 VDC
(approx. 0.6 A at 12 VDC) also available.
Weight Approx. 1.2 kg
Standard Accessories Output cable U-08, U-59, 1 each
AC power cable P-25 (With 2-pin conversion plug CM-39)
Fuse (Midget type 0.5 A, 1 A)
Instruction manual
Simple manual sticker
Optional Accessories Extension cables N-81 to N-85
Bridge boxes DB, DBB, and DBS
Housing case YC-A
Noise filter F-7B, F-BNC, amplifier stand FA,
shielded conversion cable N-117

DPM-913C
Frequency response: DC to 10 kHz

DPM-913C
  • TEDS

Specifications

Frequency Response DC to 10 kHz
Deviation: ±10 %
SN Ratio 48 dBp-p or more (RTI: Within 3.9 ×10-6 strain)
[When 500 ×10-6 strain is input, outputs 10.00 V.]
53 dBp-p or more
[When 1000 ×10-6 strain is input, outputs 10.00 V.]
[Common Condition]
Excitation Voltage: 2 Vrms,
Bridge Resistance: 120 Ω, LPF = FLAT
Measuring Targets Strain gage, strain-gage transducers
Channels 1
Applicable Bridge Resistance 60 to 1000 Ω
Gage Factor 2.00 fixed
Bridge Excitation Voltage: 2 Vrms, 0.5 Vrms, switchable
Frequency: 28 kHz sine wave
Balance Adjustment Resistance: Within ±2% (±10k ×10-6 strain)
Capacity: Within 2000 pF
Balance Adjustment Method Resistance: Auto-balance
Accuracy: Within ±0.5 ×10-6 strain
(When 500 ×10-6 strain is input, outputs 10 V, excitation voltage: 2 Vrms)
Storage: Written into nonvolatile memory
Capacitance: CST method (Auto-tracking)
Nonlinearity Within ±0.2% FS
Output Impedance Approx. 2 Ω
Calibration Strain 1 ×10-6 strain steps within ± (1 to 9999) ×10-6 strain
[Setting: CAL switch (4-digit digital switch)]
Accuracy: Within ± (0.5% + 1.0 ×10-6 strain)
Applicable scope of CAL Accuracy: ± (10 to 9999) ×10-6 strain
Sensitivity Adjustment The amplifier sensitivity is set in combined with
the CAL and VOLTAGE OUT switches (4-digit digital switch)
CAL switch range: 1 ×10-6 strain steps up to 100 to 9999 ×10-6 strain
VOLTAGE OUT switch range: 0.01 V steps up to 1.00 to 10.00 V
[Condition: When 500 ×10-6 strain is input, outputs 10.00 V
(× 20000) to 5000 ×10-6 strain is input, outputs 1.00 V (× 200)]
[Setting Example: When 500 is set to CAL, VOLTAGE OUT is 10.00 (× 20000) to 5000 is set to CAL, VOLTAGE OUT is 1.00 (× 200)]
Accuracy: Within ±0.5 %
Fine Sensitivity Adjustment Range: 1 to 1/2.5
LPF Transfer characteristic : 2nd Order Butterworth
Cutoff frequencies : 10, 30, 100, 300, 1k Hz, and FLAT, 6 steps
Amplitude Ratio : -3±1 dB, at cutoff point
Attenuation : (-12±1) dB/oct
HPF Cutoff Frequencies : 0.2 Hz and off (2 steps)
Output OUTPUT A: ±10 V (Load resistance 5 kΩ or more)
OUTPUT B: ±10 V (Load resistance 5 kΩ or more)
Stability Temperature
Zero point: ±0.2 ×10-6 strain/ºC
Sensitivity: ±0.05%/ºC
Time
Zero point: ±1.0 ×10-6 strain/24h
Sensitivity: ±0.3%/24h
Power supply
Zero point: ±0.05%FS/power fluctuation ±10%
Sensitivity: ±0.05%/power fluctuation ±10%
Withstand Voltage 1k VAC for 1 min between measuring bridge and case
1 k VAC for 1 min between AC power supply and case
Output Voltage Indication Output voltage display flashing(4 1/2 digit digital display only)
Over Input Indication Output voltage indication flickers(4 1/2-digit digital indication only)
Check Functions Bridge check
Sensor Connection Check Functions When the input is open, output saturates to the negative side.
Key Lock Functions Setting methods other than POWER switch become invalid
(However, the setting values of the CAL and VOLTAGE OUT switches can be changed.)
Remote Functions Capable of controlling the following functions
Balance adjustment (BAL)
Addition of the calibration signal (CAL)
Key lock
Synchronization Method Automatically determines internal (INT) or external (EXT) and manual setting
TEDS Read the TEDS information of the TEDS-compatible sensor and set the rated output to the output voltage of the VOLTAGE OUT switch
(Condition: Within the setting range of the sensitivity adjuster)
Actual Load Calibration Set the actual load to the output voltage of the VOLTAGE OUT switch
(Condition: Within the setting range of the sensitivity adjuster)
Vibration Resistance 5 to 200 Hz, 29.4 m/s2 (3G)
X, Y, and Z directions: 12 cycles with 10 minutes/cycle
Shock Resistance 15 G, 11 ms or less
X, Y, and Z directions: each 3 times
Operating Temperature 10 to 50 ºC
Operating Humidity 20 to 85 %RH (noncondensing)
Power Supply 90 to 110 VAC (Approx. 12 VA: 100 VAC)
10.5 to 15 VDC (Approx. 0.6 A: 12 VDC)
The following products are also available upon request.
DPM-913C A115: 108 to 132VAC
DPM-913C A200: 180 to 220VAC
DPM-913C A230: 207 to 253VAC
Dimensions 49 (W) × 128.5 (H) × 262.5 (D) mm
(Excluding protrusions)
Weight Approx. 1.2 kg
Standard Accessories Output cable U-08 (1.5 m)
Output cable U-59 (1.5 m)
AC power cable P-25 (With 2-pin conversion plug CM-52),
Fuse (Midget type 0.5, 1 A)
Instruction manual
Simple manual sticker

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