DPM-950 Series
Strain Amplifier

  • TEDS

DPM-950 Series

Summary

· Robust against inverter noise.
· 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

Features

The DPM-950 Series is a Dynamic Strain Amplifier. The carrier-wave amplifier features strong against invert noise.

Relative images

DPM-950 series

Products table

All display

DPM-951A
Frequency Response: DC to 2 kHz (Deviation ±10%)

  • TEDS

Specifications

Carrier Wave Frequencies 5 kHz
Measuring Targets Strain gages, strain-gage transducers
Channels 1
Simultaneous operation is available by using multiple units.
Compatible Bridge Resistance 60 to 1000 Ω
Gage Factor 2.00 fixed
Bridge Excitation 2 Vrms, 0.5 Vrms, switchable
Balance Adjustment Resistance: Within ±2% (±10000 ×10-6 strain)
Capacitance: 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)
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)
Applicable scope of CAL accuracy: ±(10 to 9999) ×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 (CAL)
(Set with CAL switches)

VOLTAGE OUT switch range: 1.00 to 10.00 by 0.01 V step

Accuracy: Within ±0.5%
 (When Bridge Excitation is 2 Vrms)

Range: ×200 to ×20000
Fine Sensitivity Adjustment Range: 1 to 1/2.5
Frequency Response DC to 2 kHz
Deviation: ±10%
LPF Transfer characteristic : 2nd order Butterworth
Cutoff frequencies : 10, 30, 100, 300, 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
SN Ratio 53 dBp-p or more
RTI: Within 2 ×10-6 strainp-p, when 500 ×10-6 strain is input, outputs 10.00 V.

58 dBp-p or more
When 1000 ×10-6 strain is input, outputs 10.00 V.

[Common Condition]
 Bridge Excitation: 2 Vrms
 Bridge Resistance: 120 Ω
 LPF = FLAT
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 °C
Sensitivity: ±0.05%/ºC

Time
Zero point: ±0.5 ×10-6 strain/24 h
Sensitivity: ±0.3%/24 h

Power supply
Zero point: Within ±0.05%FS/power fluctuation ±10%
Sensitivity: Within ±0.05%/power fluctuation ±10%

Stability condition: When 500 ×10-6 strain is input, outputs 10.00 V.
Withstand Voltage 1000 VAC for 1 min between measuring bridge and case
1000 VAC for 1 min between AC power supply and case
Output Voltage Indication 4½ digit digital display (7-segment LED)
11-segment LED bar meter
Over Input Indication Output voltage display flashing
(4½ digit digital display only)
Check Functions Bridge check
Key Lock Function Locks all keys other than POWER switch.
(Allows settings on CAL and VOLTAGE OUT switches to be changed.)
Remote Functions Capable of controlling the following functions.
 Balance adjustment execute (BAL)
 Calibration strain output execute (CAL)
 Key lock
Synchronization Method Automatically determines internal (INT) or external (EXT) and manual setting.
TEDS Reads the sensor TEDS information, and sets the rated output to the VOLTAGE OUT output voltage.
(Condition: Within the setting range of the sensitivity adjuster)
Actual Load Calibration Sets actual load input to the VOLTAGE OUT output voltage.
(Condition: Within the setting range of the sensitivity adjuster)
Vibration Resistant 5 to 200 Hz, with 29.4 m/s2 (3 G)
in X, Y and Z directions for 12 cycles, 10 min/cycle
Impact Resistant 15 G, 11 ms or less,
in X, Y and Z directions, every 3 cycles
Operating Temperature -10 to 50°C
Operating Humidity 20 to 85% (Non-condensing)
Storage Temperature -30 to 70°C
Power Supply 90 to 110 VAC (Approx. 12 VA: 100 VAC)
10.5 to 15 VDC (Approx. 0.6 A: 12 VDC)

Following models are also available.
DPM-xxxx A115: 108 to 132 VAC
DPM-xxxx A200: 180 to 220 VAC
DPM-xxxx A230: 207 to 253 VAC
xxxx: Part of model, example; 951A
Dimensions 49 W ×128.5 H ×262.5 D mm (Excluding protrusions)
Panel-cut dimensions: 50 W ×113 H mm
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-52)
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-1B

Dimensions

DPM-951A

DPM-952A
Frequency Response: DC to 5 kHz (Deviation ±10%)

  • TEDS

Specifications

Carrier Wave Frequencies 12 kHz
Measuring Targets Strain gages, strain-gage transducers
Channels 1
Simultaneous operation is available by using multiple units.
Compatible Bridge Resistance 60 to 1000 Ω
Gage Factor 2.00 fixed
Bridge Excitation 2 Vrms, 0.5 Vrms, switchable
Balance Adjustment Resistance: Within ±2% (±10000 ×10-6 strain)
Capacitance: 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)
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)
Applicable scope of CAL accuracy: ±(10 to 9999) ×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 (CAL)
(Set with CAL switches)

VOLTAGE OUT switch range: 1.00 to 10.00 V by 0.01 V step

Accuracy: Within ±0.5%
 (When Bridge Excitation is 2 Vrms)

Range: ×200 to ×20000
Fine Sensitivity Adjustment Range: 1 to 1/2.5
Frequency Response DC to 5 kHz
Deviation: ±10%
LPF Transfer characteristic : 2nd order Butterworth
Cutoff frequencies : 10, 30, 100, 300, 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
SN Ratio 47 dBp-p or more
RTI: Within 2 ×10-6 strainp-p, 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]
 Bridge Excitation: 2 Vrms
 Bridge Resistance: 120 Ω
 LPF = FLAT
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 °C
Sensitivity: ±0.05%/ºC

Time
Zero point: ±0.5 ×10-6 strain/24 h
Sensitivity: ±0.3%/24 h

Power supply
Zero point: Within ±0.05%FS/power fluctuation ±10%
Sensitivity: Within ±0.05%/power fluctuation ±10%

Stability condition: When 500 ×10-6 strain is input, outputs 10.00 V.
Withstand Voltage 1000 VAC for 1 min between measuring bridge and case
1000 VAC for 1 min between AC power supply and case
Output Voltage Indication 4½ digit digital display (7-segment LED)
11-segment LED bar meter
Over Input Indication Output voltage display flashing
(4½ digit digital display only)
Check Functions Bridge check
Key Lock Function Locks all keys other than POWER switch.
(Allows settings on CAL and VOLTAGE OUT switches to be changed.)
Remote Functions Capable of controlling the following functions.
 Balance adjustment execute (BAL)
 Calibration strain output execute (CAL)
 Key lock
Synchronization Method Automatically determines internal (INT) or external (EXT) and manual setting.
TEDS Reads the sensor TEDS information, and sets the rated output to the VOLTAGE OUT output voltage.
(Condition: Within the setting range of the sensitivity adjuster)
Actual Load Calibration Sets actual load input to the VOLTAGE OUT output voltage.
(Condition: Within the setting range of the sensitivity adjuster)
Vibration Resistant 5 to 200 Hz, with 29.4 m/s2 (3 G)
in X, Y and Z directions for 12 cycles, 10 min/cycle
Impact Resistant 15 G, 11 ms or less,
in X, Y and Z directions, every 3 cycles
Operating Temperature -10 to 50ºC
Operating Humidity 20 to 85% (Non-condensing)
Storage Temperature -30 to 70°C
Power Supply 90 to 110 VAC (Approx. 12 VA: 100 VAC)
10.5 to 15 VDC (Approx. 0.6 A: 12 VDC)

Following models are also available.
DPM-xxxx A115: 108 to 132 VAC
DPM-xxxx A200: 180 to 220 VAC
DPM-xxxx A230: 207 to 253 VAC
xxxx: Part of model, example; 952A
Dimensions 49 W ×128.5 H ×262.5 D mm (Excluding protrusions)
Panel-cut dimensions: 50 W ×113 H mm
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-52)
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-1B

Housing Cases

YC-3A
Portable Housing Case (3 housing units)

Model YC-3A
YC-3A-AC/DC
Object Product Model DPM-900 series
CDV-900A
CDA-900A
VAQ-700A
DA-710A
Housing Units 3
Power Supply 100 VAC (YC-3A)
100 VAC or 12 VDC (YC-3A-AC/DC)
Standard Accessories AC power cable P-17 (With 2-pin conversion plug CM-52)
Instruction manual
Optional Accessories Dummy panel for 1 channel: YB-DUMMY
Handle for YC-A: YC-HANDLE

Dimensions

YC-A

YC-4A
Portable Housing Case (4 housing units)

YC-4A
Model YC-4A
YC-4A-AC/DC
Object Product Model DPM-900 series
CDV-900A
CDA-900A
VAQ-700A
DA-710A
Housing Units 4
Power Supply 100 VAC (YC-4A)
100 VAC or 12 VDC (YC-4A-AC/DC)
Standard Accessories AC power cable P-17 (With 2-pin conversion plug CM-52)
Instruction manual
Optional Accessories Dummy panel for 1 channel: YB-DUMMY
Handle for YC-A: YC-HANDLE

YC-6A
Portable Housing Case (6 housing units)

YC-6A
Model YC-6A
YC-6A-AC/DC
Object Product Model DPM-900 series
CDV-900A
CDA-900A
VAQ-700A
DA-710A
Housing Units 6
Power Supply 100 VAC (YC-6A)
100 VAC or 12 VDC (YC-6A-AC/DC)
Standard Accessories AC power cable P-17 (With 2-pin conversion plug CM-52)
Instruction manual
Optional Accessories Dummy panel for 1 channel: YB-DUMMY
Handle for YC-A: YC-HANDLE

YC-8A
Portable Housing Case (8 housing units)

Model YC-8A
YC-8A-AC/DC
Object Product Model DPM-900 series
CDV-900A
CDA-900A
VAQ-700A
DA-710A
Housing Units 8
Power Supply 100 VAC (YC-8A)
100 VAC or 12 VDC (YC-8A-AC/DC)
Standard Accessories AC power cable P-17 (With 2-pin conversion plug CM-52)
Instruction manual
Optional Accessories Dummy panel for 1 channel: YB-DUMMY
Handle for YC-A: YC-HANDLE

Dimensions

YC-A

Noise Filters

F-7B
Noise Filter

Object Product Model For input of all DPM series models

F-BNC
Noise Filter

Object Product Model For output of all DPM series models

FA-1B
Amplifier Stand

Object Product Model DPM-900 series
DA-710A
CDV-900A
CDA-900A
VAQ-700A

Page Top

To Ensure Safe Usage

The bridge check function shows the error information - that indicates the wire-breaking location - on the monitor.
Note that if 2 or more wires are broken, the bridge check function shows the error information of only one wire.

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