DPM-900 Series
Strain Amplifier
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
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
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
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 % (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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