DPM Series
The Two-Minute Analog-To-Digital Meter Retrofit
Upgrade error-prone analog meters quickly with highly accurate, solid state Universatile digital indicators from RT Engineering.
The physical mounting dimensions of the DPM Series match most existing analog meters, eliminating the need to recut and redrill existing panels.
Capable of accepting AC or DC input signals from 50 mV to 500 V, one model can display Amps, Volts, RPM, GPM, FPM or other rate related engineering units of measurement. Accuracy, Reliability and Versatility backed by a two-year warranty.
Specifications
Voltage Model Specifications
- Typical Input Signals:
- AC or DC signals from motor armatures, line or reference voltages, tachometers, force transducers (load cells), shunts, current transformers, pressure and flow transducers
- Input Ranges:
- (A) 50mvDC; 100mvAC (B) 5VDC; 10VAC (C) 50VDC; 100VAC (D) 500VDC; 480VAC
- Input Resistance at Nominal Scale Values:
- 20K Ohms/volt DC 9K Ohms/volt AC
- AC Frequency Range:
- Max. signal: 2K Hz, Min. signal: 40 Hz
- Accuracy:
- .5‰ linear +/- 1 digit full scale
- Sampling Time:
- .33 seconds/reading update
- Response Time (0 to full scale):
- 6.5 seconds
- Power Requirement:
- 115VAC (+/- 10V), 50/60 Hz, 2 watts
- Operating Temperature:
- 5°C to 50°C
- Calibration Method:
- Scale selecting jumper and a 25-turn potentiometer
- Construction:
- 18 gauge steel with Lexan bezel over display
- Weight:
- 1 pound
Process Control Model Specifications
- Typical Input Signals:
- Current source, typically 4-20MA, 5-50MA, or offset voltage 1-5VDC, etc.
- "BIAS" Adjustment Range:
- 0-50‰ to full scale
- "SCALE" Adjustment Range:
- 0-100‰ of full scale
- Shunt Resistance:
- 250 ohms provided standard
- Accuracy:
- .5 linear +/- 1 digit full scale
- Sampling Time:
- .33 seconds/reading update
- Response Time (0 to full scale):
- 6.5 seconds
- Power Requirement:
- 115VAC (+/- 10V), 50/60 Hz, 2 watts
- Operating Temperature:
- 5°C to 50°C
- Construction:
- 18 gauge steel with Lexan bezel over display
- Weight:
- 1 pound
Pulse Model Specifications
- Typical Input Signals:
- Standard magnetic pickup (30 inches per sec. minimum gear or sprocket speed at 1/64" maximum gap) Hall effect type pickup which can operate from the 5VDC meter supply or slow speed type pickup such as RT Engineering P/N RT-58426. A 1/32" maximum gap is required between the gear and pickup. Output wave-form from either six step, pulse width modulated (PWM), or current source inverter up to 480VAC when the meter has proper interface. Signal isolation transformer P/N RT-TA-181210 is available if customer required.
- Standard Input Signal Range:
- 5PPS to 22,000PPS
- Accuracy:
- 1‰ linear +/- 1 digit full scale
- Sample Time:
- .33 seconds/reading update
- Response Time (0 to full scale):
- 6.5 seconds
- Power Requirement:
- 115VAC (+/- 10V), 50/60 Hz, 2 watts
- Operating Temperature:
- 5°C to 50°C
- Calibration Method:
- Range selecting capacitor and 25-turn potentiometer
- Construction:
- 18 gauge steel with Lexan bezel over display
- Weight:
- 1 pound
Dimensions
