Precise Digital Scaling Through Front Panel Key Pad
Dual Engineering Units Measuring with 3 Character Alphanumeric Labels
Plug-in Options Include Alarms, Math, Analog Outputs, RS-232C/20mA, and DC Power
Up to 1µV/Count Sensitivity
Lock-out Switch Prevents Unauthorized Program Tampering
Power Cord Included
The DP80 series has been discontinued. Please see the DP25B-S as a possible alternative or contact our Pressure, Strain and Force Engineering department.
The OMEGA DP80 Series digital strain gage indicators demonstrate impressive performance for wide compatibility with lower output, bonded foil type transducers, as well as higher output semiconductor type transducers. One of four input ranges are selectable within each instrument to optimize the sensitivity. The front panel membrane keypad facilitates accurate digital scaling, eliminating any dip switches, pot adjustments or reference standards. Three alphanumeric LEDs are included for engineering unit labels (e.g. psi, KG, LBS) or can be assigned as "0" for active display of dead zeros. An additional feature of the DP80 is the inclusion of a primary and secondary engineering units display, both of which easily be selected at the front panel. The secondary display can be any mathematical equivalent to the primary display. System calibration can be accomplished using 3-point live load (actual weight on scale) or by entering the appropriate transducer sensitivity (mV/V).
SPECIFICATIONS Excitation Supplies: DP87: 5 Vdc @ 30 mA, 10 Vdc @ 60 mA and 15 Vdc @ 90 mA DP88/DP89:5 Vdc @ 120 mA, 10 Vdc @ 240 mA and 15 Vdc @ 350 mA Accuracy: 0.01% of full scale range, ±1 digit Repeatability: ±1 digit Zero Offset: Entire input range Zero Stability: 0.5 µV/°C no measurable drift with time Span Stability: 0.005% of reading/°C; 0.1% of reading per year Normal Mode Noise Rejection: > 60 dB @ 50/60 Hz Common Mode Noise Rejection: > 120 dB @ 50/60 Hz Input Impedance: > 10 MOhms to 500 MOhms depending on range Display: 8-digit, 14-segment alphanumeric LED’s, 14 mm (0.54") high, and one negative (-) LED at left of LED array Display Count Rate: ±100,000 active Reading Rate: 2 readings per second Overload Protection: 270 Vdc or ac RMS across inputs and input to ground. Power lead to ground 1500 Vdc or ac RMS Ambient Operating Conditions: 0 to 50°C (32 to 122°F); 0 to 90% RH non-condensing Storage Temperature: -40 to 65°C (-40 to 149°F) Input Connections: ac power quick connect; dc power and sensors screw terminals; RS-232C DB25 connector Case Construction: metal, black anodized, extruded aluminum Power: 90 to 132 Vac; 48 to 400 Hz Weight: DP87 1.8 kg (4 lb), DP88/DP89 2.7 kg (6 lb) (without options) Dimensions, DP87: 67 H x 136 W x 250 mm D (2.6 x 5.3 x 9.75") Cutout: 68 H x 138 mm W (2.7 x 5.4") Dimensions, DP88/DP89: 67 H x 272 W x 250 mm D (2.6 x 10.6 x 9.75") Cutout:68 H x 274 mm W (2.7 x 10.7") .
注: Model DP87 can accommodate one additional option. Model DP88 and DP89 can accommodate up to four additional options.