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This rate meter is configured for 11/60 V DC, 24 V AC, 48 V AC. It has display range of 999999/-199999. It suits period or frequency measurement and angular position or rpm indication (with quadrature sensor).
This rate meter is configured for 11/60 V DC, 24 V AC, 48 V AC. It has display range of 999999/-199999. It suits period or frequency measurement and angular position or rpm indication (with quadrature sensor).
Panel meter 96 x 48 mm (1/8 DIN) and 6 digits with 14 mm digit height, configurable with 5 impulse counter modes, 2 ratemeter modes and a 1 periodmeter mode.
Omega's DPF20 Series of indicators offer real flexibility for measurement of a wide range of frequency or pulse inputs. The display is easily configured to indicate frequency, rate, period or count.
This makes the meter ideal for flow applications where they can display flow rate or total from a variety of different flow sensors. Or for quadrature signals, to indicate angular position or rotational speed and direction.
Highly configurable, accepts all types of sensors (NPN, PNP, push-pull, Namur, inductive, pick-up, mechanical, TTL, CMOS, ...) including quadrature signals (single and bidirectional encoder signals).
Options for output and control with 1, 2 and 3 relays, transistor outputs, SSR drive controls, isolated analog outputs, communications in Modbus RTU, RS-485 ASCII and RS-232. Special options with 4 and 6 relay outputs.
Independent alarms configurable as maximum or minimum, with 1 or 2 setpoints per alarm, hysteresis, independent activation and deactivation delays and control for inverted relay.
Connections by plug-in screw terminals. For industrial applications.
Features
Applications
| Number of digits | 6 |
| Series | DPF20 Series |
| Type | rate meter |
| Display | 7 segments led |
| Supply voltage | 11/60 V DC |
| Digit color | red or green |
| Supply voltage | 24 V AC |
| Maximum reading | 999999 |
| Supply voltage | 48 V AC |
| Minimum reading | -199999 |
| Configuration | Analog Current/Voltage |
| Decimal point | configurable |
| Main Functions | Counter, ratemeter, period meter |
| Display refresh | 15 readings / second |
| Display Digits | 6 |
| Memory retention | yes, retains reading value in case of power loss |
| Display Range | 999999/-199999 |
| Signals accepted | NPN, PNP, Namur, pick-up, TTL, inductive, mechanical, quadrature |
| Decimal Point | Configurable |
| Max. Vdc at input | ±30 Vdc |
| LED Color | Red standard; green optional |
| Input impedance | 2K4 with pull-up or pull-down resistor, 470K without pull resistor |
| Accuracy of the quartz | ±0.01 % |
| Digit Height | 0.55" (14 mm) |
| Thermal drift | 20 ppm / °C |
| Signals Accepted | NPN, PNP, Namur, pick-up, TTL, inductive, mechanical, quadrature |
| Excitation output voltage | +18 Vdc, +15 Vdc, +9 Vdc, +5 Vdc |
| Excitation Voltage | 5 V DC, 9 V DC, 15 V DC, 18 V DC (maximum 70 mA) |
| Excitation maximum current | 70 mA |
| Maximum V DC at Input Terminals | ±30 V DC |
| Excitation protection | yes, current limited to 70 mA |
| Input Impedance | 2.4 kΩ with pull-up or pull-down resistor; 470 k without resistor |
| Counter maximum frequency | 250 kHz in FAST mode, 9 kHz normal mode |
| Scaling Factor | Multiplier and divider from 1 to 999999 |
| Ratemeter maximum frequency | 500 kHz, minimum 1 mHz with SLOW mode active |
| Connections | Plug-in screw terminal |
| Periodmeter maximum frequency | 500 kHz, minimum 1 mHz with SLOW mode active |
| Standard Power | 85 to 265 V AC/DC (isolated 2,500 V AC) |
| Consumption | less than 1.5 W only meter, less than 4.0 W meter with options |
| Low Power | 11 to 60 V DC and 24/48 V AC (isolated 1500 V AC) |
| Configuration | 3 buttons front keypad |
| Front Panel Protection | NEMA 4 (IP65) |
| Front protection | IP65 |
| Power Consumption | <1.5 W (meter only); <4.0 W (meter with options) |
| Mounting | panel |
| Quartz Accuracy | ±0.01% |
| Connections | plug-in screw terminal |
| Thermal Stability | 20 ppm/°C |
| Housing material | ABS, polycarbonate (V0) |
| Display Refresh | 15/second |
| Operating temperature | 32°F to 122°F (0°C to 50°C) |
| Maximum Frequencies | Counter: up to 250 KHz; Ratemeter and Period Meter: up to 500 KHz |
| Storage temperature | -4°F to 158°F (-20°C to 70°C) |
| Minimum Frequencies | Down to 1 mHz (0.001 Hz) (ratemeter and period meter) |
| Warm-up time | 15 minutes |
| Warm Up | 15 minutes |
| Power | 11 to 60 Vdc and 24/48 Vac |
| Front Panel Size | 3.78 x 1.89" (96 x 48 mm) |
| Isolation | 1500 Veff (tested for 60 sec.) |
| Panel Cut-Out | 3.62 x 1.73" (92 x 44 mm) |
| Dimensions | Front size: 3.78" x 1.89" (96 x 48 mm, 1/8 DIN) Panel cut-out: 3.63" x 1.74" (92 x 44 mm) Depth from panel: 3.58" (91 mm) (including terminals) |
| Depth Behind Panel | 3.58" (91 mm) including terminals |
| Weight | less than 150 grams |
| Operating Temperature | 32 to 122°F (0 to 50°C) |
| Storage Temperature | -4 to 158°F (-20 to 70°C) |
| Maximum V DC at Input Terminals | ±30 V DC |
| Configurable Reset | Front panel and rear remote reset, and reset linked to alarm activation |
| Preset | Configurable |
| Retention Memory | Recovers count value in case of power loss |
| Slow Function | For low frequency rate meter applications |
| Fast Function | For high frequency counter applications |
| Relay Output Option (R1) | 3 terminals (NC, NO, common) 250 V AC, maximum. 8A; isolation 3500 V AC; maximum current 8 A (resistive load); maximum voltage 250 V AC continuous |
| Transistor Output Option (T1) | Open Collector Output to control SSR relay with DC signal; isolation 3500 V DC opto-isolated; maximum voltage 35 V DC; maximum current 50 mA |
| SSR Control Option (SSR) | Output to control SSR, active or passive; DC Pulse; output voltage +15 V DC; maximum current 45 mA (passive); maximum external voltage 27 V DC |
| Analog Output Option (AO) | Output 4 to 20 mA or 0 to 10 V DC; isolation 1000 V DC; load impedances ≤350 Ω (4 to 20 mA active), ≥800 Ω, ≥10 KΩ (0 to 10 V DC); accuracy <0.1% FS; thermal stability 60 ppm/°C mA, 50 ppm/°C V DC; step response <75mS (to 99%) |
| Modbus RTU Option (RTU) | Function 4 Read_Input_Registers; addresses 01 to 247; Bus RS485; speed 57.6 Kbps to 600 bps; data format 8e1 (standard), 8o1, 8n2 |
| RS485 ASCII Option (S4) | ASCII protocol; isolation 1000 V DC; speed 57.6 Kbps to 600 bps; data format 8n1, 8o1, 8n2, 8e1; addresses 01 to 31; broadcast address 128 |
| RS232 ASCII Option (S2) | Retransmission of signal to allow "Daisy Chaining"; speed 57.6 kbps to 600 bps; data format 8n1 (standard), 8o1, 8n2, 8e1 |
| 4 Relays Option (R4) | 3 terminals (NC, NO, common) 250 V AC, maximum. 6A; isolation 2500 V AC; maximum current 6 A (resistive load); occupies 2 option slots |
| 6 Relays Option (R6) | 3 terminals (NC, NO, common) 250 V AC, maximum. 6A; isolation 2500 V AC; maximum current 6 A (resistive load); occupies all 3 option slots |
| Weight | <5.3 oz (<150 grams) |
| Number of digits | 6 |
| Series | DPF20 Series |
| Type | rate meter |
| Display | 7 segments led |
| Supply voltage | 11/60 V DC |
| Digit color | red or green |
| Supply voltage | 24 V AC |
| Maximum reading | 999999 |
| Supply voltage | 48 V AC |
| Minimum reading | -199999 |
| Configuration | Analog Current/Voltage |
| Decimal point | configurable |
| Main Functions | Counter, ratemeter, period meter |
| Display refresh | 15 readings / second |
| Display Digits | 6 |
| Memory retention | yes, retains reading value in case of power loss |
| Display Range | 999999/-199999 |
| Signals accepted | NPN, PNP, Namur, pick-up, TTL, inductive, mechanical, quadrature |
| Decimal Point | Configurable |
| Max. Vdc at input | ±30 Vdc |
| LED Color | Red standard; green optional |
| Input impedance | 2K4 with pull-up or pull-down resistor, 470K without pull resistor |
| Accuracy of the quartz | ±0.01 % |
| Digit Height | 0.55" (14 mm) |
| Thermal drift | 20 ppm / °C |
| Signals Accepted | NPN, PNP, Namur, pick-up, TTL, inductive, mechanical, quadrature |
| Excitation output voltage | +18 Vdc, +15 Vdc, +9 Vdc, +5 Vdc |
| Excitation Voltage | 5 V DC, 9 V DC, 15 V DC, 18 V DC (maximum 70 mA) |
| Excitation maximum current | 70 mA |
| Maximum V DC at Input Terminals | ±30 V DC |
| Excitation protection | yes, current limited to 70 mA |
| Input Impedance | 2.4 kΩ with pull-up or pull-down resistor; 470 k without resistor |
| Counter maximum frequency | 250 kHz in FAST mode, 9 kHz normal mode |
| Scaling Factor | Multiplier and divider from 1 to 999999 |
| Ratemeter maximum frequency | 500 kHz, minimum 1 mHz with SLOW mode active |
| Connections | Plug-in screw terminal |
| Periodmeter maximum frequency | 500 kHz, minimum 1 mHz with SLOW mode active |
| Standard Power | 85 to 265 V AC/DC (isolated 2,500 V AC) |
| Consumption | less than 1.5 W only meter, less than 4.0 W meter with options |
| Low Power | 11 to 60 V DC and 24/48 V AC (isolated 1500 V AC) |
| Configuration | 3 buttons front keypad |
| Front Panel Protection | NEMA 4 (IP65) |
| Front protection | IP65 |
| Power Consumption | <1.5 W (meter only); <4.0 W (meter with options) |
| Mounting | panel |
| Quartz Accuracy | ±0.01% |
| Connections | plug-in screw terminal |
| Thermal Stability | 20 ppm/°C |
| Housing material | ABS, polycarbonate (V0) |
| Display Refresh | 15/second |
| Operating temperature | 32°F to 122°F (0°C to 50°C) |
| Maximum Frequencies | Counter: up to 250 KHz; Ratemeter and Period Meter: up to 500 KHz |
| Storage temperature | -4°F to 158°F (-20°C to 70°C) |
| Minimum Frequencies | Down to 1 mHz (0.001 Hz) (ratemeter and period meter) |
| Warm-up time | 15 minutes |
| Warm Up | 15 minutes |
| Power | 11 to 60 Vdc and 24/48 Vac |
| Front Panel Size | 3.78 x 1.89" (96 x 48 mm) |
| Isolation | 1500 Veff (tested for 60 sec.) |
| Panel Cut-Out | 3.62 x 1.73" (92 x 44 mm) |
| Dimensions | Front size: 3.78" x 1.89" (96 x 48 mm, 1/8 DIN) Panel cut-out: 3.63" x 1.74" (92 x 44 mm) Depth from panel: 3.58" (91 mm) (including terminals) |
| Depth Behind Panel | 3.58" (91 mm) including terminals |
| Weight | less than 150 grams |
| Operating Temperature | 32 to 122°F (0 to 50°C) |
| Storage Temperature | -4 to 158°F (-20 to 70°C) |
| Maximum V DC at Input Terminals | ±30 V DC |
| Configurable Reset | Front panel and rear remote reset, and reset linked to alarm activation |
| Preset | Configurable |
| Retention Memory | Recovers count value in case of power loss |
| Slow Function | For low frequency rate meter applications |
| Fast Function | For high frequency counter applications |
| Relay Output Option (R1) | 3 terminals (NC, NO, common) 250 V AC, maximum. 8A; isolation 3500 V AC; maximum current 8 A (resistive load); maximum voltage 250 V AC continuous |
| Transistor Output Option (T1) | Open Collector Output to control SSR relay with DC signal; isolation 3500 V DC opto-isolated; maximum voltage 35 V DC; maximum current 50 mA |
| SSR Control Option (SSR) | Output to control SSR, active or passive; DC Pulse; output voltage +15 V DC; maximum current 45 mA (passive); maximum external voltage 27 V DC |
| Analog Output Option (AO) | Output 4 to 20 mA or 0 to 10 V DC; isolation 1000 V DC; load impedances ≤350 Ω (4 to 20 mA active), ≥800 Ω, ≥10 KΩ (0 to 10 V DC); accuracy <0.1% FS; thermal stability 60 ppm/°C mA, 50 ppm/°C V DC; step response <75mS (to 99%) |
| Modbus RTU Option (RTU) | Function 4 Read_Input_Registers; addresses 01 to 247; Bus RS485; speed 57.6 Kbps to 600 bps; data format 8e1 (standard), 8o1, 8n2 |
| RS485 ASCII Option (S4) | ASCII protocol; isolation 1000 V DC; speed 57.6 Kbps to 600 bps; data format 8n1, 8o1, 8n2, 8e1; addresses 01 to 31; broadcast address 128 |
| RS232 ASCII Option (S2) | Retransmission of signal to allow "Daisy Chaining"; speed 57.6 kbps to 600 bps; data format 8n1 (standard), 8o1, 8n2, 8e1 |
| 4 Relays Option (R4) | 3 terminals (NC, NO, common) 250 V AC, maximum. 6A; isolation 2500 V AC; maximum current 6 A (resistive load); occupies 2 option slots |
| 6 Relays Option (R6) | 3 terminals (NC, NO, common) 250 V AC, maximum. 6A; isolation 2500 V AC; maximum current 6 A (resistive load); occupies all 3 option slots |
| Weight | <5.3 oz (<150 grams) |
