Product Overview
The F6600/F6650 and F6700/F6750 are Flo-tech’s panel-mount digital displays — a sealed NEMA 4X / IP65 readout that turns a flow meter’s signal into a scaled flow rate, totalizes it, and drives alarms and process control. They split by the signal they read: the F6600/F6650 take a frequency input on a 6-digit display — the native output of a turbine sensor or an Ultima array — while the F6700/F6750 take an analog 4–20 mA or 0–10 V DC input on a 5-digit display. Either way you pick the power at order: AC on the F6600 / F6700, DC on the F6650 / F6750, with a regulated transmitter supply built in. Three expansion slots add, as ordered, a scalable analog output, a digital protocol (RS-232, EIA-485, Modbus, Profibus, or DeviceNet), and setpoint relays — so one box indicates, retransmits, and switches. On a sensor array it also shows pressure and temperature. The smallest frequency sensors — SAE 8, G1/4, or equivalent — need the optional F5140 K-Factor Scaler to drive the display.
Two families, by input and power
All four are the same 1/8 DIN, NEMA 4X / IP65 panel display with three expansion-card slots and a built-in transmitter supply. They split first by the signal they read (frequency vs. analog), then by power (AC vs. DC) — specify both at order.
- Magnetic-pickup / frequency input, 0.01 to 34 kHz; also takes switch contacts and CMOS / TTL outputs
- 6-digit LED — six indications (counter A/B/C, rate, rate max, rate min)
- Built-in 12 V DC sensor supply (100 mA max, short-circuit protected)
- Power: F6600 = AC (18 VA), F6650 = DC (14 W)
- 4–20 mA or 0–10 V DC input (16-bit A/D, 20 readings/sec)
- 5-digit LED, 1–20 updates/sec; 9-digit totalizer
- Built-in 24 V DC transmitter supply (±5%, 50 mA max)
- Power: F6700 = AC (15 VA), F6750 = DC (11 W)
Key Features & Benefits
- Splits by input — pick the one your meter speaks — the F6600/F6650 take a frequency / magnetic-pickup signal (what a turbine sensor outputs natively) on a 6-digit display; the F6700/F6750 take a 4–20 mA or 0–10 V DC signal on a 5-digit display. Match the display to whatever the sensor or array already puts out. One reads pulses, the other reads a loop.
- Three card slots make it a network node — each display has three expansion slots: one for a scalable analog output, one for serial comms (RS-232, EIA-485, Modbus, Profibus, or DeviceNet), and one for setpoint relays — so flow, pressure, and temperature read locally and transmit to a host, and relays trip on alarm. Indicate, retransmit, and switch from one box.
- AC or DC, your choice at order — the same display family comes AC-powered (F6600 / F6700, 85–250 V AC) or DC-powered (F6650 / F6750, 11–36 V DC), and an on-board regulated supply powers the connected sensor. Wire it to plant power or to a DC bus.
- Sunlight-readable on a sealed panel — a 0.56 in. sunlight-readable red LED behind a NEMA 4X / IP65 bezel reads in a bright shop or outdoors and stands up to washdown on a 1/8 DIN cut-out. Mount it where the operator stands.
Specifications
- Measurement principle
- Indicating display, not a sensor — the display reads the signal from a flow meter and scales it to a volumetric flow rate based on the meter’s properties; on a sensor array with pressure and/or temperature sensors it also accepts and shows those parameters. Basic functions are flow / pressure / temperature indication, totalization, alarm processing, and process control.
- Measured parameters
- Flow rate (rate, rate max, rate min on the F6600/F6650), totalized volume, and — from a sensor array — pressure and temperature. The F6600/F6650 give six indications: counter A, counter B, counter C, rate, rate max, and rate min, with annunciators showing which variable is on screen.
- Operating / fluid temperature
- Operating temperature 32–122°F (0–50°C); 32–113°F (0–45°C) with all three plug-in cards installed.
- Sensor inputs
- F6600/F6650 — magnetic-pickup / frequency input, 0.01 to 34 kHz, 80 mV p-p trigger sensitivity, ±40 V peak over-voltage protected; also accepts switch contacts and CMOS or TTL outputs. F6700/F6750 — 4–20 mA or 0–10 V DC (16-bit A/D, 20 readings/sec).
- Computed values
- Totalizer with a second / minute / hour / day time base; the F6700/F6750 total is 9 digits (alternating high-order / low-order), the F6600/F6650 counter is 8-digit max.
- Outputs
- Optional analog-output expansion card — a linear DC card scalable independently of the input range, set for 4–20 mA, 0–20 mA, or 0–10 V DC. Optional setpoint-alarm card — dual Form-C relays (5 A), quad Form-A relays (3 A), or sinking / sourcing quad open-collector logic outputs (customer-installed). An optional F6542 Form-C relay module adds a relay when a serial-comms card is fitted.
- Display
- F6600/F6650 — 6-digit, 0.56 in. sunlight-readable red LED (5-digit-max rate at ±0.01% accuracy, 8-digit-max counter). F6700/F6750 — 5-digit, 0.56 in. sunlight-readable red LED, 1–20 updates/sec.
- Digital communication
- Optional communication expansion card — RS-232, EIA-485, Modbus, Profibus, or DeviceNet (ordered with the display; factory-installed). Flow, pressure, and temperature readings transmit over the fitted protocol.
- Power
- A model choice, specified at order: AC (F6600 / F6700) 85–250 V AC, 50/60 Hz (15 VA F6700/F6750, 18 VA F6600/F6650); DC (F6650 / F6750) 11–36 V DC (11 W F6700/F6750, 14 W F6600/F6650). A regulated transmitter power supply is built in (F6700/F6750: 24 V DC ±5%, 50 mA max; F6600/F6650: 12 V DC ±10%, 100 mA max, short-circuit protected).
- Enclosure / rating
- NEMA 4X / IP65 panel-mount, CE compliant. Three expansion-card slots for the analog-output, communication, and setpoint-alarm cards.
- Dimensions / weight
- 1/8 DIN panel-mount: 3.80 in. (96.5 mm) W × 1.95 in. (49.5 mm) H bezel, 4.10 in. (104.1 mm) case depth; panel cut-out 3.62 in. (92.0 mm) × 1.77 in. (45.0 mm).
Common Applications
- Local readout for hydraulic-diagnostics test stands and monitoring panels
- Remote flow indication on mobile construction and marine equipment
- General industrial process metering where a flow reading has to be seen at the machine
- Totalizing and trending flow, with setpoint relays driving a pump, valve, or alarm
- Retransmitting flow, pressure, and temperature to a PLC or DCS over RS-232, EIA-485, Modbus, Profibus, or DeviceNet
Design & Selection Considerations
- Frequency display or analog display? Match the sensor output — a turbine sensor or an Ultima array puts out a frequency pulse natively — that pairs with the F6600/F6650. An Activa array or any meter scaled to 4–20 mA / 0–10 V pairs with the F6700/F6750. Use the input form to tell us the sensor or array and its output and we pick the matching display.
- The smallest sensors need the F5140 K-Factor Scaler — Flo-tech flow meters configured with frequency output in the smallest sizes — SAE 8, G1/4, or equivalent — must use the optional F5140 K-Factor Scaler to scale the frequency signal for the display. Use the input form to tell us the sensor size and we add the scaler when the body calls for it.
- Configuration is set at the factory when ordered with a meter — ordered together with a flow meter, the display is configured and programmed at the factory to the meter’s data. A replacement unit is programmed in the field from the front panel, or at the factory when the meter serial number is supplied. PTP programming and commissioning are available as an optional, quoted service — K-factor, scaling, units, comms, and setpoint alarms set to your build.
- Plan the card slots before you order — the analog-output and communication cards are installed at the factory at time of order (and can be added later if bought separately); the setpoint-alarm cards are customer-installed and configured. With all three slots filled, derate the operating temperature to 32–113°F (0–45°C). Use the input form to tell us the retransmit, comms, and alarm you need and we order the right cards.
To configure the right Flo-tech display:
Use the input form to tell us the sensor or array and its output — a turbine frequency pulse or a 4–20 mA / 0–10 V analog signal — the sensor size, the units you read in, and what the display has to drive: a local readout, a retransmit to a PLC or DCS, or setpoint relays. We’ll match the F6600/F6650 or F6700/F6750, set the AC or DC power, add the analog-output, communication, and alarm cards and the F5140 scaler where the body calls for it, and price it — with programming and commissioning available as an optional, quoted service.
Flow Meter Application Sheet ›Talk to an engineer directly — Scott Prater, Principal · 917-580-0878 · scott@pratertechnical.com
Specifications compiled by Prater Technical Partners from Badger Meter Flo-tech hydraulic test & diagnostics product literature.