Flow MetersFlow Meters is a device used to measure fluid flow through a pipe, in which Flow Rate can be Volumetric or Mass. Volumetric Flow Rates are resent by units of liter/minute, liter/hour, m3/minute, m3/hour, etc. Mass Flow Rate represents kg/minute, kg/hour, ton/minute, ton/hour, etc. Choosing the right Flow Meters is always a Challenge. Let Celectric help you. Contact Us now.
Program the Meter from a PC with Onboard USB and MeterView® Pro
Isolated 24 VDC @ 200 mA Transmitter Power Supply
Displays Rate and Total Simultaneously
Count Up or Down, Total & Grand Total
Open Chanel Flow with Programmable Exponent
Non-Resettable Grand Total
Current Input Protected by Resettable Fuse
On-Board Digital Input (for Remote Reset)
What sets the Precision Digital PD-6200 Helios apart from other Large Display Meters is its dual line display with super bright LEDs that can be read even in bright sunlight and up to 100 feet away. Based on Precision Digital’s popular line of ProVu® digital panel meters, the Helios can satisfy a wide variety of level, flow, temperature, pressure, & weight applications. It is available with models that accept 4-20 mA, thermocouple, RTD, pulse, strain gauge, AC and DC volts and current, and even Modbus®.
Go with the Helios PD2-6200 when you want to display both flow rate and total simultaneously from a 4-20 mA output flowmeter. The PD2-6200 can display both flow rate and total in six full digits and can also be configured to display a non-resettable grand total. The PD2-6200 can even display open channel flow using its programmable exponent function. The PD2-6200’s NEMA 4X, IP65 rated field mountable enclosure, super-bright LEDs, and wide operating temperature range make it perfect for outdoor applications.
Display: Two lines with 1.8″ (46 mm) high digits, red LEDs; 6 digits per line (-99999 to 999999), with lead zero blanking Display Intensity: Eight user selectable intensity levels Display Update Rate: 5/second (200 ms) Overrange: Display flashes 999999 Underrange: Display flashes -99999 Display Assignment: The upper and lower displays may be assigned to rate, total, grand total, alternate (rate/total, rate/grand total, rate/units, total/units, and grand total/units), max/min, units (lower display only), set points, or Modbus input. Additional displays are available if parameter total is off, abd parameter d-SCAL is on: gross, alternating gross/net, PV1, PV2, and PCT (refer to PD6000 instruction manual). Programming Methods: Four SafeTouch through-glass buttons when cover is installed. Four internal pushbuttons when cover is removed. F4 Digital Input Contacts: 3.3 VDC on contact. Connect normally open contacts across F4 to COM. F4 Digital Input Logic Levels: Logic High: 3 to 5 VDC; Logic Low: 0 to 1.25 VDC Noise Filter: Programmable from 2 to 199 (0 will disable filter) Filter Bypass: Programmable from 0.1 to 99.9% of calibrated span Recalibration: All ranges are calibrated at the factory. Recalibration is recommended at least every 12 months. Max/Min Display: Max (Peak) / min (Valley) readings reached by the process are stored until reset by the user or until power to the meter is cycled. Password: Three programmable passwords restrict modification of programmed settings and two prevent resetting the totals. Non-Volatile Memory: All programmed settings are stored in non-volatile memory for a minimum of ten years if power is lost. Power Options: 85-265 VAC 50/60 Hz, 90-265 VDC, 20 W max or 12-24 VDC ± 10%, 15 W max. Powered over USB for configuration only. Isolated Transmitter Power Supply: Terminals P+ & P-: 24 VDC ± 10%. 12-24 VDC powered skus selectable for 24, 10, or 5 VDC supply (internal P+/P- switch). 85-265 VAC skus rated @ 200 mA max, 12-24 VDC powered skus rated @ 100 mA max, @ 50 mA max for 5 or 10 VDC supply. Fuse: Required external fuse: UL Recognized, 5 A max, slow blow; up to 6 meters may share one 5 A fuse. Normal Rejection Mode: Greater than 60 dB at 50/60 Hz Isolation: 4 kV input/output-to-power line. 500 V input-to-output or output-to-P+ supply. Overvoltage Category: Installation Overvoltage Category II: Local level with smaller transient overvoltages than Installation Overvoltage Category III. Environmental: T6 Class operating temperature range Ta = -40 to 60°C T5 Class operating temperature range Ta = -40 to 65°C Max Power Dissipation: Maximum power dissipation limited to 15.1 W. Connections: Removable screw terminal blocks accept 12 to 22 AWG wire, RJ45 for external relays, digital I/O, and serial communication adapters. Enclosure: UL Type 4X, IP65 rated. Polycarbonate & glass blended plastic case, color: gray. Includes four PG11 through-hole conduit openings, with two factory installed PG11, IP68, black nylon threaded hole plugs with backing nuts. Wall Mounting: Four (4) mounting holes provided for mounting meter to wall. Pipe Mounting: Optional pipe mounting kit (PDA6260) allows for pipe mounting. Sold separately. See PD2-6200 manual for instructions. Dimensions: 10.63″ x 12.59″ x 4.77″ (270 mm x 319.7 mm x 121.2 mm) (H x W x D) Weight: 6.10 lbs (2.76 kg) UL File Number: UL & C-UL Listed. E160849; 508 Industrial Control Equipment. Warranty: 3 years parts & labor USB Connection: Compatibility: USB 2.0 Standard, Compliant Connector Type: Micro-B receptacle Cable: USB A Male to Micro-B Cable Driver: Windows 98/SE, ME, 2000, Server 2003/2008, XP 32/64-Bit, Vista 32/64-Bit, Windows 7 32/64-Bit, Windows 10 32/64-Bit Power: USB Port
Inputs: Field selectable: 0-20, 4-20 mA, ±10 VDC (0-5, 1-5, 0-10 V), Modbus PV (Slave) Accuracy: ±0.03% of calibrated span ±1 count, square root & programmable exponent accuracy range: 10-100% of calibrated span Temperature Drift: 0.005% of calibrated span/°C max from 0 to 65°C ambient, 0.01% of calibrated span/°C max from -40 to 0°C ambient Math Function: Linear, square root, programmable exponent, or round horizontal tank volume calculation. Multi-Point Linearization: 2 to 32 points Programmable Exponent: 1.0001 to 2.9999 Low-Flow Cutoff: 0-999999 (0 disables cutoff function) Decimal Point: Up to five decimal places or none: d.ddddd, dd.dddd, ddd.ddd, dddd.dd, ddddd.d, or dddddd. Calibration Range:
Minimum Span Input 1 & 2
An Error message will appear if input 1 and input 2 signals are too close together. Input Impedance: Voltage ranges: greater than 1 MΩ. Current ranges: 50 – 100 Ω (depending on resettable fuse impedance). Input Overload: Current input protected by resettable fuse, 30 VDC max. Fuse resets automatically after fault is removed. HART Transparency: Analog input will not interfere with existing HART communications on the wired 4-20 mA signal
Rate Display Indication: 0 to 999999, lead zero blanking. “R” LED illuminates while displaying rate. Total Display & Total Overflow: 0 to 999,999; automatic lead zero blanking. “T” LED is illuminated while displaying total and “GT” for grand total. Up to 999,999,999 with total-overflow feature. “oF” is displayed to the left of total overflow and ▲ LED is illuminated. Total Decimal Point: Up to five decimal places or none: d.ddddd, dd.dddd, ddd.ddd, dddd.dd, ddddd.d, or dddddd. Total decimal point is independent of rate decimal point. Totalizer: Calculates total based on rate and field programmable multiplier to display total in engineering units. Time base must be selected according to the time units in which the rate is displayed. Selectable up/down count. Total Conversion Factor: 0.00001 to 59,999 Totalizer Rollover: Totalizer rolls over when display exceeds 999,999,999. Relay status reflects the display value. Total Overflow Override: Program total reset for automatic with 0.1 second delay and set point 1 for 999,999 Totalizer Presets: Up to eight, user selectable under Setup menu. Any set point can be assigned to total and may be programmed anywhere in the range of the meter for total alarm indication. Programmable Total Reset Delay: 0.1 to 999.9 seconds; applied to the first relay assigned to total or grand total. If the meter is programmed to reset total to zero automatically when the preset is reached, then a delay will occur before the total is reset. Total Reset: Via front panel button, external contact closure on digital inputs, automatically via user selectable preset value and time delay, or through serial communications. Total Reset Password: Total and grand total passwords may be enteredto prevent resetting the total or grand total from the front panel. Non-Resettable Total: The grand total can be programmed as a nonresettable total by entering the password “050873”. Caution: Once the Grand Total has been programmed as “non-resettable” the feature cannot be disabled.
Rating: 2 or 4 SPDT (Form C) internal and/or 4 SPST (Form A) external; rated 3 A @ 30 VDC and 125/250 VAC resistive load; 1/14 HP (≈ 50 W) @125/250 VAC for inductive loads Noise Suppression: Noise suppression is recommended for each relay contact switching inductive loads. Relay Assignment: Relays may be assigned to rate, total, or grand total. Deadband: 0-100% of span, user programmable High or Low Alarm: User may program any alarm for high or low trip point. Unused alarm LEDs and relays may be disabled (turned off). Relay Operation: automatic (non-latching), latching (requires manual acknowledge), sampling (based on time), pump alternation control (2 to 8 relays), off (disable unused relays), and manual on/off control mode. Relay Reset: User selectable via front panel buttons, digital inputs, or PC 1. Automatic reset only (non-latching), when input passes the reset point or total is reset to zero. 2. Automatic + manual reset at any time (non-latching). 3. Manual reset only, at any time (latching). 4. Manual reset only after alarm condition has cleared (latching). Note: Front panel button or digital input may be assigned to acknowledge relays programmed for manual reset. Time Delay: 0 to 999.9 seconds, on & off relay time delays. Programmable and independent for each relay. Fail-Safe Operation: Programmable and independent for each relay. Note: Relay coil is energized in non-alarm condition. In case of power failure, relay will go to alarm state. Auto Initialization: When power is applied to the meter, relays will reflect the state of the input to the meter.
Isolated 4-20 mA Transmitter Output
Output Source: Rate/process, total, grand total, max, min, set points 1-8, manual control setting, or Modbus input Scaling Range: 1.000 to 23.000 mA for any display range Calibration: Factory calibrated: 4.000 to 20.000 = 4-20 mA output Analog Output Programming: 23.000 mA maximum for all parameters: Overrange, underrange, max, min, and break Accuracy: ±0.1% FS ±0.004 mA Temperature Drift: 0.4 µA/°C max from 0 to 65°C ambient, 0.8 µA/°C max from -40 to 0°C ambient Note: Analog output drift is separate from input drift. Isolated Transmitter Power Supply: Terminals I+ & R: 24 VDC ± 10%. Isolated from the input at >500 V. May be used to power the 4-20 mA output or other devices. All skus rated @ 40 mA max. External Loop Power Supply: 35 VDC maximum Output Loop Resistance:
35 VDC (external)
Compatability: EIA-485 Connectors: Removable screw terminal connector Max Distance: 3,937′ (1,200 m) max Status Indication: Separate LEDs for Power (P), Transmit (TX), and Receive (RX) Protocol: Modbus® RTU Meter Address/Slave ID: 1 – 247 Baud Rate: 300 – 19,200 bps Transmit Time Delay: Programmable between 0 and 199 ms or transmitter always on for RS-422 communication Data: 8 bit (1 start bit, 1 or 2 stop bits) Parity: Even, odd, or none with 1 or 2 stop bits Byte-to-Byte Timeout: 0.01 – 2.54 second Turn Around Delay: Less than 2 ms (fixed)
Digital Inputs and Outputs
Channels: 4 digital inputs & 4 digital outputs per module System: One expansion module may be added for a total of 8 inputs & 8 outputs Note: The jumper located between the RJ45 connectors must be removed on the expansion module. Digital Input Logic: High: 3 to 5 VDC; Low: 0 to 1.25 VDC Digital Output Logic: High: 3.1 to 3.3 VDC; Low: 0 to 0.4 VD Source Current: 10 mA maximum output current Sink Current: 1.5 mA minimum input current +5 V Terminal: To be used as pull-up for digital inputs only. Connect normally open pushbuttons across +5 V & DI 1-4. Warning: DO NOT use +5 V terminal (pin 1) to power external devices. Function Assignment: The on-board digital inputs (1-4) are designed to mimic the behavior of the front panel buttons (Menu, F1, F2, & F3). If you wish to change their behavior, re-assign F1-F3 to the desired function, then change the corresponding digital input to match.
4-Relay Expansion Module
Relays: Four Form A (SPST) rated 3 A @ 30 VDC and 125/250 VAC resistive load; 1/14 HP (approx. 50 watts) @ 125/250 VAC for inductive loads.
The meter can be mounted to any wall using the four provided mounting holes. Note that the bottom mounting holes are located underneath the front door panel. To mount the meter to a wall, follow these instructions.
Prepare a section of the wall approximately 11″ x 13″ (280 mm x 330 mm) for meter mounting by marking with a pencil the mounting holes (shown in the image to the right) on the wall.
Using a drill bit slightly smaller than the girth of the mounting screws, pre-drill holes at the mounting locations previously marked.
Insert mounting screws into the four mounting holes and screw them into the pre-drilled holes. Do not overtighten the mounting screws as it is possible that the enclosure could crack and become damaged.
Meter Mounting Holes
The meter can also be mounted to a pipe using the optional pipe mounting kit (PDA6260). This kit includes two mounting plates, two U-bolts, and the necessary nuts and bolts. To mount the meter to a pipe using the pipe mounting kit accessory, follow these instructions.
Secure the mounting plates to the top and bottom (for vertical pipes) or left and right (for horizontal pipes) of the reverse side of the meter enclosure using the provided fasteners. Do not overtighten theasteners as it could cause damage to the enclosure.
Using the provided nuts and U-bolts, secure the mounting plates to the pipe enough torque such that the meter cannot be moved up or down (or side to side).
Horizontal Pipe Mount Assembly
Vertical Pipe Mount Assembly
Differential Pressure Flow
The Helios PD2-6200 can display flow rate and total by extracting the square root from the 4-20 mA signal from a differential pressure transmitter. The user selectable low-flow cutoff feature gives a reading of zero when the flow rate drops below a user selectable value.
Display Flow Rate
User Selectable Low-Flow Cutoff
Only 2 Calibration Points Required
Convert Pulse to 4-20 mA with PD2-6300
The Helios PD2-6300 accepts the pulse output from a flowmeter and with the appropriate option installed can convert the pulse to a 4-20 mA signal. The 4-20 mA signal can be programmed to correspond to either the flow rate or the total flow.
Use K-Factor or Multi-Point Scaling
Helios Powers the Flowmeter
Display Flow Rate & Total
Open Channel Flow
The PD2-6200, in combination with an ultrasonic level transmitter, makes for an economical way to measure and display open channel flow rate and total in most weirs and flumes and take periodic samples. All the user needs to do is enter the exponent for the weir or flume into the PD2-6200 and the PD2-6200 automatically raises the input signal to that power. Sampling can be based on the total flow or the flow rate. For instance, to display open channel flow rate and total from a 3 inch Parshall flume and take a one pint sample every 100,000 gallons, the user would program the PD2-6200 as follows:
Open Channel Flow
3″ Parshall flume
Set Programmable Exponent to 1.547
Millions of Gallons per Day (MGD)
Set 4 mA = 0 & 20 mA = 3.508 Time base = Day
Millions of Gallons
Set Totalizer Conversion Factor = 1 (password protect total reset)
Non-Resettable Grand Total
Program meter so grand total can never be reset
Set non-resettable grand total password
Display Flow Rate and Total at the same time
Set main display for Grand Total and secondary display to toggle between rate and total
Take a 1 pint sample every 100,000 gallons
Set up relay for sampling and to trip every 0.1 million gallons. Set up sampling time such that 1 pint is sampled
Total Relay Sampling Operation
The connectors’ label, affixed to the inside of the lower door panel, shows the location of all connectors available with requested configuration.
MeterView® Pro Software
MeterView® Pro software is designed for use with ProVu, ProtEX-MAX, or Helios Series meters and allows users to remotely program, monitor, and datalog using a PC. Remote programming allows for all available meter settings to be programmed through an easy, user-friendly interface. The data acquisition feature allows the user to gather readings from a meter at user-selected intervals and generate charts using common tools like Microsoft® Excel. A linearization setup function is also included. With this utility, the user can configure up to 32 linearization points and upload them to the meter. All configuration data can be saved to a file for future use. This software is accessible via the onboard USB connection on all Helios large display meters, ProVu panel meters, and ProVu-based ProtEX-MAX explosion-proof meters produced since 6 September 2016 (firmware version 4.0 or higher). In order for meters produced prior to 6 September 2016 (firmware version 3.1 or lower) to establish digital communications with a PC, a serial communications adapter is required. For an RS-232 connection, use a PDA1232 adapter. To determine the software version of a meter:
Go to the Diagnostics menu () and press Enter button.
Press Up arrow button and scroll to Information menu (Info).
Press Enter to access the software number (), version (), and serial number () information. Write down the information as it is displayed. Continue pressing Enter until all the information is displayed.
The meter returns to Run Mode after displaying all the settings.