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Test & Measurement
Instruments
PD8-6262 ProtEX- MAX Explosion-Proof Dual Analog Input Flow
The ProtEX-MAX™ PD8-6262 offers all the functionality of the ProVu PD6262 as a fully FM, CSA, ATEX, and IECEx approved explosion-proof product. It is specifically designed to display flow rate and total from two (2) analog output (4-20 mA, 0-5 V, 1-5 V, etc.) flowmeters. It displays these signals on a dual-line, 6-digit Sunbright sunlight readable display. The two display lines can be used to show both flow rates simultaneously, to alternate between the two inputs showing both the flow rate and total of each, or to show the result of math functions performed on the flow rates and totals. The total overflow feature allows up to 9-digit totals and grand totals to be displayed. The PD8-6262 includes a 24 VDC power supply to drive the flowmeter and can be equipped with up to four internal relays and a 4-20 mA analog output. It can be programmed and operated without opening the housing by using the built-in SafeTouch® through-glass buttons or the RS485 serial communication port with free Modbus® protocol.
Quick Overview
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Features
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Specifications & Spare Parts
General
| Display | Upper display: 0.60″ (15 mm) high. Lower display: 0.46″ (12 mm) high. 6 digits each (-99999 to 999999), red LEDs 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 show various channels and functions as detailed in the original text. |
| Programming Methods | Four through-glass SafeTouch buttons, four mechanical buttons behind glass, digital inputs, PC and MeterView Pro software, or Modbus registers. |
| 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 |
| Max/Min Display | Max/min 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. |
| Noise Filter | Programmable from 2 to 199 (0 will disable filter) |
| Filter Bypass | Programmable from 0.1 to 99.9% of calibrated span |
| Non-Volatile Memory | All programmed settings are stored in non-volatile memory for a minimum of ten years if power is lost. |
| Recalibration | All ranges are calibrated at the factory. Recalibration is recommended at least every 12 months. |
| Power Options | 85-265 VAC 50/60 Hz, 90-265 VDC, 20 W max, or optional model with 12-24 VDC ±10%, 15 W max. |
| Fuse | Required external fuse: UL Recognized, 5 A max, slow blow; up to 6 meters may share one 5 A fuse. |
| Isolated Transmitter Power Supply | Terminals P+ & P-: 24 VDC ± 10%. Isolated from the input at >500 V. Jumper selectable for 24, 10, or 5 VDC supply (internal jumper J4). All models transmitter supply rated @ 25mA max. |
| 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 | Explosion-proof die cast aluminum with glass window, corrosion resistant epoxy coating, color: blue. NEMA 4X, 7, & 9, IP68. |
| Mounting | Four slotted flanges for wall mounting or NPS 1½” to 2½” or DN 40 to 65 mm pipe mounting. |
| Dimensions | 6.42″ x 7.97″ x 8.47″ (W x H x D) (163 mm x 202 mm x 215 mm) |
| Weight | 16.0 lbs (7.26 kg) |
| 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. |
Dual Input Functionality
| Analog Inputs | Two inputs, each separately field selectable: 0-20, 4-20 mA, ±10 V (0-5, 1-5, 0-10 V), Modbus PV (Slave) | ||||||||
| Programmable Constants | Constant P (Adder): -99.999 to 999.999, default: 0.000, Constant F (Factor): 0.001 to 999.999, default: 1.000 | ||||||||
| Sequence of Operations for Input Programming |
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| 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 07°C ambient | ||||||||
| Signal Input Conditioning | Linear, square root, programmable exponent. | ||||||||
| Multi-Point Linearization | 2 to 32 points for channel A and B | ||||||||
| 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 |
An Error message will appear if input 1 and input 2 signals are too close together. |
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| Input Impedance | Voltage ranges: greater than 500 K Ω. 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. | ||||||||
| 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 |
Dual Rate/Totalizer
| Rate Display Indication | 0 to 999999, lead zero blanking. |
| Total Display & Total Overflow | 0 to 999,999; automatic lead zero blanking. Up to 999,999,999 with total-overflow feature. “oF” is displayed to the left of total overflow. |
| 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. Channel A and B decimal points programmed independently. |
| Dual Totalizer | Calculates total for channels A and B 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. Channel A and B totalizer parameters programmed independently. |
| Totalizer Rollover | Totalizer rolls over when display exceeds 999,999,999. Relay status reflects the display value. |
| Total Overflow Override | Program total A or B total reset for automatic with 0.1 second delay and set point 1 for 999,999 |
| Totalizer Alarm Presets | Up to eight, user selectable under setup menu. Any set point can be assigned to channel A or B total or grand total (or C) and may be programmed anywhere in the range of the meter for total alarm indication. |
| Total & Grand 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. Channel A and B total and grand total reset parameters programmed independently. |
| Total Reset Password | Total and grand total passwords may be entered to prevent resetting the total or grand total from the front panel. |
| Non-Resettable Total | The grand totals can be programmed as non-resettable totals by entering the password “050873”. Both channels are set to non-resettable when this password is entered. Caution: Once the Grand Total has been programmed as “non-resettable” the feature cannot be disabled. |
| Programmable Delay on Release | 0.1 and 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. |
Relays
| 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 channel A or B rate, total, or grand total; channel C; or Modbus control. |
| 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 |
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 | Input channels A or B, rate, total, or grand total; channel C; max or min for channel A or B; highest or lowest max or min of A and B; set points 1-8; Modbus input; or manual control mode. | |||||||||
| 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 | |||||||||
| 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 models @ 25 mA max. | |||||||||
| External Loop Power Supply | 35 VDC maximum | |||||||||
| Output Loop Resistance |
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Serial Communications
| 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 |
| 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 seconds |
| Turn Around Delay | Less than 2 ms (fixed) |
| Note: Refer to the ProVu Modbus Register Tables for details | |
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 |
| Digital Input Logic: Low | 0 to 1.25 VDC |
| Digital Output Logic: High | 3.1 to 3.3 VDC |
| Digital Output Logic: Low | 0 to 0.4 VDC |
| 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. |
Dual Analog Output Expansion Module
| Outputs | Two passive 4-20 mA analog outputs |
| Scaling Range | 3.000 to 23.000 mA for any display range |
Product Ratings and Approvals
| FM Enclosure | Type 4X; IP66 Class I, Division 1, Groups B, C, D Class II, Division 1, Groups E, F, G Class III, Division 1, T5/T6 Class I, Zone 1, AEx d, IIC Gb T5/T6 Zone 21, AEx tb IIIC T90°C; Ta -40°C to +65°C T6 Ta = -40°C to +60°C; T5 Ta = -40°C to +65°C Certificate Number: 3047283 |
| CSA | Class I, Division 1, Groups B, C, D Class II, Division 1, Groups E, F, G Class III, Division 1 Class I Zone 1 Ex d IIC Zone 21 Ex tb IIIC T90°C -40°C < Tamb. < +60° C; Temperature Code T6 -40°C < Tamb. < +65° C; Temperature Code T5 Enclosure Type 4X & IP66 Certificate Number: 2531731 |
| ATEX | II 2 G D Ex d IIC T* Gb Ex tb IIIC T90°C Db IP68 Ta = -40°C to +*°C *T6 = -40°C to +60°C *T5 = -40°C to +65°C Certificate number: Sira 12ATEX1182 |
| IECEx | Ex d IIC T* Gb Ex tb IIIC T90°C Db IP68 Ta = -40°C to +*°C *T6 = -40°C to +60°C *T5 = -40°C to +65°C Certificate Number: IECEx SIR 12.0073 |
