Dwyer Instruments 616W Operating Manual

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Series 616W Differential Pressure Transmitter

[53.98]

15.09]

3-1/8

Specications - Installation and Operating Instructions

Bulletin P-616W

[79.38]

1-3/16 [30.18]

3-3/4 [95.25]

The Series 616W Differential Pressure Transmitter senses the pressure of air and non-combustible, compatible gases and sends a standard 4 to 20 mA or selectable 0 to 5/0 to 10 VDC output signal. All models, including those featuring an LCD, are

factory calibrated to specic ranges. Positive, negative, and differential pressures

can be measured within a full scale accuracy of ±0.25%. This weatherproof unit is

enclosed in a polycarbonate case, rated IP66/NEMA 4X. The span and zero controls

are for use when checking calibration, and are not intended for re-ranging.

Series 616W Transmitter Models & Ranges

MODEL CHART Model Range Max. Pressure Digital Display 616W-2 616W-3 616W-4 616W-5 616W-6 616W-7 616W-2-LCD 616W-3-LCD 616W-4-LCD 616W-5-LCD 616W-6-LCD 616W-7-LCD 616W-6B-LCD 616W-10B-LCD 616W-20B-LCD 616W-2M-LCD 616W-3M-LCD 616W-4M-LCD 616W-5M-LCD

0 to 6 in w.c.

0 to 10 in w.c. 0 to 20 in w.c. 0 to 40 in w.c. 0 to 100 in w.c. 0 to 200 in w.c.

0 to 6 in w.c.

0 to 10 in w.c. 0 to 20 in w.c. 0 to 40 in w.c. 0 to 100 in w.c. 0 to 200 in w.c. 3-0-3 in w.c. 5-0-5 in w.c. 10-0-10 in w.c.

0 to 1.5 kPa 0 to 2.5 kPa 0 to 5 kPa 0 to 10 kPa

Table 1

10 psig 10 psig 20 psig 20 psig 15 psig 45 psig 10 psig 10 psig 20 psig 20 psig 15 psig 45 psig 10 psig 10 psig 10 psig

68.9 kPa

137.8 kPa

– – – – – –

0 to 6.00

0 to 10.00 0 to 20.0 0 to 40.0 0 to 100.0 0 to 200.0

-3.00-0-3.00

-5.00-0-5.00

-10.00-0-10.00 0 to 1.50 0 to 2.50 0 to 5.00 0 to 10.0

Ø3/16 [4.76]

MOUNTING HOLES

1-1/4

[31.75]

4-1/2

[114.30]

5-1/8

[130.18]

1-1/4

[31.75]

SPECIFICATIONS

Service: Air and non-combustible, compatible gases.

Wetted Materials: Consult factory. Accuracy: 0.25% FS @ 77°F (25°C), display accuracy ±0.5%.

Thermal Effect: ±0.02% FS/°F (±0.036% FS/°C).

Stability: ±1% FS/yr.

Temperature Limits: 14 to 185°F (-10 to 85°C). Pressure Limits: See chart.

Power Requirements: 10 to 35 VDC (2-wire), 17 to 36 VDC, or isolated 21.6 to 33

VAC (3-wire).

Output Signal: 4 to 20 mA (2-wire), 0 to 5 VDC, or 0 to 10 VDC (3-wire) Zero and Span Adjustments: Push buttons. Loop Resistance: Current Output: 0 to 1250 Ω (max); Voltage Output: Load

resistance 1 kΩ (min).

Current Consumption: 40 mA max. Electrical Connections: 3-wire removable European style terminal block for 16 to

26 AWG. Process Connections: Barbed, dual size to t 1/8” and 3/16” (3.12 and 4.76 mm) I.D. rubber or vinyl tubing.

Enclosure Rating: NEMA 4X (IP66). Mounting Orientation: Any orientation. Weight: Without LCD: 8.8 oz (249 g); With LCD: 9.6 oz (272 g). Agency Approvals: CE.

2-1/8

TYP 4 PLACES

1-5/16 [33.32] TYP

7/16 OR 5/8 [11.13 OR 15.88] TYP

1/8 AND 3/16 [3.18 AND 4.76] I.D. TUBING

3/4 [19.05] TYP

3-1/8

[79.38]

4-17/32 [1

DWYER INSTRUMENTS, INC.

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.

Phone: 219/879-8000

Fax: 219/872-9057

www.dwyer-inst.com

e-mail: info@dwyermail.com

INSTALLATION

1. Location: Select a clean, dry mounting location free from excess vibration where

the temperature will remain between 14 to 185°F (-10 to 85°C). Distance from the

receiver is limited only by total loop resistance. See Electrical Connections below.

The tubing supplying pressure to the instrument can be practically any length required, but long lengths will increase response time slightly.

2. Position: A vertical position, with the pressure connection pointing down, is

recommended. That is the position in which all standard models are spanned and

zeroed at the factory. They can be used at other angles, but nal spanning and zeroing must be done while the transmitter is in that alternate position.

3. Pressure Connections: Two integral barbed tubing connections are provided. They are dual-sized to t both 1/8” and 3/16” (3.12 and 4.76 mm) I.D. tubing. Be sure the pressure rating of the tubing exceeds that of the operating range. On ranges over 20 psi, we recommend use of a suitable hose clamp to assure the

integrity of the connection.

ELECTRICAL CONNECTIONS

2-Wire 4 to 20 mA Current Operation

CAUTION

Do not exceed specied supply voltage ratings. Permanent damage not covered by warranty will result. Simultaneous

outputs are not designed for AC voltage operation.

The connections to the transmitter are made through terminals 2 and 3 on the terminal

block as shown in Figure 2. The terminal block is removable and each of the terminals are labeled underneath the terminal block on the circuit board. Polarity is indicated by

terminals 2 (+IOUT) and 3 (–IOUT). The AC/DC selection jumper should be set for DC operation.

CAUTION

Do not exceed specied supply voltage ratings. Permanent damage not covered by warranty will result. This unit is not

designed for 120 or 240 VAC line operation.

Electrical connections are made to the terminal block located on the inside of the

transmitter. Determine which of the following circuit drawings best applies to your application and wire accordingly.

Electrical Connection

The Series 616W simultaneously transmits a 2-wire 4 to 20 mA current output and a 3-wire 0 to 5 V / 0 to 10 V voltage output via a removable European-style three

conductor terminal block. The transmitter can be wired in one of the following three

ways to utilize the current and/or voltage output.

Power Supply

Refer to Table 2 for the required supply rating.

MODEL CHART Output Type Power Supply Rating

2-wire current 3-wire current

Simultaneous current and voltage

10 to 35 VDC (40 mA min)

17 to 36 VDC or 21.6 to 33 VAC (40 mA min)

17 to 35 VDC (40 mA min)

Table 2

Choose a power supply with a voltage and current rating sufcient to meet the power specications under all operating conditions. If the supply is unregulated, make sure that the output voltage remains within the required voltage range under all power line conditions. Ripple on the supply should not exceed 100 mV.

AC/DC Jumper Selection

NOTICE

The jumper is factory set to AC. If DC power is applied while

the jumper is set to AC, no damage will occur. However, the

accuracy of the unit may be temporarily affected.

Figure 2: Current Output Wiring

The range of appropriate receiver load resistances (RL) for power supply voltage available is given by the formula listed below. Shielded 2-wire cable is recommended for control loop wiring. Ground the shield at the power supply end.

NOTICE

The receiver may be connected to either the negative or positive side of the loop, whichever is most convenient. Should the

polarity of the transmitter or receiver be inadvertently reversed, the loop will not

function properly, but no damage will be done to the transmitter.

PS - 10.0

L =

20 mA DC

The maximum length of connecting wire between the transmitter and the receiver is a function of wire size and receiver resistance. That portion of the total current loop resistance represented by the resistance of the connecting wires themselves should not exceed 10% of the receiver resistance. For extremely long runs (over 1,000 ft/305 m), it is desirable to select receivers with lower resistances in order to keep the size and cost of the connecting leads as low as possible. In installations where the connecting run is no more than 100 ft (30.5 m), connecting lead wire as small as No.

22 ga. can be used.

CAUTION

Powering the unit with AC power while the jumper is set to DC

may permanently damage the transmitter.

Refer to Figure 1 for the location of the AC/DC jumper. Place the shorting jumper

across either the two pins marked AC or the two pins marked DC.

Figure 1: AC/DC Jumper

3-Wire 0 to 10 V and 0 to 5 V Voltage Operation

CAUTION

Do not exceed specied supply voltage ratings. Permanent damage not covered by warranty will result.

The connections to the transmitter are made to Terminals 1, 2, and 3 on the terminal

block as shown in Figure 3. The terminal block is removable and each of the terminals are labeled underneath the terminal block on the circuit board. Polarity is indicated by 1, 2, and 3. When connecting using a DC power source, make sure the AC/DC selection jumper is set for DC. If the polarity of the transmitter is inadvertently reversed, the unit will not function properly, but no damage will be done to the transmitter. When

connecting to an AC power source, make sure the AC/DC selection jumper is set for

AC. Either lead of the supply power may be connected to terminals 1 and 2 without

affecting the operation of the transmitter or causing damage to the transmitter.

Figure 3: Voltage Output Wiring

The minimum receiver load is 1 kΩ. The resistance due to the wire should be low compared to the receiver load resistance. While the voltage at the terminal block remains unchanged with a 10 mA current ow, resistive losses in the wiring do cause errors in the voltage delivered to the receiver. For a 1% accuracy gauge, the resistance of the wires should be less than 0.1% of the value of the receiver load resistance. This will keep the error caused by the current ow below 0.1%.

Simultaneous Current and Voltage Operation

CAUTION

Do not exceed specied supply voltage ratings. Permanent damage not covered by warranty will result. Simultaneous

outputs are not designed for AC voltage operation.

The connections to the transmitter are made to Terminals 1, 2, and 3 on the terminal

block as shown in Figure 4. The terminal block is removable and each of the terminals are labeled underneath the terminal block on the circuit board. Polarity is indicated by

terminals 1, 2, and 3. The AC/DC selection jumper should be set for DC operation.

The voltage output and the power supply must have separate wire leads that are only joined at terminal 2 of the transmitter. Additional error may occur for the voltage output if a single wire is used or if the wires are joined at the power supply or receiver.

For the current output, the maximum allowable loop resistance (wiring + receiver resistance) is dependent on the power supply. The maximum loop voltage drop must not reduce the transmitter voltage below 17 V. The maximum loop resistance can be

calculated using the following equation:

MAX =

PS - 17.0

V 20 mA DC

(where VPS is the power supply voltage)

The equation uses 17.0 instead of 10.0 used in the current only equation. This

represents the minimum voltage supply which is higher on the simultaneous output conguration due to the requirements of the voltage outputs.

Shielded 4-wire cable is recommended for control loop wiring. Ground the shield at the power supply end only. Should the polarity of the transmitter or receiver be inadvertently reversed, the unit will not function properly, but no damage will be done

to the transmitter.

For voltage outputs, the minimum receiver load is 1 kΩ. The resistance due to the wire should be low compared to the receiver load resistance. While the voltage at the terminal block remains unchanged with a 10 mA current ow, resistive losses in the wiring do cause errors in the voltage delivered to the receiver. For a 1% accuracy gauge, the resistance of the wires should be less than 0.1% of the value of the receiver load resistance. This will keep the error caused by the current ow below 0.1%.

CALIBRATION

NOTICE

There is a 5 second delay from the time the zero or span

calibration button is released until the time that the change in

the calibration takes place. This delay is used to prevent stress related offsets on

the lower range.

Zero Calibration

The zero calibration can be set by applying zero pressure to both the pressure ports and pressing the zero button for 3 seconds. If either the remote or local LCD is present, the display will read ZEro and then sequence back to the home display.

Span Calibration

The span calibration can be adjusted only after setting the zero adjustment. It must be completed within 5 minutes of the last zero calibration. The span calibration button will be ignored until the zero calibration is completed. Apply pressure to the ports of the transmitter that are associated with the maximum output of the transmitter (20 mA, 5 V, or 10 V, depending on the output being used). Press and hold the span button for 3 seconds. If either the remote or local LCD are present, the display will read SPAn and

then sequence back to the home display. If the span calibration is attempted before

adjusting the zero calibration, the FAiL error message will ash on the display. On bi-directional models, separate spans can be performed on the positive and negative

sides of the range.

ZERO DEADBAND

Figure 4: Simultaneous Current and Voltage Output Wiring

Figure 5

MAINTENANCE/REPAIR

Upon nal installation of the Series 616W Differential Pressure Transmitter, no routine maintenance is required. The Series 616W is not eld serviceable and is not possible to repair the unit. Field repair should not be attempted and may void warranty.

This symbol indicates waste electrical products should not be disposed

of with household waste. Please recycle where facilities exist. Check with your Local Authority or retailer for recycling advice.

WARRANTY/RETURN

Refer to “Terms and Conditions of Sale” in our catalog and on our website. Contact customer service to receive a Return Goods Authorization number before shipping the

product back for repair. Be sure to include a brief description of the problem plus any additional application notes.

NOTES

__________________________________________________________________________________________________________________________________________

DWYER INSTRUMENTS, INC.

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.

Phone: 219/879-8000

Fax: 219/872-9057

www.dwyer-inst.com

e-mail: info@dwyermail.com

Dwyer Instruments 616W Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual