Dwyer Instruments 616W Series Manual de usuario

The Series 616W Differential Pressure Transmitter senses the

pressure of air and non-combustible, compatible gases and sends a

standard 4-20 mA output signal.

All models, including those featuring LCD digital read-out, are factory

calibrated to specific ranges, as listed in the chart on the next page.

Positive, negative and differential pressures can be measured within a

full span 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. They

are not intended for re-ranging to a significantly different span.

Series 616W Differential Pressure Transmitter

Specifications - Installation and Operating Instructions

Bulletin E-43-W

3-1/8

[79.38]

1-1/4

[31.75]

1-3/16

[30.18]

3-3/4

[95.25]

4-1/2

[114.30]

5-1/8

[130.18]

Ø3/16 [4.76]

MOUNTING HOLES

TYP 4 PLACES

1-5/16

[33.32] TYP

2-1/8

[53.98]

3/4 [19.05] 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 3-1/8

[79.38]

4-17/32

[115.09]

Fig. A

DWYER INSTRUMENTS, INC.

Phone: 219/879-8000 www.dwyer-inst.com

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: 219/872-9057 e-mail: [email protected]

SPECIFICATIONS

Service: Air and non-combustible, compatible gases.

Wetted Materials: Consult factory.

Accuracy: ±0.25% F.S., display accuracy ±0.5%.

Stability: ±1% F.S./yr.

Temperature Limits: 0 to 140°F (-17.8 to 60°C).

Compensated Temperature Limits: 20 to 120°F (-6.67 to 48.9°C).

Pressure Limits: See chart.

Thermal Effect: ±0.02% F.S./°F (0.0012% F.S./°C).

Power Requirements: 10-35 VDC (2-wire).

Output Signal: 4 to 20 mA.

Zero and Span Adjustments: Potentiometers for zero and span.

Loop Resistance: DC; 0-1250 ohms maximum.

Current Consumption: DC; 38 mA maximum.

Electrical Connections: Screw-type terminal block.

Process Connections: Barbed, dual size to fit 1/8˝ and 3/16˝

(3.12 and 4.76 mm) I.D. rubber or vinyl tubing.

Enclosure Rating: NEMA 4X (IP66).

Mounting Orientation: Vertical, consult factory for other position

orientations.

Weight: Without LCD 8.8 oz (249 g); with LCD 9.6 oz (272 g).

Agency Approvals: CE.

E-43-W:E-43-W(616) 6/2/10 9:17 AM Page 1

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INSTALLATION

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

vibration where the temperature will remain between 20 and 120˚F (-6.7

and 49˚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 final spanning and zeroing must be done while transmitter is

in that alternate position.

3. Pressure Connections: Two integral barbed tubing connections are

provided. They are dual-sized to fit both 1/8˝ and 3/16˝ (3.2 and 4.8 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

CAUTION: Do not exceed specified supply voltage ratings.

Permanent damage not covered by warranty will result. This unit is

not designed for 120 or 240 volts AC line operation.

Electrical connections are made to the terminal block located on the

inside of the transmitter. Terminals are marked 1, 2, 3 and 4. See Fig. B.

Determine which of the following circuit drawings applies to your

application and wire accordingly.

Wire Length - The maximum length of wire connecting transmitter and

receiver is a function of wire size and receiver resistance. Wiring should

not contribute more than 10% of the receiver resistance to total loop

resistance. For extremely long runs (over 1000 feet), choose receivers

with higher resistance to minimize size and cost of connecting leads.

Where wiring length is under 100 feet, hook-up wire as small as 22 AWG

can be used.

2-Wire Operation - An external power supply delivering 10-35 VDC with

minimum current capability of 40 mA DC (per transmitter) must be used

to power the control loop. See Fig. C for connection of the power supply,

transmitter and receiver. Note the jumper between terminals 3 and 4.

The range of appropriate receiver load resistance (RL) for the DC power

supply voltage available is expressed by the formula.

RLMax = Vps - 10V

20mA DC

Shielded two wire cable is recommended for control loop wiring. If

grounding is required, use the negative side of the control loop after the

receiver. Otherwise, in 2-wire operation it is not necessary to observe

polarity of control loop connections.

2-Wire Connections

Fig. B

Series 616W Transmitter Models & Ranges

Model

616W-00

616W-0

616W-1

616W-2

616W-3

616W-4

616W-5

616W-6

616W-7

616W-8

616W-9

616W-10

616W-11

616W-12

616W-3B

616W-6B

616W-10B

616W-20B

616W-0M

616W-1M

616W-2M

616W-3M

616W-4M

616W-5M

Pressure

Range

0-1 in.w.c.

0-2 in.w.c.

0-3 in.w.c.

0-6 in.w.c.

0-10 in.w.c.

0-20 in.w.c.

0-40 in.w.c.

0-100 in.w.c.

0-200 in.w.c.

0-10 psid

0-20 psid

0-30 psid

0-50 psid

0-100 psid

1.5-0-1.5 in.w.c.

3-0-3 in.w.c.

5-0-5 in.w.c.

10-0-10 in.w.c.

0-500 Pa

0-750 Pa

0-1.5 kPa

0-2.5 kPa

0-5 kPa

0-25 kPa

Maximum

Pressure

2 psig

5 psig

11 psig

29 psig

58 psig

150 psig

2 psig

5 psig

11 psi

13.8 kPa

34.5 kPa

75.8 kPa

200 kPa

Digital

Display

Model

616W-00-LCD

616W-0-LCD

616W-1-LCD

616W-2-LCD

616W-3-LCD

616W-4-LCD

616W-5-LCD

616W-6-LCD

616W-7-LCD

616W-8-LCD

616W-9-LCD

616W-10-LCD

616W-11-LCD

616W-12-LCD

616W-3B-LCD

616W-6B-LCD

616W-10B-LCD

616W-20B-LCD

616W-0M-LCD

616W-1M-LCD

616W-2M-LCD

616W-3M-LCD

616W-4M-LCD

616W-5M-LCD

Pressure

Range

0-1 in.w.c.

0-2 in.w.c.

0-3 in.w.c.

0-6 in.w.c.

0-10 in.w.c.

0-20 in.w.c.

0-40 in.w.c.

0-100 in.w.c.

0-200 in.w.c.

0-10 psid

0-20 psid

0-30 psid

0-50 psid

0-100 psid

1.5-0-1.5 in.w.c.

3-0-3 in.w.c.

5-0-5 in.w.c.

10-0-10 in.w.c.

0-500 Pa

0-750 Pa

0-1.5 kPa

0-2.5 kPa

0-5 kPa

0-25 kPa

Maximum

Pressure

2 psig

5 psig

11 psig

29 psig

58 psig

150 psig

2 psig

5 psig

11 psig

13.8 kPa

34.5 kPa

75.8 kPa

200 kPa

Digital

Display

0-1.00

0-2.00

0-3.00

0-6.00

0-10.00

0-20.0

0-40.0

0-100.0

0-200

0-10.0

0-20.0

0-30.0

0-50.0

0-100.0

-1.50-0-1.50

-3.00-0-3.00

-5.00-0-5.00

-10.00-0-10.00

0-500

0-750

0-1.50

1-2.50

0-5.00

0-25.0

Fig. C

616W

PRESSURE

TRANSMITTER

4JUMPER

WIRE RECEIVER

mA POWER

SUPPLY

10-35 VDC

E-43-W:E-43-W(616) 6/2/10 9:17 AM Page 2

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Calibration Check - Each Series 616W Transmitter is factory calibrated

to the range given in the model chart. To check calibration and adjust if

necessary, the following procedure should be used. For purposes of

clarification in these instructions, range is defined as that pressure which,

applied to the transmitter, produces 20 milliamps of current in the loop.

Zero pressure is always assumed to be 4 milliamps.

1. With the transmitter connected to the companion receiver, insert an

accurate milliameter in series with the current loop. Full scale range

should be approximately 30 mA.

2. Connect a controllable pressure source to one leg of a tee with the

other two legs connected to the high pressure port of the transmitter and

the third leg to an accurate test gage or manometer, in an appropriate

range. The low pressure port should be vented to atmosphere.

Calibration must be performed with the unit in the same position in which

it will be mounted.

3. Apply electrical power to the unit and allow it to stabilize for 10

minutes.

4. With no pressure applied to the transmitter, adjust ZERO control so

that loop current is 4 mA. See Fig. K.

5. Apply full range pressure and adjust loop current to 20 mA using SPAN

control.

6. Relieve pressure and allow transmitter to stabilize for 2 minutes.

7. Zero and span controls are slightly interactive, so repeat steps 4

through 6 until zero and full range pressures consistently produce

currents of 4 and 20 mA respectively.

8. Remove the milliameter from the current loop and proceed with final

installation of the transmitter and receiver.

MULTIPLE RECEIVER INSTALLATION

An advantage of the standard 4-20 mA DC output signal produced by the

Series 616W Transmitter is that any number of receivers can be

connected in series in the current loop. Thus, an A-701 Digital Readout,

an analog panel meter, a chart recorder, process controlling equipment

or any combination of these devices can be operated simultaneously.

The only requirement is that each component be equipped for a standard

4-20 mA input and the proper polarity of the input connections be

observed when inserting the device in the current loop. If any of the units

display a negative or downscale reading, the signal input leads are

reversed.

MAINTENANCE

Upon final installation of the Series 616W Differential Pressure

Transmitter, no routine maintenance is required. A periodic check of the

system calibration is recommended following the procedures explained

under Calibration Check. The Series 616W Transmitter is not field

serviceable and should be returned, freight prepaid, to the factory if

repair is required. Please enclose a description of the problems

encountered plus any available application information. Contact

customer service to receive a return goods authorization number before

shipping.

SPAN

ADJUST ZERO

ADJUST

Fig. K

E-43-W:E-43-W(616) 6/2/10 9:17 AM Page 3

www. .com information@itm.com1.800.561.8187

DWYER INSTRUMENTS, INC.

Phone: 219/879-8000 www.dwyer-inst.com

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: 219/872-9057 e-mail: [email protected]

E-43-W:E-43-W(616) 6/2/10 9:17 AM Page 4

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