Dwyer Instruments 616W Series User manual

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: [phone] www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: [phone] 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.
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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
2 psig
2 psig
5 psig
5 psig
11 psig
11 psig
29 psig
29 psig
29 psig
58 psig
58 psig
150 psig
150 psig
2 psig
5 psig
5 psig
11 psi
13.8 kPa
13.8 kPa
34.5 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
2 psig
2 psig
5 psig
5 psig
11 psig
11 psig
29 psig
29 psig
29 psig
58 psig
58 psig
150 psig
150 psig
2 psig
5 psig
5 psig
11 psig
13.8 kPa
13.8 kPa
34.5 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
1
2
3
4JUMPER
WIRE RECEIVER
mA POWER
SUPPLY
10-35 VDC
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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
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©Copyright 2010 Dwyer Instruments, Inc. Printed in U.S.A. 6/10 FR# 01-440886-01 Rev. 4
DWYER INSTRUMENTS, INC. Phone: [phone] www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: [phone] e-mail: [email protected]
E-43-W:E-43-W(616) 6/2/10 9:17 AM Page 4
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