Dwyer Instruments 616WL Specifications
3-1/8
2-21/32 [67.47]
[94.06]
3/16 [4.76]
2
]
3-1/8
Ø3/16 [4.76]
[53.98]
4-17/32
15.09]
SERIES 616WL
E
E
Differential Pressure Transmitters
DIFFERENTIAL PRESSURE TRANSMITTER
Low Ranges Down to 0.25 in w.c. (60 Pa), NEMA 4X Housing (IP66)
E
O
D
I
V
O
N
L
I
N
The SERIES 616WL Differential Pressure Transmitter senses very low pressures of
air and non-combustible, compatible gases and sends a standard 4-20 mA output
signal. All models, including those featuring the 3 digit LCD digital read-out, are factory
calibrated to specic ranges as listed in the chart below.
Positive, negative and differential pressures can be measured within a full span
accuracy of ±0.50%. This weatherproof unit is enclosed in a polycarbonate case,
designed to meet (IP66/NEMA 4X). Internal digital push button zero and span allow for
quick and simple eld calibration.
FEATURES/BENEFITS
• NEMA 4X rated enclosure provides protection in harsh environments permitting
outdoor monitoring or in areas where dust and particulate matter exists
• Easy to read LCD display provides immediate local alerts allowing corrective action
to be taken quicker to eliminate the problem from becoming widespread
• Zero and span controls provides easy calibration checks and shorter installation
time to get device running and monitoring
• High precision accuracy at low pressure ranges provides exceptional accuracy for
insuring tight-control and minimizing costly out of specication conditions
APPLICATIONS
• Low pressure applications • Outdoor HVAC
• Dust collection • Roof-top equipment
OPTIONS
To order add sufx: Description
-NIST NIST traceable calibration certicate
Example: 616WL-4-LCD-NIST
DWYER INSTRUMENTS, INC. | www.dwyer-inst.com64
63/61 [25.00]
SPECIFICATIONS
Service: Air and non-combustible,
compatible gases.
Wetted Materials: Consult factory.
Accuracy: ±0.50% FS, display accuracy
±0.5%.
Stability: ±1% FS/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% FS/°F (0.036%
FS/°C).
Power Requirements: 12 to 30 VDC
(2-wire).
Output Signal: 4 to 20 mA.
MODEL CHART
Model Range Max. Pressure
616WL-2-LCD
616WL-4-LCD
616WL-12-LCD
616WL-14-LCD
616WL-22-LCD
616WL-32-LCD
616WL-25-LCD
616WL-35-LCD
[79.38]
47/64
[18.65]
3-45/64
4-17/32
[115.09]
5-1/8
[130.18]
FITTING TO ACCOMODATE
CABLE DIAMETERS
OF .100 - .260
1/8 AND 3/16
[3.18 AND 4.76] I.D. TUBING
0 to 0.25 in w.c.
0 to 1 in w.c.
0 to ±0.25 in w.c.
0 to ±1 in w.c.
0 to 60 Pa
0 to ±60 Pa
0 to 250 Pa
0 to ±250 Pa
Process Tubing Options: See page 499 (Gage Tubing Accessories)
MOUNTING HOLES TYP 4 PLCS
Zero and Span Adjustments: Digital,
push button adj.
Loop Resistance: DC; 0 to 900 Ω max.
Current Consumption: DC; 38 mA
max.
Electrical Connections: Screw-type
terminal block.
Process Connections: Barbed, dual
size to t 1/8˝ and 3/16˝ (3.12 and 4.76
mm) ID rubber or vinyl tubing.
Enclosure Rating: NEMA 4X (IP66).
Mounting Orientation: Vertical, consult
factory for other position orientations.
Weight: Without LCD 17 oz (482 g);
with LCD 18 oz (510 g).
Agency Approvals: CE.
2 psig
4 psig
2 psig
4 psig
2 psig
2 psig
4 psig
4 psig
2-37/64
[65.48]
49/64
[19.45]
1-1/8
[28.58]
3-1/8
[79.38]
4-17/3
[115.09
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