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PLACES
SERIES 608
INTRINSICALLY SAFE DIFFERENTIAL PRESSURE TRANSMITTER
Ranges Down to 0.1 in w.c., FM Approved, NEMA 4X
CALIBRATION SERVICES AVAILABLE
PRESSURE
[6.35]
4-1/2
[107.95]
2-11/16
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3
5/8
[15.88]
3-1/4
[82.55]
5-1/32
[127.79]
1/2 NPT
TYP 2
PLACES
1-1/2
[38.10]
1/4 NPT
TYP 2
The Dwyer® Series 608 Intrinsically Safe Differential Pressure Transmitter converts
positive, negative (vacuum), or differential pressures of clean, dry air or other nonconductive, non-corrosive gases into a standard 2-wire, 4-20 mA output signal. The
use of an ultra-thin silicon diaphragm enables precision measurement of differential
pressures as low as 0.1 in w.c. while withstanding high static working pressures up to
100 psig (6.89 bar). The Series 608 transmitters are FM approved intrinsically safe for
use in the specied hazardous locations when used with an approved intrinsic safety
barrier. The rugged NEMA 4X (IP65), stainless steel housing makes this transmitter
ideal for use in industrial and process plant environments.
BENEFITS/FEATURES
• High accuracy at low pressure ranges provides exceptional measurement for
ensuring tight-control and minimizing costly out of specication conditions
• Intrinsically safe for use in the specied hazardous locations meets specications
where pressure transmission and safety cannot be compromised
• NEMA 4X rated enclosure provides protection in harsh environments permitting
outdoor monitoring or in areas where dust and particulate matter exists
APPLICATIONS
• Lab fume hood control
• Clean room applications
Liquid & Gas
• Flow measurements and control
• Filter monitoring
• Furnace draft measurement
Differential Pressure Transmitters,
• Process control
MODEL CHART
Model Range (in w.c.)
608-02
608-03
608-04
608-05
608-06
608-07
608-01B
608-13B*
608-04B
*Models have a ±0.25% FS accuracy.
0 to 0.5
0 to 1.0
0 to 2.0
0 to 5.0
0 to 10.0
0 to 25.0
0 to ±0.25
0 to ±1.0
0 to ±2.0
SPECIFICATIONS
Service: Clean/dry air and compatible gases. Clean dry air/gases compatible with
aluminum, titanium, PBT, buna, silicone, glass, gold, silicone RTV and stainless
steel. Not for use with liquids.
Wetted Materials: Consult factory.
Accuracy: ±0.5% or ±0.25% full scale.
Stability: ±0.5% F.S./year.
Pressure Limits: 100 psig (6.89 bar); 15 psid (1.03 bar).
Temperature Limits: -20 to 185°F (-28 to 85°C).
Compensated Temperature Range: 0 to 160°F (-18 to 71°C).
Thermal Effect: 0.5% Accuracy: ±0.02% F.S./°F; 0.25% Accuracy: ±0.01% F.S./°F.
Power Requirements: 12-36 VDC (2-wire).
Output Signal: 4-20 mA DC.
Zero and Span Adustments: Potentiometers for zero and span.
Response Time: 250 ms.
Loop Resistance: DC: 0-1045 Ωs maximum.
Electrical Connections: Screw terminal: Two 1/2˝ female NPT conduit.
Process Connections: Two 1/4˝ female NPT.
Enclosure Rating: NEMA 4X (IP65).
Mounting Orientation: Not position sensitive.
Weight: 2 lb (0.9 kg).
Agency Approvals: FM approved intrinsically safe for use in Class I, Div. 1,
Groups A, B, C, D; Class II, Div. 1, Groups E, F, G; Class III, Div. 1 when wired with
approved intrinsically safe barrier. Entity parameters: Vmax= 36 VDC; Imax= 250
mA; CI=12 nF; LI=0 mH.
OPTIONS
Use order code: Description
NISTCAL-PT1 NIST traceable calibration certicate
Note: New units include data report/calibration report.
NIST can be provided for an additional fee.
ACCESSORIES
Model Description
MTL5541
MTL7706
76
DWYER INSTRUMENTS, LLC | dwyer-inst.com
Intrinsically safe galvanic isolator
Intrinsically safe zener barrier
Static Fitting Options: See page 452 (Static Pressure Tips)
Process Tubing Options: See page 453 (Gage Tubing Accessories)
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