Dwyer Instruments 636 Specifications

1-1/4 [31.75] HEX

#22 AWG LEADS 24 [609.60]

®

SERIES 636

FIXED RANGE PRESSURE TRANSMITTER

Stainless Steel, Explosion-Proof, Accuracy ±0.30%, 4 to 20 mA or 1 to 5 VDC Signal

3/4 NPT

Ø1-25/32

[45.24]

LEADS PLUS SHIELD/DRAIN

1-1/8

[28.58]

4-1/16

[103.19]

PRESSURE

The SERIES 636 Pressure Transmitter is a low cost, xed range, stainless steel
transmitter with ±0.30% accuracy. It is designed to continuously measure pressure
for years in even the toughest environmental and media conditions. Transmitters are
explosion-proof, (FM approved) and meet NACE standards for off-shore applications.

FEATURES/BENEFITS

• Long service life and lower cost to maintain reduces total cost of ownership

• Explosion-proof housing for use in applications where protection of process and
personnel is needed

APPLICATIONS

• Off-shore

• Process applications

MODEL CHART
4 to 20 mA

OUT
636-0

636-1
636-2
636-3

OPTIONS
Use order code: Description
NISTCAL-PT1 NIST traceable calibration certicate

1 to 5 VDC
OUT

636-0-LP
636-1-LP
636-2-LP
636-3-LP

Operating
Range, PSI

0 to 15
0 to 30
0 to 100
0 to 300

Operating
Range, Bar

0 to 1
0 to 2
0 to 7
0 to 20

1 [25.40] HEX

1/2 NPT

SPECIFICATIONS
Service: Liquid, gas or vapor.

Wetted Materials: 316 L SS.
Fill Fluid: DC 200 silicone (standard).
Accuracy: ±0.30% of calibrated span.
Stability: ±0.5% of upper range limit for six months.
Temperature Limits: Electronics (ambient): -40 to 140°F (-40 to 60°C);

Process interface: -40 to 212°F (-40 to 100°C).

Pressure Limits: 300% upper range limit.
Compensated Temperature Range:

-20 to 180°F (-29 to 82°C).
Thermal Effect: (includes zero and span). Between -20 and 180°F (-29 and 82°C).
±2.0% per 50°F (28°C).
Power Requirements: 12 to 30 VDC (636), 8 to 14 VDC (636LP), reverse polarity
protection.

Output Signal: 4 to 20 mA DC, limited to 30 mA DC (636), 1 to 5 VDC (636LP).
Zero & Span Adjustments: Null: 4.0 mA ±2% span (636),1 VDC ±1% span

(636LP); Span: 16.0 mA ±1% span (636), 4 VDC ±1% span (636LP).

Loop Resistance: 900 Ω max @ 30 V.
Electrical Connection: 3/4˝ female NPT 24˝ (61 cm), 22 AWG.
Process Connection: 1/2˝ female NPT.
Enclosure Rating: NEMA 4 (IP56).
Weight: 0.83 Ib (374 g).
Agency Approvals: CSA, FM.

FM and CSA approved explosion-proof for Class I, Division 1, Groups B, C, & D,
Class II Groups E, F, & G Class III.

1-1/4

[31.75]

Single Pressure Transmitters