Specifications | 8631 Venturi
SPECIFICATIONS continued
Optional Pressure Transmitter* • Range:
-3 to +3"w.c.
• Span:
0-3"w.c.
• Accuracy as spanned (with transmitter zeroed after installation): • Ambient temperature effect as spanned:
± 0.003"w.c.
±0.009"w.c./50°F
• Total error w/0F temp. change: • Total error w/50F temp. change:
.1% at 3"w.c. dp; 2.5% at .12"w.c. dp; 10% at .03" dp .32% at 3"w.c. dp; 7.91% at .12"w.c. dp; 31.62% at .03" dp
• Minimum dp limit:
0.01"w.c.
• Output: • Protocol:
4-20 mA DC Linear
Hart
• Ambient Temperature range: • Process Fluid Temperature Range:
-40 to 185°F, -40 to 176°F (w/LCD display)
-40 to 212°F
(with direct mounted pressure transmitter) • Pressure Rating:
0.5 psia to 750 psig
• Connections:
½" NPT conduit
• 3 Valve Manifold connections:
½" NPT
• Certifications:
FM Explosion Proof, Dust and Ignition Proof; Class I, Div1, Groups B, C, D. T5; Class II and III Div 1, Groups E, F,G, T5
• Enclosure type: • Part Number:
4X
R895-8631 (without display) - R895-8631-LCD (with display)
Temperature: Select TC or RTD Option - Thermocouple • Type:
J, mineral insulated (MgO)
• Length:
8"
• Sheath Material: • Connection: • Part Number:
304 Stainless Steel
½" NPT conduit
R860-3921
Option - RTD • Type: • Length:
3 wire, 100 ohm platimum sensor
8"
• Sheath Material: • Connection: • Part Number:
304 Stainless Steel
½" NPT conduit
R860-3992
Optional Pressure Switch Differential Pressure • Range:
0.40 to 4.00"w.c.
• Max. Oper. Pressure:
7 psi
• Contact Rating:
5A resistive, 3A inductive @ 120VAC SPDT Silver Contacts ¼ " NPT positive connection 1⁄8 " NPT negative connection
• Connection:
• Enclosure Type: • Part Number:
NEMA 4
8757-A4-4i
Static Pressure • Range:
12 to 60"w.c.
• Max Oper. Pressure:
7 psi
• Contact Rating:
10A resistive, 8A inductive @ 120VAC SPDT Silver Contacts
• Connection:
¼ " NPT NEMA 4
• Enclosure Type: • Part Number:
8757-GAO-A4/4/6
* Other pressure transmitters are available. Different span, agency approvals and SIL rated units are available. Contact your North American sales representative for availability.
Bulletin 8631 page 3
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