BASIC+tm 421

Insertion Style Threaded Single Probe

Specifications

Applications

• Flow and Level

Material of Construction - Sensor

• 316L Stainless Steel,All-welded,Standard

Process Connection - Threaded

• 1/4",1/2", 3/4", 1", 1 1/4", 1 1/2" and 2" MNPT (Male National Pipe Thread)

Insertion 'U' Lengths

• Imperial:
  Standard insertion lengths include 2", 3", 4", 6".
  Custom lengths are available from 2.5" to 120"
• Metric:
  Standard insertion lengths include 5cm, 7.6cm, 10.1cm, 15.2cm.
  Custom lengths are available from 6.0cm to 305cm

Sensor Operating Temperature Range - Continuous Use

• -55° C to +200° C (-67° F to +392° F)

Operating Pressure - Sensor

• Maximum working pressure to 3500 psig (24 Mpa) at 21° C (70° F)
• MWP derated with temperature
• Higher ratings available

Electronics Operating Temperature Range - Continuous Use

• -55° C to +75° C (-67° F to +167° F).
  For temperatures above 75° C (+167° F) remote mounting of electronics enclosure is required.

Input Power

• 12-24 VDC; 115-230 VAC, 50-60 Hz
• Universal Power Input
• Power Consumption:
  Maximum 6 watts

Electronics - Standard Features

• Microprocessor based electronics, environmentally sealed
• Intelligent user interface, constant display of operation (Flow/Level)
• Temperature compensation
• Automated redundant self-test diagnostics
• MODBUS support via RS-485 communications*
• Variable heater power

Outputs

• MODBUS registers via RS-485
• Single SPST sealed relay contact rated @ 5 amps resistive 230 VAC or 24 VDC

Communications

• RS-485 using MODBUS compatible software

Switch Point Range

• Water-based Liquids:
  0.01 to 3.25 ft./sec.(0.003 to 1.00 meters/sec.)
• Hydrocarbon-based Liquids:
  0.01 to 5.4 ft./sec.(0.003 to 1.64 meters/sec.)
• Gases:
  0.25 to 200 std.ft./sec.(0.08 to 60 std.meters/sec.)
  Sp Standard condition: 21º C (70º F) at 14.7psi(1 ATM)
• Other Fluids:
  Contact Kayden
• Lower Flow Rates:
  The BASIC + is available for low flow rate applications with the In-Line 430 & 432 models

Level Switch Service Range

• Accuracy:
  ±0.25 inch (±0.64 cm)

Accuracy

• Flow service:
  ±0.2% of Set Point velocity over operating range of ±50°F(±28°C)
• Level service:
  ±0.25 inches(±0.64cm)
• Repeatability:
  ±0.5% of reading
  1% of full signal range at constant process conditions

Response Rates

• Approximately 0.5 to 30 seconds.

Agency Approvals

• FM - Flameproof
  - Class I, Division 1, Groups C & D
  - Temperature codes: T2D (Ta=75ºC), T3 (Ta=65ºC)
  - Class I, Zone 1, AEx d IIB
  - Type 4/IP55
• Blind cover standard
• Lens cover optional
• Enclosure epoxy coated with O-ring on 8-pin cover
• Security locking screw for cover

• FM - Flameproof
  - Class I, Division 1, Groups C & D
  - Temperature codes: T2D (Ta=75ºC), T3 (Ta=65ºC)
  - Class I, Zone 1, AEx d IIB
  - Type 4/IP55
• Blind cover standard
• Lens cover optional
• One electronics module per enclosure
• Enclosure epoxy coated with O-ring on 8-pin cover