FloBoss 407 Instruction Manual
B-20 Rev 5/00
MVS205 Specifications*
DIFFERENTIAL PRESSURE INPUT
Range: 0 - 250 in H
2
O (0 - 62.2 kPa)
Reference Accuracy: ±0.075% of span (includes
linearity, hysteresis, and repeatability effects) for
spans up to 10:1 turndown.
Stability: ±0.1% of upper range limit for 12 months.
STATIC PRESSURE INPUT
Range: Either Absolute or Gauge:
¨ 0 - 800 psia/psig (0 -5516 kPa)
¨ 0 - 3626 psia/psig (0 - 25,000 kPa)
Reference Accuracy: ±0.075% of span (includes
linearity, hysteresis, and repeatability effects) for
spans up to 6:1 turndown.
Stability: ±0.1% of upper range limit for 12 months.
PROCESS TEMPERATURE INPUT
Type: For platinum 100-ohm RTD (conforming to
IEC 751 Class B), with α = 0.00385.
Range: -40 to 400 °C (-40 to 752 °F).
Reference Accuracy: ±0.28 °C (±0.5 °F), exclusive
of RTD sensor error. Specification includes linearity,
hysteresis, and repeatability effects.
Excitation Current: 130 µA.
OUTPUT (MVS205R Only)
RS-485 asynchronous-style serial communication
using Fisher protocol for up to 4000-foot distance.
POWER
20 mA dc max. at 8 to 30 Vdc, supplied by FloBoss
or Remote MVS Interface.
ENVIRONMENTAL
Operating Temperature: -40 to 65 °C (-40 to 149 °F).
Storage Temperature: -50 to 85 °C (-58 to 185 °F).
Operating Humidity: 0 to 100%.
DIMENSIONS (With Head)
5.8 in. H by 6.4 in. W by 3.3 in. D (147 mm by 163
mm by 84 mm). Head by itself is 3.2 in. H by 6.0
in. W by 3.0 in. D (81 mm by 152 mm by 76 mm).
CONNECTIONS
Conduit: Head has two 1/2-inch NPT
connections.
Process: 1/4-18 NPT on 2-1/8 inch centers.
CONSTRUCTION
Sensor Body and Coplanar Flange: 316 SST.
Wetted Parts: 316 SST is standard; Hastelloy
(NACE compliant) is available. Wetted O-rings
are glass-filled TFE.
Electronics Head (MVS205R Only): Urethane-
painted die-cast aluminum alloy, rated Type 4X.
MOUNTING (MVS205R Only)
Pipestand: Mounts on 2-inch pipe with U-bolt
and optional flange bracket.
Wall/panel: Mounts with optional flange bracket,
bolted on 2.8 in. centers.
WEIGHT
Including head, 6.7 lb. (3.0 kg).
APPROVALS (MVS205R Only)
Approved by CSA as Models W30248-Series or
RS3-Series for hazardous locations Class I, Divi-
sion 1 (explosion proof), Groups C and D.
Installation requires unarmored RTD cable to
maintain rating.
Approved by Measurement (Industry) Canada for
custody transfer.
*For additional Integral MVS205 specifications, see the FloBoss 407 specifications in Section 2.
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