GENERAL
MT86/MT86HT Flow Meter
2
Fluid Components International LLC
Specifications
• Process connection:
2-inch male NPT or 2-inch 150-lb. raised-face carbon steel
flange.
• Number of sensing points:
Up to 8 sensing points.
• Insertion length:
The duct dimensions at the measurement site determine the
insertion U-length.
• Material of construction:
All wetted parts are 316 stainless steel with nickel braze filler
per AMS 4777.
• Local enclosure:
NEMA 4X enclosure with 1 inch female NPT connection ports,
stainless steel, QDC connector.
• Remote enclosure:
NEMA 4X enclosure. Flow elements are equipped with 8-
conductor, 22 AWG, Kapton insulated foil shielded cable.
• Operating pressure:
Standard MT86 is 0-50 PSIG, or higher depending on
application.
• Operating temperature:
Standard flow element: -50 to 350 °F (-46 to 177 °C).
High temperature (HT) element: -50 to 850 °F (-46 to 454 °C).
Flow transmitter: 0 to +150°F (-18 to 66 °C) with LCD or -50 to
150 °F (-46 to 66 °C) without LCD.
• Flow range:
0.25 to 150 fps in gas under standard conditions (14.7 PSIA @
70 °F).
• Flow element assemblies:
May have 1, 2, 3 or 4 separate flow element assemblies. Must
contain a minimum of 2 sensing points per flow element.
• Input power:
Standard: 100-130 VAC or 200-270 VAC, 50/60 Hz,
50 watts maximum.
Optional: 18-36 VDC, 50 watts max.
• Output signal:
4-20 mA current loop capable of driving a 1000-ohm load.
Optional:
10-50 mA, 400 ohm load max.
0-5 VDC, 2 mA current max.
1-5 VDC, 2 mA current max.
0-10 VDC, 2 mA current max.
• Interconnecting cable:
24 AWG (minimum) 8-conductor shielded cable with PVC
insulation (100 feet maximum). Longer distances are possible
using a heavier gauge wire for the heater circuit. See
page 6, for more information.
• Turn down ratio:
2:1 to 100:1 within flow element range customer specified.
• Accuracy:
±3% of full scale at the temperature of calibration; ±5% of full
scale with temperature compensation over a range spanning
200°F. Manufacturer determines the accuracy for specific duct
configurations upon submittal of a fully completed multipoint
mass flow meter application data sheet.
• Repeatability:
±1% of full scale.
• Approvals:
F.M., C.S.A., and CENELEC approvals are available for all MT
series multipoint mass flow meters.
Options
Enclosures:
Explosion-proof NEMA 7 electrical enclosure is available for
both the flow element and flow transmitter that complies with
NEC Code, Class I, Divisions 1 & 2, Groups C & D; Class II,
Divisions 1 & 2, Groups E, F, & G.
• Flow display indicators:
• 3½-digit Flow Rate Display.
• 8-digit Flow Totalizer Display.
• Available outputs (up to four module circuit boards):
Switch point: DPDT relay at 2 or 10 Amp, 115 VAC.
Current loop, 4-20 or 10-50 mA.
Analog voltage output: 0-5, 0-10, or 1-5 VDC.
Remote sensor diagnostic alarm: SPDT relay, 6A at 115 VAC.
• Rate limit board:
Permits adjustment of the rate of change of the output signal
with respect to the rate of change of the input signal. This option
is used when the measured flow is fluctuating and a stable
output signal is needed.
• Mass-to-volume converter:
Changes the mass flow signal to a signal representing actual
cubic feet per minute or feet per second (actual velocity).
• Accessories:
The FES-200 flow element simulator simplifies verification of the
MT86/MT86HT in the field. This device provides the variable
resistance required to input a Delta "R".
Summary of Contents for MT86
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