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ValuMass™ 400 Inline Thermal Mass Flow Meter

Series 400 ValuMass™ flow meters offer a lower cost option for many flow applications with the high value associated with all of EPI’s flow measurement instrumentation.

AC power or remote display use additional enclosures. See drawings.

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Description

Series 400 ValuMass™ Flow meters

Low Cost / High Value

Our ValuMass™  Series 400 offer another lower cost option for many flow applications with the high value associated with all of EPI’s flow measurement instrumentation.

ValuMass™ flow meters include a robust feature set: 0 – 5, 10 VDC, 4 – 20mA, RS485 Modbus RTU and optional 0 – 1 kHz outputs (proportional to the gas mass flow rate); an RS232C port; 16-bit linearization technology for flow rate accuracy; a fully programmable relay; and rugged construction of 316/316L stainless steel wetted parts. An optional 2-line, 16-character backlit LCD displays the flow rate and the elapsed total readouts.

ValuMass™ inline and insertion flow meters accommodate virtually all installation requirements. The Series 400 inline style flow­ meters are available for line sizes from ¼” to 2”. The 3 ½” long flow sections have MNPT ends as standard for easy mounting in the process line. Other end fittings are available. ValuMass™ flow meters accept 24VDC, 115VAC or 230VAC input power as specified at the time of purchase.

Product Details

Below is our standard Integral configuration with one enclosure.

Below is our AC powered configuration with our Integral enclosure and additional enclosure for AC power.

Below is our remote enclosure configuration which includes two enclosures.

Below is our remote enclosure with additional enclosure for AC power. DC power does not require the 3rd enclosure.

Specifications

Approvals
CE Mark

Accuracy, including linearity (Ref.: 21°C)
±(1% of Reading + 0.5% of Full Scale + GTC)

Repeatability
± 0.2% of Full Scale

Linear Signal Output
Software Controlled 0 – 5 or 0 – 10VDC (Flow and Temperature)
4 – 20 mA (Flow and Temperature),
RS485 Modbus RTU (Flow Rate/Total, Temperature)
Optional 0 – 1 kHz (proportional to flow for total/counter)

Sensor response time
1 second to 63% of final value

Turn down ratio
100:1 @ 10 SFPM (.051 NMPS) Minimum Reading

Electronics PCB temperature range
-40° to 158°F (-40° to +70°C)

Gas temperature range
-40°–392°F (-40°–200°C)

Pressure Rating Maximum:
Insertion Flowmeters
500 PSIG (Stainless Steel ferrule)
25 PSIG (Teflon™ ferrule), 250 PSIG with Locking collar & safety cable.

Input Power Requirement
24 VDC @ 250mA
115 VAC 50/60 Hz 100mA optional
230 VAC 50/60 Hz 50mA optional

Transmitter Power Requirements
5 Watts or less

Relay Output Rating
1 Amp @ 30VDC (33W) (2 Relays, 1 if Freq. Out needed)

Communications
RS-232C, RS485 Modbus RTU

Display
Optional 2-lines, 16 characters per line, backlit LCD
(No Keypad)

Wetted Materials
316 & 316L Stainless Steel

Standard Temperature & Pressure (STP)
70°F & 29.92″ Hg (Air = 0.075 Lbs. / FT3)

NIST Traceable Calibration
Standard

Enclosure Rating
NEMA 4X (IP66)

NOTE: Specifications subject to change without notice.

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