Spirax Sarco TVA Series User Manual

IM-P192-02 MI Issue 210
2.5 Technical data
IP rating IP65 with correct cable glands.
Power supply Loop powered nominal 24 Vdc
Outputs
4-20 mA (proportional to mass ow)
Pulsed output V
max
28 Vdc,
R
min
10 kW, V
on
0.7 V
max
Communication port
EIA 232C 15 m limit - See Section 4.12
RS485 for longer distances
(conversion from RS232)
Performance
System uncertainty to ISO 17025
(95% condence to 2 STD)
±2% of reading over the range of 10%
to 100% of maximum rated ow
±0.2% FSD from 2% to 10% of
maximum rated ow
Turndown: up to 50:1
2.6 Electrical connections
Electrical connections M20 x 1.5
2.7 Materials
Unit Part Material
TVA
Flowmeter body Stainless steel S.316 1.4408 CF8M
Internals 431 S29 / S303 / S304 / S316
Spring Inconel X750 or equivalent
Flowmeter stem Stainless steel 300 series
Electronics housing Aluminium LM25
Pressure
sensing kit
Cable Polyvinyl chloride (PVC)
Sensor housing AISI 304 Stainless steel 1.4301
Sensor AISI 630 Stainless steel 1.4542
'O' ring Nitrile Butadiene Rubber (NBR)
Adaptor AISI 431 Stainless steel 1.4057
High pressure
syphon tube
assembly
Tube
Carbon steel BS 3602: Part.1 1987 CFS 360
(zinc plated / passivated).
Valve
Body Carbon steel
Seat PEEK/ Polymain

Spirax Sarco TVA Series Specifications

General

Brand	Spirax Sarco
Model	TVA Series
Category	Measuring Instruments
Language	English