Toshiba LF232*F Instruction Manual

 

 

2

10D minimum on upstream side and 

5D minimum on downstream side 

Note: D is a nominal meter size. 

Fluid conductivity: 100µS/cm minimum 

Fluid temperature:  32 to 131 °F  (0 to 55 °C ) 

Ambient temperature: 14 to 122 °F (-10 to 50 °C ) 

Dimensions and Weights: See figures 3 to 5. 

Power supply: 

100 to 120 Vac (80 to 132 Vac), 50/60Hz 

Power consumption: 50VA (30W) or less 

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Meter sizes: 6” (150 mm ), 8” (200 mm ), 10” (250 

mm ), 12” (300 mm ), 14” (350 mm ), 16” (400 

mm ), 20” (500 mm ), 24”(600 mm ) 

0 psi or 0 bar (0 MPa) to the pressure limited by 

flange standard 
(fully-filled condition) 

ANSI 150, JIS 10K 

Structure:   

IP67 and NEMA 4X Watertight (std. ) 

IP68 and NEMA 6P  Submersible (opt.) 

Coating: Phthalic acid resin coating, pearl-gray 

colored (standard for watertight type) or black tar 

epoxy (option for watertight type and specified 

exclusively for submersible type)  

Case — carbon steel 
Measuring pipe — 304 stainless steel 
Linings — The following are the standards: 

6” to 16” (150 to 400mm ) 

EPDM rubber 

20” & 24” (500 & 600mm ) 

Chloroprene rubber 

Electrodes — 316L stainless steel (std.) 
Grounding rings — The following are the 

standards.

 

6” to 16” (150 to 400mm ) 

316 stainless steel 

20” & 24” (500 & 600mm ) 

304 stainless steel 

See Table 1 for optional materials and other 

related information. 

Coating: phthalic acid resin coating (std.), 
                Pearl-gray colored 

Cable glands: Provided as standard, R(PT) 1/2 

male screw. 

Applicable diameter: 0.433 to 0.512 inch  (11 

to 13mm ) 

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Input signals 

Analog signal — the voltage signal from detector, 

proportional to process flow rate. 

Digital input DI (opt.) 
(added when 9

th

 digit of specification code is ”3”) 

Voltage level: High level 20 to 30 V dc 

Low level 2 V dc or less 

Input resistance: 2.7 k

Ω 

Number of inputs: 2 points (DI1 and DI2)

 

DI functions:  

For digital input function, either of the following 
functions can be selected. 

• Range switching  

One Digital Input is used: switching between large 
and small ranges of forward/reverse, 2-range 
measurement. 
Two Digital Inputs are used: switching between 
ranges of single direction, 4-range measurement. 

• Totalizer control input 
  Totalizer Start/Stop control or Reset/Start 
•Output hold input  

Fixed with set value for current output and pulse 
output (loop check) 

• Zero adjustment  

Starts zero adjustment (on-stream at zero flow rate) 
when DI voltage level goes low after remaining 
high for 10 to 20 seconds. 

Output signals 

4–20mAdc (load resistance 0 to 1K

Ω) 

Digital output (DO) — One point (std.) and three 

more point is optionally available as follows. 

Output type: Transistor open collector   

Number of outputs: One point 

Output capacity   : 30Vdc, 200mA maximum 

Digital output DO2～DO4 (opt.)  

(Added when 9

th

 digit of specification code is “3”)  

Out put type: Solidstate relay output (non polarity) 

Number of outputs: 3 points 

Output capacity: 150Vdc, 150mA maximum or 

150Vac (peak to peak),  

100mA maximum 

DO functions—Four digital output function, either of 

the following functions can be selected. 

DO1 or DO2 can be selected (Forward direction 

pulse and reverse direction pulse can be assigned