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Figure 5

.  Typical Time Response Characteristics

CUSTOM INFORMA-TION.

3.4 OUTPUT CURVE

If the instrument is ordered with a calibrated
output signal, the output curve for the unit can
be found after 

SECTION 6

.  For an

uncalibrated unit with a 4-20mA option, a
typical curve is shown in Figure 6.  Check

SECTION 6 

for the corresponding full scale

value for this instrument.  Flow can also be
found by the formula:

FLOW (%FS)  =  exp [ exp (0.5547* X + 0.26935 ) ]  /  0.1758

where X is the flow output signal in mA.

Figure 6

. Typical Output Curve (for units with 4-20mA output option)

Содержание Rheotherm 400

Страница 1: ...its satisfaction to have been thus defective this warranty being expressly in lieu of all other warranties express or implied and all other obligation or liabilities on Intek s part The purchaser will...

Страница 2: ...UT CURVE 11 SECTION 4 MAINTENANCE 12 4 1 GENERAL MAINTENANCE 12 4 2 FIELD CALIBRATION 12 4 3 SPARE PARTS 13 4 4 TROUBLE SHOOTING 13 TABLE III TROUBLE SHOOTING GUIDE 13 SECTION 5 CUSTOMER SERVICE 14 5...

Страница 3: ...utput or equipped with two adjustable SPDT relay switches and no flow monitor output Key features of the Model 400 Rheotherm flow switches flow monitors are No moving parts There are no rotating trans...

Страница 4: ...ature signal into a temperature compensated and scaled flow output signal The signal for most cases is proportional to the logarithm of flow rate Intek also utilizes a proprietary electronic time cons...

Страница 5: ...N 2 INSTALLATION Large fluid temperature transients can result in false alarms Consult factory for recommendations to minimize the impact of thermal transients These instructions cover installation ca...

Страница 6: ...ing Ifcleaningisneeded use non residue solventandwipe dry If the sensor has a connector box keep moisture out Make sure the lid is tightly sealed and if supplied the gasket is in place Seal conduit li...

Страница 7: ...All dual probe transducers NPT 2I BF 2I are installed so that the two probes are side by side across the fluid stream Never rotate the electronics housing If this occurs the transducer can be damaged...

Страница 8: ...ment of the instrument calibration cal potentiometer after installation See SECTION 4 2 For liquid measurement systems using high pressure gas to force flow the effects of the absorbedgasmustbeconside...

Страница 9: ...d except for 115 to 230 Vac conversions To select either 24 Vac or high voltage 115 or 230 Vac ensure that power has been disconnected Then remove the electronics module by removing the modular sensor...

Страница 10: ...pulling wire pot the conduit near the enclosure if there is any possibility of them trapping water or moisture The lid of the enclosure should be on tight enough to make a good seal against the gaske...

Страница 11: ...o about forty seconds depending on where the level adjust is set Apply power only after reading and adhering to instructions in SECTION 2 of this manual 3 2 1 Adjustment of the ALARM1 flow switch setp...

Страница 12: ...10...

Страница 13: ...Trip2 potentiometer counter clockwise until the relay de energizes This is the alarm condition C If RELAY2 is de energized adjust Trip2 slowly clockwise just until the relay energizes D If the relay c...

Страница 14: ...nces between the two settings 3 3 GENERAL INFORMATION The Model 400 instrument is compensated for a wide range of both ambient and flowing media temperatures However abrupt changes in the temperature...

Страница 15: ...nit can be found after SECTION 6 For an uncalibrated unit with a 4 20mA option a typical curve is shown in Figure 6 Check SECTION 6 for the corresponding full scale value for this instrument Flow can...

Страница 16: ...ts which it operates The joints of all intrusive probes tips should be inspected for wear and corrosion 4 2 FIELD CALIBRATION If the unit was purchased with a 4 20mA output and calibrated at the facto...

Страница 17: ...ON PROBABLE CAUSE REMEDY Flow trip level continually drifting downward with constant flow Coating forming on wetted surface of transducer 1 Clean transducer periodically 2 Adjust span potentiometer cl...

Страница 18: ...and have questions please call our experienced engineers for assistance In many cases we can solve a problem over the phone Please provide as complete a description as possible of the problems encoun...

Страница 19: ...50 60 Hz G 200 240 Vac 50 Hz G other Maximum Pressure G X Full Scale Flow G Analog Output G Clamped current supplying 4 20mA flow output G none Relay Output s G ALARM1 SPDT 10A res 125 Vac G ALARM2 S...

Страница 20: ...16...

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