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ULFA TECHNOLOGY SIT Series, Instruction Manual

The ULFA TECHNOLOGY SIT Series comes with a comprehensive Instruction Manual, providing detailed guidance for users. Get instant access to the free manual on our website, allowing you to conveniently download and refer to it whenever needed. Explore the features and functionalities of the SIT Series with ease from manualshive.com.

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SIT/SDS Series

DIGITAL DIFFERENTIAL PRESSURE SWITCH & TRANSMITTER

Copyright

ⓒ

2003.08 ULFA TECHNOLOGY CO.,LTD http://www.ulfatech.com

1

Instruction Manual

(Digital Differential Pressure Switch & Transmitter)

1.  General  Specification
2.  Installation
3.  W iring
4.  Function
5.  Setting  &  Calibration

4 Digit Display, 4-20mA Output. 2 Level Control

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Summary of Contents for SIT Series

Page 1: ...R Copyright ⓒ 2003 08 ULFA TECHNOLOGY CO LTD http www ulfatech com 1 Instruction Manual Digital Differential Pressure Switch Transmitter 1 General Specification 2 Installation 3 Wiring 4 Function 5 Setting Calibration 4 Digit Display 4 20mA Output 2 Level Control ...

Page 2: ...C 50 60Hz Connections 2 screw terminal block Display 4 Digit LED Warm up Time 15 minutes SWITCH Relay Contact 2 SPDT NC COM NO Contact Rating 1A 30VDC 0 5A 125VAC Connections 6 Screw terminal block Level setting Individual level setting Switch 1 2 TRANSMITTER SIT Range Table Connections 2 Screw terminal block Output Signal 4 20mADC limited at 30mADC Model No Range Resolution Loop Resistance 0 1100...

Page 3: ...he power specification is DC24V or AC220V 2 Verify that the facility s main power source is turned off or disconnected 3 Connect lead cable to power terminal matching polarity as shown in FIG 2 below Take care that wrong wiring will damage the Instrument and malfunction AC220V is not concerned to polarity CURRENT OUT CONNECTION 4 20mA SIT only The SIT sends a standard 2 wire 4 20mA current out 1 C...

Page 4: ...sent by RS232 or RS485 for option specification ID setting This mode set identification number for communication Over pressure warning SIT SDS displays warning on segment for over pressure positive and negative Upper 4 elements of 7segment blink for warning when measurement pressure over 10 for high pressure factory setting value And under 4 elements of 7segment _ _ _ _ blink for warning when meas...

Page 5: ...to measure mode Press ENTER for more than 3 seconds to save and exist in the switch level setting mode SWITCH2 OFF LEVEL Switch level setting Press MODE key to select sw2 off level set mode S2 LED is on while into the sw2 off level setting mode 2oFF displayed like left while press mode key in the sw2 off level setting mode Set your switch level use up down key Press ENTER once to save and exit to ...

Page 6: ...sure 20 times for 2 seconds and calculate average of measured 20 data to display and 4 20mA current output This functions is useful to measure hunted pressure Press MODE key for more than 3 seconds till sw1 LED is on and appear Int on segment display like left Release MODE key then appear current set time on segment display default set time is 0 5 sec Set your sampling time use up down key Press E...

Page 7: ...zero span etc Press MODE key for more than 3 seconds till appear Int on segment display Press MODE key once till appear FACt on segment display Press ENTER once to recall and exit to measure mode Press ENTER key for more than 3 seconds till appear SAvE on segm ent to recall and exist in the setting mode ID No setting ID number is use for address for communication to master It s concern to SIT SDS ...

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