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Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • [email protected]

•  Mounting Instructions

• 

With the lid of your LPU closed, remove the cable knock out.

• 

Clear the flashing.

• 

Open the lid of your LPU and intall cable gland or conduit connection.

• 

Connect 12-28 VDC supply wire to (+) Terminal

• 

Connect 4-20 mA output wire to (-) Terminal.

•  Electrical Installation

• 

Remove the sensor and store it in a dry place, at a temperature between -40° F and 180° F.

•  Removal Instructions

Mounting your LPU is easy if you follow a few simple steps:

• 

Never over-tighten the sensor.

• 

Always screw in your sensor by hand to avoid cross-threading. Thread failure can be a problem if you 
damage threads by over-tightening them or by crossing threads.

 

IMPORTANT

: Do not over tighten! The sensor should be threaded in only hand tight.

The LPU display and programming buttons can be accessed by loosening the screw that secures and seals 
the sensor’s lid.  The LCD display shows the distance measurement. The display is also used to view the 
individual modes and their values when programming.

The LPU controls operate similar to a digital wrist watch. The LPU has four buttons, MODE UP, MODE 
DOWN, VALUE UP, and VALUE DOWN (See Figure 3.1). The MODE UP/DN buttons allow the user to select the 
desired mode while VALUE UP/DN buttons allow the user to view and alter the settings. 

To select a mode, press the MODE UP or MODE DOWN button until the desired mode is displayed. Press the 
VALUE UP or VALUE DOWN button once to view the current setting of that mode.

To change the selected mode setting, press the VALUE UP or VALUE DOWN button until the desired value is 
displayed.

Chapter 3: Set Up and Operation

•  User Interface

Summary of Contents for LPU-2127

Page 1: ...APG R Doc 9002657 Rev B 01 15 LPU 2127 User Manual...

Page 2: ...ocedures and Notes 3 Tools Needed 3 Installation Notes 3 Mounting Instructions 4 Electrical Installation 4 Removal Instructions 4 Chapter 3 Set Up and Operation 4 User Interface 4 5 Operation Modes 6...

Page 3: ...tions Reading your label Every APG instrument comes with a label that includes the instrument s model number part number serial number and a wiring pinout table Please ensure that the part number and...

Page 4: ...al or consequential damages losses or expenses directly or indirectly arising from the sale handling improper application or use of the goods or from any other cause relating thereto and APG s liabili...

Page 5: ...88 525 7300 Fax 1 435 753 7490 www apgsensors com sales apgsensors com Chapter 1 Specifications and Options Dimensions 4 00 101 6 mm 5 50 139 7 mm 6 05 153 7 mm 2 00 50 80 mm 2 40 60 96 mm 2 30 58 42...

Page 6: ...Rate 3 seconds 4 mA 0 6 seconds 20 mA Accuracy Accuracy 0 25 of detected range Resolution 0 1 inch 2 54 mm Environmental Operating Temperature 40 to 60 C 40 to 140 F Internal Temperature Compensation...

Page 7: ...that it has a clear perpendicular sound path to the surface being moni tored Your sensor should be mounted away from tank or vessel walls and inlets See Figure 2 1 The sound path should be free from...

Page 8: ...over tighten The sensor should be threaded in only hand tight The LPU display and programming buttons can be accessed by loosening the screw that secures and seals the sensor s lid The LCD display sh...

Page 9: ...signal returning to the sensor See Figure 3 2 Three bars indicates excellent signal strength two bars indicates good signal strength one bar indicates fair signal strength no bars indicates loss of e...

Page 10: ...istance Units Mode 1 Range 0 9999 Default 1 00 ft Mode 2 sets the 4 mA distance measured from the Zero Point See mode 10 MODE DESCRIPTION PARAMETERS 3 20 mA distance Units Mode 1 Range 0 9999 Default...

Page 11: ...ut of the sensor will go to 22 mA If set to 2 the output will go to 3 75 mA MODE DESCRIPTION PARAMETERS 6 Fail safe Units Seconds Delay Range 5 9999 Default 15 Mode 6 sets the delay in seconds before...

Page 12: ...tomatically change the sensitivity and pulses to match the application Modes 13 and 15 limit the maximum level that sensitivity and pulses can be manipulated when operating in AutoSense Modes 13 and 1...

Page 13: ...is used for a sensor installed in a stand pipe Because of the physical properties of an ultrasonic sensor objects cannot be detected closer than approximately 1 foot from the face of the transducer H...

Page 14: ...gure 4 2 Adjust the Distance Offset value mode 10 until the distance reading on the sensor matches the actual measured distance to the target Repeat previous two steps until no further adjustment is r...

Page 15: ...the factory via phone email or online chat We will issue you a Return Material Authorization RMA number with instructions Phone 888 525 7300 Email sales apgsensors com Online chat at www apgsensors c...

Page 16: ...f the system E lectrical equipment connected to associated apparatus should not generate more than 250 V rms through the Hazardous area and into the Non Hazardous area DO NOT DIS CONNE CT WHILE CIR CU...

Page 17: ...rth Logan UT 84321 USA Attention Karl Reid The products listed below are eligible to bear the CSA Mark shown with adjacent indicators C and US for Canada and US or with adjacent indicator US for US on...

Page 18: ...CLASS 2258 04 PROCESS CONTROL EQUIPMENT Intrinsically Safe Entity For Hazardous Locations CLASS 2258 84 PROCESS CONTROL EQUIPMENT Intrinsically Safe Entity For Hazardous Locations Certified to US Stan...

Page 19: ...15 Tel 1 888 525 7300 Fax 1 435 753 7490 www apgsensors com sales apgsensors com Certificate Master Contract Project Date Issued MARKINGS...

Page 20: ...may require these markings to also be provided in French language It is the responsibility of the manufacturer to provide bilingual marking where applicable in accordance with the requirements of the...

Page 21: ...Automation Products Group Inc Tel 1 888 525 7300 Fax 1 435 753 7490 www apgsensors com sales apgsensors com APG R...

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