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www.heroninstruments.com

H.0IL 

and

 Sm.0IL  

Interface & Static Levels

Operating and Maintenance Instructions

Figure 2

To remove the probe you will need a 1

/2”

 

and 9/1

6” wrench. Use the wrenches to fully 

loosen the nut closest to the link and gently 

separate the link from the probe. Care must be 

taken to avoid breaking/pinching the wires 

while removing or replacing the probe. Make 

sure connections are tight.

Item 

Part Numbers

H.0IL Electronic Panel 

3202

Sm.0IL Electronic Panel 

3203

H.0IL Probe 

3200

Sm.0IL Probe 

3201

Ground Lead 

3208

Thumb Screws Set (2) 

3250

Figure 1

Battery Box

Thumb Screws (Keep Tight*)

Thumb Screws (Keep Tight*)

Start Button

Buzzer

Signal LED:

Water = 

Oil = 

ON:

On =

Low battery =

Made in Canada

HERON INSTRUMENTS INC.

447 Moxley Road, Dundas, ON L9H 5E2 CANADA

1-800-331-2032 or 905-628-4999

[email protected]

Please visit our website 

www.heroninstruments.com  

for more information on the complete 

Heron

 product line. 

HERON ALSO MANUFACTURES:

• Water Level Meters
• Data Loggers
• Conductivity Meters
• Temperature Meters
• Well Casing Indicators
• Well Depth Indicators
• Tag Lines
• Vertical Inspection Cameras

IMPORTANT

: ENSURE THAT THE P

ANEL RETAINING THUMB SCREWS 

(NUTS

) ARE TIGHT BEFORE USE*

 

* not applicable for Sm.0IL

Operating and Maintenance Instructions Inside

Figure 3

Hanger

 to support the meter at the well head.

Tape Guide

 to protect the tape from sharp 

edges.

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