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10/15/2020 

(C) 2020 BOLTEK CORP 

 

EFM-INV_Instruction_1.3 

 

Boltek EFM-INV-M / EFM-INV2 / EFM-INV3  

Inverting Mounting Kit 

 

Installation Instructions 

      

 

 

Introduction 

The EFM-INV-M, EFM-INV2, and EFM-INV3 Inverted Mounting Kits will allow you to mount your EFM-100 or EFM-
200 Electric Field Mill in the inverted downward-facing configuration.  Inverting your field mill will provide you with 
reduced precipitation noise.

  

 

ELECTROCUTION WARNING:  

INSTALLATION THIS PRODUCT NEAR POWERLINES IS DANGEROUS.  

FOR YOUR SAFETY, FOLLOW THE INSTALLATION DIRECTIONS. 

 

 

SEE ADDITIONAL WARNINGS ON REVERSE 

 

Summary of Contents for EFM-INV-M

Page 1: ...M INV3 Inverted Mounting Kits will allow you to mount your EFM 100 or EFM 200 Electric Field Mill in the inverted downward facing configuration Inverting your field mill will provide you with reduced precipitation noise ELECTROCUTION WARNING INSTALLATION THIS PRODUCT NEAR POWERLINES IS DANGEROUS FOR YOUR SAFETY FOLLOW THE INSTALLATION DIRECTIONS SEE ADDITIONAL WARNINGS ON REVERSE ...

Page 2: ...d Grounding Warning Warning Do not locate the sensor near overhead power lines or other electric light or power circuits or where it can come into contact with such circuits When installing the sensor take extreme care not to come into contact with such circuits as they may cause serious injury or death For proper installation and grounding of the sensor please refer to national and local codes e ...

Page 3: ... mount bracket EFM INV2 2 foot tripod or EFM INV3 3 foot tripod kit should include the following items Inverting Mast Shroud Silicone Grease Junction Box Junction Box Cover 3 4 NPT Strain Relief Pole mount bracket EFM INV M with clamps bolts Optional 2 Tripod EFM INV2 Optional 3 Tripod EFM INV3 ...

Page 4: ...or and the ground roof surface If installed higher adjust the sensitivity using one of the supplied attenuator plugs KEEP CLEAR AREA Persons or animals entering the Keep Clear Area may be detected by the field mill as a High Electric Field or Lightning If the field mill is mounted at ground level a fence or other barrier should be erected around the field mill Keep the area directly under the fiel...

Page 5: ... the sensitivity and lightning strike detection it is also recommended that any large objects or structures are no higher than a 30 degree angle up from the surface directly below the sensor Secure the tripod to the roof or patio slabs concrete pad on the ground For a no holes tripod installation on a flat roof the tripod may be secured to patio slabs placed on the roof Run cables away from the fi...

Page 6: ...and place around inverted mast Secure bolts to bracket as shown below Open hose clamps and hold bracket against pole Place hose clamps through bracket and tighten around pole or tripod mast Recommended pole size is between 2 5 and 4 outer diameter If a larger pole is used bigger hose clamps can be purchased at a local hardware store ...

Page 7: ...Assembling the hardware EXPLODED VIEW OF ASSEMBLY COAT THREADS AND RUBBER WASHER WITH SILICONE GREASE RUBBER WASHER MUST BE LOCATED BETWEEN NUT AND SHROUD FAILURE TO PROPERLY INSTALL WASHER WILL RESULT IN WATER DAMAGE TO FIELD MILL NOT COVERED BY WARRANTY ...

Page 8: ... 4 TURNS WITH WRENCH COAT PIPE THREADS WITH SILICONE GREASE FAILURE TO PROPERLY TIGHTEN BULKHEAD ONTO MAST WILL RESULT IN WATER DAMAGE TO FIELD MILL NOT COVERED BY WARRANTY READY FOR THE FIELD MILL TO BE CONNECTED REFER TO THE EFM 100 200 DOCUMENTATION FOR DETAILS ON CONNECTING AND GROUNDING YOUR FIELD MILL ...

Page 9: ...10 15 2020 C 2020 BOLTEK CORP EFM INV_Instruction_1 3 EFM INV2 USE 0 75X EFM INV3 USE 0 5X INSTALL THE APPROPRIATE SENSITIVITY PLUG BEFORE CONNECTING FIELD MILL ...

Page 10: ...r Optic connectors then screw the Field Mill to its cover Lower the Shroud over the Field Mill Lower the greased rubber washer onto Bulkhead Connector and then the Bulkhead Nut Tighten the Bulkhead Nut until the Rubber Washer is visibly compressed PIPE WRENCH TIGHTENING NUT ONTO RUBBER WASHER NOTE LEFT HANDED COUNTER CLOCKWISE THREAD ON NUT ...

Page 11: ...AGE TO FIELD MILL NOT COVERED BY WARRANTY Attach junction box to the bottom of the inverted mast if not pre assembled Remove tightening nut and rubber insert from the strain relief then screw into the bottom of the junction box Slide the strain relief nut onto the cable then insert cable into the junction box with a wide loop and insert into connector Secure the cable with the rubber insert and ti...

Page 12: ...bulkhead nut is reverse threaded Turn clockwise to loosen Remove the three case screws and slide the EFM 100 down from the cover Insert the small Molex connector into the junction box and feed through the mast until it reaches the EFM 100 and insert the plug into the fiber optic header until it locks into place Wipe the inside of the junction box with alcohol swab then remove double sided tape bac...

Page 13: ...10 15 2020 C 2020 BOLTEK CORP EFM INV_Instruction_1 3 Final assembly views Assembly on Non penetrating Roof Mount Assembly on 3 tripod Pole mount assembly ...

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