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10/15/2020
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
(C) 2020 BOLTEK CORP
EFM-INV_Instruction_1.3
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Summary of Contents for Boltek EFM-INV-M
- Page 1 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.
- Page 2 Canada: Canadian Electrical Code, Section 54). Document Revision History 2009 Original document 07/31/2011 Added instructions to apply silicone grease to threads and washer 10/10/2012 Updated contents of the Kit 10/15/2020 Added fiber optic assembly upgrade installation (C) 2020 BOLTEK CORP EFM-INV_Instruction_1.3...
- Page 3 10/15/2020 Contents of the Kit Your EFM-INV-M (Pole 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)
- Page 4 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 field mill clear of long grass or weeds. Patio slabs or a poured concrete pad is recommended for ground installations. (C) 2020 BOLTEK CORP EFM-INV_Instruction_1.3...
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Page 5: Field Of View
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 field mill sensor, not directly underneath. (C) 2020 BOLTEK CORP EFM-INV_Instruction_1.3... - Page 6 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. (C) 2020 BOLTEK CORP EFM-INV_Instruction_1.3...
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Page 7: Exploded View Of Assembly
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 (C) 2020 BOLTEK CORP EFM-INV_Instruction_1.3... - Page 8 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 (C) 2020 BOLTEK CORP EFM-INV_Instruction_1.3...
- Page 9 10/15/2020 EFM-INV2 USE 0.75X EFM-INV3 USE 0.5X INSTALL THE APPROPRIATE SENSITIVITY PLUG BEFORE CONNECTING FIELD MILL (C) 2020 BOLTEK CORP EFM-INV_Instruction_1.3...
- Page 10 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 ) (C) 2020 BOLTEK CORP EFM-INV_Instruction_1.3...
- Page 11 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 tighten nut onto strain relief. Screw the cover plate onto the junction box. (C) 2020 BOLTEK CORP EFM-INV_Instruction_1.3...
- Page 12 Insert fiber optic cable through the bottom of the junction box, with a large loop. Carefully line up the key slot and wing tabs and insert cable into connector with a quarter turn. (C) 2020 BOLTEK CORP EFM-INV_Instruction_1.3...
- Page 13 10/15/2020 Final assembly views Assembly on 3’ tripod Pole mount assembly Assembly on Non-penetrating Roof Mount (C) 2020 BOLTEK CORP EFM-INV_Instruction_1.3...
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