Macromatic Industrial Controls KnowledgeBase & Blog

Industry’s First Deadfront-Door Mounted Seal Leakage Relay By Macromatic

Friday: May 19, 2017 : Blog

Macromatic now offers the industry's first deadfront-door mounted seal leakage-only relay, the SFF Series

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New Macromatic Over Temp/Seal Leak Relay Works with Ebara Submersible Pumps

Monday: April 3, 2017 : Blog

Macromatic's TCF-E Series Over Temperature & Seal Leakage Relays are a drop-in equivalent for the PMR4 Pump Monitoring Relays from Ebara. 

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Inner Door-Mounted Alternating Relays from Macromatic

Thursday: March 23, 2017 : Blog

Macromatic introduces our new ARF Series alternating relays for mounting on the inner door.  Now the top-mounted switch is accessible without having to open the door.

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Replacing a Crouzet PNR110A with a Macromatic SFP120A100 Seal Leak Relay

Wednesday: March 22, 2017 : Seal Leakage & Temperature Relays

Issue: I have been using a Crouzet PNR110A liquid level relay as a seal leak relay. To make it work properly, I had to jumper pins 5 & 6. Now, I want to switch to the Macromatic SFP120A100 unit and notice no such jumper is shown on the connection diagram. Is it required or not?

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New Switch on Current Sensor Relay

Thursday: March 16, 2017 : Blog

Due to the obsolescence of a switch, Macromatic updated the switch component on the CAH Series Current Sensor Relays effective March 20, 2017. All other functionality remains the same.

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Typical Applications for Alternating Relays

Tuesday: March 14, 2017 : Alternating Relays

Issue: How do I make connections to my Alternating Relay? Solution/Resolution: Macromatic offers several versions of Duplex Alternating Relays.  The following examples are typically the way connections are made to.  The loads could be pumps, compressors, or air conditioning/refrigeration units.

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Using Alternating Relays with DC Input Voltages

Tuesday: March 14, 2017 : Alternating Relays

Issue: Do your Alternating Relays work on DC voltages? Your catalog used to only mention AC and the products were only marked as AC. 

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Using a 120V Alternating Relay with 208V Loads

Monday: March 13, 2017 : Alternating Relays

Issue: Can I use an Alternating Relay with one input voltage value to control multiple loads at a different voltage?

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What is Sequence On – Simultaneous Off Operation on Pump Control?

Monday: March 13, 2017 : Alternating Relays

Issue: I want my two loads to come on one after the other, but then both loads to stay on together until the last control switch is opened.

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Rapid Cycling of Control Switch Damages or Destroys Large Pump or Compressor Motors

Monday: March 13, 2017 : Alternating Relays

Issue: How do I prevent a Bouncing Control Switch Due to Splashing Water from Rapidly Energizing One Load and Then the Other?  

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Knowledgebase General | Alternating Relays | Current Sensing Relays | Liquid Level Control Relays | Seal Leak Relays | Three-Phase Monitor Relays | Time Delay Relays | Voltage Monitor Relays