Hello,
Im building a homebrew system and I want to control with a Labjack U3-HV, 3 Heaters, 5 Temperature Sensors, 3 water pumps and 3 level sensors.
Heaters: Camco 02963 5000 W 240V
Pumps: March 815 PL (0.04 HP, 115V/60 Hz)
Temp. Sensor: EI1034 Temperature Probe
Level Sensor: SRF02 Ultrasonic Sensor
Im not sure wich Solid State Relays I need and how to connect them.
Thank you
Controlling March Pumps and Heaters
Started by
alberto
, Sep 05 2012 10:49 AM
1 reply to this topic
#2
LabJack Support
-
- Admin
- 8677 posts
Posted 05 September 2012 - 02:11 PM
Here is a $20 SSR we often use that is rated for 280VAC/40A:
Jameco 176719
Note #1: This SSR is rated for 40 amps, but likely needs a heat sink to achieve that.
Note #2: Turning on/off inductive loads (e.g. motor) tends to create radiated and conducted EMI transients. This Kyoto SSR appears to do zero-cross switching, which will reduce EMI. Not sure if this SSR has a snubber to further reduce EMI. If you notice problems (e.g. USB communication errors that coincide with turning the motor on/off), you might need to find an SSR specifically rated for inductive loads.
Jameco 176719
Note #1: This SSR is rated for 40 amps, but likely needs a heat sink to achieve that.
Note #2: Turning on/off inductive loads (e.g. motor) tends to create radiated and conducted EMI transients. This Kyoto SSR appears to do zero-cross switching, which will reduce EMI. Not sure if this SSR has a snubber to further reduce EMI. If you notice problems (e.g. USB communication errors that coincide with turning the motor on/off), you might need to find an SSR specifically rated for inductive loads.
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users
