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ats:meters
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ATS Multi-Meters
Suggested multi-meters for Auto Mains Fail Transfer Switch :: Relay Logic.
- Refer to product documentation for the correct wiring diagram.
| Manufacturer | Model | Description | Cost | Link | Image |
|---|---|---|---|---|---|
| Three current transformers per meter also required1) | |||||
| RS Pro | 1365377 | 3-digit, 3-line - V, A, kW, kVA, PF, kWH | $76 | RS Online |  |
| RS Pro | 1365382 | 4-digit, 3-line - V, A, kW, kVA, PF, kWH Contact closure alarm output | $86 | RS Online | |
| TruMeter APM | APM-PWR | 4 line + bar graph - V, A, W, VA, PF, kWH Analog & digital outputs | $225 | RS Online |  |
DANGER: Current transformers must be connected to a device, or short-circuited before power is applied in the circuit to be measured. Current transformers are constant current devices, not constant voltage like ordinary transformers.
- A C.T. with loose leads can have lethal voltage on the terminal, possibly over 1000V.
- Do not disconnect a C.T. when power is present in the measured circuit!
1)
Current transformer example: : https://us.rs-online.com/product/simpson/01305/70232978/
ats/meters.1716654038.txt.gz · Last modified: 2024/05/25 16:20 by Alan Shea
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