Many panels only need a clear local reading of a 4-20 mA signal, without the cost of a separate power supply and extra wiring. The Precision Digital PD480 does exactly that: it draws everything it needs from the current loop, so you simply wire it in series with the transmitter.
Its 3½-digit LCD reads from -1999 to 1999, and the backlight is also loop-powered, so the reading stays visible in dim cabinets. The meter adds only 1.5 V to the loop (4.5 V with backlight), which keeps the impact on your loop budget low, and it passes HART signals through unchanged.
Scaling to engineering units is done in the field with zero and span potentiometers. The compact case snaps into a 73 x 40 mm cut-out and needs only 25 mm behind the panel.
Frequently asked questions
Does the PD480 need a power supply?
No. It is powered entirely by the 4-20 mA loop it is measuring.
How is the PD480 scaled?
With the zero and span potentiometers on the meter, so no programming is needed.
Where can I buy the Precision Digital PD480 in Malaysia?
Celectric in Penang is an authorised Precision Digital distributor. We quote, source and support the PD480 for customers across Malaysia and Southeast Asia, and our engineers can help you choose the right model and options.
