PD420-461 4-20 mA Set Point Generator And Valve Positioner
Brand: Precision Digital Corporation
The PD420/21 set point generator and the PD460/61 valve positioner provide a convenient way to generate a 4-20 mA signal that can be used to control another device.
Both feature a backlit LCD. The PD420/21 set point generator can be programmed to display 0-100%, 4-20 mA or 3-21 mA and output either 4-20 mA or 3-21 mA.
The PD460/61 valve positioner is programmed to display a value of 0-100% relating to the 4-20 mA output. A built-in dial is provided to vary the displayed / output value. The dial may be programmed for coarse or fine adjustment.
The signal generator and valve positioner are both available as a panel mount or NEMA 4X version. In addition, NEMA 4X enclosures are provided to house up to three of the panel mount versions.
Decals are provided for %, mA, Open, and Closed for the user to apply to the faceplate. There is also a decal with a white background for the user to write a custom label.
Features- 4-20 mA Loop Set Point Generator
- Panel Mount or NEMA 4X
- 4-20 mA or 3-21 mA Output Ranges
- Set Point Displayed as 0-100%, 4-20 mA, or 3-21 mA
- Valve Position Displayed as 0-100%
- Built-in Dial for Changing Output
- Backlit Display
- Coarse or Fine Set Point Adjustment
- ± 0.5% Output Accuracy
- 0.01 Display Accuracy
- 15-30 VDC Power Requirement
- < 500 ohms Sampling Resistance
- Decals Provided for %, mA, Open, Closed, and Custom
Specifications
Accuracy
- Output: ± 0.5 %
- Display: 0.01
Output Ranges
- 4-20 mA or 3-21 mA
Display
- 0.3" (8 mm) high backlit LCD
Display Modes
- Current, 0-100%, 0-50.0 H
Front Panel
- NEMA 1: PD420 and PD460
Enclosure
- NEMA 4X: PD421 and PD461
Decals
- (2 each): %, mA, Open, Closed, and white background for the user to write a custom label
Operating/Storage Temperature
- 0° to 50° F (32° to 122° C)
Relative Humidity
- 0 to 90% non-condensing
Connections
- Removable Screw Terminal Block
Power Requirement
- 15-30 Vdc
Sampling Resistance
- Less than 500 Ω
Mounting
- Snap-in bezel; No tools required
Overall Dimensions (W x H x D)
- PD420 and PD460: 3.1" x 1.7" x 1.75" (80 mm x 42 mm x 44 mm)
- PD421 and PD461: 4.33" x 3.14" x 3.50" (110 mm x 80 mm x 89 mm)
Weight
- PD420 and PD460: 1.6 oz (45 g)
- PD421 and PD461: 8.8 oz (249 g)
