• 0-20 / 4-20 mA or 0-10 / 2-10 VDC Ranges
  • Low-Cost
  • Simple to Use
  • Compact Size
  • 4-Digit LED Display
  • One-Turn Adjustment Knob
  • +/- 0.5% +/- 1 Count Accuracy
  • Power 15-27 VDC or USB Power Bank


The PD9502 is a low-cost, compact, simple to use 4-20 mA or 0-10 VDC signal generator. It can easily be set for 0-20 mA, 4-20 mA, 0-10 V or 2-10 V ranges. Signal adjustment is made with a one-turn knob. A 15-27 VDC wall plug is provided with the instrument. Optional USB power bank is available.

Physical Features

PD9502 Physical Features
PD9502 Included Cables

PD9502 Included Cables


0-20 mA / 4-20 mA Output

0-20 mA / 4-20 mA Output

0-10V / 2-10V Output

Dimensions Units: Inches (mm)

PD9502 Dimensions

PDA1001 USB Power Bank

The PDA1001 is a portable USB power bank that can conveniently provide power to the PD9502 signal generator. The internal UL Listed 1,800 mAh lithium-ion Grade A battery can power up the PD9502 for over 6 hours. The PDA1001 includes a USB to Micro USB cable which can be used to recharge the power bank or power up the PD9502.

PDA1001 Features
PDA1001 Connected to PD9502

PDA1001 Powering Up PD9502

PDA1001 Dimensions Units: Inches (mm)

PDA1001 Dimensions


Display: 0.36" (9 mm) high red LED
Accuracy:+/- 0.5% +/- 1 count
Operating Temperature Range: -4 to 140°F (-20 to 60°C)
Connections: Removable screw terminal block
Output Ranges: 0-20 mA, 4-20 mA, 0-10 VDC, 2-10 VDC
Power Requirement: 15-27 VDC (wall plug provided)
Loop Voltage: When powered by USB: 13.5V,
When powered by DC supply: 2 VDC less than the supply output
Output Load Impedance Requirements: Voltage-type ≥ 2KΩ, current-type ≤ 500Ω
Accuracy: +/- 0.5% +/- 1 Count
Overall Dimensions: 2.0" x 3.3" x 0.9"
(W x H x D) (85 mm x 50 mm x 22 mm)
Weight: 2.1 oz (60 g)


The output of the signal generator is determined by the light under V or mA on the face of the instrument:

V or mA LightLight ColorActionOutput
VRedFlashing2-10 VDC
VRedSteady0-10 VDC
mAGreenFlashing4-20 mA
mAGreenSteady0-20 mA
  1. Connect the signal generator for desired output
  2. Set Output using the Range button on face of the instrument
  3. Adjust one-turn knob to desired output

Choose Your Options

Configurations other than those specified above are available at a $250 adder. Consult factory for desired model number and price.