For process engineers, plant operators, and instrumentation specialists seeking a continuous, reliable, and cost-effective level transmitter for liquids, slurries, or bulk solids in chemical, food, or wastewater plants, the Cap-Analog 410 delivers proven RF capacitance performance in a rugged, explosion-proof design.
Unlike conventional transmitters that drift, foul, or lose accuracy over time, the Cap Analog 410 integrates shielded amplifier circuitry, coating-rejection electronics, and independent zero/span calibration—ensuring stable analog output and long-term dependability in demanding environments.
With analog (4–20 mA or 0–10 V DC) output, universal power supply, and probe options up to 250 ft (76 m), the Cap Analog 410 is ideal for storage tanks, process vessels, silos, and sumps, offering maintenance-free measurement across a wide dielectric range—from light hydrocarbons to conductive slurries.
Accurately detects small dielectric changes to provide reliable level tracking in liquids, slurries, and powders.
Safe for hazardous environments (Class I Div 1); compact design simplifies installation.
Enables precise calibration in the field without signal interaction or drift.
Maintains accuracy even when product buildup occurs on the probe surface—reducing cleaning frequency even in viscous liquids.
Adapts to diverse applications—from low-dielectric hydrocarbons to conductive chemical slurries.
Supports flexible wiring standards and simplifies global installations.
Protects electronics against transient surges and electrical noise.
Suitable for tall silos, large storage tanks, and deep sumps.
Features independent Zero and Span adjustments that allow for precise, non-interactive field calibration and quick commissioning.
| Parameter | Description |
|---|---|
|
Measurement Technology |
RF capacitance with integral electronic amplifier |
|
Output Signal |
4–20 mA DC (isolated) or 0–10 V DC |
|
Power Supply |
115 VAC (90–135 V), 230 VAC (180–279 V), or 24 V DC (15–28 V) |
|
Power Consumption |
< 3 VA |
|
Frequency |
50–60 Hz |
|
Temperature Range (Electronics)
|
–40 °F to +160 °F (–40 °C to +71 °C) |
|
Zero Adjustment Range |
10 – 2,000 pF (standard); extended via DIP switch |
|
Span Range |
Low 50–1,000 pF; High 800–10,000 pF |
|
Stability |
±0.5 pF per 30 °F (max sensitivity) |
|
Build-Up Tolerance |
Up to 1,000 µmho conductivity coating |
|
Probe Options |
Teflon® (T), Kynar® (K), Stainless (BF), Dual (TCDD/KHDD); lengths to 250 ft |
|
Mounting |
¾″ NPT standard; flange or Tri-Clover sanitary options |
|
Housing |
Cast aluminum with polyester finish; NEMA 4, 5, 7, 9, 12; CSA/NEC Class I Gr C, D; Class II Gr E, F, G |
|
Coating Rejection |
1,000 µmho conductivity coating built-in |
|
Accessories |
Delavan AFI-150 / DFI-150 field indicators and remote displays |
Have a look at the flyer to get all the tech specs and product features.
Brochure
Read the manual for detailed information and instructions.
Manual
Check out a sample cert from our calibration lab.
Certificate
If you have a question that we have not covered then just get in touch and we’ll be happy to help.
We have tried to answer the most common questions we are asked here.
The Cap-Analog 410 uses a specialized shielded amplifier and coating rejection circuit. This advanced design is able to differentiate between the capacitance of the actual product level and the capacitance caused by buildup (up to 1,000 µmho conductivity coating) on the probe, ensuring the reported level remains stable and accurate.
Teflon®, Kynar®, and stainless-steel probes are available for chemical, food-grade, or high-temperature service.
Yes. The device features a wide dielectric range of 10 – 10,000 pF, making it highly versatile. It can accurately measure light, non-conductive hydrocarbons (low dielectric) as well as conductive liquids, slurries, and water-based solutions (high dielectric).