# 224 Keithley Current Source Used

**Additional Features:**

-   Display: 0.5 in LED digits, 4½-digit signed mantissa, 1-digit signed exponent
-   Maximum Allowable Common Mode Voltage (Output or Output Common to Chassis): 250 V RMS, DC to 60 Hz
-   Increment/Decrement: automatic, manual or trigger modes
-   Range of Dwell Times: 50 ms to 999.9 s
-   Output Load: Output load must be non-inductive
-   External Trigger: TTL-compatible External Trigger Input and Output
-   Output Connections: Teflon® insulated 2-lug triax connector (specialty connector 30JR121-1) for output; five way binding posts for GUARD, OUTPUT COMMON and CHASSIS GROUND; BNC (chassis isolated) connectors for EXTERNAL TRIGGER INPUT and OUTPUT
-   All connections on rear panel

The Keithley 224 programmable current source was designed for general purpose bench or system use. The INCREMENT/DECREMENT function is manual or automatic, and selectable dwell times provide stepped ramp capabilities.

## Details

- **Price:** 3195.0 USD - 3615.0 USD
- **Vendor:** Keithley
- **Type:** Curr Source
- **Tags:** Current Source, Keithley, Manufacturers, Power Supplies & Loads, product_manual_group_1, Product_used

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| None | 3195.00 USD | In stock |
| NIST Traceable | 3405.00 USD | In stock |
| NIST Traceable with Full Data | 3475.00 USD | In stock |
| ISO IEC 17025 Accredited | 3615.00 USD | In stock |

## Images

- 224 Keithley Current Source Used

---

> Source: [ValueTronics](https://valuetronics.com/products/224-keithley-current-source-used)
> Updated: 2026-05-21