Druck UPS4E Handheld Electrical Loop Calibrator
The Druck UPS4E handheld electrical loop calibrator is a powerful, compact, and rugged tool used by engineers and technicians for calibrating and troubleshooting 4-20 mA loops in industrial environments. Designed for single-handed operation, the Druck UPS4E combines high precision, user-friendly controls, and advanced features into a portable device perfect for use in the field or plant.
What is the Druck UPS4E?
The Druck UPS4E is an advanced electrical loop calibrator designed for sourcing and measuring current in process control loops. It’s especially valuable for loop testing, instrument maintenance, and plant shutdown situations. With its easy-to-read backlit display and ergonomic design, this calibrator makes electrical loop testing more efficient and accurate.
Whether you’re working in a busy industrial setting or a controlled lab environment, the Druck UPS4E offers the reliability and accuracy needed for demanding calibration tasks.
Key Features of the Druck UPS4E
- Current Range: Measure or source 0 to 24 mA
- Accuracy: Up to 0.01% of reading + 1 count
- Display: Dual readout of mA and percentage (0–20 mA or 4–20 mA)
- Step and Ramp Functions: Pre-set step changes and adjustable ramp rates
- Built-in 250 Ω Resistor: Supports HART communication without needing an external resistor
- 24V Loop Power Supply: Internal power for loops when external power isn‘t available
- Continuity and Voltage Measurement: Includes 30 VDC measurement
- Data Logging: Record up to 100,000 data points
- Battery Life: Up to 72 hours in measure mode
- Durability: IP54-rated housing, drop-tested, and field-ready
Why Choose the Druck UPS4E Electrical Loop Calibrator?
1. Easy Operation
The compact design and intuitive controls make the Druck UPS4E easy to operate with one hand. Clear menus, fast step-through options, and direct access to test modes improve efficiency in the field.
2. Versatile Testing Options
The Druck UPS4E provides multiple test modes: source, measure, step, span check, ramp, and valve simulation. These allow you to quickly perform linearity checks, span adjustments, and actuator valve settings.
3. Built for Industrial Use
Housed in a rugged, high-impact ABS case and with an IP54 rating, this electrical loop calibrator is built to withstand dust, splashes, and harsh working environments. It also complies with MIL-PRF-28800F CLASS 2 shock/vibration standards.
4. Highly Accurate
With 0.01% reading accuracy and a resolution of 0.001 mA, the Druck UPS4E delivers pinpoint accuracy you can rely on for calibrating sensitive instruments and systems.
5. Data Logging Capability
Need to keep track of measurements? The UPS4E can store 100,000 data points with configurable intervals. The stored data can be downloaded via USB-C for analysis and reporting.
Technical Specifications
| Function | Range | Accuracy (±) | Resolution |
| Source/Measure mA | 0–24 mA | 0.01% of reading + 1-2 counts | 0.001 mA |
| Voltage Measurement | ±30 VDC | 0.01% of reading + 2 counts | 0.001 V |
| Loop Power Supply | 24 VDC | Internal | N/A |
| Datalog Memory | 100,000 points | User-configurable | N/A |
Temperature Range:
Operating: -10°C to 50°C
Storage: -20°C to 70°C
Power Supply: 4 × AA alkaline batteries
Battery Life: Up to 72 hours (measure mode), 18 hours (source mode at 12 mA)
Weight: 300g (with batteries)
Dimensions: 145mm × 73mm × 25mm
Connectivity: USB Type-C
Use Cases
- Loop testing during commissioning and troubleshooting
- Maintenance of transmitters and control systems
- Plant shutdown diagnostics
- Calibration of flow and pressure devices
- Valve checks for actuator performance
What comes with the Druck UPS4E?
When you purchase the Druck UPS4E, you receive:
- Druck UPS4E electrical loop calibrator
- Quick start and safety guide
- Alkaline batteries
- USB cable (Type C)
- Calibration certificate
- Test leads
- Optional accessories include a protective carry case and replacement USB cables
❓ Frequently Asked Questions (FAQ)
Q1: Can the Druck UPS4E power a current loop by itself?
A. Yes, it has an internal 24V loop power supply, allowing it to operate independently of external power sources.Q2: Is it compatible with HART devices?
A. Yes, the built-in 250-ohm resistor supports HART communication.Q3: How long do the batteries last?
A.Up to 72 hours in measure mode and up to 18 hours in source mode at 12 mA.Q4: Can data be exported?
A.Yes, logged data can be transferred to a PC via USB-C.Q5: Is this calibrator safe for industrial use?
A. Absolutely. It meets IP54 standards for dust and water resistance and passes shock/vibration tests for field use.
Order Your Druck UPS4E Today
The Druck UPS4E is a trusted electrical loop calibrator used worldwide for its precision, ease of use, and durability. Whether you’re in oil & gas, manufacturing, utilities, or process automation, this tool gives you reliable results when it matters most.
Order now and experience the accuracy and efficiency of the Druck UPS4E—your all-in-one handheld electrical loop calibrator.