825-J Signal Calibrator, Calibration Signal for Industrial Automation Systems (with 0.075% High Accuracy)
Introduction
A signal calibrator is a precision instrument used to generate and measure standard electrical signals commonly found in industrial automation systems. These signals are typically used by transmitters, controllers, recorders, and PLC input modules.
In modern process industries, signal calibration is essential for ensuring transmitter accuracy, verifying loop integrity, diagnosing signal deviation, and maintaining control stability. The 825-J signal calibrator is designed to serve as a practical calibration tool for professionals who require consistent, repeatable performance in industrial environments.
Working principle
A signal calibrator operates by generating highly stable reference signals or by accurately measuring incoming process signals.
- When used in source mode, the calibrator outputs a precise electrical signal that simulates a transmitter or sensor. This allows technicians to verify the response of controllers, indicators, or PLC input modules.
- When used in measurement mode, the device reads and analyzes the signal from field instruments, comparing the measured value to expected performance parameters.
High-precision internal reference circuitry ensures signal stability, while digital processing maintains repeatability and minimizes drift. The accuracy rating (0.075%) indicates a high level of measurement reliability suitable for professional industrial calibration tasks.
Key features
The 825-J signal calibrator is engineered to provide dependable performance for industrial calibration tasks, combining precision, stability, and portability to support efficient field and laboratory verification.
- High Accuracy up to 0.075%: Delivers precise signal generation and measurement, enabling reliable verification of transmitters, controllers, and signal loops in critical industrial applications.
- Reliable Signal Simulation and Measurement: Supports accurate output and input verification, helping technicians efficiently test, diagnose, and validate process instrumentation.
- Portable and Field-Ready Design: Compact and easy to carry, making it suitable for on-site commissioning, routine maintenance, and troubleshooting in various industrial environments.
- Stable and Consistent Performance: Designed with stable internal circuitry to ensure repeatable calibration results, reducing uncertainty in signal verification.
- Suitable for Industrial Automation Applications: Provides a practical calibration solution for use in process control systems across manufacturing, utilities, and engineering service environments.
Specification
| General Specifications | Operating temperature | -10℃~55℃ |
| Storage temperature | -20℃~70℃ | |
| Relative Humidity (％RH operating without condensation) | 90%(10℃~30℃) | |
| 75%(30℃~40℃) | ||
| 45%(40℃~50℃) | ||
| 35%(50℃~55℃) | ||
| Uncontrolled<10℃ | ||
| EMC | EN55022, EN55024 | |
| Vibration | Random, 2g, 5 to 500Hz | |
| Concussion | 30g, 11ms, half sine bow wave | |
| Power requirement | 4 AA Ni-MH, Ni-Cd batteries | |
| Size | 215mm×109mm×44.5mm | |
| Weight | About 500g |
| Resistance | Range | Accuracy | |
| 4-wire | 2-, 3-wire | ||
| Accuracy | Accuracy | ||
| Measurement | (0~400)Ω | ±0.1Ω | ±0.15Ω |
| (0.4~1.5)kΩ | ±0.5Ω | ±1.0Ω | |
| (1.5~3.2)kΩ | ±1.0Ω | ±1.5Ω | |
| Excitation Current：0.5mAClear of resistance before measuring according to ‘10.4 Clear of Resistance and RTDs’.*3-wire: Assumes matched leads with a total resistance not exceeding 100Ω.Resolution (0~1000)Ω: 0.01Ω;(1.0~3.2)kΩ: 0.1Ω. | |||
| DC Voltage | Range | Accuracy |
| Measurement | (0~100)mVDC(Upper display) | ±0.02% |
| (0~30)VDC(Upper display) | ±0.02% | |
| (0~100)mVDC(Lower display) | ±0.02% | |
| (0~20)VDC(Lower display) | ±0.02% | |
| Source | (0~100)mVDC | ±0.02% |
| (0~10)VDC | ±0.02% |
Applications
The 825-J signal calibrator is widely used in industries where precise control and measurement integrity are essential:
1. Process Automation Systems
This signal calibrator is used for validating transmitters, controllers, and input modules during installation and routine maintenance.
2. Water & Wastewater Treatment
This signal calibrator supports calibration of flow transmitters, pressure sensors, and analytical instruments in water or wastewater treatment projects to ensure regulatory compliance.
3. Manufacturing & Industrial Production
This 825J signal calibrator ensures production stability by verifying instrumentation accuracy in control loops.
4. Power & Energy Facilities
This 825J signal calibrator maintains operational safety by testing measurement and controlling circuits.
5. Instrument Service & Maintenance Teams
This 825J signal calibrator provides a portable solution for field diagnostics and rapid troubleshooting.
