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ADT685 Digital Pressure Gauge
Intrinsically Safe (with optional Datalogging)
Additel Pressure Gauge Selection Guide
| Feature | ADT681A | ADT680A | ADT680P | ADT601Ex | ADT685 | ADT686 | ADT673 |
|---|---|---|---|---|---|---|---|
| Gauge Pressure | • | • | • | • | • | • | • |
| Compound Pressure | • | • | • | • | • | • | |
| Absolute Pressure | • | • | • | • | |||
| Differential Pressure | • | • | • | • | |||
| Range | -15 to 60K psi (-1 to 4200 bar) |
-15 to 60K psi (-1 to 4200 bar) |
-15 to 60K psi (-1 to 4200 bar) |
-15 to 15K psi (-1 to 1000 bar) |
-15 to 60K psi (-1 to 4200 bar) |
-15 to 60K psi (-1 to 4200 bar) |
-15 to 60K psi (-1 to 4200 bar) |
| Available Accuracies (range dependent) |
0.02%, 0.05%, 0.1%, 0.2%FS & 0.1%RD |
0.1%, 0.2%FS | 0.02%, 0.05%, 0.1%, 0.2%FS & 0.1%RD |
0.5%FS | 0.02%, 0.05%, 0.1%, 0.2%FS & 0.1%RD |
0.02%, 0.05%, 0.1%, 0.2%FS & 0.1%RD |
0.02%, 0.05%, 0.1%, 0.2%FS & 0.1%RD |
| Digital Display | • | • | • | • | • | • | • |
| Analog Display (Fan-Shaped Indication) |
• | • | |||||
| Fully Temperature Compensation from -10°C to 50°C |
• | • | • | -20 to 50°C | • | • | • |
| Resolution | 5, 6 digits | 4, 5 digits | 4, 5 digits | 4 digits | 5 1/2 digits | 4, 5, 6 digits | 4, 5, 6 digits |
| Selectable Pressure Units | 12 & 1 customized units |
12 & 1 customized units |
12 & 1 customized units |
12 | 11 & 3 customized units |
11 & 5 customizable units |
11 & 5 customizable units |
| Backlight | • | • | • | • | • | • | • |
| Over Pressure Indication | • | • | • | • | • | • | • |
| IP67 | • | • | • | • | • | • | • |
| Intrinsically Safe | ADT681AEx | ADT680AEx | ADT680PEx | • | ADT685Ex | ||
| Communication | BLE, USB, RS232 | BLE, RS232 | BLE, RS232 | BLE | BLE, USB, RS232, RS485(optional) |
BLE, USB, RS232, RS485, WIFI(optional) |
BLE, USB, RS232, RS485, WIFI(optional) |
| Data Logging | • | • | • | • | • | • | |
| Min/Max | • | • | • | • | • | • | • |
| Built-in Leak Test | • | • | • | • | |||
| HART | • | ||||||
| Measure mA and V | • | ||||||
| 24V Loop Power | • | ||||||
| Switch Test | • | ||||||
| NIST-Traceable Certificate of Calibration | • | • | • | • | • | • | • |
| Power | 3 AA Alkaline batteries (power supply through USB is optional, adapter not for Ex) |
3 AA Alkaline batteries (External power supply through RS232 cable, adapter not for Ex) |
3 AA Alkaline batteries (External power supply through RS232 cable, adapter not for Ex) |
3 AA batteries | 3 AA batteries & 120/220V adapter is optional (adapter not for Ex) |
Rechargeable battery (120/220V adapter is optional) |
Rechargeable battery (120/220V adapter is optional) |
Calibration of your Digital Pressure Gauge
Calibration is essential for maintaining the accuracy and reliability of your digital pressure gauges. At Zedflo, we offer a complete calibration service through our in-house ISO17025 NATA accredited calibration laboratory, making us your one-stop shop for all ongoing calibration needs.
Our calibration process ensures your instruments perform to the highest standards by comparing and, where necessary, adjusting the gauge to align with known reference values. This guarantees consistent, traceable readings and long-term confidence in your pressure measurement equipment.
Applications of Digital Pressure Gauges
Digital pressure gauges are highly versatile instruments used across a wide range of industries where precision and reliability are essential. Common applications include:
Manufacturing: Monitoring and controlling pneumatic and hydraulic systems to ensure consistent process performance.
Automotive: Testing and servicing vehicle systems that rely on accurate pressure measurement for safety and efficiency.
Environmental Monitoring: Tracking atmospheric, gas, or water pressure to support environmental assessments and research.
Mining, Process, and Power Industries: Testing, calibrating, and data logging of pressure systems in demanding industrial environments.
Calibration: Serving as high-accuracy reference equipment for verifying and maintaining the performance of other pressure measurement devices.