DOT EARTH · BUSINESS SUPPLY
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Key Features:
Certified for use in Zone 0 / Class I, Division 1 hazardous locations
ATEX, IECEx, and CSA certified – ensuring maximum safety in explosive environments
Combines voltage, current, resistance, RTD, thermocouple, and frequency calibration in one device
Supports pressure calibration with external pressure modules
Integrated 24V loop power supply for transmitter testing
Fully compliant with HART protocol
Communicates with most HART-enabled field devices
Includes built-in HART device library with regular updates
4” high-resolution color touchscreen with intuitive menu navigation
Rugged IP67-rated casing built to withstand tough field conditions
Drop-resistant and glove-friendly touchscreen usability
High-capacity lithium battery provides up to 35 hours of operation
Rechargeable with intrinsically safe charging system
Built-in data logging, task scheduling, and documentation functions
Ideal for calibration procedures, traceability, and compliance reporting
Supports custom calibration templates
USB, Wi-Fi, and optional Bluetooth connectivity for syncing, updates, and communication
Easy data transfer to PC or cloud-based systems
Linux-based OS with smooth operation
Simple navigation through multiple functions and modes
Multi-lingual support for global operations
Supplied with test leads, HART resistor, USB cable, and carrying case
Compact, portable, and designed for on-site and lab use
Model: ADT227Ex-HART Type: Documenting Multifunction Process Calibrator with HART Communication Certification: Intrinsically Safe (ATEX, IECEx, CSA)
Voltage Measurement: (300V AC)
Current Measurement: input impedance < 40 Ω;
Resistance Measurement: 0.2mA
RTD Types Supported: PT10, PT50, PT100, PT200, PT500, PT1000
Thermocouple Types Supported: J, K, T, E, R, S, B, N, L, U
Cold Junction Compensation: Automatic or Manual
Pressure Measurement: Supports Additel intelligent digital pressure modules
Pressure ranges: 0.002% FS
HART Communication: Built-in HART modem
Supports universal, common practice, and device-specific commands
Online/offline configuration, loop testing, and diagnostics
USB Port: For data transfer and charging
Wi-Fi/Bluetooth: Optional depending on model variant
Display: 4.4 inch 640 x 480 mm color display capacitive screen
Interface: Touchscreen + physical keys
Operating System: Linux-based intuitive UI
Battery Type: Rechargeable Li-ion battery (included)
Battery Life: Up to 35 hours
Charging: Intrinsically safe external charger
Protection Class: IP67 (Dustproof and Waterproof)
Operating Temperature: -20°C to 50°C
Storage Temperature: -30°C to 70°C
Weight: 1.65 lb (0.75Kg)
Size: 6.97" x 4.13" x 2.04" (177 mm x 105 mm x 52 mm)
ATEX Certification: II 2 G Ex ib IIC T4 Gb
IECEx & CSA Certified
Zone 1 & Division 1 Certified for Hazardous Areas
