Voltage data-logger ADT260EX

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Overview
The ADT260EX from Additel is an intrinsically safe portable multi-channel reference data logger providing up to 8 measurement channels for pressure, temperature (optional RTD probes), barometric pressure and electrical measurements. It combines data acquisition, a color touchscreen display and Bluetooth and USB communication in a single instrument.

Key features

• Up to 8 measurement channels
• Intrinsic safety (ATEX, IECEx, CSA, UKCA certifications)
• Field‑swappable pressure module
• Data logging with real‑time trend graphing
• Support for hydrostatic and leak testing
• Transflective color touchscreen
• Integrated barometer
• Optional RTD probes
• Bluetooth and USB connectivity
• Compatible with Additel Link mobile app

Detailed description
The ADT260EX delivers large multi‑parameter automatic logging capacity, trend curve display, instantaneous observation and statistical analysis. Results are stored onboard and viewable locally. Storage capacity reaches up to 10 million readings (single channel) with a configurable logging interval from 0.1 s to 9999 s. Its wide compatibility and intrinsic safety make it suitable for petrochemical environments, refineries, chemical plants, pharmaceutical industries and routine calibration applications.

Channel configuration (8 combinations)
Channel 1: Integrated digital pressure module, field‑swappable
Channel 2: Integrated user‑calibratable barometer
Channels 3 & 4: Inputs for external digital pressure modules
Channel 5: Calculated simulated differential pressure from channels 3 & 4
Channels 6 & 7: Temperature measurement (supports 2, 3 or 4‑wire RTD sensors)
Channel 8: Electrical measurement (current, voltage, frequency, pulse) or switch test; built‑in loop power

Intrinsic safety
The ADT260EX is certified Ex ia IIC T4 Ga and holds ATEX, IECEx, CSA and UKCA approvals. It can be used in potentially explosive atmospheres (offshore platforms, pumping stations, chemical installations, etc.).

Connections and visuals
Connectivity for internal and external pressure modules, 4 mm banana jacks for some inputs, Lemo‑style connectors for external modules. The device is shown with different module, probe and accessory configurations (connectors, side/rear views, screen menus).

Functional specifications (extracts)
RTD measurement | 2, 3 or 4‑wire selectable; units °C, °F, K or ohms
Filtering | Moving average filter (sample 1 ~ 50); 1st order linear filter (coefficient 0.01 ~ 1)
Switch test (pressure switch) | Measurement value displayed at state change; stores last 8 changes
Pressure tare | Set via user interface
Stability indicator | Time and criteria selectable by user
Power management | Auto backlight off, auto power off

General specifications (extracts)
Input channels | Top: 2 RTD channels, 1 electrical signal channel (4 mm banana jacks); right side: 2 channels for external pressure module; bottom: integrated pressure module (ADT158Ex); internal: integrated barometric sensor
Barometer accuracy | ±55 Pa
Measurement rate | mV, V, mA & frequency and RTD: 3 samples/sec; pressure module: 1~10 samples/sec (selectable, 3 default); barometer: 1 sample/sec
Data storage | Interval 0.1 to 9999 s; up to 10 million readings (single channel)
Power | 4000 mAh intrinsically safe Li‑ion battery (14.4 Wh); charge 6–8 h; typical runtime ~100 h in measurement mode
Environment | Operating temperature -20 °C to 50 °C; storage -20 °C to 70 °C; humidity 0% to 95% RH non‑condensing; altitude 3000 m
Warm‑up time | 10 min
Port voltage protection | 30 V max
Ingress/drop | IP67; 1 m drop tested
Communication | Isolated USB Type‑C (device), Bluetooth
Display | 4.4" transflective capacitive color touchscreen, LED backlight
Size | 177 mm x 105 mm x 52 mm (without ADT158Ex bottom holder)
Weight | 0.75 kg
Warranty | 1 year

Electrical specifications (extracts)
RTD measurement accuracy | 0~400 Ω: 0.01 % reading + 0.005 % full scale (resolution 1 mΩ); excitation current 1 mA (accuracy for 4‑wire probes; add 10 mΩ for 3‑wire, 50 mΩ for 2‑wire)
Voltage measurement | ±300 mV: 0.015 % RDG + 0.005 % FS (resolution 1 μV, input impedance >100 MΩ); ±30 V: 0.015 % RDG + 0.005 % FS (resolution 0.1 mV, impedance >1 MΩ)
Current measurement | ±30 mA: 0.015 % RDG + 0.005 % FS (resolution 0.1 μA; impedance <40 Ω)
Frequency measurement | 0.01 ~ 50000 Hz (auto): 0.005 % RDG + 2 digits; auto resolution to 6 digits; min threshold 2.5 V
Pressure switch measurement | Inspection voltage 3 ~ 30 V; response speed < 10 ms; supports dry contacts
Pulse counting | 0 ~ 9 999 999; rising/falling edge; min threshold 2.5 V
Loop power | 20 V ±10%; max output impedance 320 Ω; max drive current 25 mA

Pressure (extracts)
Pressure resolution | 4, 5 or 6 digits (selectable)
Temperature compensation | -10 °C ~ 50 °C
Pressure module types | Integrated module ADT158Ex; external module ADT161Ex (detailed specs on their respective datasheets)
Example ranges (reference) | GP2: 2 psi (0.16 bar) accuracy 0.05 % FS; GP10: 10 psi (0.7 bar) accuracy 0.02 % FS; GP20K: 20000 psi (1400 bar) accuracy 0.05 % FS (full table of ranges and accuracies in the product datasheet)

Remarks
Supplied with mains adapter, rechargeable Li‑ion battery, test leads, strap, ISO 17025 calibration certificate (see configuration and optional accessories). Optional modules and RTD probes of various lengths and carrying cases are available.

Features / technical specifications (list)

• Commercial model: ADT260EX
• Brand: Additel
• Channels: up to 8 configurable channels (pressure, barometer, external modules, RTD, electrical signals)
• Logging capacity: up to 10 million readings (single channel)
• Logging interval: 0.1 s to 9999 s
• Battery: intrinsically safe Li‑ion 4000 mAh (14.4 Wh); typical runtime ~100 h; charging 6–8 h
• Intrinsic safety: Ex ia IIC T4 Ga; ATEX, IECEx, CSA, UKCA certified
• Ingress protection: IP67; 1 m drop tested
• Display: 4.4" transflective capacitive color touchscreen
• Communication: Bluetooth, isolated USB Type‑C
• RTD accuracy: 0.01 % RDG + 0.005 % FS (4‑wire probes)
• Measures voltage/current/frequency/pulses/supports pressure switch and built‑in loop power
• Operating temperature: -20 °C to +50 °C
• Size: 177 x 105 x 52 mm (without holder)
• Weight: 0.75 kg
• Warranty: 1 year
• Included accessories: mains adapter, battery, test leads, strap, ISO 17025 calibration certificate
• Options: ADT158Ex (integrated) and ADT161Ex (external) modules, AM1602 RTD probes (various lengths), connection cables, hard or soft carrying cases, calibration software