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1908 Series

1908 Series

Product catalog summary

Overview: The AIM & Thurlby Thandar Instruments 1908 and 1908P are versatile 5½ digit multimeters designed for precision and portability, featuring rechargeable batteries, dual displays, and a variety of measurement functions including frequency, capacitance, and temperature.

Key Features:

High accuracy and resolution with 0.02% accuracy and capabilities down to 1μV and 10pF.
Dual display for simultaneous parameter measurement.
Rechargeable batteries provide up to 35 hours of operation.
Comprehensive mathematical and data logging functions.
Multiple interfaces including USB, RS232, and optional GPIB and LAN for 1908P.

Measurement Capabilities:

DC Voltage: 100mV to 1000V with 0.02% accuracy.
AC Voltage (True RMS): 100mV to 750V with frequency-dependent accuracy.
Resistance: 2-wire or 4-wire, 100Ω to 10MΩ.
DC and AC Current: 10mA to 10A.
Frequency: 10Hz to 120kHz.
Capacitance: Up to 120μF with 2% accuracy.
Temperature: Linearised for PT100 and PT1000 RTDs.

Advanced Functions:

Linear scaling and offset for transducer outputs.
dB measurements for AC voltages.
Pass/fail testing with limits comparison.
Min-Max storage for peak values.
Power measurement in Watts or VA.

Interfaces and Software:

1908P includes USB, RS232, and LAN interfaces, with optional GPIB.
IVI driver for Windows supports LabView, LabWindows, and Keysight VEE.
1908-PC Link software for remote control and data logging.

Safety and Calibration:

Meets EN61010 safety standards.
Kensington Security Slot for physical security.
Closed case calibration with protected memory.

Rigger (TTL/CMOS):

Connection via terminal block on rear panel.
Input requires >+3V to trigger, max 10V.
Output is opto-isolated, conducts for 250ms upon trigger completion.

Display:

High contrast backlit transflective LCD with main and secondary displays.
120,000 counts scale length for most parameters.
Annunciators for all ranges and functions.

Computing Functions:

Null, W Null, Hold/T-Hold, dB, AC plus DC, % Deviation, Ax+b, Limits, Min/Max, Power, VA, and Data Logger functions.

Digital Interfaces:

1908: USB 2.0.
1908P: RS232, USB 2.0, LAN, optional GPIB.

Software Supplied:

IVI Driver for Windows, LV/CVI Driver, USB Driver.

Power Requirements:

AC Input: 220V-240V or 110-120V AC, 50/60Hz.
Batteries: Nickel Metal Hydride, >20 hours with backlight, >35 hours without.

General:

Operating Range: +5°C to +40°C, 20% to 80% RH.
Storage Range: -20°C to +60°C.
Indoor use up to 2000m altitude, Pollution Degree 2.
Complies with EN61010 and EN61326-1 standards.
Size and weight specifications provided.

Catalog excerpts

AIM & THURLBY THANDAR INSTRUMENTS 1908 | 1908P 5½ digit high performance bench/portable multimeter High accuracy and resolution: 0.02%, 1μV, 1mW, 100nA, 0.01Hz, 10pF Internal rechargeable batteries for true portability Dual display and dual measurement capability Frequency, capacitance and temperature measurements Wide range of maths and data logging functions USB, RS232, GPIB* and LAN (LXI) interfaces aimtti.com aimtti.us

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1908 and 1908P 5½ digit bench/portable multimeters affordable, portable precision Automatic or Manual ranging Quick response auto-ranging is provided for all measurement parameters ensuring the best possible resolution at all times. Alternatively manual ranging can be selected. The secondary display can show the range value, giving greater clarity. Wideband True RMS AC True RMS AC gives accurate measurements regardless of the waveform shape. The wide bandwidth attenuator provides high accuracy within the audio band and gives extended response to avoid errors when measuring switching waveforms....

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Remote Interfaces Automatic data logging The 1908 can store up to 500 readings at any required time interval from 1 reading per second up to 1 reading every 3 hours. A simple recall sequence allows the readings to be scrolled onto the display whenever required. Alternatively results can be downloaded using the remote interfaces. As a result, tedious time related measurement sequences can be handled automatically without disrupting your work. Manual storage of readings is also available, eliminating the need for paper and pencil when making a series of measurements. Storage can also be triggered...

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Technical Specifications - 1908 and 1908P (continued) MEASUREMENT PARAMETERS & ACCURACY EXTERNAL REMOTE TRIGGER (TTL/CMOS) Accuracies apply for 1 year 19°C to 25°C. Temperature coefficient outside these limits is <0.1 x quoted range accuracy per °C. Scale Length The scale length is 120,000 counts (unless otherwise stated) giving a maximum measured value for each range of 119999. Thus for the 100V range the maximum measured value is 119.999 volts Accuracies are quoted in terms of a percentage of the measured value plus a number of least significant digits. Reading Rate Varies with measurement...

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1908 Series

1908 Series

Catalog excerpts

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