Graphical Interface for PC

Remote Interfaces

1908P - comprehensive bus interfaces

To meet a wider variety of system needs, the 1908P adds a

comprehensive array of digital bus interfaces. USB, RS-232

and LAN (Ethernet) with LXI support are all included. GPIB

can be added as an option.

(Note that operation of the GPIB, RS232 and LAN interfaces

require the meter to be powered from an AC line.)

The GPIB interface is compliant with

IEEE-488.1 and IEEE-488.2. GPIB

remains a widely used interface for

system applications.

An RS-232/RS-423 interface is provided

for use with legacy systems. This type

of serial interface remains in common

useage and is perfectly satisfactory for

lower speed applications.

USB provides a simple and convenient

means of connection to a PC and

is particularly appropriate for small

system use. A USB driver is provided

which supports Windows 2000 and

above including Win 8 and 10.

The LAN interface uses a standard

10/100 base-T Ethernet hardware

connection with ICMP and TCP/IP

Protocol for connection to a Local Area

Network or direct connection to a

single PC. This interface supports LXI

and is highly appropriate for system

use because of its scalable nature and

low cost interconnection.

The LAN interface is LXI compliant.

LXI (LAN eXtensions for

Instrumentation) is the next-generation,

LAN-based modular architecture

standard for automated test systems

managed by the LXI Consortium, and

is expected to become the successor to

GPIB in many systems.

For more information on LXI and how it replaces GPIB, or

operates along side it, go to: www.aimtti.com/go/lxi

IVI Driver

An IVI driver for Windows* is included. This provides support

for common high-level applications such as LabView*,

LabWindows*, and Keysight VEE*.

* LabView and LabWindows are trademarks of National Instruments.

Keysight VEE is a trademark of Keysight Technologies.

Windows is a trademark of Microsoft.

Percentage deviation ( %)

This function enables the meter to display the percentage amount by

which the reading differs from a nominal value chosen by the user.

It is invaluable for measuring tolerance or stability.

Min-Max storage

The Min-Max function stores the highest and lowest values of a set

of readings.

This facility has many uses such as checking for power supply glitches

and recording peak temperature excursions.

Power measurement in Watts or VA

In addition to dBs, power can be measured in Watts or VA.

For resistive loads the Watts function calculates V2/R for any load

resistance between 1W and 10kW, a particularly useful function for

audio measurements.

The VA function makes use of the dual measurement capability and

displays the product of voltage and current.

1908 - USB interface

The 1908 incorporates a USB interface for remote control

and readback.

The interface is powered from the controlling device enabling

the meter to operate from batteries without additional

power drain.

Safety | Calibration

Comprehensive safety protection

The meters incorporate extensive protection against damage from

accidental overloads on all ranges including 10 Amps.

They also meet the stringent safety requirements of EN61010-1 2010

and EN61010-2-030 2010 for measurements up to 300v (Cat. III),

600V (Cat. II) or 100Vdc/750Vac (for circuits isolated from AC line)

Kensington Security Slot

A Kensington® security slot is incorporatedinto the

rear panel.

This enables the instrument to be secured using the

widely used Kensington cable system.

Closed case calibration

The meter stores its calibration constants in protected memory and

can be recalibrated without ever opening the case.

Both the 1908 and 1908P are supplied with a Windows* based application

called “1908-PC Link” that provides a graphical user interface (GUI) for

remote control of the meter from a PC.

Connection can be via USB, RS-232, or LAN (Ethernet).

The application provides remote access to the instrument using a point-

and-click interface arranged similarly to the actual instrument.

Measurement function can be selected for both the main and secondary

displays, along with measurement range. The display includes an analog

bar-graph with minimum and maximum reading markers.

A logger function enables both measurements to be recorded at set time

intervals and displayed in both graphical and tabular views. The logged

data can be exported to a CSV file.

The application also provides a means of downloading the contents of the

internal logger of the meter itself, and exporting it to a CSV file.

1908 rear panel

(Protective buffer removed) GPIB optional.

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 from an opto-isolated external trigger

input, or from the digital interfaces.

External Triggering

An external trigger connector is provided on the rear panel.

This provides for external triggering of measurement hold or

measurement log.

An opto-isolated open collector output is available for

synchronisation with the measurement update.

Capabilities in detail