Simplicity of operation is their key – no keypads or complicated selections. Engineers will be able to pick them up and get to work immediately. Just select 4 – 20mA, or 10V loop, and TxSim, RxTest, RxSim or TxTest. Both have internal loop drive supplies, which can be used to power the loop if required.

Loop-Mate 1 is the simulator and acts as a source to provide the loop signals, 4 – 20mA or 0 – 10V. No complicated selection of the output, just operate up/down buttons to increase or decrease the signal. There are 7 set-points, 0%, 10%, 25%, 50%, 75%, 90%, 100%. Each is indicated on a high brightness LED and an audible beep sounds as you step between them. Auto-stepping mode (adjustable rate) allows Loop-Mate1 to be left connected stepping up and down. The engineer can then move to another location to check (using Loop-Mate 2) that the signal is arriving correctly and is within specification.

Loop-Mate 2 is a dedicated loop signal indicator, just as easy to operate. Once again select the loop type, 4 – 20mA, or 0 – 10V, and whether you want the display in direct units, or % of span. The LCD display shows the signal to an accuracy of 0.05% either in mA, V, or % of span.

Both units are powered by a single standard PP3 battery that gives up to 40 hours continuous use.