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Simulate 2-wire transmitters to calibrate receivers,
recorders, controllers, indicators and computers. Loop
power eliminates the need for batteries. Loop current is
clamped at the key value you select. Accuracy is
±0.08% of 4 to 20mA, even
with changes in load and supply voltage.
Switch settings of 0, 25, 50, 75
and 100% give you fast, full range checkout of
instrument or system. The single switch and palm-sized
case have been designed for simple, one handed
operation. Just clip the built-in leads to the 2-wire
terminals in the field, junction box or control room.
When you check out receivers,
recorders or controllers in a 2-wire 4 to 20mA loop,
simply disconnect the 2-wire transmitter and hook up a
Model 46. Flip a switch to get instant full scale and
zero outputs. The calibrator operates like a 2-wire
transmitter by modulating the external power supply
voltage into a 4 to 20mA signal.
The Model 46 receives all of its
operating power from the loop. This lets you operate
continuously for days when long term loop testing is
required. Use it as a manual loading station when a
controller needs repair or replacement. Minimize process
shutdowns installing a new controller. |
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