The Ametek JOFRA ASC301 Signal Calibrator provides the functionality and accuracy you expect from a laboratory calibration system,
but compact enough to fit into the tool box and be operated with one hand for easy field calibration.
The ASC301 is more than a signal calibrator. Combined with JOFRA's APM external pressure modules or a JOFRA dry-block calibrator, it will
calibrate pressure and temperature, and used together with JOFRACAL even document it as well. For Workshop use a DC power supply is available.
The full numerical keypad with a series of function keys and the cursor keys, provide a simple and quick user interface. The new ClearBrite™
graphical display offer the best visibility.
The high accuracy of ASC301 has not been achieved on account of fragile measurements or source circuitry, the ASC301 has fuse less protection
all the way up to 250 VAC – might save you a calibrator, lowers cost of ownership.
The ASC301 offers simultaneous input and output. This means that you can calibrate and adjust a temperature
transmitter on the table with no other necessary instruments. Source the sensor signal loop and input the mA from the
transmitter. If you select mA Loop the ASC301 will also supply the 24 VDC for the loop. In the display you will see
both your output temperature and the return mA from the transmitter. Enter the zero and full scale values and you
can make quick 10% or 25% steps or go direct to zero or full span values. The ASC301 has dedicated keys for this
operation so adjustment on the transmitter is made easier.
The ASC301 offers the possibility to characterize an RTD sensor. Use this feature to add a missing special curve or
to characterize a reference RTD. If you choose a reference RTD from the accurate and stable STS100 temperature sensors,
they will be delivered with a traceable calibration certificate including the necessary Van Duesen coefficients. Enter the figures
into the ASC301 and you have a temperature reference. Complement this with a JOFRA dry-block temperature calibrator and your
ASC301 becomes the heart of your portable calibration lab.
If you by mistake connect the ASC301 to the mains supply, the instrument is protected with a fuseless protection
feature. This feature protects the instrument on up to 250 VAC on any combination of connections made on the test
lead connectors and prevents expensive repairs and recalibration of the instrument.
