Ametek Crystal Pressure nVision User Manual

Modules  25
nVision Operation Manual
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CURRENT, VOLTAGE, AND SWITCH TEST MA20 MODULE INSTRUCTIONS
The nVision MA20 module has three operational modes: current measurement, voltage measurement, and switch test. Each mode may be selected via the
Setup menu, and can only be operated one at a time.
To ensure proper connection to the MA20 Module use the following strategy:
1 Ensure that power is o on the circuit that you are about to measure.
2 Ensure your nVision is in correct MA20 Mode: mA, %4-20mA, %10-50mA, Voltage, or Switch Test.
3 Insert the Negative (black) 2mm lead jack to the proper location (black terminal) on the MA20 module. Connect the other end of the black lead to the
appropriate terminal of the source.
4
Insert the Positive (red) 2mm lead jack to the proper location (red terminal) on the MA20 module. Connect the other end of the red lead to the appropriate
terminal of the source.
5 Power up circuit and measure or record the readings as appropriate.
6 Never change modes or electrical sources without rst removing the nVision from the circuit. Failure to do so may damage the nVision.
!
WARNINGS: The following warnings apply to the MA20 module:
•
Never install two (2) MA20 modules simultaneously. This conguration may permanently damage your nVision.
•
Never exceed the maximum specied voltage or current ratings on the MA20 inputs. Doing so may permanently damage the MA20 module.
•
Check the test leads for continuity before using. Replace damaged test leads. Do not use the probes if they are cracked, have damaged insulation,
exposed metal, or high resistance.
•
Always remove the test leads from the module before opening the battery compartment.
•
When using test lead probes, always make sure your ngers are behind the nger guards on the probes.
•
Never connect more than two (2) test leads to a MA20 module at a time.
Current Mode
The nVision is capable of measuring current in three dierent modes. They are:
•
mA: Measured current is displayed (mA). The module is capable of measuring inputs up to 55mA
•
4–20%: Current is displayed as a percentage of the 4–20mA current range, where 4mA = 0%, and 20mA = 100%
•
10–50%: Current is displayed as a percentage of the 10–50mA current range, where 10mA = 0%, and 50mA = 100%

Ametek Crystal Pressure nVision Specifications

General

Brand	Ametek
Model	Crystal Pressure nVision
Category	Voice Recorder
Language	English