Practical Instrument Electronics 535 - Manual

Practical Instrument Electronics
Model 535
4-20/10-50 mA/V Loop Calibrator
Operating Instructions
82 E. Main Street Suite 3.14 · Webster, NY 14580 Tel: 585-872-9350 · Fax: 585-872-2638 [email protected] · http://www.piecal.com/
Practical Instrument Electronics, Inc. Copyright ã 2011. All rights reserved. 535-9002 Rev G 7/13/11 1-8
Basic Keypad Operations
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EZ-Check™ Switch/EZ-Step™ Pushbutton
Slide the switch to select the user stored values for calibration
points. Press the button to adjust the output by the user
defined step size. Press and hold the button to activate the
auto step/ramp mode.
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SOURCE/STEP SIZE Button
Press and release SOURCE/STEP SIZE to change source
modes. These are:
· Source Milliamps
· 2-Wire Transmitter Simulate
· Source Volts
Press and hold SOURCE/STEP SIZE to change step size.
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ON/OFF Button
Press ON/OFF to turn the Model 535 on or off.
m
UNITS/STEP TIME Button
Press and release UNITS/STEP TIME to change how current is
displayed: either in milliamperes or % of 4-20/10-50 mA. Voltage
is only displayed in volts.
Press and hold UNITS/STEP TIME to change step size.
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READ/SOAK TIME Button
Press and release READ/SOAK TIME to change read modes.
These are:
· Read Milliamps
· Power and Measure 2-Wire Transmitter
· Read Volts
Press and hold READ/SOAK TIME to change soak time.
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STORE/CLEAR Button
In any source mode:
Press STORE/CLEAR to save the current reading in the EZ-
Checkä HI or LO position. The EZ-Checkä switch must be set to HI
or LO. The display will flash “STORED” to confirm.
In any read mode:
Press STORE/CLEAR to clear the values saved in the EZ-Checkä
HI and LO positions. The display will flash “CLEARED” to confirm.
‡
EZ-Dial™ Knob
Turn the EZ-Dialä knob to adjust the output level. Press and turn
to adjust 100X faster.