Model 532 Operating Instructions
82 E. Main Street Suite 3.14 • Webster, NY 14580
Tel: 585-872-9350 • Fax: 585-872-2638
sales@piecal.com • http://www.piecal.com/
Practical Instrument Electronics, Inc. Copyright 2011. All rights reserved.
532-9002 Rev C 7/13/11
2-8
B. Model 532 Configuration
Press the EZ-Dial Knob while turning the Model 532 on to access the
configuration mode. Turn the EZ-Dial Knob to select configuration items.
Press the EZ-Dial Knob to change configuration items. Turn the unit off or
just wait approximately 8 seconds to exit the configuration mode.
Auto Off - ON (default)/OFF
Auto Off is ON, by default, to save battery life by turning the unit off after 30 minutes of inactivity. Turn
Auto Off to OFF to prevent automatic shutdown. This is typically useful for manual loading or continuous
use.
EZ-Step - ON/OFF (default)
If EZ-Step is ON manual and automatic stepping/ramping is available. If EZ-Step is OFF the EZ-Step
pushbutton will be disabled and the step direction indicator will not be displayed.
HART® Compatibility Mode - ON/OFF (default)
The Model 532 has a HART® compatibility mode. This mode is useful when the devices being powered
communicate using the HART® protocol. In this mode the Model 532 connects a 250 Ω load resistor in
series with the output in both Source and Power Measure 2-Wire transmitter modes. This eliminates the
requirement of an external 250 Ω load resistor. This resistor is typically shown in connection diagrams and
manuals for HART® devices.
If HART® Compatibility Mode is ON, a 250 Ω load resistor is automatically switched in series with the
output in Source and Power Measure 2-Wire Transmitter modes. The output compliance with HART®
Compatibility Mode ON is 950 Ω at 20 mA.
If HART® Compatibility Mode is OFF there is no 250 Ω load resistor in series with the output. This will
increase the output compliance voltage to drive 1200 Ω at 20 mA.
EZ-Check HI/LO Readings ON/OFF (default)
If the EZ-Check HI/LO Readings option is ON, the highest and lowest readings will automatically be
saved in the HI and LO EZ-Check™ positions.
If this option is OFF the HI and LO positions will show the current reading.
Loop Diagnostic ON (default)/OFF
Loop Diagnostic may be turned off to prevent entry into diagnostic mode. This may make the Model 532
simpler to operate by eliminating accidental entry into diagnostic mode.
Factory Reset ON/OFF (default)
If Factory Reset is ON, the unit will restore all factory defaults when the Model 532 is turned OFF and back
ON. This will reset any changes made in the Model 532 Configuration options, returning the unit to its
simplest factory configuration.
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