Practical Instrument Electronics 522 Rev C - Manual (Page 2)

Model 522 Operating Instructions
841 Holt Road #1 • Webster, NY 14580 Tel: 585-872-9350 • Fax: 585-872-2638 [email protected] • http://www.piecal.com/
Practical Instrument Electronics, Inc. Copyright © 2003. All rights reserved. 522-9002 5/20/05 2-4
Model 522 Configuration
Double-click the EZ-Dial™ Knob while in source or READ mode to enter the configuration menu.
Hold the EZ-Dial™ Knob while turning the unit on to bypass the “PRESS EZ-DIAL KNOB FOR CONFIGURATION” message altogether.
Model 522 Configuration Menu
Auto Off ON/OFF
If Auto Off is ON, the unit will turn off after 30 minutes to save battery life, if there is no user activity. If Auto Off is OFF the unit will
stay on until it is turned off from the keypad. This is typically useful for manual loading or continuous use.
Display Units °C/°F
Pressing the EZ-Dial™ Knob to toggles between °C or °F
T/C B, E, J, K, N, R, S, T, or mV
To change T/C type, press the EZ-Dial™ Knob. Turn the EZ-Dial™ Knob to scroll through the list of available types. Press again to
save and return to the configuration menu.
READ Mode
Slide the SOURCE/OFF/READ Switch to READ for direct thermocouple input. The Model 522 displays temperature corresponding
to input for the selected thermocouple type.
Connect the T/C sensor. “OPEN T/C” will be displayed until properly connected.
Slide the EZ-Check™ Switch to HI and LO to recall maximum and minimum saved readings. Press and hold the EZ-Dial™ Knob to
clear saved readings. The display flashes “CLEARED” as a confirmation.
Double-click the EZ-Dial™ Knob to return to the configuration menu.
Turning the EZ-Dial™ Knob has no effect in READ mode.
Other Display Indications:
OVERRANGE or UNDERRANGE The millivoltage input exceeds the selected thermocouple type’s range.
OPEN T/C No thermocouple is connected, or the connected thermocouple exhibits > 10 kΩ.
SOURCE Mode
Slide the SOURCE/OFF/READ Switch to SOURCE for direct thermocouple output. The Model 522 outputs voltage corresponding to
temperature for the selected thermocouple type.
Slide the EZ-Check Switch to HI or LO to recall stored settings. While in the HI or LO position, dial a new setting and press the EZ-
Dial™ Knob to store. The DIAL position always holds the last setting dialed there.
Turn the EZ-Dial™ Knob to change temperature, push and turn for faster dialing.
Double-click the EZ-Dial™ Knob to return to the configuration menu.