Model 531 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.
531-9002 Rev B 7/13/11
Specifications
General Specifications:
(Unless otherwise indicated all specifications are rated from a nominal 23 °C, 70 % RH for 1 year from calibration)
Operating Temperature Range
-20 to 60 °C (-5 to 140 °F)
Storage Temperature Range -30 to 60 °C (-22 to 140 °F)
Relative Humidity Range
10 % ≤RH ≤90 % (0 to 35 °C), Non-condensing
10 % ≤RH≤ 70 % (35 to 60 °C), Non-condensing
Battery 2 AA Alkaline
Low battery indication with nominal 1 hour of operation left
Over-voltage protection to 120 Vrms (rated for 30 seconds) or 240 Vrms (rated for 15
seconds)
Bar graph display with 1% resolution of 4-20 mA signal scale
High contrast graphic liquid crystal display with 0.45” (11.4 mm) high digits
Common Specifications for all current modes
Ranges 0.00 to 24.00 mA, 25.0 to 125.0% of 4-20 mA
≤ ± (0.05 % of Reading + 0.01 mA)
Resolution(s) 0.01 mA and 0.1 %
Source/Power and Measure 2-Wire Transmitter Specifications:
Loop compliance voltage ≥ 15 Volts or ≥ 24 Volts
Loop drive capability 1200 Ω at 20 mA for entire battery life @ 24 Volts
600 Ω at 20 mA for entire battery life @ 15 Volts
Read mA Specifications:
Overload/Current limit protection nominal ≤24 mA
2-Wire Transmitter Simulation Specifications:
Voltage burden ≤ 2V at 20 mA
Overload/Current limit protection
Loop voltage limits 2-42 VDC
Open loop or out of compliance conditions are indicated by appropriate error display
Battery life ≥ 40 hour typical
Warranty
Our equipment is guaranteed against defective material and workmanship (excluding batteries) for a period of three years from the
date of shipment. Claims under guarantee can be made by returning the equipment prepaid to our factory. The equipment will be
repaired, replaced or adjusted at our option. The liability of Practical Instrument Electronics (PIE) is restricted to that given under our
guarantee. No responsibility is accepted for damage, loss or other expense incurred through sale or use of our equipment. Under no
condition shall Practical Instrument Electronics, Inc. be liable for any special, incidental or consequential damage.
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