Altek Model 11 Step RTD Simulator Manual

							RTD Simulator
Model 11
• Direct temperature outputInstant simulation of 11 temperature points
• 0.1°C accuracy25, 50, or 100 degree resolution
• Simple to useReplaces cumbersome decade box
• Worldwide Pt 100 Ohm RTD CurveDIN/IEC 751, Alpha=1.3850Altek Model 11 Resistance Temperature Detector
(RTD) Simulators provide 11 precise temperatures for
inputs to transmitters, recorders, controllers, alarms,
data acquisition and computer systems. The Model 11
allows 2, 3 or 4 wire connections. Factory calibration
includes compensation for the resistance of the built-
in lead wires. Conformity to the particular RTD curve
is in accordance with the latest standards for exact
temperature simulation.
Simulate temperature into any instument that
measures a Pt 100 ohm RTD based on the worldwide
DIN/IEC 751 standard curve with an alpha of 1.3850
(sometimes displayed as 0.00385 or 385). Resolution
is 25, 50 or 100 degrees, corresponding to full scale
output of 250, 500 and 1000 degrees respectively.
Positive switch selection allows quick, easy settings
for any output. Calibrated accuracy is ±0.1°C.
The low cost Model 11 is a complete compact
simulator for checkout and calibration of all RTD
instruments in the field, shop or control room.
General description  
						

							PN 1886547 Rev A April 2002
©2002 Altek Industries, Inc. Specifications subject to change without notice. 
All rights reserved. Printed in U.S.A.  
Altek products are warranted to be free from defects
in material and workmanship (excluding fuses,
batteries and leads) for a period of three years from
the date of shipment. Warranty repairs can be
obtained by returning the equipment prepaid to our
factory. Products will be replaced, repaired, or
adjusted at our option. Altek gives no other
warranties, including any implied warranty of fitness
for a particular purpose.Also, Altek shall not be liable
for any special, indirect, incidental or consequential
damages or losses arising from the sale or use of its
products.
Warranty
(Unless otherwise indicated, all specifications are referred to at an
ambient temperature of 23˚C)
Accuracy: ±0.1°C (±0.2°F)
Temperature drift:  ±0.01%/°C
Allowable excitation current:  0 to 15 milliamps, steady or intermittent
Operating temperature range:  -25 to 55°C (-10 to +130°F)
Storage temperature range:  -40 to 70°C (-40 to 180°F)
Relative humidity:  10 to 90%, non-condensing
Size:  2 1/8 x 4 x 2 1/4 inches (54 x 102 x 55 mm)
Weight:  3 ounces (0.12 kg)
Specifications
Connections
Select the Model 11 for correct temperature scale (F or C), and range.
Connect the leads tightly to the input terminals of the instrument to be
tested, the field mounted head or the junction box terminals. Set the
temperature selection switch to the desired temperature. End point
calibration temperatures of the instrument are then selected on the
Model 11 and any required adjustments are made. Intermediate points
may be selected to verify instrument linearity or check critical points.
Operating instructions
Order Model   
11-250F
11-250C
11-500F
11-500C
11-1000F
25° steps
50° steps 100° steps