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Item Number:



Weight: 1.5 lbs (0.7 kg)
Length: 8.25 Inches (21 cm)
Width: 7.5 Inches (19 cm)
Height: 3.5 Inches (8.5 cm)

PAR-809B Variable Resistance Reference

Test the resistance range and performance of your instruments

The PAR-809B is a precision resistance reference employing 31 ±2% tolerance resistors for accuracy. It is designed to functionally test the PASS/FAIL resistance range and performance of wrist strap and footwear checkers, megohmmeters, monitoring systems, meters and other indicating devices, to both US and International Standards.

Proper use of the PAR-809B ensures accurate, functional performance confirmation of critical ESD control tools.

Resistance in Ohms (±2%) When Measured at 10 volts:

*1.00x100 7.75x105 3.70x107
*1.00x102 8.40x105 4.50x107
9.50x102 9.50x105 5.50x107
1.05x103 1.10x106 9.00x107
9.50x103 4.75x106 1.10x108
1.05x104 5.25x106 9.00x108
9.50x104 9.00x106 1.10x109
1.05x105 9.50x106 9.00x109
4.70x105 1.05x107 1.10x1010
5.30x105 1.10x107 3.30x107
7.10x105 3.30x107  
* Verification resistors are measured at <10 volts.

Battery Buss ON/OFF, Red Push Button Operating System ON/OFF, 2 Yellow Push Buttons Select Resistance DOWN/UP is select resistance.

2 Banana receptacles at side of case (Used to connect device under test in series with selected resistance)

1 RED 3-1/2 Digit LED Integer Window; 1 Red 2 digit LED Exponent Window -- Displays 31 position values in scientific notation

4 each “AA” 1-1/2 volt batteries (included). Batteries do not influence performance of the resistor references.

Case Size:
5.5" L x 3.5" W x 2.25" H

Length: 5.5" (14 cm)
Width: 3.5" (8.9 cm)
Height: 2.25" (5.7 cm)

Test Leads
Length: 36" (91.4 cm) each leads

16 oz.

2% Tolerance Resistors - All positions documented

Auto shut off after 5 minutes of non use

Technical Documents:
» PAR-809B Data Sheet

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