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PAS-853B Wide Range Ohmmeter

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Wide Range Resistance Meter Designed to Support ANSI/ESD S20.20 Program Standard

The PAS-853B is a wide range ohmmeter designed specifically for ESD Plant Auditors who must make many measurements quickly while supporting ANSI/ESD S20.20 Program Standard and periodic verification requirements. The PAS-853B performs in accordance with standard resistance measurement practices outlined in ANSI/ESD 541 Packaging and meets all audit requirements of ESD TR53.

 
    

Variable & Constant test voltages
  • <10 Volts Variable from 0.01 to 9.9 x 103 ohms
  • 10 Volts ± <0.5V (±<5% Constant Voltage) from 1.0 x 104 to 9.99 x 105 ohms
  • 100 Volts ± <5V (±<5% Constant Voltage) from 1.0 x 106 to 9.99 x 1012 ohms
     

Features:

  • Wide Resistance Measurement Range from 0.01 ohm to 9.99 x 1012 ohms
  • Nominal Full Range Tolerance Averages <±5%
  • Fully Automatic Resistance Range, Test Voltage and Electrification Period control
  • Automatic or Continuous Electrification Control
  • Rugged High Performance 80 inches (200cm) Test Leads
  • Powered by one long lasting 9V alkaline battery
  • Large, easy to read LCD Display
  • Meets requirements of ESD Association Standards for material and audit resistance measurement requirements
  • Certificate of Calibration Traceable to NIST included


Technical Data

PAS-853B
 Controls   ON/OFF Battery Bus Cut-off
 Slide Swtch ON SIDE OF CASE
 ON: Energizes instrument and LCD displays Software Version then GO A with AUTO indification (Default)
 OFF: Isolates battery and DC voltage from instrument controls and circuit. Use for transport and storage.
 TEST Pad   With Test Leads installed: Press once & Release. Measurements performed automatically
 In conjunction with MODE changes from Auto operation to Continuous
 MODE Pad 

 Steps through Auto/Voltage ranges with each press of MODE pad:

  • AUTO: Default automatic resistance range & Voltage control
  • <10V: Manual Operation 0.01 to ≤10V Test Voltage;

       - Resistance Range : 0.01E-1 to 9.99e9Ω 

  • 10V: Manual Operation at 10V (Nominal, Semi-Constant)

       - Resistance Range: 0.98E4 to 9.99E10Ω

  • 100V: Manual Operation at 100V (±<5V) Constant Voltage

       - Resistance Range: 0.98E6 to 9.99E12Ω
       - When data in HOLD, press MODE to terminate HOLD without changing operational mode
       - Press MODE with TEST to change from Auto to Continuous
       - Used to measure lead resistance (NULL)
       - Used by Prostat Authorized Technicians for Voltage Calibration
 Connections   Positive (+): Test Voltage (RED) - Supplies test voltage to electrodes/fixtures
 Negative (-): Current sensing (BLACK) - Conducts current from electrode, fixtures or Ground to instrument
 Chassis (): Shielding connection to chassis (WHITE) - Reduces transmitted energy and effect on current measurement
 Note: ¾ inch spacing between RED and BLACK accommodates dual banana BNC adapters
 Indication

 Colored LED's indicate instrument operational MODE and Test Voltage (YELLOW) used for the current measurement,
 as well as measurement completion (GREEN LED).

  • AUTO: ON during automatic operations; OFF in Manual mode
  • <10V:
  • 10V
  • 100V
  • GREEN LED: Measurement hold
 Typical   Tolerances  1Nominal performance by range:
 0.01E- 1 -- 1.0E 0 Ω  <±10%,±2 Counts
 1.0E 0 - 9.99E10 Ω    <±2%,±2 Counts
 1.0E11 -- 9.99E12 Ω  <±10%,±4 Counts
 Test Voltages  Automatically selected and controlled in AUTO mode. May be manually selected by pressing MODE pad in the
 following order:

 <10V Variable based on resistance load
 - Provides 0.001 to ≤10V
 - Functional in AUTO within range 0.01Ω - <1.0E+4 Ω
 - Manual Operation Resistance Range: 0.01E-1 to 9.99@+9 Ω

 10V Constant Voltage (Under Load)
 - Test Voltage Varies ± <5% in AUTO or Manual Operations
 - Functional in AUTO within range 1.0E+4Ω - <1.0E+6 Ω
 - Manual Operation Resistance Range: 0.9E+4 to 9.99E+10 Ω

 100V Constant Voltage (Under Load)
 - Test Voltage Varies ± <2% in AUTO or Manual Operations
 - Functional in AUTO within range 1.0E+6 Ω - <1.0E+13 Ω
 - Manual Operation Resistance Range: 0.90E6 to 9.99E12 Ω
 
 Returns to Auto Mode
 Modes of 
 Operations		  GO A: Performs all automatic and manual voltage select functions, stops and displays measurements after Electrification   Period (EP) is complete, then displays data with Green LED ON for 10 seconds.
 GO C: Performs all automatic and manual voltage select functions, continuously displays measurements until the operator   presses MODE or TEST pads. GO C disables electrification period controls.
 Power  One 9V alkaline transistor battery; battery life > 50 hours
 Dimensions  7.25 in. (184 mm) x 4.3 in, (109 mm) x 1.4 in. (36 mm)
 Weight  13.2 oz. (375 gram) with battery installed
 Notes

 1Tolerance and accuracy measurements were conducted under controlled conditions with close tolerance reference resistors.
 Do not attempt to open instrument case

  • No internal operational parts or adjustments
  • Provides access to 100DCV power supply
  • Damage to instrument and environmental seals may occur
  • Will void warranty
  • Store instrument in case and dry environment