50890 Heavy Hammer Resistance Tester

Product Introduction:

DESCO50890 Heavy Hammer Resistance Tester

Introduction: Only used to test surface resistance/Surface resistivity, volume resistivity/volume resistivity, grounding resistance, etc. (50890 replaces 19290)

1. Instrument description

50890 can be used for the following ESD tests and complies with relevant specifications:

Compliance testing of electrostatic resistance（ESD TR53 Specification Manual

Anti static workbench detection（ESD S4.1 B standard)

Anti static floor detection（ANSI/ESD S7.1 standard)

Anti static shoe testing（ESD S9.2 standard)

Anti static work clothes testing（ESD STM2.1 standard)

anti-static shoes+Anti static floor+human body system resistance detection (ESD STM97.1 standard)

Product parameters

Test point-to-point resistance, surface resistance, and grounding resistance

comply withIEC61340-2-3，ESD TR53，ANSI/ESD S4.1/7.1，ANSI/ESD STM2.1/12.1/97.1, ESD SP9.2 规范

Test voltage:10V/100V (automatic, 10V for less than 1M Ω, 100V for greater than or equal to 1M Ω)

Testing time:15 seconds/fast (optional)

Test range:1KΩ～1TΩ

Test accuracy:± 10% (less than 1T Ω), ± 20% (greater than or equal to 1T Ω)

Reading display:OLED digital display and LED indicator light, index expression method

Testing environment temperature and humidity, temperature testing accuracy+/-10%, humidity testing accuracy+/-10 words

Can be saved100 sets of test data (stored in the instrument memory and cannot be exported)

4 AA batteries with a lifespan of 1500 tests

standard configuration2 5-pound hammer electrodes (item number 50003)

Choose concentric circle heavy hammer electrode to test surface resistance/Surface resistivity (ANSI/ESD STM11.11 specification)

Choose two-point electrodes to test the electrostatic resistance of small items

Choose clamp shaped electrodes to test the static resistance of pipes or irregular items

Optional metal grip test wrist strap and human body+Shoe+floor composite resistor

Optional hanging electrode test gloves and finger cots for electrostatic resistance

Order item number50890The following items are standard:

50890: Heavy Hammer Resistance Test Kit, comes standard with the following items

Part number:50890, Test Sheet, 1 piece

Part number:50003, point-to-point heavy hammer electrode, 2 pieces

Part number:19300, 1.5-meter-long test wire (silver wire SMA terminal/red wire 4mm plug), 2 pieces

Part number:19293, 10 inch/36 inch distance markings, 2 lines

Part number:19296, label paper, 25 sheets

Part number:09750, grounding clamp, 1 piece

Part number:09838, grounding plug (American standard plug), 1 piece

Part number:N/A, AA alkaline battery, 4 cells

Part number:19292, suitcase (all the above items are packed in this box), 1 piece

Optional accessories:

19295: Metal handle

SPP1: Single point pen shaped electrode, used to test the point-to-point resistance and grounding resistance of small or irregular materials at any point

SPP2: Two point pen shaped electrode, used to test the resistance between small materials or narrow spaces fixed between two points

SPP3: Concentric point pen shaped electrode for testing surface resistance/surface resistivity of small materials

REM005: Concentric heavy hammer electrode, testing surface resistance/surface resistivity of medium/large materials

832: Clamp shaped electrodes (1 pair), test the resistance of the inner/outer wall of the tubular material

19298: Hanging electrodes (1 set), testing glove/finger cuff resistance

S11: Wristband testing stand, compliant with ANSI/ESD S1.1 standard for testing the internal and external resistance of wrist straps and wristbands

50004:50003 point-to-point heavy hammer electrode handle (1 pair)

HR10: Standard resistor, used for calibrating the tester

Test operation

6-1Basic precautions:

1. Ensure that the tested material itself is not charged

2. The distance between the placement point of the heavy hammer electrode and the edge of the material2英寸以上

3. The distance between the placement point of the heavy hammer electrode and the grounding terminal on the material3英寸以上

4. When testing the point-to-point resistance of the table,2Distance between heavy hammer electrodes10Inches or more (matching can be used)10Inch distance marking)

5. When testing ground point-to-point resistance,2Distance between heavy hammer electrodes36Inches or more (matching can be used)36Inch distance marking)

6-2The placement point of the heavy hammer electrode is usually taken to better evaluate whether the material is qualified

a.Severely worn areas

b.central location

c.A location far from the grounding point

6-3If the tested material has seams, such as block flooring, clothing, etc,2Each heavy hammer should be placed separately in different splicing blocks

6-4When testing materials in the laboratory, pre cleaning treatment can be performed. For materials that have been laid and put into operation, do not clean them before testing. Only when they fail the test, clean them and retest.