CharlesWater 99090 Technisches Dokument

Unit 17. Millbrook Business Park, Sybron Way • Crowborough, East Sussex TN6 3JZ United Kingdom

Phone: 00 44 (0) 1892-665313 • Internet: Charleswater.co.uk

Made in the

United States of America

Calibration Unit for Testers

Installation, Operation and Maintenance

Description

The Charleswater 99090 Calibration Unit is designed to

verify whether a tester is operating within specifications.

The 99090 Calibration Unit is a passive device and

requires no power source. The Calibration Unit is

manufactured with industry accepted test ranges for

both wrist straps and foot grounders. Both the wrist

strap and footwear pass range is set at 750K - 35M.

The Charleswater Calibration Unit is calibrated to NIST

traceable standards.

The Charleswater 99090 Calibration Unit is to be used

with the following items:

Item Description

99037 Combo Tester

99038 Combo Tester with Stand and Foot Plate

Packaging

1 Calibration Unit

2 Test Leads with Banana Plug Terminals

1 Certificate of Calibration

August 2015

Figure 1. Charleswater 99090 Calibration Unit

Operation

COMBO TESTER

Testing the Wrist Strap Circuit

1. Plug one of the included test leads into the black

banana jack labeled “E” on the Calibration Unit.

Connect the opposite end of the test lead into the

yellow banana jack labeled “WRIST STRAP” on the

Combo Tester. Toggle the switch to the “WRIST

STRAP” position.

TECHNICAL BULLETIN PPE-5034.E

Figure 2. Connecting the test lead from banana jack “E”

on the Calibration Unit to the WRIST STRAP banana

jack on the Combo Tester

2. Connect the second test lead to the red 675K

banana jack labeled “A” on the Calibration Unit.

Touch the opposite end of the test lead to test plate

on the Combo Tester and press down to activate

the test. Be sure not to touch the banana plug or

test plate with your skin.

3. Observe the response from the Combo Tester. The

alarm should sound, and the LOW LED should

illuminate red.

4. Repeat the procedure for test points B (825K), C

(35M) and D (40M). The expected test results can

be found in the following table.

Test

Point

Resistance

Value

Test Output

A 675K FAIL LOW

B825K PASS

C35M PASS

D40M FAIL HIGH

Unit 17. Millbrook Business Park, Sybron Way • Crowborough, East Sussex TN6 3JZ United Kingdom

Phone: 00 44 (0) 1892-665313 • Internet: Charleswater.co.uk

Testing the Footwear Circuit

1. Plug one of the included test leads into the black

banana jack labeled “E” on the Calibration Unit.

Connect the opposite end of the test lead into the

yellow banana jack labeled “FOOT PLATE” on the

Combo Tester. Toggle the switch to the “FOOT

PLATE” position.

Specifications

Accuracy:

±5%

Dimensions:

8.1 cm x 11.2 cm x 2.3 cm

Weight:

.1 kg

Figure 3. Verifying the calibration of the wrist strap

circuit in the Combo Tester

Figure 4. Connecting the test lead from banana jack “E”

on the Calibration Unit to the FOOT PLATE banana jack

on the Combo Tester

2. Connect the second test lead to the red 675K

banana jack labeled “A” on the Calibration Unit.

Touch the opposite end of the test lead to test plate

on the Combo Tester and press down to activate

the test. Be sure not to touch the banana plug or

test plate with your skin.

3. Observe the response from the Combo Tester. The

alarm should sound, and the LOW LED should

illuminate red.

4. Repeat the procedure for test points B (825K), C

(35M) and D (40M). The expected test results can

be found in the following table.

Test

Point

Resistance

Value

Test Output

A 675K FAIL LOW

B825K PASS

C35M PASS

D40M FAIL HIGH

Figure 5. Verifying the calibration of the footwear circuit

in the Combo Tester

Limited Warranty, Warranty Exclusions, Limit of

Liability and RMA Request Instructions

See Charleswater’s Warranty -

http://www.charleswater.co.uk/LimitedWarranty.aspx

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