740 3M, 740 Datasheet - Page 108

• Manufacturer Part Number: 740
• Description: TESTER ESD WRIST STRAP
• Manufacturer: 3M
• Type: Testerr

Specifications of 740

• Features: Wall Mount
• Power Supply Type: AC Adapter
• Size: 137.92 mm x 189.99 mm x 53.09 mm
• Meter Display Type: LED
• Accuracy %: 20%
• External Height: 5.43"
• External Width: 7.48"
• External Depth: 2.09"
• Weight: 450g
• Accuracy: +/-10% For 10, 35 & 50Mohms
• Rohs Compliant: NA
• For Use With/related Products: Wrist Straps, Footwear
• Lead Free Status / RoHS Status: Vendor undefined / Vendor undefined
• Other names: 98079825257; SCP204

3M
The 3M Wrist Strap and Footwear Tester 740 is an AC-powered unit
designed to be wall-mounted in a production facility for daily testing of
employees’ static control wrist straps. Use of the optional 3M
Electrode 741 attachment allows the tester to be used as a footwear
tester as well. The optional Shoe Electrode 741 is a test plate that
connects to the Wrist Strap and Footwear Tester 740. By standing
on the shoe electrode, personnel can use the wrist strap and footwear
tester to check the operation of static control footwear, heel straps
and the like. This electrode, constructed of rugged stainless steel in
a molded plastic base, must be ordered separately.
Simple to operate, the unit has several useful features and options. Red
and green LEDs give a clear “go” or “no go” indication. The user can
select any of four different resistance levels, making the tester a versatile
instrument to meet varying industry, corporate and global standards. The
unit tests the wrist band and cord while they are being worn, and can also
test each component independently to isolate an indicated fault. There
is also a digital output that can be used to interface with a computer,
automatic door lock, alarm or other control device.
The wrist strap and footwear tester comes with the base unit, output
connector, 3M Dual Lock
for the wrist strap plug-in jack and the AC/DC transformer.
3M
™
Wrist Strap and Footwear Tester 740
™
Wrist Strap and Footwear Tester
™
Wall-Mounting System and template, cover
™
Shoe
Note: The Shoe Electrode 741 is not included with the Wrist
Strap and Footwear Tester 740 and must be ordered separately.
Wrist Strap Tester 740 Properties
Item
Dimensions
Weight
Power Supply
Test Voltage
Resistance Ranges
Upper Limit Wrist Strap
Upper Limit Footwear
Accuracy
Output
Wall Mounting
Shoe Electrode 741 Properties
Item
Dimensions
Weight
Construction
Other
Test Equipment
Typical Properties
20 H x 16 in. W (50.8 x 40.6 cm)
5 lbs. (2.3 kg)
1 mm stainless steel plate and molded plastic base
3M adhesive strip prevents unit from sliding while in
use. Shoe electrode interconnect cord 6 ft. (1.8 m).
Typical Properties
5.43 H x 7.48 W x 2.09 in. D
(13.8 x 19.0 x 5.3 cm)
15.75 oz. (450 gm)
27 Vdc transformer, 150 mA
(AC/DC adapter supplied)
6 ft. (1.8 m) wire
20 Vdc, ± 1 volt (open circuit)
Lower limit: 750K ohm
2, 5, 10 and 35M ohm
10, 35, 50 and 100M ohm
+ 20%, -0% for 750K ohm lower limit
± 10% for 2M, 5M, 10M, 35M and 50M
ohm ± 20% for 100M ohm
Open collector at pins 1, 2, 4 and 5
DC return at pin 6. + 5 volts at pin 3
3M
™
Dual Lock
™
System
103