参数资料
| 型号： | WSMONITOR2 |
| 厂商： | 3M |
| 文件页数： | 2/3页 |
| 文件大小： | 0K |
| 描述： | MONITOR WRIST STRAP/MAT |
| 标准包装： | 1 |
| 类型： | 工作站监视器 |
| 使用： | 工作面，腕带监视 |
| 特点： | 连续监视，单芯系统 |
| 电源类型： | AC 适配器 |
| 包括： | AC 适配器 |
| 其它名称： | 3M10859 51111764718 80000954570 WSMONITOR2-ND |
Constant Monitors for Wrist Straps ~ single wire
single wire constant wrist strap monitors
item number
see page
3
1142-b
datasheet
product
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Introduction
Damage to electronic devices is primarily caused by static electricity from people.
Connecting people to ground directs static electricity away from devices. Constant
monitors are designed to continuously test the connection of the person, the wrist
band, and the coil cord to ensure that people remain grounded.
Constant monitor WSMONITOR1 uses a solid state impedance design to continu-
ously test the connection integrity of the entire ground loop including the person, the
wrist band, and the coil cord. Models WSMONITOR2 and WSMONITOR3 also pro-
vide bench mat monitoring. This system is fully automatic and activates when a wrist
strap is plugged into the unit. It provides a green light for safe condition and a red
light and tone for unsafe condition. The unit is powered and grounded by the AC
adapter.
Monitors Reduce Cost
Constant monitors reduce production costs by eliminating the time associates spend
testing wrist straps before each shift. With a constant monitor, associates may begin
work by simply plugging in their wrist strap. Further savings may be realized by
reduced ESD damage from broken wrist straps. Constant monitors indicate a failed
wrist strap when the wrist strap breaks. A broken wrist strap may expose products to
ESD over an entire shift if it is checked only at shift change with wrist strap checker.
Cost Savings Model:
Savings Per Monitor = Time to check wrist strap X Labor rate ($ per Hour /60) X
240 days per year
$153.6 = 4 minutes X $0.16 ($10 hour/60min) X 240
The WSMONITOR1 pays for itself in 100 days.
This is a conservative estimate of the cost savings. Many people use the trip to the
checker as an opportunity to socialize, increasing times to 6 or even 9 minutes. This
exercise assumes a single shift, with a once daily test. Many companies test at the
beginning of each shift, tripling the labor required.
Technology
Single Wire - Constant Monitors
A low level AC signal is used to constantly look for a broken or disconnected wrist
strap. 3M “Single Wire” or “impedance type” monitors use the phase difference
between current and voltage to detect changes in impedance of the cord, band and
person. A special buffering circuit design prevents false alarms from bunched cords
and changing capacitance. Any standard wristband and coiled cord can be used. No
adjustments are required.
Dual Wire - Continuous Monitors
These units provide continuous monitoring instead of constant monitoring. To avoid
skin irritation from the constant application of DC voltage, the sensing signal is pulsed,
on for one second and then off for two seconds. “Dual Wire” or “resistance type”
monitors apply as much as 16 volts DC to the operator through a special wristband
and coiled cord to look for a broken or disconnected wrist strap.
Cost of Ownership
Cost of installation and ownership for Dual Wire units is higher than Single Wire units,
with a Dual Wire monitor costing as much as $167 and the special wrist straps $33
each. By comparison, a Single Wire monitor costs about $60 with standard wrist
straps costing $8.
Calibration / Verification
Both single wire impedance type and dual wire resistance type monitors are designed
to be adjustment free. Annual calibration is not necessary. If, however, your quality
program requires testing, a verification tool that simulates a functional and non-func-
tional wrist strap is available to verify that the monitor is functional. See s on page 3.
Page 2 of 3
Page 1. Constant Monitors- single wire.
Page 2. Application, Technology, Savings.
Page 3. Item Numbers, Specs, Test Module.
3M Electronic Solutions Division
6801 River Place Blvd.
Austin, TX 78726-9000
US and Canada: 866-722-3736
Fax: 866-722-3735
Intl: 919-718-0000
; Fax: 919-774-8174
email: 3Mstaticinfo@mmm.com
; www.3M.com/static
2008
3M is a trademark of 3M Company.
All other trademarks herein are the property
of their respective owners.
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| WSMONITOR2-230VAC | 功能描述:防静电控制产品 WRIST STRAP MONITOR W/230 VAC PWR ADPTR RoHS:否 制造商:3M Electronic Specialty 产品:Air Ionizers 类型:Mini 颜色: 大小:4.5 in x 3.3 in x 2 in |
| WSMONITOR3 | 功能描述:防静电控制产品 SINGLE WIRE MONITOR RoHS:否 制造商:3M Electronic Specialty 产品:Air Ionizers 类型:Mini 颜色: 大小:4.5 in x 3.3 in x 2 in |
| WSMPDUT60BKSK | 制造商:Wiremold / Legrand 功能描述:WORK SURFACE MOD POWER KIT, 60 IN TABLE, 1 PORTAL; Connector Kit Type:Power Modular; Kit Contents:Two 4 Wires, 2 Circuit Cables: each 27" Length, Black Cable Covers, 4 Cable Clamps, Portal; Leaded Process Compatible:No ;RoHS Compliant: No |
| WSMPHWSC72 | 制造商:Wiremold / Legrand 功能描述:HARDWIRE STARTER CABLE, WSMP KIT, Leaded Process Compatible:No, Peak Reflow Compatible (260 C):No, Accessory Type:Hardwire Starter Cable, For Use With:Wiremold Work Surface Modular Power Kits , RoHS Compliant: No |
| WS-MS2111 | 制造商:Stellar Labs Power 功能描述:Wistron Replacement Laptop Battery |
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