3M740+741D人体综合测试仪

3M740+741D人体综合测试仪|美国3M公司总代理|深圳华清仪器销售美国3M公司3M740+741D人体综合测试仪销售热线： QQ:540214533 张运华
3M740+741D人体综合测试仪
3M740手腕带和防静电鞋测试仪，可安装在工厂墙上与741D脚垫配合使用，来测试工人的手腕带和防静电鞋接地系统是否工作良好。不同的阻值设定，易于识别的指示灯，适用于不同的工业，符合国际标准，同时具有数字输出端口，可连接自动门控、警报及数据记录设备。

3M740+741D人体综合测试仪产品描述：

740 Wrist strap + 741Dshoe tester: The 740 wrist strap and shoe tester consists of: - Instruction manual with daily log sheet - Base unit - Data output connector plug - Wall mounting kit, 3M Dual Lock? fastening system and template - Cover for wrist strap plug-in jack - AC/DC transformer - Ground cord Accessories: - Shoe electrode type 741 (single electrode) sold separately The 741 shoe electrode must be connected if footwear testing is required.

740 Properties
3M740+741D人体综合测试仪技术参数：

Item	Properties

Dimensions

5.43 in. x 7.48 in. x 2.09 in.
(13,8 cm x 19,0 cm x 5,3 cm)

Weight

15.75 oz. (450 gm)

Power Supply

27 volt DC transformer,
150 mA (AC/DC adapter suplied)
6 ft. (1,8 m) wire

Test Voltage

20 volts DC, ± 1 volt (open circuit)

Resistance Ranges

Lower limit: 750K ohms

Upper limit
wrist strap

2, 5, 10 and 35M ohms

Upper limit
footwear

10, 35, 50 and 100M ohms

Accuracy

+ 20%, -0% for 750K ohms lower limit
±10% for 2M, 5M, 10M, 35M and 50M
ohms ±20% for 100M ohms

Output

Open collector at pins 1, 2, 4 and 5.
DC return at pin 5. +5 volts at pin 3.