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专线：13554848522 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.