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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。
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
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Dimensions | 5.43 in. x 7.48 in. x 2.09 in.
(13,8 cm x 19,0 cm x 5,3 cm) |
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Power Supply | 27 volt DC transformer,
150 mA (AC/DC adapter suplied)
6 ft. (1,8 m) wire |
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Test Voltage | 20 volts DC, ± 1 volt (open circuit) |
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Resistance Ranges | Lower limit: 750K ohms |
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Upper limit
wrist strap | 2, 5, 10 and 35M ohms |
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Upper limit
footwear | 10, 35, 50 and 100M ohms |
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Accuracy | + 20%, -0% for 750K ohms lower limit
±10% for 2M, 5M, 10M, 35M and 50M
ohms ±20% for 100M ohms |
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Output | Open collector at pins 1, 2, 4 and 5.
DC return at pin 5. +5 volts at pin 3. |
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