3M740+741D人體綜合測試儀|美國3M公司總代理|深圳華清儀器銷售美國3M公司3M740+741D人體綜合測試儀銷售專線：13554848522 QQ:540214533 張運華 3M740+741D人體綜合測試儀 3M740手腕帶和防靜電鞋測試儀，可安裝在工廠墻上與741D腳墊配合使用，來測試工人的手腕帶和防靜電鞋接地系統是否工作良好。不同的阻值設定，易于識別的指示燈，適用于不同的工業，符合國際標準，同時具有數字輸出端口，可連接自動門控、警報及數據記錄設備。
3M740+741D人體綜合測試儀產品描述：
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人體綜合測試儀技術參數：
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.