martens中国代理|表头变送器PH40|上海欧臻机电供 martenspH-表头变送器pH 40 Technical data Power supply Supply voltage : 5..30 V DC output 0 : 10..30 V DC output 2 Operating temperature : -10..+60 °C Input pH/ORP Measuring range : -1..+15 pH / ± 1500 mV Input resistance : >1012 ? Output Type 0 : 1:1 transfer of the pH-signal with low output impedance, error free measurement up to 100 m Type 2 : 4..20 mA, 2-wire technology in the range -1..+15 pH depending at 25 °C, zero-point pH 7.0, slope 59.2 mV/pH, not compensated Accuracy : type 0 = 0.01 % type 2 = 0.2 % Case Material : PVC-U Weight : approx. 100 g Process connection : S7 or SMEK plug Electrical connection : 8 pole round socket, M12x1 Material : brass plated Protection class : IP65 电话：021-34140074 传真：021-54971879 邮箱：info@sh-ouzhen.com 公司网站：http://www.sh-ouzhen.com