HM685 平衡阀流量测试仪
HM685型平衡阀流量测试仪用于平衡液体循环加热和冷却系统、检查泵的性能和设置平衡阀,能够在无需改变软管连接或仪器阀门设置的条件下,同时测量和显示压差、高压侧和低压侧压力。
仪器具有简单的设置和直观的操作,非常易于使用。
组件包括:
仪器主机
硬质手提箱
(2) 6.7 ft x ¼-in. 具有截止阀的(2 m x 6 mm) 软管
(2) B&G读出探头
(2) P/T表适配探头
电源线
温度探头
CompuDat™ USB下载软件
USB数据线
特点与优势
支持双温度探头输入
背光大屏,在昏暗光线条件下仍能清晰显示
由四节碱性或镍氢可充电电池供电
读数方式 H 2 O, ft. H 2 O, psi, in. Hg, mm Hg, m H 2 O, kPa 或 bar
压差范围 ±300 psi (±2068 kPa)
表压范围 -20 - 300 psi (-138 - 2068 kPa)
集成通用流量和btu/hr计算
当设置Cv (Kv) 因子后显示体积流量
可输入多达100 个Cv (Kv)因子
计算制动力,热流, Cv (Kv)因子和泵轮尺寸
能够存储多达4,000个数据点,用于检索或通过USB端口下载
坚固的防喷溅仪器箱
含电池重量:2.65 lbs (1.20 kg)
技术参数
型号 | HM675/HM685 |
Pressure | |
Differential Range | -300to300psi(-2068to2,068kPa) |
Gauge Range | -20to300psi(-138to2,068kPa)(-40 to 610 in.Hg) |
Resolution (best) | 0.001psi(0.01kPa)(0.01 in.Hg) |
Accuracy1 | ±1%of reading plus .072 psi(0.5kPa)(0.15in.Hg) |
Units | psi,in.H2O,ft H2O,kPa,mm Hg in.Hg,m H2O,bar |
Pressure Connection | 1/4"37 flare fitting.Male |
Temperature | |
Operating (electronics) | 40to113oF(5to45℃) |
Storage | -4to140℉(-20to60°C) |
Liquid Media | 32to180℉(0to82℃) |
Probe (immersion) | -40to250℉(-40to121℃) |
Resolution | 0.1℉(0.1℃) |
Accuracy | ±0.5%of reading+1.2℉(0.7℃) |
Units | ℉,℃ |
Flow (HM685 Only) | |
Range2 | -22.712to22.271m3/h,-99.999to99,999 USGPM(-6,309to6,309I/s) |
Resolution (best) | 0.0001 USGPM(0.00001I/s) |
Accuracy | per pressure accuracy+valve deviation |
Units | USGPM,UKGPM,m3/h,I/s,I/m |
Time Constant | User selectable (1,5,10,20,and 30 seconds) |
Statistics(HM685 only) | min,max,average,sum up to 4,000 readings |
Data Storage(HM685 only) | 4,000 combined readings,100 Test IDs |
Logging Interval(HM685 only) | User selectable(1 to 3,600 seconds) |
External Meter Dimensions | 11.1in.×4.7in.×3.5in.(28.2cm×11.9cm×8.8cm) |
Meter Weight with Batteries | 2.65lbs(1.20kg) |
Power Requirements | Four AA-size cells,or AC adapter |