HM675 平衡阀流量测试仪
HM675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
它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。
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
特点与优势
支持双温度探头输入
压差范围±300 psi (±2068 kPa)
表压范围 -20 - 300 psi (-138 - 2068 kPa)
读数方式H 2 O, ft. H 2 O, psi, in. Hg, mm H 2 O, kPa, mm Hg, 或 bar
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
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 |