Dwyer DM-1000系列 電池供電式差壓表/風速表
品牌:dwyer
產品描述:
可以現場編程選擇測量壓力、風速或流量
DM-1000系列數字差壓表/風速表是替換模擬機械式差壓表及風速表的的數字式儀表。同模擬表相比,數字表具有更強大靈活的功能,諸如可以現場編程選擇測量壓力、風速或流量。此外DM-1000系列數字式差壓表還具備一個特性,因其具有報警設定點,特別適用于有過濾器的應用場合,當過濾器臟了后,DM-1000將會閃爍報警,提醒客戶需要進行維護等操作。
對DM-1000系列進行編程,僅僅需要通過菜單鍵進入4個醒目的子菜單,通過它們可以設定安全等級、選擇工程單位、更改K系數(當使用不同的皮托管或流量傳感器時)、設定圓形或方形管道尺寸(測量體積流量時)、更改過濾器設定點、查看zui高/zui低峰值數據、設定數字阻尼值用來平滑讀數(用于讀數波動較多的過程應用)、顯示模式(用以節省電池),現場校準零點及量程。
DM-1000系列數字式差壓表/風速表,具有1%FS的精度(量程大于2? W.C)及2%精度(量程0.25? W.C到1? W.C)。DM-1000具有多種供電方式,可以使用9-24VDC電源模塊供電,也可以使用9V電池供電。而當使用電源模塊供電且儀表具有9V電池時,電池將起到備份的作用,即當停電時9V電池將自動啟動,使儀表繼續正常運行。
Dwyer DM-1000系列 電池供電式差壓表/風速表
技術參數 :
Service: Air and non-combustible, compatible gases.
Wetted Materials: Consult factory.
Housing Materials: Glass filled plastic.
Accuracy: ±1% FS including linearity, hysteresis and repeatability; ±2% FS for
ranges 1 in w.c. and below.
Temperature Limits: 0 to 140°F (-18 to 60°C).
Compensated Temperature Limits: 32 to 122°F (0 to 50°C).
Long Term Stability: ±1% FS per year.
Thermal Effect: ±0.05% FS/°F typ.; ±0.10% FS/°F for ranges 1 in w.c. and below.
Display: 4-digit LCD?(digits:?0.60H x 0.33W).
Display Update: Selectable for 1 second to 10 minutes or update only from button
push.
Pressure Limits: Normal and bi-directional ranges 5 in w.c. and lower = 2 psi
(13.7 kPa); Normal and bi-directional ranges 10 in w.c. and higher = 11 psi (75
KPa).
Selectable Engineering Units: in w.c., psi, kPa, Pa, mm w.c., mBar, in Hg, mm
Hg, FS?(0-100%).
Power Requirements: 9 V alkaline battery, included, user replaceable or external
power supply 9-24 VDC.
Battery Service Life: Battery life depending on the display update setting: 150
hours (typical) if display update = 1 second; 9 month (typical) if display update =
10 minutes; 1.5 years (typical) if display update is disabled. Battery may last up to
four times longer when using lithium-based battery ULTRALIFE U9VL-J.
Current Consumption: 5 mA max.
Electrical Connections: Removable terminal block for 16 to 26 AWG.
Electrical Entry: Cable gland for 0.114 to 0.250? (2.9 to 6.4 mm)?diameter cable.
Process Connections:?1/8? (3 mm) ID tubing.
Enclosure Rating: NEMA 4X (IP66).
Weight: 1.18 lb?(535 g).
Size: 5? (127 mm) OD front face.
Agency Approvals: CE
產品選型 :
選項及配件 :
A-299, Surface Mounting Bracket
A-300, Flat Flush Mounting Bracket
A-286, 4-1/2? Gage Panel Mounting Flange
A-489, 4? Straight Static Pressure Tip with Flange
A-480, Plastic Static Pressure Tip
Dwyer DM-1000系列 電池供電式差壓表/風速表