DM-1000 數顯壓差計和流量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*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/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）、高級顯示模式（用以節(jié)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(xù)正常運行。

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?(0-99%).
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