Fluke 709H 校驗儀設計有一個用戶友好型界面和一個 Quick-Set 旋轉編碼器旋鈕。該工具減少了電壓、電流的測量或輸出時間及回路的加電時間。保護性皮套特別適合技術人員手握，大型背光顯示屏易于閱讀，甚至能在黑暗、狹促的工作區域讀屏。 709H 校驗儀的特點：
0.01% 讀數精度
設計小巧耐用，依靠 6 節標準的 AAA 電池供電
直觀的用戶界面，Quick-Set 旋鈕可快速設置，易于使用
內置 HART 通訊用 250 ? 可選電阻器
24 V 直流回路電源，帶有 mA 測量模式 (-25% ～ 125%)
電流量程分辨率為 1 µA，電壓量程分辨率為 1 mV
所有測量均采用簡單的雙線連接
自動關機以延長電池壽命（關機時間最長可調至 30 分鐘）
可變步進和斜坡時間（秒）
可調跨度選擇（0 ～ 20 mA 或 4 ～ 20 mA）
電子管測試（利用 % 鍵模擬所定義的 mA 值）
HART 特定性能包括：
快速傳輸校準數據。 709H/Track 軟件/電纜能以 (.csv) 或 (.txt) 格式記錄您設備上所有 HART 變送器的參數。
可將數據記錄在一個特定變送器上，便于排除故障。 數據記錄工具具有 1 ～ 60 秒可選采集間隔，可記錄 9800 條記錄或 99 個單獨會話。每個數據樣本都含有 709H 測量值、全部四個過程變量及標準的狀態條件。
在通訊模式中，用戶能夠讀取基本的裝置信息，執行診斷測試并微調大多數 HART 變送器的校準。在過去，該操作只能借助一個專用通訊器、一個多功能校驗儀或一個配有 HART 調制解調器的筆記本電腦來完成。Fluke 709H 能讓幾乎任何的技術人員維修和支持 HART 裝置。
Fluke 709H calibrator is designed with a user-friendly interface and a Quick-Set rotary encoder knob. The tool reduces the measurement or output time of voltage and current and the charging time of the circuit. Protective leather jackets are especially suitable for technicians to hold. Large backlight displays are easy to read, even in dark and narrow working areas. The characteristics of 709H calibrator:
0.01% reading accuracy
Designed to be compact and durable, powered by six standard AAA batteries
Visual user interface, Quick-Set knob can be quickly set up, easy to use
250 Optional Resistors for Built-in HART Communication
24 V DC circuit power supply with mA measurement mode (-25%-125%)
The current range resolution is 1 A and the voltage range resolution is 1 mV.
All measurements are made by simple two-wire connection.
Automatic shutdown to extend battery life (up to 30 minutes)
Variable step and slope time (seconds)
Selection of adjustable span (0-20 mA or 4-20 mA)
Electron tube test (using% bond to simulate defined mA values)
HART specific performance includes:
Fast transmission of calibration data. 709H/Track software/cable can record all HART transmitter parameters on your device in (.csv) or (.txt) format.
Data can be recorded on a specific transmitter to facilitate troubleshooting. The data recording tool has an optional acquisition interval of 1-60 seconds and can record 9800 records or 99 individual sessions. Each data sample contains 709H measurements, all four process variables and standard state conditions.
In communication mode, users can read basic device information, perform diagnostic tests and fine-tune the calibration of most HART transmitters. In the past, this operation could only be accomplished by a dedicated communicator, a high-end multi-functional calibrator or a laptop computer equipped with a HART modem. Fluke 709H allows almost any technician to repair and support HART devices.
