Table Of Contents - Hoffer Flow Controls HIT-4U User Manual

Flow-Tech, Inc. | In MD 410-666-3200 - In VA 804-752-3450 | www.flowtechonline.com
CONTENTS
1. INTRODUCTION ------------------------------------------ 1
Model Number Designation ------------------------------- 3
2. FEATURES AND SPECIFICATIONS ----------------- 7
2.1 General--------------------------------------------------- 8
2.2 Inputs----------------------------------------------------- 9
2.3 DC Power/Loop Powered ---------------------------- 9
2.4 Analog Output ------------------------------------------ 9
2.5 Pulse Output ------------------------------------------ 10
2.6 Alarm Output with Dual Set Point --------------- 10
2.7 Serial Port RS485 ------------------------------------ 10
2.8 Data Logging------------------------------------------ 10
2.9 Physical ------------------------------------------------ 10
3. INSTALLATION ----------------------------------------- 11
3.1 4-20 mA Current Loop ----------------------------- 18
3.2 Analog Output Update Time ---------------------- 19
3.3 Pulse Output ------------------------------------------ 20
3.4 Alarm Output----------------------------------------- 21
4. CONFIGURATION -------------------------------------- 23
4.1 Local Configuration --------------------------------- 23
4.2 Default Configuration------------------------------- 30
5. OPERATION ---------------------------------------------- 31
5.1 Front Panel -------------------------------------------- 31
5.2 Saving Total ------------------------------------------- 31
5.3 Clearing the Total------------------------------------ 32
5.4 Displaying Logs--------------------------------------- 32
5.5 Fault Conditions ------------------------------------- 33
5.6 Battery Replacement -------------------------------- 33
6. MODBUS COMMUNICATIONS --------------------- 34
7. HIT-4 COMMUNICATION PROGRAM ----------- 43
8. MAINTENANCE ----------------------------------------- 55
HIT-4U HP-327