Instruction Manual
Tek-Batch 7900B
www.tek-trol.com
Technology Solutions
14
5.1.2.1
Password Protection for Rate or Total Mode
•
The device will be locked when an Operator and/or Supervisor have entered a password in
the setup mode (see section SETUP PASSWORD submenu). The unit will prompt the user
for the password when trying to perform the following functions:
o
Clear Total
o
Clear Grand Total
o
Enter Menu
o
Edit Preset 1 (PRE 1 Key)
o
Edit Preset 2 (PRE 2 Key)
•
Only supervisors should have access to the supervisor password. The supervisor password
will allow access to restricted areas of the Setup and Test menus.
5.1.2.2
Relay Operation in Rate/Total mode
•
Alarm outputs can include up to four relays (two are common).
•
The relays can be programmed to trip in response to rate, total, temperature, density, or
system alarms.
•
Low and high alarms can be programmed into the relays. By tapping the PRE 1 or PRE 2 keys
on the front panel, you can quickly access Preset 1 (RLY1) and Preset 2 (RLY2).
•
Presets 3 and 4 can only be accessed through the setup menu.
5.1.2.3
Pulse Output in Rate/Total mode
•
Volume Total, Corrected Volume Total, or Mass Total are the menu options for the isolated
pulse output (open collector).
•
The pulse output duration can be set to 10mS (50Hz max) or 100mS (5Hz max).
•
A pulse output scale factor (pulse value) can be set to scale the pulse output.
•
The pulse output is used to connect remote totalizers or other devices such as a PLC. Refer
electrical specifications section.
5.1.2.4
Analog Output in Rate/Total mode
•
The analog output can be assigned to the Volume Rate, Corrected Volume Rate, Mass Rate,
Temperature, Density, Volume Total, Corrected Volume Total, or Mass Total through the
menu system.
•
The analog output is used to employ strip chart recorders or other devices to track "trends."
5.1.2.5
RS-232 Serial Port Operation in Rate/Total mode
In the Operating Mode (Run Mode), one can use the RS-232 serial port to program (using the
Setup Disk), communicate with printers, and connect to computers.
5.1.2.5.1
PC Communication
The Setup Disk allows the user to check the operating status unit including, Flow Rate, Flow
Total, Temperature, Density, Presets, etc.
Summary of Contents for TEK-B ATCH 7900B
Page 21: ...Instruction Manual Tek Batch 7900B www tek trol com Technology Solutions 19...
Page 23: ...Instruction Manual Tek Batch 7900B www tek trol com Technology Solutions 21 6 4 Submenu Setup...
Page 28: ...Instruction Manual Tek Batch 7900B www tek trol com Technology Solutions 26 6 4 9 Setup Relays...
Page 30: ...Instruction Manual Tek Batch 7900B www tek trol com Technology Solutions 28 7 Menu Tree...
