HHT Key Operations
Hand-Held Terminal (HHT) for use with the Gateway and RLDS Controller • 57
9
Hand-Held
Terminal (HHT)
for use with the
Gateway and
RLDS Controller
The Hand-Held Terminal (HHT) connects directly to
the Gateway and is used for the initial setup and to run
the system. The HHT allows the user to make
setpoint and setup adjustments during system
start-up, and changes for routine or emergency
maintenance. The HHT displays several screens for
viewing leak system status, making control setpoint
adjustments, and adjusting at what PPM an alarm
should sound. Setpoint changes made through the
HHT are transferred to the RLDS controller and
overwrite any existing set points.
The HHT shares the communication port with the I/O
Net, and while the HHT is plugged in you can get a
momentary loss of communication on the I/O Net.
This may result in concentrations, showing
NONE
momentarily.
9.1. HHT Key Operations
The arrow keys will be used to move between fields
and screens.
Special Keys:
•
F1
- Save current changes and go back to
Screen 1 (Home screen).
•
F2
- Save current changes and go back to
Screen 3 (SELECT RLDS screen).
•
CANCEL
- Clear an edit field or acknowledge
an alarm on the status screen.
•
ENTER
- Checks if the entry is valid.
• Right arrow key - moves to the next editable
field or moves right one character in alpha
name fields.
• Left arrow key - moves to the previous edit
field or moves left one character in alpha name
fields.
• Down arrow key - moves to the next edit field
if one is selected or advances to the next screen
if no edit field is selected.
• Up arrow key - moves to the previous edit field
if one is selected or moves back to the previous
screen if no field is selected.
• “
.
” - Toggle option select fields or scroll alpha
characters for names, and acts as a decimal
point for floating point numbers.
The period key is the lower-most button on the bottom
left of the HHT.
• “
—
” - Toggle option select fields or scroll alpha
characters for names, and acts as a minus sign
for numeric entry.
The dash key is the lower-most button on the
bottom right of the HHT.
NOTE: Editable fields are activated when the
right arrow appears next to them.
Summary of Contents for GW-810-3760
Page 1: ...Refrigerant Leak Detection System RLDS Installation and Operation Manual 026 1309 Rev 11 ...
Page 37: ...30 RLDS I O Manual 026 1309 Rev 11 Figure 4 22 Connecting the Gateway to the RS485 Network ...
Page 84: ...Appendix B System Menu Map B 79 Appendix B System Menu Map ...
