Dwyer Instruments Digihelic DHC Series - Page 7

uoUt (Voltage Output Range) SUB MENU
The voltage output range setting allows the voltage output limits to be congured to 1
of 4 common ranges. Available options include: 0-10 V, 0-5 V, 1-5 V, and 2-10 V. The
factory setting is 0-10 V.
SP (Set Point) MAIN MENU
The SP MENU allows the individual set points to be enabled or disabled. The SUB
MENUS are:
• SP1 - Set Point 1 Enable
• SP2 - Set Point 2 Enable
SP1 (Set Point 1 Enable) SUB MENU
Enable/disable set point 1. When enabled (ON), the set point 1 trigger and reset SUB
MENUS will appear in the SPAL menu. The factory setting is ON.
SP2 (Set Point 2 Enable) SUB MENU
Enable/disable set point 2. When enabled (ON), the set point 2 trigger and reset SUB
MENUS will appear in the SPAL menu. The factory setting is ON.
AL (Alarm) MAIN MENU
The AL MENU allows the features of the alarm to be congured. The SUB MENUS are:
• ALHi - Alarm High Limit Enable
• ALLo - Alarm Low Limit Enable
• ALrE - Alarm Reset Type
• ALiH - Alarm Inhibit Enable
• ALDL - Alarm Delay Time
ALHi (Alarm High Limit Enable) SUB MENU
Enable/disable the alarm high limit. When enabled (ON), the alarm high limit (ALHI)
SUB MENU will appear in the SPAL menu. The factory setting is ON.
ALLo (Alarm Low Limit Enable) SUB MENU
Enable/disable the alarm low limit. When enabled (ON), the alarm low limit (ALLO)
SUB MENU will appear in the SPAL menu. The factory setting is ON.
ALrE (Alarm Reset Type) SUB MENU
• AUTO - Automatic reset (factory setting)
• HOLD - Manual reset. An alarm is reset by the RESET key on the front panel.
ALiH (Low Alarm Inhibit) SUB MENU
• ON - Alarm inhibit is on
• OFF - Alarm inhibit is off (factory setting)
If ALiH is selected ON, a low alarm condition is suspended upon power up until the
process value passes through the alarm set point once.
ALDL (Alarm Delay) SUB MENU
Sets the amount of time an alarm condition must be continuously met before the alarm
condition is recognized. The alarm delay is adjustable from 0-3600 seconds. The
factory setting is 0.
rLy (Relay) MAIN MENU
The rLy menu includes options to congure which source will trigger a relay and what
happens when a relay is triggered. The SUB MENUS are:
• rLy1 - Relay 1 Source
• rLy2 - Relay 2 Source
• r1At - Relay 1 Action
• r2At - Relay 2 Action
rLy1, rLy2 (Relay 1 Source, Relay 2 Source) SUB MENUS
• OFF - Relay not used
• SP1 - Set Point 1
• SP2 - Set Point 2
• AL - Either Alarm
• ALHI - High Alarm
• ALLO - Low Alarm
• EXT - External Input
The selected source determines when the relay is active. If the source is active, the
relay will be active.
r1At, r2At (Relay 1 Action, Relay 2 Action) SUB MENUS
• DIR - Direct Acting/CLSE - Close on Active
• REV - Reverse Acting/OPEN - Open on Active
The selected action determines what happens when the relay is active. If the selected
source is an alarm, then the options are CLSE and OPEN.
inP (Input) MAIN MENU
The inP MENU allows the features of the external input to be congured. The SUB
MENUs are:
• inP - External Input Enable
• tyPE - External Input Type
• DLY - External Input Delay
inP (External Input Enable) SUB MENU
• ON - External input enabled (factory setting)
• OFF - External input disabled
tyPE (External Input Type) SUB MENU
• NO - Normally Open (factory setting)
• NC - Normally Closed
DLY (External Input Delay) SUB MENU
Sets the amount of time the external input must be continuously active before it is
considered active. The delay is adjustable from 0-3600. The factory setting is 0.
diS (Display) MAIN MENU
• PEAK - Peak value
• VALY - Valley value
• PdiS - Process display
• DAMP - Damping Time
PEAK (Peak) SUB MENU
The Peak feature stores the highest process reading the instrument has measured
since the last reset or power up. At power up PEAK is reset to the present pressure
reading. To manually reset the PEAK value, press the RESET key while in the PEAK
SUB MENU.
VALY (Valley) SUB MENU
The valley feature stores the lowest process reading the instrument has measured
since the last reset or power up. At power up VALY is reset to the present pressure
reading. To manually reset the VALY value, press the RESET key while in the VALY
SUB MENU.
PdiS (Process Display) SUB MENU
• STD - Display reads pressure, velocity, or ow values
• PCT - Display reads % of full-scale value
When the display is reading percent, PCT is displayed in the upper right of the display.
DAMP (Damping) SUB MENU
The damping time can be adjusted from 0 to 30 seconds.
Damping stabilizes the display and outputs from instabilities due to circumstances
such as vibration and excessive pressure uctuations. Adjust the damping value until
the display reads a stable value for the application.
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