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For High Scale) to set the desired TARE number. Once the desired TARE value is displayed, push SETUP key to enter
that value and go to setup Setpoint.
After setting a channel's TARE, the next parameter to be set is channel's
SETPOINT. SETPOINT is used in Deviation Display mode. In this mode the
display is given as PROCESS-SETPOINT. For example, if it is desired to show
how Channel #1 temperature readings are varying from a target temperature of 212
degrees, then make the SETPOINT for channel #1=212.
When setting SETPOINT, the display will first show 'CHx SP', and then the
current SETPOINT value. Use SDIGT key (ref. Setup For High Scale) to get the
desired SETPOINT value. Once the desired SETPOINT value is displayed, push
SETUP key to enter that value and go on to setup channel 1's operational mode.
Channel 1 relay can be configured to work as a universal relay or as Channel 1
relay only. In universal mode, this relay gets activated whenever any channel on
the unit goes into alarm condition. In channel 1 mode, this output activates only if
process reading on channel 1 exceeds channel 1's programmed limit value. Display
format is 'C1 OnLY' (for 'Channel 1 only') or 'UnIVrSL' (for 'Universal').
Push SDIGT key to change to alternate mode and SETUP key after desired mode
is achieved.
After setting a channel's SETPOINT, the next parameter to be set is LIMIT. DPS3300 Series uses the LIMIT parameter
to determine when to activate output signal for a specific channel. When a reading exceeds the LIMIT for that channel,
then that channel's output signal is activated. When the channel reading drops below the LIMIT setting by the amount of
the DEADBAND setting, then the channel output is de-activated (if setup in non latching mode).
The display will first show 'CHx Lt' (x=channel #) after which the current LIMIT value will be displayed. Use SDIGT
key (ref. Setup For High Scale) to set the desired LIMIT value. Once the desired LIMIT value is displayed, push SETUP
key to enter that value and go on to setup Deadband.
After setting a channel's LIMIT, the next parameter to be set is channel's relay
DEADBAND. This parameter is used for eliminating relay "chatter" as a signal
hovers around its LIMIT value. When the channel reading drops below the LIMIT
setting by an amount equal to the DEADBAND, then the channel output is de-
activated. Minimum value of DEADBAND is 2.
The display will first show 'dEAd bd' after which present DEADBAND value
will be displayed. Use SDIGT key (ref. Setup For High Scale) to set the desired
DEADBAND value. Once the desired DEADBAND value is displayed, push
SETUP key to enter that value and go on to setup Relay as Normally Open/Closed.
After setting DEADBAND, the next parameter determines whether the channel's output relay operates as a "Normally
Open" or "Normally Closed" style relay. The relay itself is a Single Pole Single Throw (SPST) relay.