Meriam M2110L SMART LEVEL GAUGE - Manual (Page 19)

9R143 Dated 3/2011
17
P8 – DEADBAND
This register is found on the SetPoint model only. It sets the adjustable deadband for the SPDT relays. Deadband
can be set to 0%, 0.1, 0.2, 0.5, 1, 2, 5 and 10% of full scale. The relay will energize precisely at the value in its
corresponding P6 and P7 registers on increasing level. The relay will de-energize at a value equal to the
corresponding P6 and P7 register, minus the deadband value, on decreasing level. With a 0% deadband setting, the
relays will energize and reset precisely at the values in the corresponding P6 and P7 registers. During programming,
the choices found in the register correspond to the actual deadband values in percent full scale.
QUICK REFERENCE: P8, DEADBAND
Px Name Description Value Range Notes
P8 Deadband Sets the amount of deadband in
percent of full scale for relays. 0, 0.1, 0.2, 0.5, 1,
2, 5, 10% FS SetPoint model only.
0 = Disabled.
STEP BY STEP: P8, DEADBAND
Step Action Display
1 Gauge should be in the normal Measure Mode. Normal Pressure Display.
Press the PRGM/Enter
→ key.
2
If the lockout is active, the gauge will now prompt for entry of
the lockout code. Refer to “STEP BY STEP: ENTERING A
LOCKOUT CODE (When Prompted)” on page 21.
The PRGM annunciator shows at the top of the
display, and the display shows the register name
“P0”.
Press the Up
↑ or Down↓ keys repeatedly to scroll
to the desired register.
3
The Zero function (Up
↑ and Down↓) will reset the scroll to P0
and allow selection to continue.
Display shows “P8”, and the “%” annunciator is
illuminated.
4 Press PRGM/Enter
→ to open the register.
The display shows the current value.
Press the Up
↑ or Down↓ keys repeatedly to scroll
to the desired register value.
5
The Zero function (Up
↑ and Down↓) will reset the scroll to
default and allow editing to continue.
All available choices are scrolled.
(Choices indicate actual Deadband in percent of
full scale.)
6 Press the PRGM/Enter
→ key to accept the desired
value.
The value is accepted, and the register is closed.
Display shows “P8”.
7 Press the Backspace
← key to activate the register
setting and return to Measure Mode.
Normal Pressure Display.
Notes 1. After steps 2 and 3, the Backspace
← key will abort the process and return to Measure Mode.
2. After steps 4 and 5, the Backspace
← key will abort the edit and close the register.
3. After step 6, the PRGM/Enter
→ key will again open the register for edit.
4. During any programming operation, if there is no keypad activity for approximately 1 minute, the
operation is aborted and the gauge returns to Measure Mode unchanged.
SetPoint Models Only