28
9900 Transmitter
NOTE:
Defaults for most relay functions are dependent upon sensor type and are not listed here.
RELAY Menu
(pH, LEVEL/VOL, COND/RES, SALINITY and DO only.) Select source for each of R1, R2 and R3 outputs.
Choose pH/TEMP, LEVEL/VOLUME, COND/TEMP, SAL/TEMP, (DO)PPM/TEMP.
Defaults = pH, COND, LEVEL, SAL, PPM.
(ALL) Set Open Collector (R1) as Normally Open or Normally Closed. Default = OPEN.
(ALL) Select the desired mode of operation for the open-collector (R1) output (OFF, LOW, HIGH,
WINDow IN, WINDow OUT, CYC LOW (except FLOW), CYC HIGH, PROP PuLSe, VOL PuLSe, PWM,
TOTAL, USP, ERROR mode) (See chart on page 29). Default = OFF. Continue stepping through to
select R2 and R3 output modes. When MODE is set to ERROR, delays energizing relay until after
ON DELAY time expires if sensor problem is detected. See Cycle High/Low discussion on page 20.
(ALL) (Shown if LOW, WIND IN/OUT or CYC LOW mode)
Relay turns on if process measurement goes lower than this value. Set desired value.
NOTE:
The corresponding indicator lights do not light up in PROP PLS and PWM modes.
The LEDs light up only when the Test Relay options are selected.
(ALL) (Shown if HIGH or WIND IN/OUT mode)
Relay turns on if process measurement goes higher than this value. Set desired value.
NOTE:
The corresponding indicator lights do not light up in PROP PLS and PWM modes.
The LEDs light only when the Test Relay options are selected.
(FLOW only) (Shown if CYC HIGH or VOL PLS mode)
Amount of accumulated
fl
ow that must be counted before a pulse is sent out.
Relay turns on if
fl
ow volume exceeds this value. Set desired value. Default = 100.00.
(ALL) (Shown if LOW, HIGH, WIND IN/OUT, CYC LOW/HIGH or USP mode)
Hysteresis prevents the system from chattering around the set point.
Set amount (in units of measure from INPUT Mode) to add to SET LOW or SET HIGH values.
(COND/RES only) (Shown only in USP mode)
Relay turns on if USP value drifts by this value away from USP limit.
See USP Limits discussion in the Appendix.
(ALL) (Shown if Low, High, WIND IN/OUT, CYC LOW/HIGH or Error mode)
Set seconds (up to 9999.9) to wait before activating relay.
(ALL except PRESSURE) (Shown only if PROP PLS mode)
Set minimum setpoint value for proportional pulsing.
(ALL except PRESSURE) (Shown only if PROP PLS mode)
Set maximum setpoint value for proportional pulsing.
(ALL except PRESSURE) (Shown only if PROP PLS mode)
Set desired maximum pulse rate (300 max)
NOTE:
Pulse width
fi
xed at 100 ms.
(ALL except PRESSURE and FLOW) (Shown only if PWM mode)
Set minimum value for pulse width modulation.
(ALL except PRESSURE and FLOW) (Shown only if PWM mode)
Set maximum value for pulse width modulation.
The following can individually be set for each relay (R1 = open collector, R2/R3 = Relay Module)
Common Menus
