Configuration using the PC |
0 as the minimum, 10 as the maximum, with Units set to read ‘thousand’ as the prefix before gallons.
Once the range of the decimal scale has been entered, then the high and low setpoints can follow. Both setpoints can be used within a single point. If the low setpoint is not required, set it to the decimal minimum; if the high setpoint is not needed, set it to the decimal maximum.
Default Decimal Values:
Minimum: 0
Maximum: +100.0
Low Setpoint: +25.0
High Setpoint: +75.0
Hysteresis
Hysteresis is a quick method of establishing the reset values for the high and low setpoints. After an analog reading has exceeded the setpoint, either high or low, it must pass through the reset value before it is considered to have returned to normal. This prevents a reading that is hovering around a setpoint from constantly going in and out of alarm. The more unstable the reading, the larger should be the hysteresis.
Hysteresis is calculated as a percentage of the decimal span and then used as an offset from the setpoint. For the low setpoint, the reset will be above the setpoint and for a high setpoint, the reset level will be below.
Default Hysteresis: 10% of decimal span.
Units
If you require engineering units to be announced after the numeric value of the Analog Point, set them in the Units section. Available units are listed in the Points - Totalizer section.
On/Off Output Point
In addition to the common settings described previously, there are two DTMF control codes used with an On/Off output point.
DTMF On Code
When the Cv2 receives the DTMF On code, it sets the output port to the On state. After the code has been received and the output port set, the Cv2 announces the current status of the output.
This code can be 1 to 7 digits in length and may use any of the 16 DTMF digits including A, B, C, and D.
Default DTMF On Code: an empty string - no On Code.
B1272M001 | BARNETT ENGINEERING LTD. | ProTalk Cv2 |
