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| UAP1093 | Air Gas Ration Alarm Device Natural gas requires around 10 volumes of air per volume of gas for correct combustion. If the ratio of combustion air flow to natural gas flow drops below a set ratio, unburnt combustibles may be present in the flue gas. For some burners, ... |
| UAP1120 | Average Of Two With Drop Out Input: 2 4-20mA Output: 4-20mA = average of 2 inputs. If one input drops below 4mA, then the output is the other input only. User Adjustments All measurements are normalised to 0-100%. The relays may be configured to operate off CH1, CH2 or ... |
| UAP1112 | Current Ratio Alarm / Latch A DC haul truck has a retard grid which is used to dissipate heat when the truck is generating electricity in retard mode. The retard grid is a of heavy duty resistors combined with a DC blower that is connected across part of the grids that ... |
| UAP0019 | Inverted Can Detector 1 Operating Description The state of pulse input 1 P1, and pulse input 2 P2, are continually monitored. If both inputs are high at the same time then a inverted can has been detected. When a inverted can has been detected the value 100 is saved ... |
| UAP1107 | Multipoint Temperature Alarm With Latch EMU 1 is set up as "master" in local mode controlling EMU 2 as a slave. The EMU305 cycles around the 16 thermocouple inputs, switching these inputs to the output. The output is measured by the USC701 (CH1 set to measure T/C ... |
| UAP1087 | Positive Rate Of Change Alarm DESCRIPTION The USC701 has a 0.2 – 1.0Vdc input and two alarm outputs. The input signal represents a 0 -10m level of water. Each alarm has a user set trip point with ON and OFF delays. These delay times are user adjustable and are ... |
| UAP0010 | Reverse Acting Relay with Long Off Delay Example Because the on and off delays on the relays only go up to 2330 seconds this example uses an equation to obtain a one hour delay. Operating Description If input on CH1 is below a low limit then RY1 should switch on. If input on CH1 then goes ... |
| UAP1070 | Select Maximum CH1 CH2 Plus Range Check Input to CH1 and CH2 is equal to type K thermocouple ranged 0-1200°C. Output is equal to 4-20mA representing 0-1200°C selected from the highest measurement from CH1 and CH2. If CH1 or CH2 is out of range 0-1200 then the output ... |
| UAP1069 | Shaft Groove Depth Controller A Pepperl + Fuchs analogue proximity sensor is mounted on to shaft grooving machinery. Tare Adjustment The cutting head is lowered until just touching the shaft and P1 is pressed to take zero measurement. Set Cut Depth Constant a is used to ... |
| UAP0012 | State Logic; Suction Protector plus Oil Seal Monitor This example is used in a pumping station to monitor a water pump. It uses fail safe logic (relay closed when good) and is part of an overall control system.] Operating Description and State Diagram CH2 is a standard resistance alarm. CH1 uses ... |