User manual HONEYWELL PST

[. . . ] ELECTRONIC PRESSURE SWITCHES/TRANSMITTERS INSTALLATION INSTRUCTIONS PST. . . and PST. . . -R series Electronic Pressure Switches and Transmitters are microprocessorcontrolled pressure measurement devices suitable for an extremely wide range of applications, including the precision-adjustment and monitoring of system pressures as well as the monitoring and control of pumps and compressors. All versions feature an integrated LCD display, two LED indicator lights presenting the switching and alarm status, and an integrated rotary/push button for parameterizing and configuring the device according to user needs. All versions feature two switching outputs (OUT1 and OUT2) configurable as normally-open (N. O. ) / normallyclosed (N. C. ) high-side/low-side or push-pull / inverted push-pull switches. [. . . ] OUT1[2], the analog output, and the switch-over contact relay; this is because the attenuation has a direct influence upon the measurement sensor. The former and new measurement values (calculated values) are always given a weight of 100%. Mathematically, the filter attenuation can be expressed as follows: R[x] = M[x] * (100% - F) + R[x - 1] * F where: · "F" is the filter attenuation in percent, · "M[x]" is the measurement value as a function of the time "x", · "R[x - 1]" is the displayed / outputted measurement value (calculated value) at the previous time "x - 1", and · "R[x]" is the displayed / outputted measurement value (calculated value) at the time "x". Example 1: Assuming that the filter attenuation "F" has been set to 10%, then 90% of the new measurement value "M[x]" and 10% of the last previously-calculated value "R[x - 1]" will be factored into the new displayed / outputted measurement value "R[x]". · · The text "CODE" then means that a code has not yet been defined and that the user is free to define one. The text "LOCK" then means that a code has already been defined and, moreover, that the device has already been locked. Assuming that the text "CODE" has appeared, you must now press the RPB in order to confirm that you do indeed wish to define a code. The desired code must now be defined by sequentially rotating (to select) and pressing (to confirm) the RPB for each digit of the desired code (which must be a 4-digit number between 0001 and 9999). After the fourth digit of the desired code has been defined, the text "LOCK" will appear. You should then rotate the RPB CW one tick, whereupon the "EXIT" screen (Fig. After confirming this by pressing the RPB, the device will re-enter the basic mode, and the 1-minute grace period will immediately become effective (see also section "Time-Out Function" on page 7). If a non-zero code has been defined, the following will apply: · · If the 1-minute grace period is allowed to elapse, or if the device is turned OFF and then ON again, the device will immediately become locked for parameterization and configuration. It is then no longer possible to make changes to parameters or configurations without first unlocking the device; rather, parameters can then be viewed, only. Thus, a parameter can be selected (and will also be displayed), but after pressing the RPB, instead of the value changing, the text "LOCK" will appear in the screen for 1 second, after which the unchanged value will re-appear. 9 MU1B-0188GE51 R0803 PST. . . AND PST. . . -R ELECTRONIC PRESSURE SWITCHES/TRANSMITTERS In order to be able to again change parameters, it is necessary to unlock the device (also section "Unlocking a Locked Device" below). Unlocking a Locked Device A device locked for parameterization and configuration can be unlocked by inputting the correct code. This is done by going through the basic mode's sequence of screens (Fig. 35) and stopping at the last screen, in which the text "CODE" (instead of "EXP") will appear, thus prompting the user to input the correct code. You must now press the RPB in order to confirm that you wish to input the code. The correct code must now be inputted by sequentially rotating (as appropriate) and pressing the RPB for each digit of the code (which must be a 4-digit number between 0001 and 9999). If you have inputted the incorrect code, the device will remain in the basic mode and display the text "CODE". Inputting the correct code will place the device into the expert mode. The 1-minute grace period will then immediately become effective again. The user then has the option of either remaining in the expert mode (where configurations can be viewed and changed) or of entering the basic mode. [. . . ] Additional information and technical documentation in electronic format are available under the following URL's: www. honeywell. de/fema and www. fema. biz MASTER CODE In the event that you have lost or forgotten your code, you can also unlock the device by means of the master code obtained from Honeywell (when contacting Honeywell, please state your device's serial number). ACCESSORIES The following accessories are not included in the shipment, but can be ordered: · · · · · A-coded 5-prong M12 female angled connector. B-coded 4-prong M12 female angled connector for relay, with pre-attached connection cable. additional protective caps for unused connections (in order to meet the requirements of the IP65 protection rating). 66. 40 25 8. 4 4. 5 4. 5 50 58 50 44 20 80 100 60 Fig. [. . . ]