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Summary of Contents for AMALGAMATED INSTRUMENT PM4-AM
- Page 1 PM4-AM DC Cur rent / DC Volt age Auto/Man ual Sta tion Op er a tion and In struc tion Man ual (In puts 4-20mA, 0-1V, 0-10V & 0-100V)
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Page 2: Table Of Contents
Ta ble of Con tents In tro duc tion ....... 3 Ba sic setup . -
Page 3: In Tro Duc Tion
This manual contains information for the installation and operation of the PM4-AM Auto/Manual Station. The PM4-AM is a versatile instrument which may be configured to accept inputs of DC volts (0-1V or 0-10V) or 4 to 20 mA DC or 3 wire slidewire and retransmit a direct or manually controlled analog output of DC volts (0-1V or 0-10V) or 4 to 20mA. -
Page 4: Ba Sic Setup
1 .1 Ba sic setup 1. See "Mechanical Installation" and "Electrical Installation" chapters for details of panel cut out requirement, wiring and internal link setting requirements. 2. See the first page of the "Explanation of functions" chapter for details of entering CAL and FUNC modes to gain access to the instrument setup and calibration functions. -
Page 5: Me Chan I Cal In Stal La Tion
Me chan i cal in stal la tion If a choice of mounting sites is available then choose a site as far away as possible from sources of electrical noise such as motors, generators, fluorescent lights, high voltage cables/bus bars etc. An IP65 access cover which may be installed on the panel and surrounds is available as an option to be used when mounting the instrument in damp/dusty positions. -
Page 6: Elec Tri Cal In Stal La Tion
240VAC NEU TRAL 240VAC AC TIVE RE LAY 1 RE LAY 1 EXT IN GROUND 18VDC SUPPLY IN PUT (GND) IN PUT MODEL No: PM4-AM-240-5E-A SE RIAL No: In stru ment Data La bel (ex am ple) Page 6 of 30 PM4AMMAN-1.4-0... -
Page 7: Se Lecting The In Put Range
3 .1 Se lecting the in put range Dismantle the instrument as described in Chapter 4, “Input/output configuration”. Insert the links into the appropriate location on the pin header to suit the range required. Note: All other links should be out when slidewire is selected. -
Page 8: Con Fig Uring The Out Put Board
3 .2 Con fig uring the out put board The output board has facilities for a second relay output and/or 4-20mA, 0-1V and 0-10V retransmission and/or isolated ±5V or ±12VDC supply depending on the options ordered. PCB links are fitted to the circuit board to provide data to the microprocessor and to connect the electronic components for the correct output types. -
Page 9: Con Nec Tion Ex Am Ples
3 .3 Con nec tion ex am ples 1. 2 wire 4-20mA - powered from PM4 standard 18V unregulated (25mA max) supply 1 2 3 4 5 6 7 8 9 10 11 2 WIRE 4-20mA 4-20mA SENSOR 2. 2 wire 4-20mA input - externally powered sensor Exter nal Power Supply 1 2 3 4 5 6 7 8 9 10 11... - Page 10 6. 4-20mA input - powered from optional ±12V (20mA) PM4 supply Isolated DC output (optional) Use D & F for 24VDC Use E & F for 12VDC Wire link C D E F 1 2 3 4 5 6 7 8 9 10 11 SENSOR 4-20mA 7.
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Page 11: In Put/Out Put Con Fig U Ra Tion
In put/out put con fig u ra tion If you need to al ter the in put or out put con fig u ra tion pro ceed as fol lows: 1. Re move the plug in ter mi nals from the rear of the in stru ment 2. -
Page 12: Ex Pla Na Tion Of Func Tions
Ex pla na tion of Func tions The PM4 setup and calibration functions are configured through a push button sequence. Two levels of access are provided for setting up and calibrating:- FUNC mode (simple push button sequence) allows access to commonly set up functions such as alarm setpoints. - Page 13 Function Description chng Auto/Manual se lec tion in func tion mode - see also Chap ter 7 “Auto/Man ual op er a tion”. Al lows se lec tion be tween Auto (Auto i.e. di rect trans fer be tween in put and out put) and LCAL (lo cal i.e.
- Page 14 A1Hi Alarm 1 relay high setpoint - seen only if rLY1 set to AL. Operates in both Auto and Manual mode. Displays and sets the alarm 1 relay high setpoint value. If a high alarm setpoint is not required it can be disabled by pressing the ^ and v pushbuttons simultaneously.
- Page 15 A2.SP or Relay operation independent setpoint or trailing setpoint - each alarm may be A2.tIetc. programmed to operate with an independent setpoint setting or may be linked (or trailing) to operate at a fixed difference to another relay setpoint. The operation is as follows: Alarm 1 (AI) is always independent.
- Page 16 Bargraph display high value - seen only in bargraph display instruments. bAr~ Displays and sets the bar graph high value i.e. the value on the 7 segment display at which the bargraph will reach its maximum indication (all LED’s illuminated). May be independently set anywhere within the display range of the instrument.
- Page 17 Analog retransmission output low value. rEC_ Displays and sets the analog retransmission (4 to 20mA, 0-1V or 0-10V) output low value (4mA or 0V) in displayed engineering units. For example to obtain a 4mA retransmission when the display value is 0.0 set the REC_ function to 0.0 .
- Page 18 First scaling point for 2 point scaling method. CAL1 CAL1 / SCL1 and CAL2 / SCL2 are used together to scale the instruments display, values for both must be set when using this scaling method ( USER En 4 and USER En20 functions can be used as an alternative method of scaling when the input is 4-20mA and scaling without a live input is required).
- Page 19 Second scaling point for 2 point scaling method. CAL2 The procedure for entering the second scaling point is: a. Ensure that an input signal is present at the input terminals, this will usually be at the high end of the signal range e.g. 20mA for a 4-20mA input. b.
- Page 20 Calibration offset - the calibration offset OFSt offset is a single point adjustment which can be used to alter the offset calibration scaling values across the entire measuring range without affecting the calibration slope. This method can be used instead of performing a two point calibration when a constant measurement error is found to exist across the...
- Page 21 USER 20mA input scaling without a live input. En20 This scaling method can be used with 4-20mA inputs only. The same method described in USER En 4 above can be used to scale the instrument for the display value required for a 20mA input. UCAL Uncalibration.
- Page 22 R.INP Remote input/external input function. Terminals 7 and 8 at the rear of the instrument are the remote input/external input terminals. When these terminals are short circuited, via a pushbutton or keyswitch the instrument will perform the selected remote input function. A message will flash to indicate which function has been selected when the remote input terminals are short circuited.
- Page 23 ACCS Access mode - the access mode function ACCS has four possible settings namely OFF, EASY, NONE and ALL. If set to OFF the mode function has no effect on alarm relay operation. If set to EASY the easy alarm access mode will be activated, see details at the beginning of this chapter preceding the A1Lo function.
- Page 24 Bargraph operation mode - applicable only to bargraph displays. The following choices are available for bargraph operation mode: LiuE - live input mode. The bargraph will respond to the electrical input only and will not necessarily follow the 7 segment display value. For example if the remote input is set for peak hold operation then when the remote input is closed the 7 segment display will only show the peak value but the bargraph will be free to move up and down to follow the electrical input.
- Page 25 dISP Display overrange warning flashing mode - this function is used in conjunction with the Lo and HIGH dISP functions. The dISP function can be set to FLSH or -or-. If the value set at the Lo or HIGH dISP function is exceeded and the dISP function is set to FLSH then the display value will flash on for approximately one second and off for approximately one second as a warning.
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Page 26: Func Tion Ta Ble
Func tion ta ble Mean ing of De fault Re cord Your Ini tial dis play Next dis play dis play Set tings Set tings Change between Auto or LCAL (Manual) Auto chng Auto & Manual Select remote input OFF, ON or togI (accessible R.INP function via CAL mode) - Page 27 Mean ing of De fault Re cord Your Ini tial dis play Next dis play dis play Set tings Set tings Offset to calibration Live Reading CAL OFSt Zero range limit Limit value or OFF ZERO RNGE 1000 Zero point calibration Value in memory CAL ZERO 4mA input scale...
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Page 28: Auto/Man Ual Op Er A Tion
Auto/Man ual op er a tion Note: if power is removed the mode automatically reverts to Auto on reapplying power. There are three ways to change between Auto and Manual as follows: 1. Changing between Auto and Manual using an external switch. The remote input (terminals 7 &... -
Page 29: Spec I Fi Ca Tions
DC sup ply, con sult sup plier (de pends on dis play type & op tions). Typ i cal DC con sump tion for model PM4-AM-DC-5E is 100mA at 24V and 200mA at 12V, al low dou ble these cur rents for switch on surge. -
Page 30: Guar An Tee & Ser Vice
Guar an tee & ser vice The product supplied with this manual is guaranteed against faulty workmanship for a period of 2 years from the date of dispatch. Our obligation assumed under this guarantee is limited to the replacement of parts which, by our examination, are proved to be defective and have not been misused, carelessly handled, defaced or damaged due to incorrect installation.
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