AMALGAMATED INSTRUMENT PM4-AM Guide

PM4-AM
DC Current / DC Voltage
Auto/Manual Station
Operation and Instruction Manual
(Inputs 4-20mA, 0-1V, 0-10V & 0-100V)

Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Basic setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Mechanical installation . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical installation . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Selecting the input range. . . . . . . . . . . . . . . . . . . . . . 7
Configuring the output board. . . . . . . . . . . . . . . . . . . . 8
Connection examples . . . . . . . . . . . . . . . . . . . . . . . 9
Input/output configuration . . . . . . . . . . . . . . . . . . . . . . . 11
Explanation of Functions . . . . . . . . . . . . . . . . . . . . . . . 12
Function table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Auto/Manual operation . . . . . . . . . . . . . . . . . . . . . . . . . 28
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Technical Specifications . . . . . . . . . . . . . . . . . . . . . 29
Output Options . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Physical Characteristics . . . . . . . . . . . . . . . . . . . . . 29
Guarantee & service . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Page 2 of 30 PM4AMMAN-1.4-0

1 Introduction
This manual contains information for the installation and operation of the PM4-AM Auto/Manual
Station.ThePM4-AM isa versatileinstrumentwhichmaybeconfiguredtoacceptinputsofDCvolts (0-1Vor
0-10V) or 4 to 20 mA DCor 3 wire slidewire and retransmit adirect or manually controlled analog output of
DC volts (0-1V or 0-10V)or 4 to 20mA. The instrument may be calibrated todisplay the input in engineering
units. A standard inbuilt relay provides an alarm/control function, an optional second relay and excitation
voltage may also be provided. Refer to Chapter 7 “Auto/Manual operation” for details of Auto/Manual
switching options.
Unless otherwise specified at the time of order, your PM4 has been factory set to a standard
configuration. Like all other PM4 series instruments the configuration and calibration is easily changed by
the user. Initial changesmay require dismantling the instrument to alter PCB links, other changes aremade
by push button functions.
Fullelectricalisolation betweenpower supply, input voltage or currentandretransmission outputis
provided by the PM4, thereby eliminating grounding and common voltage problems. This isolation feature
makes the PM4 ideal for interfacing to computers, PLCs and other data acquisition or control devices.
The PM4seriesof Panel Mount Monitorsare designed for high reliability in industrial applications.
The high brightness LEDdisplay provides good visibility, even in areas with high ambient light levels. The
wide combination of input to output voltage and current ranges allows the PM4 to perform a signal
conversion as well as Auto Manual function.
Page 3 of 30 PM4AMMAN-1.4-0
INPUT
4-20mA
0-1V
0-10V
0-100V
or Slidewire OUTPUT 4-20mA
0-1V
0-10V
INPUT
4-20mA
0-1V
0-10V
0-100V
or Slidewire OUTPUT
4-20mA
0-1V
0-10V
Pushbutton
Manual
Control
Pushbutton
Manual
Control
AUTOMATIC MODE
MANUAL MODE
The incoming signal
is buffered
(and rescaled if required)
and retransmitted.
The output can
be incremented or
decremented by
pressingthe front
panel arrow keypads.
F
1
2
3
4
P
100
75
50
25
0
667*5
%
%
P F
Process Units
5 6 3 @ 0
Auto
when lit
Auto
when lit Manual
when lit
Manual
when lit

1 .1 Basic 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.
3. Calibrate the instrument if required. See CAL1 / CAL2 and USER En4 / USER En20 methods of
calibration in the "Explanation of functions" chapter.
4. See the "Auto/Manual operation" chapter for details of methods of switching between Auto and
Manual output.
Page 4 of 30 PM4AMMAN-1.4-0

2 Mechanical installation
If a choice of mounting sitesis available then choose a site asfar away aspossible from sources of
electrical noise such as motors, generators, fluorescent lights, high voltage cables/bus bars etc. An IP65
access cover which maybe installed on the panel and surrounds is available as an option to be used when
mounting the instrumentin damp/dusty positions.A wall mountcaseis available, as an option,for situations
in which panel mounting is either not available or not appropriate. An optional portable carry case is also
available for panel mount instruments.
Prepareapanelcutoutof45mmx92mm+1mm/-0mm(seediagrambelow).Inserttheinstrument
intothecutoutfromthefrontofthepanel.Then,fromtherearoftheinstrument,fitthetwo mountingbrackets
into the recess provided (see diagram below). Whilst holding the bracket in place, tighten the securing
screws being careful not to over-tighten, as this may damage the instrument.
Hint:usetheelasticbandprovidedtoholdthemountingbracketinplacewhilsttighteningsecuringscrews.
Page 5 of 30 PM4AMMAN-1.4-0
92mm
45mm PANEL CUT OUT
92mm
45mm
PANEL
CUT
OUT
115mm
104mm
53mm
44mm
96mm
9mm
9.5mm
max
48mm 91mm
111mm
10mm
Mounting bracket
(2 off)
Horizontal mounting
Vertical mounting
(bar graph displays)

3 Electrical installation
The PM4 PanelMeter isdesigned for continuous operation and nopower switch is fitted to the unit.
Itisrecommendedthatanexternalswitchandfusebeprovidedtoallowtheunittoberemovedforservicing.
The terminalblocks allow for wiresof up to2.5mm
2
to befitted.Connectthewiresto the appropriate
terminals as indicated below. Refer to other details provided in this manual to confirm proper selection of
voltage, polarity and input type before applying power to the instrument. When power is applied the
instrument will cycle through a display sequence, indicating the software version and other status
information, this indicates that the instrument is functioning.
Page 6 of 30 PM4AMMAN-1.4-0
1 MAINS EARTH A OUTPUT V/I -
B OUTPUT V/I +
2 240VAC NEUTRAL
3 240VAC ACTIVE
5 RELAY 1 COM
6 RELAY 1 N/O
7 EXT IN
8 GROUND
9 18VDC SUPPLY
10 INPUT (GND) -
11 INPUT +
MODEL No: PM4-AM-240-5E-A SERIAL No:
SETUP
PUSHBUTTONS
A
B HC D E F J K
1 2 3 4 5 6 7 8 9 10 11
MAINS EARTH
AC ACTIVE
AC NEUTRAL COM RELAY 1
N/O
EXT-IN GND
TRANSMITTER
SUPPLY +
INPUT -
INPUT +
ISOLATED
RETRANSMISSION
-
+
(DC+)
(DC-)
Instrument Rear Panel
Instrument Data Label (example)

3 .1 Selecting the input 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.
Page 7 of 30 PM4AMMAN-1.4-0
LK1
LK6
LK7 LK8
EX
SLW
X10
100
10V
1V
Transmitter
Supply Output
Selected
Slidewire
Excitation
Selected
LK7LK7 LK8LK8
EXEX
SLW
SLW
LK1 LK1 LK1 LK1 LK1LK1
LK6 LK6 LK6 LK6 LK6LK6
X10 X10 X10 X10 X10X10
100 100 100 100 100100
10V 10V 10V 10V 10V10V
1V 1V 1V 1V 1V1V
±20mA or 4-20mA
input selected ±2mA input selected ±100mV Input
Selected ±1V Input
Selected ±10V Input Selected ±100V Input Selected
Note: All other links should be out when slidewire
isselected.Slidewireexctitationvoltageisapprox.
1.25V across terminals 9 & 10.

3 .2 Configuring the output 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 correctoutput types.It maybe necessarytoalterthe PCB links to change the
analogoutput or DCvoltageoutput (see linksettingsbelow). See the “Input/output configuration”section for
details on dismantling the instrument.
Page 8 of 30 PM4AMMAN-1.4-0
LK10
Note: For 24V (LK10 in)
or 10V (LK10 out)
connect across ouput +
and - (PinsD & F)
±5V ouput ±12V ouput
LK10
Relay output
Analog Links
not used in this
option
DC Links
(12, R12, A12 &
AR12 options)
Digital Links
LK10
LINKIN FOR12V
VOLTS

3 .3 Connection examples
1. 2 wire 4-20mA - powered from PM4 standard 18V unregulated (25mA max) supply
2. 2 wire 4-20mA input - externally powered sensor
3. 3 wire 4-20mA input - externally powered sensor
4. 4 wire 4-20mA input - externally powered sensor
5. 3 wire 4-20mA - powered from PM4 standard 18V unregulated (25mA max) supply
Page 9 of 30 PM4AMMAN-1.4-0
1 2 3 4 5 6 7 8 9 10 11
3 WIRE
4-20mA
SENSOR
External Power
Supply
+
+
-
-
4-20mA
1 2 3 4 5 6 7 8 9 10 11
2WIRE
4-20mA
SENSOR
External Power
Supply
+
+
-
-
4-20mA
1 2 3 4 5 6 7 8 9 10 11
2 WIRE
4-20mA
SENSOR
+
-
4-20mA
1 2 3 4 5 6 7 8 9 10 11
3 WIRE
4-20mA
SENSOR
Signal/
output
+V
-
4-20mA
1 2 3 4 5 6 7 8 9 10 11
4 WIRE
4-20mA
SENSOR
External Power
Supply
+
+
-
-
4-20mA

6. 4-20mA input - powered from optional ±12V (20mA) PM4 supply
7. DC voltage input
8. Slidewire input (excitation voltage 1.25VDC)
9. Remote input
Page 10 of 30 PM4AMMAN-1.4-0
1 2 3 4 5 6 7 8 9 10 11
Momentary or
latching action
switch
1 2 3 4 5 6 7 8 9 10 11
Note: Links LK7 &
LK8 Must be set
to SLIDE WIRE for
Slide Wire input
all otherlinks should
be out.
AB HC D E F J K
1 2 3 4 5 6 7 8 9 10 11
SENSOR
Use D & F for 24VDC
Use E & F for 12VDC
Isolated DC output
(optional)
Wire link
+
-
- +
4-20mA
1 2 3 4 5 6 7 8 9 10 11
SENSOR/
INPUT
DEVICE
+
-

4 Input/output configuration
Page 11 of 30 PM4AMMAN-1.4-0
Remove earth screw
which passes through the
case then slide out
the printed circuit board
If you need to alter the input or output configuration proceed as follows:
1. Remove the plug in terminals
from the rear of the instrument
2. Remove 4 x self tapping screws from
back cover, remove back cover by
pulling it away from the instrument
3. Using a screwdriver, remove
the earth screw which passes
through the case then slide out
the board or boards
4. Configure the PCB links as required, see appropriate chapter
5. Slide PCB back into the case
6. Replace the earth screw which passes through the case
7. Refit back cover and fix with the self tapping screws
8. Plug the terminal strips back into the rear of the instrument

5 Explanation of Functions
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.
CAL mode (power up sequence plus push button sequence) allows access to all functions
including calibration parameters.
The front panel push buttons are used to alter settings. Once CAL or FUNC mode has been
entered you can step through the functions, by pressing and releasing theFpush button, until the required
functionisreached.Changestofunctionsaremadebypressingthe^orvpushbutton(insomecasesboth
simultaneously) when the required function is reached.
Page 12 of 30 PM4AMMAN-1.4-0
Entering ModeCAL Entering ModeFUNC
1.Remove power from
the instrument. Hold in the
button and reapply power.
The display will briefly indicate
as part of the
"wake up messages" when
the message is seen
you can release the
button.Move to step 2below.
2.When the "wake up"
messages have finished
and the display has settled
down to its normal reading
press, then releasethe
button.
Move to step 3below.
1. When the "wake up"
messages have finished
and the display has settled
down to its normal reading
press, then release the
button.
3.Within 2 seconds of
releasing the button
press, then release
the and buttons
together.The display will
now indicate followed
by the first function.
2.Within 2 seconds of
releasing the button
press, then release
the and buttons
together.The display will
now indicate followed
by thefirst function.
^
^
^ ^
FUNC
FUNC
F
F
F
FF
CAL
CAL
Note: If step 1 above has been completedthen the
instrument will remain in this mode state until
power is removed. i.e. there is no need to repeat step 1
when accessing function unless power hasbeenremoved.
CAL
No special power up procedure
is required to enter mode.FUNC

Function Description
chng Auto/Manual selection in function mode - see also Chapter 7 “Auto/Manual
operation”.
Allows selection between Auto (Auto i.e. direct transfer between input and output)
and LCAL (local i.e. Manual mode). At the chng function use the ^or v
pushbuttons to select Auto or LCAL. Once the required selection is made press
the Fbutton to save the selection. When changing from Auto to Manual, the Manual
value is set to the current Auto value thus achieving a bumpless transfer function.
When changing from Manual to Auto, the Manual output will ramp towards the Auto
value at a programmable rate (see dLAY function).
Notes: The chnG function will not be seen unless the first R.INP function (shown
below) is set to toGI.
When entering the functions below ensure that you do not accidentally alter the
chng setting, continue by pressing the Fbutton to step through the functions.
R.INP Select operation of external input (e.g. external switch or relay between EXT IN and
GND, terminals 7 & 8) - see also Chapter 7 “Auto/Manual operation”.
This function can be set to either OFF, ON ortogI and determines what external
input operation is required to switch from Auto to Manual or vice versa.
If set to OFF the unit will be in the Auto mode when the external input is open and
will be in Manual mode when the external input contacts are closed.
If set to ON the unitwill be in the Auto mode whilst the external input is closed and
will be in Manual mode when the external input contacts are open.
If set to togI the unit will toggle from Auto to Manual or vice versa every time the
external input is closed (momentary action).
Notes: If this function is set to OFF or ON then the chng function will not be
available.
There is a second R.INP function described later in this chapter, this second
function must be set to NONE if the OFF, ON or togI operations described above
are to be used.
rLy1 Select operation of relay 1.
This function can be set to either AL or ctrI. When set to AL normal alarm
operation as described in this chapter canbe followed e.g. high and low setpoints.
Selecting ctrI gives Auto/Manual mode indication via the relay open or closed
state. In this mode Alarm relay 1 will be de-energised (open contacts) when the
instrument is in the Auto mode and energised (closed contacts) in the Manual mode.
Notes: If this function is set to ctrI the Alarm 1 setpoint functions will not be
accessible. You may select A1n.o or A1n.c to change the relay contact status as
required (i.e. change to open contacts indicating Manual and closed contacts
indicating Auto). To change the status it will be necessary to temporarily set rLY1
to AL, enter FUNC mode and select A1n.o or A1n.c as required, once selected set
rLY1 back to ctrI.
The A1 alarm annunciator does not operate when the rLY1 function is set to ctrI
but the Auto/Manual lights will change when the mode changes.
A1Lo Alarm 1 relay low setpoint - seen only ifrLY1 set to AL. Operates in both Auto and
Manual mode.
Displays and sets the alarm 1 relay low setpoint value. If a low alarm setpoint is not
required it can bedisabled by pressing the ^and vpushbuttons simultaneously.
When the alarm is disabled the display will indicate OFF. Alarm 1 relay will trip when
the displayed value is equal to or lower than the A1Lo setpoint value.
Page 13 of 30 PM4AMMAN-1.4-0

A1Hi Alarm 1 relay high setpoint - seen only ifrLY1 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 canbe disabled by pressing the ^and vpushbuttons
simultaneously. When the alarm is disabled the display will indicateOFF. Alarm 1
will trip when the displayed value is equal to or higher than the A1Hi setpoint value.
A2Lo.
A3Lo,
A4Lo
Alarm 2, 3 & 4 relay low setpoint. Operates in both Auto and Manual mode.
Displays and sets the optional alarm relays low setpoint value. If a low alarm
setpoint is not required it can be disabled by pressing the ^and vpushbuttons
simultaneously. When the alarm is disabled the display will indicateOFF. The
selected alarm relay will trip when the displayed value is equal to or lower than the
low setpoint value.
A2Hi,
A3Hi,
A4Hi
Alarm 2, 3 &4 relay high setpoint. Operates in both Auto and Manual mode.
Displays and sets the optional alarm relays high setpoint value. If a high alarm
setpoint is not required it can be disabled by pressing the ^and vpushbuttons
simultaneously. When the alarm is disabled the display will indicateOFF. The
selected alarm relay will trip when the displayed value is equal to orhigher than the
low setpoint value.
A1Hy Alarm 1 relay hysteresis [deadband] - seen only ifrLY1 set to AL.
Displays and sets the alarm 1 relay hysteresis limit and is commonfor both high
and low setpoint values. In the high alarm mode once the alarm is tripped the input
must fall below the setpoint value minus the hysteresis value to reset the alarm. In
the low alarm mode once the alarm is tripped the input must rise above the setpoint
value plus the hysteresis value to reset the alarm. The hysteresis units are
expressed in displayed engineering units.
A2Hy,
A3HY,
A4HY
Alarm 2, 3 & 4 relay hysteresis [deadband].
Displays and sets the optional alarm 2, 3 & 4 hysteresis limit (as per A1Hy).
A1tt Alarm 1 relay trip time - seen only ifrLY1 set to AL.
Displays and sets the alarm 1 trip time and is common for both alarm 1 high and low
setpoint values. The trip time is the delay before the alarm will trip. The alarm
condition must be present continuously for the trip time period before the alarm will
trip. This function is useful for preventing an alarm trip due to short non critical
deviations from setpoint. The trip time is selectable over 0 to 60 seconds.
A2tt,
A3tt,
A4tt
Alarm 2, 3 & 4 relay trip time.
Displays and sets the optional alarm 2, 3 & 4 trip time (as per A1tt).
A1n.o or
A1n.c Alarm 1 relay normally open or normally closed - seen only if rLY1 set to AL
Displays and sets the alarm relay 1 action to normally open (de-energised) or
normally closed (energised), when no alarm condition is present.
A2n.o or
A2n.c
A3n.o or
A3n.c
A4n.o or
A4n.c
Alarm 2, 3 & 4 relay normally open or normally closed.
Displays and sets the optional alarm relay 2, 3 & 4 action to normally open
(de-energised) or normally closed (energised), when no alarm condition is present.
Page 14 of 30 PM4AMMAN-1.4-0

A2.SP or
A2.tIetc. Relay operation independent setpoint or trailing setpoint - each alarm may be 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. Alarm 2 (A2) may be independent or may be
linked to Alarm 1. Alarm 3 (A3) may be independent or may be linked to Alarm 1 or
Alarm 2. Alarm 4 (A4) may be independent or may be linked to Alarm 1, Alarm 2 or
Alarm 3. The operation of each alarm is selectable within the Function Setup Mode
by selecting, for example, (Alarm 4) A4.SP = Alarm 4 normal setpoint or A4.t1 =
Alarm 4 trailing Alarm 1 or A4.t2 = Alarm 4 trailing Alarm 2 or A4.t3 = Alarm 4
trailing Alarm 3. For trailing set points the setpoint value is enteredas the difference
from the setpoint being trailed. If the trailing setpoint is to operate ahead of the prime
setpoint then the value is entered as a positive number and if operating behind the
prime setpoint then the value is entered as a negative number. Forexample, with
Alarm 2 set to trail alarm 1, if A1Hi is set to 1000 and A2Hi is set to 50 then
Alarm 1 will activate at 1000 and alarm 2 will activate at 1050 (i.e. 1000 + 50). If
Alarm 2 had been set at -50 then alarm 2 would activate at 950 (i.e. 1000 - 50).
See the trailing alarm table which follows.
Note: trailing alarm relay 1 will not operate if rLY 1 function is set to ctrI (control).
bAr_ Bar graph displaylow value - seen only in bargraph display instruments.
Displays and sets the graph low value i.e. the value
on the 7 segment display at which the bargraph will
start to rise. This may be independently set
anywhere within the display range of the
instrument.
Note: The bAr~ and bAr_ settings are
referenced from the 7 segment display
readings, not the bargraph scale values.
The bargraph scale may scaled differently to
the 7 segment display, as shown on the right
where bargraph scale is 0 to 100 yet the
display is showing 675.3. In this example
the bargraph scale may be indicating
percentage fill of a tank whilst the 7 segment
display is indicating actual process units.
The bargraph is available as a 20 segment
straight bar or 16 segment circular bargraph
See the bAr tYPE function which follows for
bargraph operation modes.
Page 15 of 30 PM4AMMAN-1.4-0
F
1
2
3
4
P
100
75
50
25
0
6 7 % 3
%
7 Segment
Display
Bargraph
Scale
bAr~
bAr_
LED 3 lit
indicates
Auto mode
LED 4 lit
indicates
manual
mode
Trailing Alarm Table
Showing Possible Alarm Assignments
A2 A3 A4
A1 A2.t1 A3.t1 a4.t1
A2 A3.t2 A4.t2
A3 a4.t3
1 2 3 4
F
P
bAr~
bAr_
Bargraph starts
at this segment
Bargraphends
at this segment

bAr~ Bargraph display high value - seen only in bargraph display instruments.
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.
bAr tYPE Bar graph display operation mode - seen only in bargraph display instruments.
Allows selection of bargraph operation mode choices are:
bAr - conventional solid bargraph display i.e. all LED’s illuminated when at full
scale. e.g.when scaling the display use the
bAr_ and bAr~ functionse.g. bAr_
= 0 and bAr~ = 100 will give a bargraph with no segments lit at a 7 segment
displayreadingof
0 andall segmentslitwitha7segmentdisplayreadingof 100 .
S.dot - single dotdisplay.A singlesegment will be littoindicate the inputreadings
position on the scale. e.g. when scaling the display use the bAr_ and bAr~
functions e.g. bAr_ = 0 and bAr~ = 100 will give a bargraph with the bottom
segment lit at a 7 segment display reading of 0 and the top segment lit with a 7
segment display reading of
100 .
Note: this could also be set up as a centre zero single dot display by entering a
negative value and positive value. e.g. bAr_ = -100, bAr~ = 100.
d.dot - double dot display. Two segments will be lit to indicate the input reading
position on the scale. The reading should be taken from the middle of the two
segments. e.g. when scaling the display use the
bAr_ and bAr~ functions e.g.
bAr_ = 0 and bAr~ = 100 willgivea bargraphwith the bottomtwo segments lit at
a 7 segment display reading of 0 and the top two segments lit with a 7 segment
display reading of
100 .
Note: this could also be set up as a centre zero single dot display by entering a
negative value and positive value. e.g. bAr_ = -100, bAr~ = 100.
C.bAr -centrebardisplay. Thedisplay willbe asolidbargraphbutwill have itszero
point in the middle of the display. If the seven segmentdisplay value is positivethe
bargraph will rise. Ifthesevensegmentdisplayvalueis negativethen the bargraph
will fall.e.g. whenscaling thedisplayusethe
bAr_ and bAr~ functionse.g. bAr_
= 0 and bAr~ = 100 will giveabargraph with allthebottom halfsegments lit at a7
segment display reading of
-100 and all the top segments lit with a 7 segment
display reading of 100 .
P.SEt Preset value - a preset value can be entered at this function. If the remote input
( R.INP function) or P button ( P.but function) is programmed to P.SEt then
operation of the remote input or P button will cause the display to change to the
preset value. Any change in input from this point will cause a variation above or
below the preset value. For example with a display showing a value of 50 at a 12mA
input if the P.SEt function is set to 70 and the remote function is set to P.SEt then
once the remote input is operated an input of 12mA will now have a display value of
70.
brgt Display brightness.
Displays and sets the digital display brightness. The display brightness is selectable
from 1 to 15, where 1 = lowest intensity and 15 = highest intensity. This function is
useful for improving the display readability in dark areas or to reduce the power
consumption of the instrument.
duLL External/remote input display brightness.
Displays and sets the level for remote input brightness switching, see
R.INP
function. When the remote input is set to dULL the remote input can be used to
switch between the display brightness level set by the brGt function and the
display brightness set by the dULL function. The display brightness is selectable
from 0 to 15 , where 0 = lowest intensity and 15 = highest intensity. This function is
useful in reducing glare when the display needs to be viewed in both light and dark
ambient light levels.
Page 16 of 30 PM4AMMAN-1.4-0

rEC_ Analog retransmission output low value.
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 .
rEC~ Analog retransmission output high value.
Displays and sets the analog retransmission (4 to 20mA, 0-1V or 0-10V) output high
value (20mA, 1V or 10V) in displayed engineering units. For example to obtain a
20mA retransmission when the display value is
50.0 set the REC_ function to
50.0 .
REC dLAY Manual to Auto ramp delay.
Sets the delay time for the Manual to Auto ramp (1 to 9999 seconds). This sets the
time it will take to ramp over the entire retransmission output range. For example if
set to
30 it would take 30 seconds for the retransmission to change from 4mA to
20mA when switched from Manual to Auto operation.
drnd Display rounding.
Displays and sets the display rounding value. This value may be set to 1 - 5000
displayed units. Display rounding is useful for reducing the instrument resolution
without loss of accuracy, in applications where it is undesirable to display to a fine
tolerance. For example if set to
10 the instrument will display only in multiples of
10). Note that this function operates in Auto mode only i.e. there is no display
rounding when the pushbuttons are used to vary the output.
dCPt Decimal point selection.
Displays and sets the decimal point position. By pressing the
^ or v pushbuttons
the decimal point position may be set. The display will indicate as follows: 0 (no
decimal point), 0.1 (1 decimal place), 0.02 (2 decimal places), 0.003 (3 decimal
places).
FLtr Digital filter.
Displays and sets the digital filter value. Digital filtering is used for reducing
susceptibility to short term interference. The digital filter range is selectable from 0 to
8 , where 0 = none and 8 = most filtering. A typical value for the digital filter would be
3 .
DISP
unit
Display unit.
Certain display unit characters can be selected if required, to display temperature
units. Choices are:
NONE i.e. no display units e.g. 2345
“C e.g. 45"C
“F e.g. 18"F
" e.g. 123"
C e.g. 4%3C
F e.g. 237F
Note that when a display unit is chosen it will take up one or two of the available
display digits, this may limit the maximum or minimum value which can be displayed.
If the number becomes too large to display then an error message -or- will appear
on the display.
Page 17 of 30 PM4AMMAN-1.4-0

CAL1 First scaling point for 2 point scaling method.
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).
The CAL1 function sets the first calibration point for live input calibration. When
using this method a signal input must be present at the input terminals. Note: CAL1
and CAL2 can be set independently.
The procedure for entering the first scaling point is:
a. Ensure that an input signal is present at the input terminals, this will usually be at
the low end of the signal range e.g. 4mA for a 4-20mA input.
b. At the CAL1 function press ^ and v simultaneously then release them. The
display will indicate the live input value. Do not be concerned at this stage if the live
input display value is not what is required. It is important that the live input value
seen is a steady value, if not then the input needs to be investigated before
proceeding with the scaling.
c. Press, then release the F button. The display will indicate SCL1 followed by a
value. Use the ^ or v button to change this value to the required display value at
this input. e.g. if 4mA was input and the required display at 4mA was 0 then ensure
0 is selected at SCL1 . Press the F button to accept changes or the P button to
abort the scaling.
Page 18 of 30 PM4AMMAN-1.4-0
Input
Input
CAL2
CAL2
CAL1
SCL1
CAL1
SCL2
Setting CAL1 Setting CAL2

CAL2 Second scaling point for 2 point scaling method.
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. At the CAL2 function press ^ and v simultaneously then release them. The
display will indicate the live input value. Do not be concerned at this stage if the live
input display value is not what is required. It is important that the live input value
seen is a steady value, if not then the input needs to be investigated before
proceeding with the scaling.
c. Press, then release the F button. The display will indicate SCL2 followed by a
value. Use the ^ or v button to change this value to the required display value at
this input. e.g. if 20mA was input and the required display at 20mA was 100 then
ensure 100 is selected at SCL1 . Press the F button to accept changes or the P
button to abort the scaling.
Note: it is not essential that 4 and 20mA are used as the live inputs for a 4-20mA
scaling but there must be at least a 10% of full scale difference between the CAL1
and CAL2 inputs, if this is not the case then a SPAN Err message will be seen
and the calibration point will not be accepted.
Page 19 of 30 PM4AMMAN-1.4-0
Enter via modeCAL
Place at the input a low level
signal for which the required
scaling value is known e.g. 4mA
Go to the function
and press and
simultaneously a "live"
display will now be seen
CAL1
^ v
If the "live" display is stable
press the button.The
message will be seen
F
SCL1
If the "live" display is stable
press the button.The
message will be seen
F
SCL2
Use the or button to
enter the required scale
value for the input then press
to accept the new scaling value
^ v
F
Use the or button to
enter the required scale value
forthe second input then press
and release to accept the
new scaling value
^ v
F
Press and release until
the message
is seen and the display
returns to normal measurement
FUNC End
F
The message will be seen.
Increase the input signal then
press and simultaneously.
Ideally the second input should be
as close to 100% of rangeas
possible e.g. 20mA. A "live"
display will now be seen
CAL2
^ v
Note:If the "live" display at any scaling
point is not stable then check the input
signal for stability.

CAL
OFSt Calibration offset - the calibration offset is a single point adjustment
which can be usedto alter the
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
entire range. To perform a calibration
offset press the ^and vbuttons
simultaneously at the CAL OFSt
function. A "live" reading from the
input will be seen,make a note of
this reading. Press the Fbutton, the message SCLE will now
be seen followed by the last scale value inmemory. Use the ^or vbutton to adjust
the scale value to the required display value for that input.
For example if the "live" input reading was50 and the required display value for this
input was 70 then adjust the SCLE value to 70.
ZERO
RNGE Zero range - the zero range function allows a limit value to be set (in engineering units) above which the display will not zero i.e. if a zero operation is attempted via
the Pbutton, remote input or set zero function when thedisplay value is greater
than the zero range setting the display will refuse to zero and give a ZERO RNGE
Err message (note that the CAL OFSt function is also affected by the ZERO
RNGE setting). For example if the zero range setting is 10 the instrument will only
respond to a zero operation if the display reading at the time is between -10 and 10.
If the zero rangefunction is not required it can be set to OFF by pressing the ^and
vbuttons simultaneously at this function. When switched off the instrument can be
zeroed no matter what the display value.
Note that the instrument keeps track of the value being zeroed at each operation,
when the total amount zeroed from repeated operations becomes greater than the
zero range value the instrument will reject the zero operation and a ZERO RNGE
Err message will be seen. To allow a zero operation beyond this point either the
ZERO RNGE function value will need to be raised or a new zero reference point
introduced via the CAL ZERO function.
If repeated zero operations are required the ZERO RNGE function should be set to
OFF or alternatively the tARE operation could be considered.
CAL
ZERO Calibration zero - the calibration zero function is used following a calibration via CAL1 and CAL2. A calibration zero operation at this time ensures that the display
zero and the ZERO RNGE reference zero are at the same point after a calibration.
After a calibrationthe calibration zero can also be used to select a zero point other
than the display zero as the reference for the ZERO RNGE function. For example if
the CAL ZERO operation is carried out with a display reading of 500 and a ZERO
RNGE reading of 10 the zero range function will allow the display to zero only if the
current display reading is between 490 and 510. To perform a calibration zero press
the ^and vbuttons simultaneously at the CAL ZERO function, a live reading will
be seen, press the Fbutton, the message CAL ZERO End should now be seen
indicating that the instrument has acceptedthe zero point. Although the display
reading will not change as a result of the calibration zero the input value on the
display at the timeof the operation will be the new zero reference point for the ZERO
RNGE function.
USER
En 4 4mA input scaling without a live input.
This scaling method can be used with 4-20mA inputs only. The instrument can be
scaled for a 4-20mA input without a live input i.e. this is an alternative method to the
CAL1 and CAL2 method of scaling. To perform the first point (USER En 4) scaling
simply press the ^and vbuttons simultaneously when the USER En4 function
has been reached. The display will now indicate a value. Use the ^or vbutton to
change this valueto the display value required for a 4mA input.
Page 20 of 30 PM4AMMAN-1.4-0
Input
offset
offset