AMALGAMATED INSTRUMENT PM4-TMR Guide
Model PM4-TMR
Panel Mount Timer Display/Controller
Operation and Instruction Manual
AMALGAMATED INSTRUMENT CO ABN: 80 619 963 692
NSW 2077 Australia Facsimile: +61 2 9476 2902 Internet: www.aicpl.com.au
1 Introduction
This manual contains information for the installation and operation of the PM4-TMR timer mon-
itor. The instrument may be set to operate in one of two basic modes namely period (PERd) or
scaled period (S.Prd) modes. The mode of operation is selected at the SEt OPER function.
The two modes of operation are:
•PERd - period of the input pulse display. The period of the input pulse is measured and
may be displayed in various different time display modes e.g. hours.minutes.seconds. Count
up from zero or count down from a preset value modes of operation are provided.
•S.Prd - scaled period display mode. This mode allows the measurement and scaling of
the duration of an input pulse. Since time is being measured the display would typically
be programmed and scaled to read in time (minutes, seconds etc.) or rate (metres/second,
litres/hour etc.). It is equally valid to scale the display to read in any units which may be a
function of time e.g. distance traveled in mm.
Selection of operating mode, calibration and scaling are all accomplished by push button operation.
“On screen” prompts are given for each function to assist in setting up the instrument. Some
changes may require dismantling the instrument to alter PCB links.
Selection of operating mode and scaling are all accomplished by push button operation (see page
19 for details). Display prompts are given for each function to assist in setting up the instrument.
Changes to input sensor type or optional outputs may require dismantling the instrument to alter
PCB links.
When the display is actively timing a decimal point will flash approximately once per second. If
no decimal point is used in the selected display the decimal point of the least significant digit (the
digit on the right of the display) will flash approximately once per second.
An inbuilt relay provides an alarm/control function, optional extra relays (allowing up to 7 in total),
optically isolated analog (single or dual channel), serial or digital (BCD or binary) re-transmission
and isolated excitation voltage may also be optionally provided. The single analog output option
can be set for retransmission or PI rate control. The dual analog output option allows output 1 to
be set for PI or retransmission, the second output can be set for retransmission only.
Unless otherwise specified at the time of order, your PM4 has been factory set to a standard
configuration, see the function table for your selected mode for default settings. Full electrical
isolation between power supply, input voltage and re-transmission output is 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 devices.
The PM4 series of Panel Mount Monitors are designed for high reliability in industrial applications.
The high brightness LED display provides good visibility even in areas with high ambient light
levels.
PM4TMRMAN-2.1-0 3 of 43
2 Mechanical Installation
Choose a mounting position as far away as possible from sources of electrical noise such as motors,
generators, fluorescent lights, high voltage cables/bus bars etc. An IP65 or IP67 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. A wall mount case is available, as an option, for situations
in which panel mounting is either not available or not appropriate. A portable carry case is also
available, as an option, for panel mount instruments.
Prepare a panel cut out of 45mm x 92mm +1 mm / – 0 mm (see diagram below). Insert the
instrument into the cut out from the front of the panel. From the rear of the instrument fit the
two mounting brackets 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: use the elastic band provided to hold the mounting bracket in place whilst
tightening securing screws.
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)
4 of 43 PM4TMRMAN-2.1-0
3 Electrical installation
3.1 Electrical installation
The PM4 Panel Meter is designed for continuous operation. No power switch is fitted to the unit.
It is recommended that an external switch and fuse be provided to allow the unit to be removed
for servicing.
The plug in, screw type, terminal blocks allow for wires of up to 2.5mm2to be fitted. Connect the
wires to the appropriate terminals as indicated below. Refer to connection details provided in this
chapter 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. Acknowl-
edgement of correct operation may be obtained by applying an appropriate input to the instrument
and observing the reading. The use of screened cable is recommended for signal inputs.
For connection details of optional outputs refer to the separate ”PM4 Panel Meter Optional Output
Addendum” booklet supplied when options are fitted.
Instrument data label example
PM4TMRMAN-2.1-0 5 of 43
3.2 Input connections for various operation modes
The operation mode is set via the OPER function. Note: Stop and Reset inputs must be voltage
free or 0V/5V open collector. The Start/Input input (terminal 11) can be set via the input links.
3.3 Transducer power supply
The standard internal power supply may be link selected to provide a regulated 5V or unregulated
9V or 18V to power the sensor. The maximum current available is 20mA. The 18V supply is not
available on DC powered instruments. Note to avoid damage to the circuit no more than one link
should be fitted in LK1 to LK4 i.e. either LK1 or LK2 or LK3 or LK4 can be fitted. An optional
internally fitted isolated and regulated power supply is available which can be configured for 5, 10,
12 or 24V supply (25mA max.).
3.4 Relay connections
The PM4 is supplied with one alarm relay as standard with connections on terminals 5 and 6,
extra relays are optionally available. The relay is a single pole, single throw type and is rated at
5A, 240VAC into a resistive load. The relay contact is voltage free and may be programmed for
normally open or normally closed operation. The relay will close when power is removed.
3.5 Ext In (Remote input) connections
The remote input connections are across terminals 7 and 8. A momentary or latching switch can
be fitted across these terminals to suit the operation selected at the R.INP function.
6 of 43 PM4TMRMAN-2.1-0
3.7 Notes
If the STOP and RESET inputs are used then these are not link configurable. Inputs to the STOP
and RESET inputs must be either voltage free contact or 0V/5V switching via open collector.
Input link notes for terminal 11 inputs are as follows.
HYST2 link should be in for inputs between 1V and 5V amplitude (low level of the input pulse
must be below 0.5V). HYST link should be in for inputs greater than 5V amplitude (low level of
the input pulse must be below 2V). If the input pulse amplitude is between 100mV to 1V both
HYST and HYST2 links can be taken out but the input will be at its highest sensitivity and will
be more prone to interference due to electrical noise and it therefore not normally recommended.
A maximum of one hysteresis link should be fitted.
The DC coupling link should be in for frequencies less than 10Hz.
The BIAS link should be in when input signal does not go below 0V.
For inputs above 24V (48VDC or RMS max.) both the VCC and GND link should be out.
The FREQ link is used to create a sharply rising edge to give a more definite pulse signal and
will be used mainly for input signals with slowly rising edges, typically sinewave AC inputs and
inductive inputs.
The LOW FREQ link is generally used for filtering out contact bounce when relay or switch
contacts are used. It can however be used with other input types to filter out high frequency noise
provided that the maximum input frequency of the pulse signal is less than 80Hz.
PM4TMRMAN-2.1-0 9 of 43
3.10 Input Output Configuration
If you need to alter the input or output configuration link settings proceed as follows:
Remove earth screw
which passes through the
case then slide out
the printed circuit board
1. Remove the plug in terminals
from the rear of the instrument
2. Remove the 4 x self tapping screws from
the back cover then remove the back cover
by pulling it away from the instrument
3. Remove the earth screw which passes
through the underside of the case then
slide out the board or boards
4. Configure the PCB links as requred, see appropriate chapter
5. Slide PCB back into case
6. Replace the earth screw which passes through the case
7. Refit the back cover and fix with the self tapping screws
8. Plug the terminal strips back into the rear of the instrument
12 of 43 PM4TMRMAN-2.1-0
4 Function table for Period measurement (PErd) mode
The function table below shows the functions which will be seen when the Set OPER function is
set to PErd.
Note: the order in which the functions appear on the display may not be exactly as shown below.
The availability and order of functions is determined by choice of function settings and options
fitted.
Functions in this first table are available in FUNC or CAL mode.
Display Function Range Default Your
record
Ref/Page
AxLo Low setpoint value for
designated alarm relay x
Any display
value or OFF
OFF See
5.1
6.3 /21
AxHi High setpoint value for
designated alarm relay x
Any display
value or OFF
OFF See
5.1
6.4 /22
AxHY Hysteresis value for the
designated alarm relay x.
0to 9999 10 See
5.1
6.5 /23
Axtt Trip time delay for the
designated alarm relay x.
0to 9999 0 See
5.1
6.6 /23
Axrt Reset time delay for the
designated alarm relay x.
0to 9999 0 See
5.1
6.7 /24
Axn.o
or
Axn.c
Alarm relay xaction to
normally open (de-energised) or
normally closed (energised)
Axn.o or
Axn.c
Axn.o See
5.1
6.8 /24
AxSP
or
Axt1
etc.
Relay operation independent
setpoint or trailing setpoint
(∗Optional)
AxSP or
Axt1 etc.
AxSP See
5.1
6.9 /24
brGt Display brightness level 1to 15 15 6.10 /25
duLL Display remote brightness
switching
0to 15 1 6.11 /25
REC_ Analog output option low
display value (∗Optional)
Any display
value
06.20 /28
REC~ Analog output option high
display value (∗Optional)
Any display
value
1000 6.21 /28
bAr_ Bargraph low value (seen only
on bargraph display
instruments)
Any display
value
06.12 /25
bAr~ Bargraph high value (seen only
on bargraph display
instruments)
Any display
value
1000 6.13 /26
P.SEt Preset value Any display
value
06.31 /32
(∗Optional)—this function will only be accessible if the relevant option is fitted
Functions in this second table are available in CAL mode
PM4TMRMAN-2.1-0 13 of 43
Display Function Range Default Your
record
Ref/Page
bAr
tYPE
Bargraph type for instruments
with bargraph display (seen
only on bargraph display
instruments)
bAr,S.dot,
d.dot,
C.bAR or
r.dot
bAr 6.14 /26
dGOP Digital output option mode
(∗Optional)
bcd,b.SCL,
bin or bin2
bin2 6.15 /27
dG.OP Digital output option polarity
(∗Optional)
AIo or AHi AIo 6.16 /27
bcd
Strt
Digital output option BCD start
position (∗Optional)
0,1or 2 0 6.17 /27
diG_ Digital output option low value
(∗Optional)
Any display
value
06.18 /28
diG~ Digital output option high value
(∗Optional)
Any display
value
1000 6.19 /28
REC
ctrI
Analog output PI control - not
applicable to this instrument
(∗Optional)
on or OFF OFF 6.22 /29
drnd Display rounding 1to 5000 1 6.23 /29
R.INP Remote input function NONE,
P.HLd,
d.HLd,Hi,
Lo,HiLo,
ZERO,
SP.Ac,
No.Ac,
dISP,duLL
or G.rSt
NONE 6.24 /29
P.but Pbutton function NONE,Hi,
Lo,HiLo,
ZERO,dISP,
FUNC or
G.rSt
NONE 6.25 /30
ACCS Access mode OFF, EASY,
NONE or ALL
OFF 6.26 /31
SPAC Setpoint access mode
(∗Optional)
A1, A1-2 etc. A1 6.27 /31
Lo
dISP
Low overrange warning - not
applicable to this instrument
Any display
value or OFF
OFF 6.28 /31
HIGH
dISP
High overrange warning - not
applicable to this instrument
Any display
value or OFF
OFF 6.29 /32
dISP Display visual warning - not
applicable to this instrument
FLSH or
-or-
FLSH 6.30 /32
dCPt Decimal point 0to 0.02 0 6.32 /32
(∗Optional)—this function will only be accessible if the relevant option is fitted
14 of 43 PM4TMRMAN-2.1-0
OPER Operation mode for PErd
mode
run,dur,
PLSE,SnGL,
PLS.H SnGH,
UP,dn or
A.dur
dur 6.33 /33
dISP
RNGE
Display range SECS,
MM.SS,h.M.S,
MMM,hh.MM,
hrs,dd.hh
or dAYS
SECS 6.35 /35
INPt Input edge type high or Lo high 6.38 /36
S.INP SET terminal input function high or Lo high 6.39 /37
c.rSt Totaliser counter reset value ZERO or
PSEt
ZERO 6.40 /37
c.rSt Totaliser counter reset signal Lo,LoE,Hi
or HiE
Lo 6.41 /37
dbnc Debounce time m/s 0to 9999 0 6.42 /37
SEt
OPER
Set display operation S.Prd,
PERd,FREQ,
totL or
both
RAtE 6.43 /38
bAUd
RAtE
Baud rate for serial
communications (∗Optional)
300, 600,
1200, 2400,
4800, 9600,
19.2 or 38.4
9600 6.44 /38
PrtY Parity for serial communications
(∗Optional)
NONE, EUEN
or odd
NONE 6.45 /38
O.Put Output for serial
communications (∗Optional)
dISP, Cont,
POLL,A.buS
or M.buS
Cont 6.46 /38
Addr Instrument address for serial
communications (∗Optional)
0to 31 0 6.47 /39
(∗Optional)—this function will only be accessible if the relevant option is fitted
4.1 Relay table
Record your relay settings in the table below
Display Relay 1 Relay 2 Relay 3 Relay 4 Relay 5 Relay 6 Relay 7
AxLo
AxHi
AxHY
Axtt
Axrt
Axn.o or Axn.c
PM4TMRMAN-2.1-0 15 of 43
5 Function table for Scaled Period (S.Prd) mode
The function table below shows the functions which will be seen when the Set OPER function is
set to S.Prd. Note: the order in which the functions appear on the display may not be exactly as
shown below. The availability and order of functions is determined by choice of function settings
and options fitted.
Functions in this first table are available in FUNC or CAL mode.
Display Function Range Default Your
record
Ref/Page
AxLo Low setpoint value for
designated alarm relay x
Any display
value or OFF
OFF See
5.1
6.3 /21
AxHi High setpoint value for
designated alarm relay x
Any display
value or OFF
OFF See
5.1
6.4 /22
AxHY Hysteresis value for the
designated alarm relay x.
0to 9999 10 See
5.1
6.5 /23
Axtt Trip time delay for the
designated alarm relay x.
0to 9999 0 See
5.1
6.6 /23
Axrt Reset time delay for the
designated alarm relay x.
0to 9999 0 See
5.1
6.7 /24
Axn.o
or
Axn.c
Alarm relay xaction to
normally open (de-energised) or
normally closed (energised)
Axn.o or
Axn.c
Axn.o See
5.1
6.8 /24
AxSP
or
Axt1
etc.
Relay operation independent
setpoint or trailing setpoint
(∗Optional)
AxSP or
Axt1 etc.
AxSP See
5.1
6.9 /24
brGt Display brightness level 1to 15 15 6.10 /25
duLL Display remote brightness
switching
0to 15 1 6.11 /25
REC_ Analog output option low
display value (∗Optional)
Any display
value
06.20 /28
REC~ Analog output option high
display value (∗Optional)
Any display
value
1000 6.21 /28
bAr_ Bargraph low value (seen only
on bargraph display
instruments)
Any display
value
06.12 /25
bAr~ Bargraph high value (seen only
on bargraph display
instruments)
Any display
value
1000 6.13 /26
(∗Optional)—this function will only be accessible if the relevant option is fitted
16 of 43 PM4TMRMAN-2.1-0
Functions in this second table are available in CAL mode
Display Function Range Default Your
record
Ref/Page
bAr
tYPE
Bargraph type for instruments
with bargraph display (seen
only on bargraph display
instruments)
bAr,S.dot,
d.dot,
C.bAR or
r.dot
bAr 6.14 /26
dGOP Digital output option mode
(∗Optional)
bcd,b.SCL,
bin or bin2
bin2 6.15 /27
dG.OP Digital output option polarity
(∗Optional)
AIo or AHi AIo 6.16 /27
bcd
Strt
Digital output option BCD start
position (∗Optional)
0,1or 2 0 6.17 /27
diG_ Digital output option low value
(∗Optional)
Any display
value
06.18 /28
diG~ Digital output option high value
(∗Optional)
Any display
value
1000 6.19 /28
REC
ctrI
Analog output PI control - not
applicable to this instrument
(∗Optional)
on or OFF OFF 6.22 /29
drnd Display rounding 1to 5000 1 6.23 /29
R.INP Remote input function NONE,
P.HLd,
d.HLd,Hi,
Lo,HiLo,
ZERO,
SP.Ac,
No.Ac,
dISP,duLL
or G.rSt
NONE 6.24 /29
P.but Pbutton function NONE,Hi,
Lo,HiLo,
ZERO,dISP,
FUNC or
G.rSt
NONE 6.25 /30
ACCS Access mode OFF, EASY,
NONE or ALL
OFF 6.26 /31
SPAC Setpoint access mode
(∗Optional)
A1, A1-2 etc. A1 6.27 /31
Lo
dISP
Low overrange warning - not
applicable to this instrument
Any display
value or OFF
OFF 6.28 /31
HIGH
dISP
High overrange warning - not
applicable to this instrument
Any display
value or OFF
OFF 6.29 /32
dISP Display visual warning - not
applicable to this instrument
FLSH or
-or-
FLSH 6.30 /32
(∗Optional)—this function will only be accessible if the relevant option is fitted
PM4TMRMAN-2.1-0 17 of 43
dCPt Decimal point 0to 0.02 0 6.32 /32
OPER Operation mode for S.Prd
mode
PLSE,SnGL,
PLS.R or
SnG.R
dur 6.34 /35
PErd
INPt
Period input scaling value Any whole
number
16.36 /36
PErd
SCLE
Period scale factor Any whole
number
16.37 /36
INPt Input edge type high or Lo high 6.38 /36
c.rSt Totaliser counter reset value ZERO or
PSEt
ZERO 6.40 /37
c.rSt Totaliser counter reset signal Lo,LoE,Hi
or HiE
Lo 6.41 /37
dbnc Debounce time m/s 0to 9999 0 6.42 /37
SEt
OPER
Set display operation S.Prd,
PERd,FREQ,
totL or
both
RAtE 6.43 /38
bAUd
RAtE
Baud rate for serial
communications (∗Optional)
300, 600,
1200, 2400,
4800, 9600,
19.2 or 38.4
9600 6.44 /38
PrtY Parity for serial communications
(∗Optional)
NONE, EUEN
or odd
NONE 6.45 /38
O.Put Output for serial
communications (∗Optional)
dISP, Cont,
POLL,A.buS
or M.buS
Cont 6.46 /38
Addr Instrument address for serial
communications (∗Optional)
0to 31 0 6.47 /39
(∗Optional)—this function will only be accessible if the relevant option is fitted
5.1 Relay table
Record your relay settings in the table below
Display Relay 1 Relay 2 Relay 3 Relay 4 Relay 5 Relay 6 Relay 7
AxLo
AxHi
AxHY
Axtt
Axrt
Axn.o or Axn.c
18 of 43 PM4TMRMAN-2.1-0
6 Explanation of functions
The PM4 setup and calibration functions are configured through a push button sequence. The
three push buttons located at the rear of the instrument (also at the front on some display options)
are used to alter settings. Two basic access modes are available:
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.
Once CAL or FUNC mode has been entered you can step through the functions, by pressing and
releasing the Fpush button, until the required function is reached. Changes to functions are
made by pressing the ^or vpush button (in some cases both simultaneously) when the required
function is reached. See the flow chart example on the following page.
P F
P F P F
P F
P F
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 2 below.
2. When the "wake up"
messages have finished
and the display has settled
down to its normal reading
press, then release the
button.
Move to step 3 below.
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 the first function.
^
^
^^
FUNC
FUNC
F
F
F
FF
CAL
CAL
Note: If step 1 above has been completed then 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 has been removed.
CAL
No special power up procedure
is required to enter mode.FUNC
Two basic modes of operation are available namely PErd or S.Prd. This chapter covers the
explanation of available functions for both of these modes. Refer to the individual function tables
for each mode for an overview of which functions are available for each mode.
PM4TMRMAN-2.1-0 19 of 43
6.1 Period measurement (PErd mode)
To choose the period measurement mode select PErd at the SEt OPER function. The period
mode operation is used when a display of the actual time period of the input pulse is required (with
no scaling). Eight different period display options are given, from a display in seconds to a display
in hours. These display options may be selected at the dISP RNGE function. You will also need
to choose the required operation mode from the OPER function There are various operation modes
to choose from, allowing a wide choice of timing methods. The instrument will measure the period
of the pulse width from either the low or high going edge of the pulse, selection of which edge to
start measurement from is via the INPt function.
6.2 Scaled period measurement (S.Prd) mode
To choose the scaled period measurement mode select S.Prd at the SEt OPER function. The
scaled period mode allows an event to be timed and scaled to match the display units required
rather than showing the true time. This mode may be selected via the SEt OPEr function.
The scaled period mode has four different operating modes, namely PLSE (pulse), SnGL (single
pulse), PLS.R (pulse reciprocal) and SnG.R (single pulse reciprocal). The pulse reciprocal and
single pulse reciprocal allow the display to be scaled with the result being inversely proportional
to time, this allows scaling in units such as velocity e.g. cm/sec, km/hr etc.
20 of 43 PM4TMRMAN-2.1-0
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