Function
Range
Description
INPt
chnI
1
to
4
or
1
to
8
Selects the number of input channels being used. Select
1
to
4
for three wire
RTDs or
1
to
8
for two wire RTDs. For the purposes of correct display, relay
operation & retransmission it is important that the correct number of channels
is chosen since channels without inputs will be seen by the PM4 as a high
overrange and the error message "
----
" will be displayed for that channel.
SEt
dISP
SCAN
,
HIGH
,
Lo
,
AUGE
,
dIFF
dIF1
or
ch1
to
ch8
Selects the display operation mode from the choices below. In each case
below the
^
or
v
button can be used to toggle between channels. If the
dISP unit
function is set to
NONE
,
“C
or
“F
then the channel number will
be displayed prior to the reading for that channel.
SCAN
- the display will automatically scroll through each channel. The time
each channel display is held is set by the
SCAN dLAY
function.
HIGH
- the highest temperature will be displayed. When scrolling through the
displays using the
^
or
v
button the message
HIGH
will be displayed prior to
the reading and if
ch r
or
ch L
is selected at the
dISP unit
function the
channel number with the highest reading will then be displayed alongside the
high value.
Lo
-the lowest temperature will be displayed. When scrolling through the
displays using the
^
or
v
button the message
Lo
will be displayed prior to
the reading and if
ch r
or
ch L
is selected at the
dISP unit
function the
channel number with the lowest reading will then be displayed alongside the
low value.
AUGE
- the average of all temperatures will be displayed. When scrolling
through the displays using the
^
or
v
button the message
AUGE
will be
displayed prior to the reading and if
ch r
or
ch L
is selected at the
dISP
unit
function the letter
A
will then be displayed alongside the average value.
dIFF
- the difference between the highest and lowest temperatures will be
displayed. When scrolling through the displays using the
^
or
v
button the
message
dIFF
will be displayed prior to the reading and if
ch r
or
ch L
is
selected at the
dISP unit
function the letter
d
will be displayed alongside
the difference reading.
dIF1
- the largest difference between channel 1 and the other channels used
will be displayed. If channel 1 is the lowest value the difference displayed will
be shown as a positive value. If channel 1 is the highest value then the
difference displayed will be a negative value. When scrolling through the
displays using the
^
or
v
button the message
dIF1
will be displayed prior to
the reading and if
ch r
or
ch L
is selected at the
dISP unit
function the
letter
d
will be displayed alongside the difference reading.
ch1
,
ch2
etc. - the channel selected will be displayed as the default display.
dEG
tYPE
"C
,
"F
or
AbS
Sets the degree measurement type, choose from:
"C
- displays in Centigrade
"F
- displays in Fahrenheit
AbS
- displays in Absolute (Kelvin)
DISP
unit
NONE
“C
“F
ch r
or
ch L
Display unit - certain display unit characters can be selected if required, to
display temperature units or to indicate which channel is being displayed.
Choices are:
NONE
i.e. no display units e.g.
23$5
“C
e.g.
45"C
“F
e.g.
18"F
C
e.g.
4%3C
ch r
e.g.
23&6 4
where 4 is the channel shown right of temperature
ch L
e.g.
4 23&6
where 4 is the channel shown left of temperature
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 to large to display then an error
message
-or-
will appear on the display.
The temperature display will be on the left of the display when
chnI
is
selected and on the right for the other choices.
Page 15 of 27
PM4RT8MAN-1.4-0