HA249928
Issue 15 Jly 06
Page 28
100 MM RECORDER USER GUIDE
4.4.3 Range
(Replaces
section 3.2.9
)
This section allows the configuration of the input channels to be entered. Figure 4.4.3 shows the top level range con-
figuration menu for three cases:
1. Input type = thermocouple or RTD; Linearisation = TC or RTD type.
2. Input type = V, mV, mA or ohms; Linearisation type = linear or square root and
3. Input type = V, mV, mA or ohms; Linearisation function = Thermocouple or RTD type.
This last combination is used with transducer transmitters which do not incorporate their own linearisation tables.
Notes:
1.
Channel one must not be used whilst configured as 'Ohm' or 'RTD' unless the CJ sensor has been disconnected
(
figure 2.2
), or gross measurement errors will occur. When the CJ sensor disconnected, no other input channel
should be configured as T/C unless it uses an external CJC.
2.
The background (PV) display will show 'brng' (bad range) if any one or more of the following obtain:
a.
Input range low
≥
Input range high
b.
Linearisation range low
≥
Linearisation range high
c.
Scale low = Scale high
d.
Hardware capabilities are exceeded
e.
Linearisation type is inappropriate to the rest of the configuration
Figure 4.4.3 Channel range configuration menu ( 'Channel Tags' option items arrowed)
rng
Lo
1
Hi
Lin
Unit
CJC
ECJ
resp
decp
rng
type
set channel
number
1
1
1
1
1
1
1
1
1
Select linearisation
function
Select ˚C or ˚F
Select CJC type
(Only for Type = TC)
If CJC type = external,
enter temp
Set break response
high, low or none
Set display decimal
point position
Type = TC or RTD
Lin = TC or RTD type
rng
Lo
1
Hi
Lin
SCLo
SCHi
tAg
Shun
1
Enter shunt value
(only for Type = mA )
decp
rng
type
set channel
number
1
1
1
1
1
1
1
1
Type = Volts / mV / mA / ohm
Lin = Linear or square root
Select linearisation
function
Enter scale low and
high values
Enter text string
(4-character max.)
Enter input range
low and high values
Set display decimal
point position
rng
Lo
1
Hi
Lin
Lo
Hi
Unit
Shun
decp
rng
type
set channel
number
1
1
1
1
1
1
1
1
1
Type = Volts / mV / mA / ohm
Lin = T/C or RTD
resp
1
Set break response
high, low or none
Select linearisation
function
Enter linearisation
range low and high
values
Select ˚C or ˚F
Enter shunt value
(only for Type = mA )
Set display decimal
point position
resp
Set break response
high, low or none
1
Enter input range
low and high values
Enter input range
low and high values
tAg
1
Enter text string
(4-character max.)
tAg
1
Enter text string
(4-character max.)