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CTR5000 Operating Instructions
ASL operating instructions, model CTR5000
19
The conversion coefficients are fixed for DIN90 (also for CvD and DIN68), so no further data
entry is required. However, if ITS90 is used as a conversion method, coefficient data will have
to be entered using the simple coefficient editor.
A probe’s conversion algorithm and its coefficients are stored in the instrument’s internal non-
volatile memory. Up to 72 probes may be individually defined
6
Set-up details for the probes are covered later in the manual.
2.3
Getting started
Read the manual thoroughly before using the instrument
Unpack the instrument and allow to thermally stabilise before switching on
(particularly if the instrument has been stored in a cold environment)
Connect a 100 ohm resistor (any type will do) to channel A (as described in
section 3.5)
7
Connect the mains lead and switch on. After a short diagnostic check
sequence, the CTR5000 will start measuring the resistance
8
Change one setting at a time to familiarise yourself with each of the options.
Start with the
Unit
key (below the
Unit
legend) at the bottom right of the LCD,
changing to
C,
F, K and back to ohms –
Chan Hold
Unit
Press the
Chan
key under the bottom left of the LCD. The bottom row of the LCD
will change to
9
–
Ch A
Ch B
More Diff
Press the
Ch B
key and the display will change to show channel B (indicated at
the top left of the LCD). The bottom line of the LCD will revert to display –
6
The probe’s information also defines its units, which channel uses the probe and an optional probe identifier string.
7
If a probe or resistor is not available, use the internal check resistor by selecting channel 99. To do this, press the 9 key on
the numerical keypad twice (99) and then press the enter key on the keypad.
IntR
will be displayed at the top left of the
LCD. The internal check resistor will be deselected when the channel is changed to any other (or the CTR5000 turned off).
8
As supplied, the CTR5000 will be set for this measurement.
9
The
More
menu item will only be present if more than 2 channels are fitted.
Содержание CTR5000
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