INTRODUCTION
The
IDT has two different modes of operation. The first, Run Mode, is used
to display process value and display or clear peak and valley values.
The other mode, Configuration Mode, is used to navigate through the menus
options and configure the meter.
Note: The S51 jumper
must be removed (which is the factory setting) and the S4 jumper must
be installed (which is not the factory setting) for all menu configuration
options to be available. (See page 34 for further jumper information.).
Overview
This part of the manual, Operation, will explain both the Run Mode and
the Configuration Mode and is divided into the following sections:
Meter Buttons
Display Descriptions
Menu Configurations
Meter
Buttons
|
Button
|
DESCRIPTION
|
|
RESET
|
Reset
the peak and valley values |
|
MENU
|
Enter Configuration (Menu) mode |
 /MIN
|
Display the valley value (flashing) |
 /MAX
|
Display the peak value (flashing) |
|
C/F
|
Toggle
display between ºC and ºF |
Display
Descriptions
|
Display
Message
|
DESCRIPTION
|
|
0000
|
Peak
value to follow |
|
0000
|
Valley value to follow |
|
0l
|
Open thermocouple input |
|
rst
|
Peak/Valley
Reset |
Menu
Configurations
| |
Displayed
as:
|
|
J
|
J
|
|
K
|
k
|
|
T
|
t
|
|
E
|
E
|
|
N
|
n
|
|
DIN
J
|
dinj
|
|
R
|
r
|
|
t
|
s
|
Selecting
the Input Thermocouple Type (TYPE)
The IDT is designed to handle up to eight different thermocouple types.
To select the thermocouple type, follow these steps:
1.
Press the MENU button. The meter will momentarily
displays: TYPE
2. Press the /MIN
button.
You may scroll through the following choices: (see table)
3.
Press the MENU button to store and activate your selection.
Selecting the Decimal Point (DEC.P)
The IDT can display temperatures in 1º or 0.1º resolution.
When using type R or S the meter will only be indicating with 1º resolution.
The DEC.P menu item will not be available for these two types of thermocouples.
1. Press MENU until display displays: dEcP
2. After a moment the display will indicate the currently selected
decimal point (resolution) configuration.
3. AUTO will be displaced if the meter is configured to
display any temperature between -100º and 1000º with 0.1 resolution
(meter will switch to 1º resolution above and below these temperatures
automatically.)
4. 1dEg will be displayed when the meter is configured for
1º resolution.
5. Pressing the /MIN
button allows you to toggle between these choices:
AUTO: (0.1º/1º)
1dEg: (1º) resolution
6. Press
the MENU button to save and activate your selection.
Meter
Cold-Junction Offset Calibration procedure
This menu
item will allow you to adjust the cold junction offset calibration.
1.
Press MENU until meter flashes: CJZ (cold junction zero)
2.
Connect the proper thermocouple to the input at J4 and using a thermocouple
calibrator apply 0.0ºC.
3. Press /MAX
to display the cold- junction offset. (If the meter reading at this point
is more than 5.0 recheck your Thermocouple connections and make sure 0.0ºC
is applied.)
4. The Cold-junction
calibration on the IDT is semi-automatic. Press /MENU
to activate the internal compensation. The display will begin to flash
and automatically adjust the offset reading on the display to 0.0 (▒ 0.1)
This automatic cold
junction calibration should be all that is necessary to calibrate the
CJ offset, however if you want to additionally adjust the offset manually,
the /MAX and
/MINbuttons
at this point can be used to manually increase (/MAX
) or decrease (/MIN)
the display 0.1º each time /MAX
or /MIN
is pressed. After each press allow several seconds to let the display
stabilize. Press MENU to save and activate the calibration. (Meter
will briefly display Stor.) The following menu items will only be available
with S4 installed.
|
CNFG
|
cF = 0 0
|
DEFAULT
|
|
CNFG
|
cf = 1, 2
|
Functions
not available
|
|
LINE
50H 60H
|
60H
|
DEFAULT
|
| CAL
= For use only by qualified personal with accurate calibration
equipment |
Line
Frequency Selection (LINE)
This
item will only be available if the S4 jumper, which enables the calibration
configuration, is installed!
This menu item will
allow you to select the local line frequency used by the meter.
1. Press MENU until display displays: LINE
2. After a moment the display will indicate the currently selected
line frequency.
3. Pressing the /MIN
button allows you to toggle between these choices:
50H (50 Hz)
60H (60 Hz)
4. Press the MENU button to save and activate your selection.
Calibration Menu (CAL)
Caution: It is not necessary to calibrate a brand new meter, it
arrives completely calibrated. Accessing the calibration menu will affect
the meter's calibration and should only be performed by qualified personnel
with accurate test equipment.
Meter SPAN calibration procedure
This item will only be available if the S4 jumper, which enables the
calibration configuration, is installed!
The Span calibration does not require any special compensated thermocouple
wires at the input terminals. Standard copper wire hooked up to a mV calibration
source is required.
This menu item will allow you to adjust the SPAN calibration used
by the meter.
1. Press MENU until meter flashes: cAL
2. Press /MIN
button. Meter will now display: SP.C (Span Calibration)
3. Press /MAX
button. Meter will display: 0 In
4. Apply 0 mV to input terminals 1 and 2 of J4. Let meter stabilize
for 10 seconds then press MIN to accept. Meter will display: 75 In
5. Apply 75 mV to input terminals at J4. Let meter stabilize for
10 seconds then press MIN to accept. Meter will display: 0 In (40 mV zero
reading)
6. Apply 0 mV to input terminals at J4. Let meter stabilize for
10 seconds then press MIN to accept. Meter will display: 40 In
7. Apply 40 mV to input terminals at J4. Let meter stabilize for
10 seconds then press MIN to accept.
8. Meter will briefly display rSt indicating the span calibration
is saved in non-volatile memory. |
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