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DTM 995
LCD Type K Thermocouple Indicator
This meter will give a direct reading in °C from a K type (chromel-alumel) thermocouple sensor. The circuit uses a converter/amplifier
which has Cold Junction Compensation. Calibration is by two 20-turn cermet potentiometers which allow sensitive adjustment of the
instrument. The meter can also operate without a thermocouple to read room temperature. The meter is housed in a robust carrier,
which can be bolted in place or panel mounted using the low profile bezel, window and clips provided. The meter can also be backlit for
use in poor visibility.
19mm (0.75“) Digit Height
Cold Junction Compensation
Simple Connection
LED Backlighting
CALIBRATION
1. Place thermocouple at 0°C and adjust OFFSET to
read 000.
Standard Meter
Stock Number
DTM 995
Specification
Min.
Typ.
Max.
Unit
2.
Place thermocouple at known reference
Accuracy (overall error)
***
1
% (±1 count)
temperature, eg. 100°C and adjust CAL
to read 100.
Thermocouple measurement range
-50
-58
+600
+1112
°C
°F
Power supply voltage (V+ to V-)**
7.5
9.0
24
V
3.
Repeat steps 1 and 2 until there are no more
adjustments of CAL and OFFSET required to
give desired readings.
Operating temperature range *
Temperature stability
Supply current
0
3.5
50
0.05
°C
°C/°C
mA
Supply current with backlighting
55
mA
In room temperature application adjust CAL to give the
same reading as a known temperature reference.
* Module temperature
** 5V supply option available - Contact Sales for details
*** To ensure maximum accuracy, re-calibrate periodically
CONNECTOR SOURCING GUIDE
SAFETY
METHOD
Screw Terminals - No Connector Required
The user must ensure that the incorporation of the DPM into the user ’s equipment conforms to the relevant sections of BS EN 61010 (Safety Requirements
for Electrical Equipment for Measuring, Control and Laboratory Use).
DIMENSIONS All dimensions in mm (inches)
76.0 (2.99)
72.5 (2.85)
a
a. 1.0 (0.04)
b. 2.0 (0.08)
c. 6.5 (0.26)
d. 11.5 (0.45)
e. 13.0 (0.51)
51.0 (2.01)
b c
Panel cut-out 72 x 40 (2.83 x 1.57)
Maximum panel thickness 3mm (0.12).
61.5 (2.42)
51.0 (2.01)
?5.7
(0.22)
d
e
CAL OFFSET
REAR
VIEW
?3.0
2
3
71.5 (2.81)
(0.12)
ON-BOARD SOLDER LINKS
www.lascarelectronics.com
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