DTM995【PDF 1/2 页】LCD TYPE K THERMOCOUPLE

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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

Standard Meter

Stock Number

DTM 995

Specification

Min.

Typ.

Max.

Unit

Place thermocouple at known reference

Accuracy (overall error)

***

% (±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

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

3.5

0.05

°C

°C/°C

Supply current with backlighting

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. 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)

CAL OFFSET

REAR

VIEW

?3.0

71.5 (2.81)

(0.12)

ON-BOARD SOLDER LINKS

www.lascarelectronics.com

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