Mass Technologies, Inc.

P.O. Box 173187

Arlington, TX 76003-3187

 

DM640
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Battery Powered
4 Digit Display
RTD or T/C Input
FM & ATEX Approvals Pending
EX & NEMA 4X Housings
Potted Electronics

BATTERY POWERED THERMOMETER
DM640 Series

DESCRIPTION
The Model DM600 Cap Series is a line of battery powered temperature indicators which accepts a Pt100 RTD or thermocouple input depending on the model. The face of the Cap houses a 4 digit LCD display. The back contains the screw terminal connections, battery and three push buttons used to program and calibrate the unit.

The sensor type is selected from a simple to use menu system which is navigated by the use of the three push-button keys. The menu also allows the user to select units (ºC or ºF), offset temperature, decimal point position, and password protection.

The entire assembly is sealed into a Cap that fits directly into the SCH series of NEMA 4X and Explosion Proof housings. Optional mounting kits are available for placement of the Cap into other style housings if needed.

Intrinsically Safe FM and ATEX approved versions are pending.

SPECIFICATIONS @ 68 °F
Temperature Versions of DM640

.Model DM640/P DM640/TC
.Input .Pt100, Ni 120, Custom .T/C types K, J, T, R, S, E, L, N, B
.Accuracy .0.30°F ± 0.1% Reading
.plus Sensor
.± 0.1% FS ± 0.9°F
.plus Sensor
.CJ Tracking   .0.05 °F/°F
.Range To suit maximum range of sensor or 9999 whichever is less
.Display .4 Digit LCD
 
RTD/TC type
Units (°C or °F)
Offset Temperature
Decimal Point Postion
Password
.Battery .Single AA size Lithium Thionyl Chloride 3.6V
.Battery Life .3 years Minimum
.Ambient .14 to 122°F
.IS Approval .FM & ATEX (Pending)
.Ambient Storage .-4 to 185°F
.Ambient Humidity .10 to 90% RH
.EMC Emissions .BS EN61326
.EMC Immunity .BS EN61326
.Connection .Screw Terminals
.Wire Size .16 AWG Maximum

 

SENSORS and RANGES

T/C Type Range (°C) Range (°F)
K -200 to 1370 -328 to 2498
J -200 to 1200 -328 to 2192
T -210 to 400 -346 to 752
R -10 to 1760 * 14 to 3200
S -10 to 1760 * 14 to 3200
E -200 to 1000 -328 to 1832
L -100 to 600 -148 to 1112
N -180 to 1300 -292 to 2372
B 0 to 1800 ** 32 to 3272

.*   types R and S accuracy over range 1472 to 2912°F

.** type B accuracy over range 750 to 3250°F

RTD Type Range (°C) Range (°F)
PT100 -200 to 850 -328 to 1562
NI120 -74 to 315 -100 to 600
.Custom User

DOWNLOADS
DM640-P Instruction Manual

DM640-TC Instruction Manual

DM640 Literature


ORDER CODE

DM640/ Sensor / Housing / Approval

.DM640 Basic Model Number
.Sensor .P = RTD Input (PT100, NI120)
.T = Thermocouple Input.(K, J, T, R, S, E, L, N, B)
.Housing .SCH4/A, B, C or D = NEMA 4X, IP67
.SCH15 = Stainless Steel, NEMA 4X, IP67
.SCH16 = Aluminum EX FM (3615)

.(SCH4/A - Supplied if no housing is specified.)

.Approval .O = General Purpose
.X = Intrinsically Safe (FM & ATEX Pending)

ACCESSORIES

....RMK-5 .DIN Rail Adapter for SCH4 Housing
....RMK-7 .Wall Mount Bracket for SCH4 Housing
....ACC700-01 .Mounting Kit for SCH16 Housing
....Inquire .2" Pipe Mounting Bracket
 

 

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