® ® www.datel.com DMS-EB-TCJ/TCK Thermocouple Input Application Boards for DMS-30PC/LCD Meters Actual Size Features Technical Notes • Displays –50 to +200°C range • Interfaces with type J or K type thermocouples Description: The DMS-EB-TCJ and DMS-EB-TCK Application Boards interface type J or K thermocouples to DATEL's low-power, ±2V input, DMS-30PC-1-RL or DMS-30LCD-1-5 digital voltmeters. These low-cost add-on boards provide a quick easy method of displaying temperature (in degrees Celsius only) within a –50 to +200°C range. • Typical accuracies as low as ±1.5°C • Use with: DMS-30PC-1-RL DMS-30LCD-1-5 Functional Specifications (TA = +25°C, VCC = +5V) Sensors Type J and K thermocouples Temperature Measurement Range –50 to +200°C Accuracy: DMS-EB-TCJ –50 to 0°C 0 to +200°C DMS-EB-TCK –50 to 0°C 0 to +200°C Installation: A screw-type terminal block (TB1) accepts direct thermocouple inputs and provides quick connection for the +5V power supply. All necessary I/O connections for the meter — including activation of the correct decimal point — are built-in. Simply solder the board to the meter, connect the appropriate thermocouple, and the installation is complete. Using low-power meters, with either LCD or LED displays, will maintain uniform temperatures across the board and keep temperature-gradient induced errors to a minimum. T C U D t Model O R P en m E e c T r Repla E L O ctory fo S B O act Fa t Con ±6°C typ., ±10°C max. ±4°C typ., ±8°C max. ±6°C typ., ±10°C max. ±1.5°C typ., ±3°C max. Primary Operating Power +5V (±5%) Accuracy: As the accuracy specifications indicate, the DMS-EB-TCJ and TCK boards are for general-purpose temperature monitoring over the range of –50 to +200°C. However, fairly high accuracy can be obtained with K thermocouples from 0 to +200°C. For higher accuracy temperature readings, see the DMS-EB-HTB. ( ) IN P U T L O (+ ) IN P U T H I U 1 U 2 T B 2 T B 1 6 1 C 3 C 2 C 3 + 5 V S U P P L Y 0 .2 2 µ F 1 2 3 ' Operating Temperature Range 0 to +60°C R E F . IN & % 2 C 1 0 .2 2 µ F B O O S T 3 C A P + G N D 4 6 6 L V V C A P O U T 5 7 O S C U 2 IN + C A L M 1 4 C O M P T V O C F B 7 ! 1 3 R E T U R N " 1 0 9 D P 3 # 8 $ C 4 5 5 V 1 2 + A L M U 1 C O M 8 V + + IN + T 4 1 R E F . O U T Humidity 0 to 95%, non-condensing 1 C 4 C 1 1 1 Input Current (Board only) +0.6mA typ., +1mA max. Storage Temperature Range –20 to +75°C 1 2 0 .2 2 µ F C 2 0 .2 2 µ F Dimensions 2.02" (51.31mm)L x 0.83" (21.08mm)W Ordering Information DMS-EB-TCJ DMS- EB-TCK DMS-BZL1 DMS-BZL2 Type J thermocouple input board Type K thermocouple input board Bezel assembly Bezel assembly with sealing gasket T B 1 T B 1 T B 2 N C 1 2 1 2 N C 5 6 + 5 V 5 V R e tu rn K W ir in g T C (R e d ) + T C ( Y e llo w ) T C + T C ( R e d ) ( W h ite ) J W ir in g Figure 1. DMS-EB-TCJ/TCK Schematic Diagram DS-0397B 07/00 DATEL, Inc., Mansfield, MA 02048 (USA) • Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 • Email: [email protected] • Internet: www.datel.com DATEL makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. The DATEL logo is a registered DATEL, Inc. trademark.